2818 lines
90 KiB
Bash
Executable File
2818 lines
90 KiB
Bash
Executable File
#!/usr/bin/env bash
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#
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# bash is needed for some distros which use dash as /bin/sh and for tcp sockets which
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# this program uses a couple of times. Also some expressions are bashisms as I expect
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# them to be faster. Idea is to not overdo it though.
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# testssl.sh is a program for spotting weak SSL encryption, ciphers, version and some
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# vulnerablities or features
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#
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# Devel version is availabe from https://github.com/drwetter/testssl.sh,
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# stable version from https://testssl.sh
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VERSION="2.3dev" # any char suffixes denotes non=stable
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SWURL="https://testssl.sh"
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SWCONTACT="dirk aet testssl dot sh"
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# Author: Dirk Wetter, copyleft: 2007-2015, contributions so far see CREDIT.md
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#
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# License: GPLv2, see http://www.fsf.org/licensing/licenses/info/GPLv2.html
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# and accompanying license "LICENSE.txt". Redistribution + modification under this
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# license permitted.
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# If you enclose this script or parts of it in your software, it has to
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# be accompanied by the same license (see link) and the place where to get
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# the recent version of this program. Don't violate the license!
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#
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# USAGE WITHOUT ANY WARRANTY, THE SOFTWARE IS PROVIDED "AS IS". USE IT AT
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# your OWN RISK
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# HISTORY: I know reading this shell script is sometimes neither nice nor is it rocket science
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# (well ok, maybe the bash sockets are kind of cool).
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# It all started with a few openssl commands. It is a such a good swiss army knife (see e.g.
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# wiki.openssl.org/index.php/Command_Line_Utilities) that it was difficult to resist wrapping
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# with some shell commandos around it. This is how everything started
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# Probably you can achieve the same result with my favorite zsh (zmodload zsh/net/socket b4
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# -- checkout zsh/net/tcp too! -- but bash is way more often used, within Linux and: cross-platform!
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# Q: So what's the difference between https://www.ssllabs.com/ssltest or
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# https://sslcheck.globalsign.com/?
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# A: As of now ssllabs only check webservers on standard ports, reachable from
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# the internet. And the examples above are 3rd parties. If those restrictions are fine
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# with you, they might tell you more than this tool -- as of now.
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# Note that for "standard" openssl binaries a lot of features (ciphers, protocols, vulnerabilities)
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# are disabled as they'll impact security otherwise. For security testing though we
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# need all those features. Thus it's highly recommended to use the suppied binaries.
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# Except on-available local ciphers you'll get a warning about missing features
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# following variables make use of $ENV, e.g. OPENSSL=<myprivate_path_to_openssl> ./testssl.sh <host>
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COLOR=${COLOR:-2} # 2: Full color, 1: b/w+positioning, 0: no ESC at all
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SHOW_LOC_CIPH=${SHOW_LOC_CIPH:-0} # determines whether the client side ciphers are displayed at all (makes no sense normally)
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VERBERR=${VERBERR:-1} # 0 means to be more verbose (some like the errors to be dispayed so that one can tell better
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# whether handshake succeeded or not. For errors with individual ciphers you also need to have SHOW_EACH_C=1
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LOCERR=${LOCERR:-0} # displays the local error
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SHOW_EACH_C=${SHOW_EACH_C:-0} # where individual ciphers are tested show just the positively ones tested
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SNEAKY=${SNEAKY:-1} # if zero: the referer and useragent we leave while checking the http header is just usual
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HEADER_MAXSLEEP=${HEADER_MAXSLEEP:-3} # we wait this long before killing the process to retrieve a service banner / http header
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SSL_NATIVE=${SSL_NATIVE:-0} # we do per default bash sockets!
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#FIXME: consequently we should mute the initial openssl s_client -connect as they cause a 400 (nginx, apache)
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#FIXME: still to be filled with (more) sense:
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DEBUG=${DEBUG:-0} # if 1 the temp files won't be erased. 2: list more what's going on (formerly: eq VERBOSE=1), 3: slight hexdumps
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# and other info, 4: the whole nine yards of output
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CAPATH="${CAPATH:-/etc/ssl/certs/}" # Does nothing yet. FC has only a CA bundle per default, ==> openssl version -d
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HSTS_MIN=180 # >180 days is ok for HSTS
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HPKP_MIN=30 # >=30 days should be ok for HPKP_MIN, practical hints?
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MAX_WAITSOCK=10 # waiting at max 10 seconds for socket reply
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CLIENT_MIN_PFS=5 # number of ciphers needed to run a test for PFS
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DAYS2WARN1=60 # days to warn before cert expires, threshold 1
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DAYS2WARN2=30 # days to warn before cert expires, threshold 2
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# more global vars, here just declared
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ECHO="/usr/bin/printf --" # works under Linux, BSD, MacOS.
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NPN_PROTOs="spdy/4a2,spdy/3,spdy/3.1,spdy/2,spdy/1,http/1.1"
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RUN_DIR=`dirname $0`
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TEMPDIR=""
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TLS_PROTO_OFFERED=""
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SOCKREPLY=""
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HEXC=""
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SNI=""
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IP4=""
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IP6=""
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OSSL_VER="" # openssl version, will be autodetermined
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OSSL_VER_MAJOR=0
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OSSL_VER_MINOR=0
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OSSL_VER_APPENDIX="none"
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NODEIP=""
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IPS=""
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SERVICE="" # is the server running an HTTP server, SMTP, POP or IMAP?
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BLA=""
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# make sure that temporary files are cleaned up after use
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trap "cleanup" QUIT EXIT
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# The various hexdump commands we need to replace xxd (BSD compatability))
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HEXDUMPVIEW=(hexdump -C) # This is used in verbose mode to see what's going on
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HEXDUMP=(hexdump -ve '16/1 "%02x " " \n"') # This is used to analyse the reply
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HEXDUMPPLAIN=(hexdump -ve '1/1 "%.2x"') # Replaces both xxd -p and tr -cd '[:print:]'
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out() {
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$ECHO "$1"
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}
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outln() {
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[[ -z "$1" ]] || $ECHO "$1"
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$ECHO "\n"
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}
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# http://www.tldp.org/HOWTO/Bash-Prompt-HOWTO/x329.html
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#### color print functions
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pr_off() {
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[[ "$COLOR" -ne 0 ]] && out "\033[m\c"
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}
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pr_liteblueln() { pr_liteblue "$1"; outln; }
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pr_liteblue() {
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[[ "$COLOR" -eq 2 ]] && out "\033[0;34m$1 " || out "$1 "
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pr_off
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}
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pr_blueln() { pr_blue "$1"; outln; }
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pr_blue() {
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[[ "$COLOR" -eq 2 ]] && out "\033[1;34m$1 " || out "$1 "
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pr_off
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}
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pr_literedln() { pr_litered "$1"; outln; }
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pr_litered() {
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[[ "$COLOR" -eq 2 ]] && out "\033[0;31m$1 " || pr_bold "$1 "
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pr_off
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}
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pr_redln() { pr_red "$1"; outln; }
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pr_red() {
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[[ "$COLOR" -eq 2 ]] && out "\033[1;31m$1 " || pr_bold "$1 "
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pr_off
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}
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pr_litemagentaln() { pr_litemagenta "$1"; outln; }
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pr_litemagenta() {
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[[ "$COLOR" -eq 2 ]] && out "\033[0;35m$1 " || pr_underline "$1 "
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pr_off
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}
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pr_magentaln() { pr_magenta "$1"; outln; }
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pr_magenta() {
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[[ "$COLOR" -eq 2 ]] && out "\033[1;35m$1 " || pr_underline "$1 "
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pr_off
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}
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pr_litecyanln() { pr_litecyan "$1"; outln; }
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pr_litecyan() {
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[[ "$COLOR" -eq 2 ]] && out "\033[0;36m$1 " || out "$1 "
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pr_off
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}
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pr_cyanln() { pr_cyan "$1"; outln; }
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pr_cyan() {
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[[ "$COLOR" = 2 ]] && out "\033[1;36m$1 " || out "$1 "
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pr_off
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}
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pr_greyln() { pr_grey "$1"; outln; }
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pr_grey() {
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[[ "$COLOR" -eq 2 ]] && out "\033[1;30m$1 " || out "$1 "
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pr_off
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}
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pr_litegreyln() { pr_litegrey "$1"; outln; }
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pr_litegrey() {
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[[ "$COLOR" -eq 2 ]] && out "\033[0;37m$1 " || out "$1 "
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pr_off
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}
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pr_litegreenln() { pr_litegreen "$1"; outln; }
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pr_litegreen() {
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[[ "$COLOR" -eq 2 ]] && out "\033[0;32m$1 " || out "$1 "
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pr_off
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}
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pr_greenln() { pr_green "$1"; outln; }
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pr_green() {
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[[ "$COLOR" -eq 2 ]] && out "\033[1;32m$1 " || out "$1 "
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pr_off
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}
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pr_brownln() { pr_brown "$1"; outln; }
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pr_brown() {
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[[ "$COLOR" -eq 2 ]] && out "\033[0;33m$1 " || out "$1 "
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pr_off
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}
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pr_yellowln() { pr_yellow "$1"; outln; }
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pr_yellow() {
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[[ "$COLOR" -eq 2 ]] && out "\033[1;33m$1 " || out "$1 "
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pr_off
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}
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pr_boldln() { pr_bold "$1" ; outln; }
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pr_bold() { [[ "$COLOR" -ne 0 ]] && out "\033[1m$1" || out "$1" ; pr_off; }
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pr_underline() { [[ "$COLOR" -ne 0 ]] && out "\033[4m$1" || out "$1" ; pr_off; }
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pr_boldandunder() { [[ "$COLOR" -ne 0 ]] && out "\033[1m\033[4m$1" || out "$1" ; pr_off; }
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pr_reverse() { [[ "$COLOR" -ne 0 ]] && out "\033[7m$1" || out "$1"; pr_off; }
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### colorswitcher (see e.g. https://linuxtidbits.wordpress.com/2008/08/11/output-color-on-bash-scripts/
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### http://www.tldp.org/HOWTO/Bash-Prompt-HOWTO/x405.html
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if [[ "$COLOR" -eq 2 ]]; then
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red=$(tput setaf 1)
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green=$(tput setaf 2)
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yellow=$(tput setaf 3)
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blue=$(tput setaf 4)
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off=$(tput sgr0)
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fi
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if [[ "$COLOR" -ge 1 ]]; then
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bold=$(tput bold)
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underline=$(tput sgr 0 1)
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fi
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###### function definitions
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tmpfile_handle() {
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if [[ "$DEBUG" -eq 0 ]] ; then
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rm $TMPFILE
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else
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mv $TMPFILE "$TEMPDIR/$1"
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fi
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}
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# whether it is ok to offer/not to offer enc/cipher/version
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ok(){
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if [ "$2" -eq 1 ] ; then
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case $1 in
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1) pr_redln "offered (NOT ok)" ;; # 1 1
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0) pr_greenln "not offered (OK)" ;; # 0 1
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esac
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else
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case $1 in
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7) pr_brownln "not offered" ;; # 7 0
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6) pr_literedln "offered (NOT ok)" ;; # 6 0
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5) pr_litered "supported but couldn't detect a cipher"; outln "(may need debugging)" ;; # 5 5
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4) pr_litegreenln "offered (OK)" ;; # 4 0
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3) pr_brownln "offered" ;; # 3 0
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2) outln "offered" ;; # 2 0
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1) pr_greenln "offered (OK)" ;; # 1 0
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0) pr_boldln "not offered" ;; # 0 0
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esac
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fi
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return $2
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}
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# ARG1= pid which is in the backgnd and we wait for ($2 seconds)
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wait_kill(){
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pid=$1
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maxsleep=$2
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while true; do
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if ! ps ax | grep -v grep | grep -q $pid; then
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return 0 # didn't reach maxsleep yet
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fi
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sleep 1
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maxsleep=`expr $maxsleep - 1`
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test $maxsleep -eq 0 && break
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done # needs to be killed:
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kill $pid >&2 2>/dev/null
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wait $pid 2>/dev/null
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return 3 # killed
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}
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# in a nutshell: It's HTTP-level compression & an attack which works against any cipher suite and
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# is agnostic to the version of TLS/SSL, more: http://www.breachattack.com/
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# foreign referers are the important thing here!
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breach() {
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pr_bold " BREACH"; out " (CVE-2013-3587) =HTTP Compression "
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url="$1"
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[ -z "$url" ] && url="/"
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if [ $SNEAKY -eq 0 ] ; then
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referer="Referer: http://google.com/" # see https://community.qualys.com/message/20360
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useragent="User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.0)"
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else
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referer="Referer: TLS/SSL-Tester from $SWURL"
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useragent="User-Agent: Mozilla/4.0 (X11; Linux x86_64; rv:42.0) Gecko/19700101 Firefox/42.0"
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fi
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(
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$OPENSSL s_client -quiet -connect $NODEIP:$PORT $SNI << EOF
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GET $url HTTP/1.1
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Host: $NODE
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$useragent
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Accept-Language: en-US,en
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Accept-encoding: gzip,deflate,compress
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$referer
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Connection: close
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EOF
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) &>$HEADERFILE_BREACH &
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pid=$!
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if wait_kill $pid $HEADER_MAXSLEEP; then
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result=`cat $HEADERFILE_BREACH | grep -a '^Content-Encoding' | sed -e 's/^Content-Encoding//' -e 's/://' -e 's/ //g'`
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result=`echo $result | tr -cd '\40-\176'`
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if [ -z $result ]; then
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pr_green "no HTTP compression "
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ret=0
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else
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pr_litered "uses $result compression "
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ret=1
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fi
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# Catch: any URL can be vulnerable. I am testing now only the root. URL!
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outln "(only \"$url\" tested)"
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else
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pr_litemagentaln "failed (HTTP header request stalled)"
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ret=3
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fi
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return $ret
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}
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# determines whether the port has an HTTP service running or not (plain TLS, no STARTTLS)
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runs_HTTP() {
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ret=1
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# SNI is nonsense for !HTTP but fortunately SMTP and friends don't care
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printf "GET / HTTP/1.1\r\nServer: $NODE\r\n\r\n\r\n" | $OPENSSL s_client -quiet -connect $NODE:$PORT $SNI &>$TMPFILE &
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wait_kill $! $HEADER_MAXSLEEP
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grep -q ^HTTP $TMPFILE && SERVICE=HTTP && ret=0
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grep -q SMTP $TMPFILE && SERVICE=SMTP
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grep -q POP $TMPFILE && SERVICE=POP
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grep -q IMAP $TMPFILE && SERVICE=IMAP
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# $TMPFILE contains also a banner which we could use if there's a need for it
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case $SERVICE in
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HTTP)
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;;
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IMAP|POP|SMTP)
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outln " $SERVICE service detected, thus skipping HTTP checks\n" ;;
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*) outln " Couldn't determine what's running on port $PORT, assuming not HTTP\n" ;;
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esac
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tmpfile_handle $FUNCNAME.txt
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return $ret
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}
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# Padding Oracle On Downgraded Legacy Encryption
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poodle() {
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pr_bold " POODLE "; out "(CVE-2014-3566), experimental "
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# w/o downgrade check as of now https://tools.ietf.org/html/draft-ietf-tls-downgrade-scsv-00 | TLS_FALLBACK_SCSV
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$OPENSSL s_client -ssl3 $STARTTLS -connect $NODEIP:$PORT $SNI 2>$TMPFILE >/dev/null </dev/null
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ret=$?
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[ "$VERBERR" -eq 0 ] && cat $TMPFILE | egrep "error|failure" | egrep -v "unable to get local|verify error"
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if [ $ret -eq 0 ]; then
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pr_litered "VULNERABLE"; out ", uses SSLv3 (no TLS_FALLBACK_SCSV mitigation tested)"
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else
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pr_green "not vulnerable (OK)"
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fi
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outln
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tmpfile_handle $FUNCNAME.txt
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return $ret
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}
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#problems not handled: chunked
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http_header() {
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[ -z "$1" ] && url="/" || url="$1"
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if [ $SNEAKY -eq 0 ] ; then
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referer="Referer: http://google.com/"
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useragent="User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.0)"
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else
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referer="Referer: TLS/SSL-Tester from $SWURL"
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useragent="User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:42.0) Gecko/19700101 Firefox/42.0"
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fi
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(
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$OPENSSL s_client -quiet -connect $NODEIP:$PORT $SNI << EOF
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GET $url HTTP/1.1
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Host: $NODE
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Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
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Accept-Language: en-us,en;q=0.7,de-de;q=0.3
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$useragent
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$referer
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Connection: close
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EOF
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) &>$HEADERFILE &
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pid=$!
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if wait_kill $pid $HEADER_MAXSLEEP; then
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sed -e '/^<HTML/,$d' -e '/^<html/,$d' -e '/^<XML /,$d' -e '/<?XML /,$d' \
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-e '/^<xml /,$d' -e '/<?xml /,$d' -e '/^<\!DOCTYPE/,$d' -e '/^<\!doctype/,$d' $HEADERFILE >$HEADERFILE.2
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#### ^^^ Attention: the filtering for the html body only as of now, doesn't work for other content yet
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mv $HEADERFILE.2 $HEADERFILE # sed'ing in place doesn't work with BSD and Linux simultaneously
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ret=0
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else
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pr_litemagentaln "failed (HTTP header request stalled)"
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egrep -awq "301|302|^Location" $HEADERFILE
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if [ $? -eq 0 ]; then
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redir2=`grep -a '^Location' $HEADERFILE | sed 's/Location: //' | tr -d '\r\n'`
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outln " (30x to $redir2, tried this URL?)"
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fi
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[[ $DEBUG -eq 0 ]] && rm $HEADERFILE.2 $HEADERFILE 2>/dev/null
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ret=3
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fi
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return $ret
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}
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includeSubDomains() {
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if grep -aiq includeSubDomains "$1"; then
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pr_litegreen ", includeSubDomains"
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else
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pr_litecyan ", just this domain"
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fi
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}
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hsts() {
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pr_bold " HSTS "
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if [ ! -s $HEADERFILE ] ; then
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http_header "$1" || return 3
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fi
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grep -iaw '^Strict-Transport-Security' $HEADERFILE >$TMPFILE
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if [ $? -eq 0 ]; then
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grep -aciw '^Strict-Transport-Security' $HEADERFILE | egrep -wq "1" || out "(two HSTS header, using 1st one) "
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AGE_SEC=`sed -e 's/[^0-9]*//g' $TMPFILE | head -1`
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AGE_DAYS=`expr $AGE_SEC \/ 86400`
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if [ $AGE_DAYS -gt $HSTS_MIN ]; then
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pr_litegreen "$AGE_DAYS days \c" ; out "($AGE_SEC s)"
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else
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pr_brown "$AGE_DAYS days (<$HSTS_MIN is not good enough)"
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fi
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includeSubDomains "$TMPFILE"
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else
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out "--"
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fi
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outln
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tmpfile_handle $FUNCNAME.txt
|
|
return $?
|
|
}
|
|
|
|
hpkp() {
|
|
pr_bold " HPKP "
|
|
if [ ! -s $HEADERFILE ] ; then
|
|
http_header "$1" || return 3
|
|
fi
|
|
egrep -aiw '^Public-Key-Pins|Public-Key-Pins-Report-Only' $HEADERFILE >$TMPFILE
|
|
if [ $? -eq 0 ]; then
|
|
egrep -aciw '^Public-Key-Pins|Public-Key-Pins-Report-Only' $HEADERFILE | egrep -wq "1" || out "(two HPKP header, using 1st one) "
|
|
AGE_SEC=`sed -e 's/\r//g' -e 's/^.*max-age=//' -e 's/;.*//' $TMPFILE`
|
|
AGE_DAYS=`expr $AGE_SEC \/ 86400`
|
|
if [ $AGE_DAYS -ge $HPKP_MIN ]; then
|
|
pr_litegreen "$AGE_DAYS days \c" ; out "($AGE_SEC s)"
|
|
else
|
|
pr_brown "$AGE_DAYS days (<$HPKP_MIN is not good enough)"
|
|
fi
|
|
includeSubDomains "$TMPFILE"
|
|
out ", fingerprints not checked"
|
|
else
|
|
out "--"
|
|
fi
|
|
outln
|
|
|
|
tmpfile_handle $FUNCNAME.txt
|
|
return $?
|
|
}
|
|
|
|
emphasize_numbers_in_headers(){
|
|
# see http://www.grymoire.com/Unix/Sed.html#uh-3
|
|
# outln "$1" | sed "s/[0-9]*/$yellow&$off/g"
|
|
outln "$1" | sed "s/\([0-9]\)/$yellow\1$off/g"
|
|
}
|
|
|
|
|
|
serverbanner() {
|
|
pr_bold " Server "
|
|
if [ ! -s $HEADERFILE ] ; then
|
|
http_header "$1" || return 3
|
|
fi
|
|
grep -ai '^Server' $HEADERFILE >$TMPFILE
|
|
if [ $? -eq 0 ]; then
|
|
serverbanner=`cat $TMPFILE | sed -e 's/^Server: //' -e 's/^server: //'`
|
|
if [ x"$serverbanner" == "x\n" -o x"$serverbanner" == "x\n\r" -o x"$serverbanner" == "x" ]; then
|
|
outln "banner exists but empty string"
|
|
else
|
|
emphasize_numbers_in_headers "$serverbanner"
|
|
fi
|
|
else
|
|
outln "no HTTP header, interesting!"
|
|
fi
|
|
|
|
tmpfile_handle $FUNCNAME.txt
|
|
return $?
|
|
}
|
|
|
|
applicationbanner() {
|
|
pr_bold " Application "
|
|
if [ ! -s $HEADERFILE ] ; then
|
|
http_header "$1" || return 3
|
|
fi
|
|
# examples: dev.testssl.sh, php.net, asp.net , www.regonline.com
|
|
egrep -ai '^X-Powered-By|^X-AspNet-Version|^X-Runtime|^X-Version' $HEADERFILE >$TMPFILE
|
|
if [ $? -eq 0 ]; then
|
|
#cat $TMPFILE | sed 's/^.*:/:/' | sed -e :a -e '$!N;s/\n:/ \n\ +/;ta' -e 'P;D' | sed 's/://g'
|
|
#sed 's/^/ /g' $TMPFILE | tr -t '\n\r' ' ' | sed "s/\([0-9]\)/$pr_red\1$off/g"
|
|
emphasize_numbers_in_headers "$(sed 's/^/ /g' $TMPFILE | tr -t '\n\r' ' ')"
|
|
#i=0
|
|
#cat $TMPFILE | sed 's/^/ /' | while read line; do
|
|
# out "$line"
|
|
# if [[ $i -eq 0 ]] ; then
|
|
# out " "
|
|
# i=1
|
|
# fi
|
|
#done
|
|
else
|
|
outln " (no banner at \"$url\")"
|
|
fi
|
|
|
|
tmpfile_handle $FUNCNAME.txt
|
|
return $?
|
|
}
|
|
|
|
cookieflags() { # ARG1: Path, ARG2: path
|
|
pr_bold " Cookie(s) "
|
|
if [ ! -s $HEADERFILE ] ; then
|
|
http_header "$1" || return 3
|
|
fi
|
|
grep -ai '^Set-Cookie' $HEADERFILE >$TMPFILE
|
|
if [ $? -eq 0 ]; then
|
|
nr_cookies=`cat $TMPFILE | wc -l`
|
|
out "$nr_cookies issued: "
|
|
if [ $nr_cookies -gt 1 ] ; then
|
|
negative_word="NONE"
|
|
else
|
|
negative_word="NOT"
|
|
fi
|
|
nr_secure=`grep -iac secure $TMPFILE`
|
|
case $nr_secure in
|
|
0) out "$negative_word secure, " ;;
|
|
[123456789]) pr_litegreen "$nr_secure/$nr_cookies"; out "secure, ";;
|
|
esac
|
|
nr_httponly=`grep -cai httponly $TMPFILE`
|
|
case $nr_httponly in
|
|
0) out "$negative_word HttpOnly" ;;
|
|
[123456789]) pr_litegreen "$nr_httponly/$nr_cookies"; out "HttpOnly" ;;
|
|
esac
|
|
else
|
|
out "(none issued at \"$url\")"
|
|
fi
|
|
outln
|
|
|
|
tmpfile_handle $FUNCNAME.txt
|
|
return 0
|
|
}
|
|
#FIXME: Access-Control-Allow-Origin, CSP, Upgrade, X-Frame-Options, X-XSS-Protection, X-Content-Type-Options
|
|
# https://en.wikipedia.org/wiki/List_of_HTTP_header_fields
|
|
|
|
|
|
# #1: string with 2 opensssl codes, HEXC= same in NSS/ssllab terminology
|
|
normalize_ciphercode() {
|
|
part1=`echo "$1" | awk -F',' '{ print $1 }'`
|
|
part2=`echo "$1" | awk -F',' '{ print $2 }'`
|
|
part3=`echo "$1" | awk -F',' '{ print $3 }'`
|
|
if [ "$part1" == "0x00" ] ; then # leading 0x00
|
|
HEXC=$part2
|
|
else
|
|
part2=`echo $part2 | sed 's/0x//g'`
|
|
if [ -n "$part3" ] ; then # a SSLv2 cipher has three parts
|
|
part3=`echo $part3 | sed 's/0x//g'`
|
|
fi
|
|
HEXC="$part1$part2$part3"
|
|
fi
|
|
HEXC=`echo $HEXC | tr 'A-Z' 'a-z' | sed 's/0x/x/'` #tolower + strip leading 0
|
|
return 0
|
|
}
|
|
|
|
prettyprint_local() {
|
|
pr_blue "--> Displaying all local ciphers";
|
|
if [ ! -z "$1" ]; then
|
|
pr_blue "matching word pattern "\"$1\"" (ignore case)";
|
|
fi
|
|
outln "\n"
|
|
|
|
neat_header
|
|
|
|
if [ -z "$1" ]; then
|
|
$OPENSSL ciphers -V 'ALL:COMPLEMENTOFALL:@STRENGTH' | while read hexcode dash ciph sslvers kx auth enc mac export ; do
|
|
normalize_ciphercode $hexcode
|
|
neat_list $HEXC $ciph $kx $enc | strings
|
|
done
|
|
else
|
|
for arg in `echo $@ | sed 's/,/ /g'`; do
|
|
$OPENSSL ciphers -V 'ALL:COMPLEMENTOFALL:@STRENGTH' | while read hexcode dash ciph sslvers kx auth enc mac export ; do
|
|
normalize_ciphercode $hexcode
|
|
neat_list $HEXC $ciph $kx $enc | strings | grep -wai "$arg"
|
|
done
|
|
done
|
|
fi
|
|
outln
|
|
return 0
|
|
}
|
|
|
|
|
|
# list ciphers (and makes sure you have them locally configured)
|
|
# arg[1]: cipher list (or anything else)
|
|
listciphers() {
|
|
$OPENSSL ciphers $1 &>$TMPFILE
|
|
ret=$?
|
|
[[ $LOCERR -eq 1 ]] && cat $TMPFILE
|
|
|
|
tmpfile_handle $FUNCNAME.txt
|
|
return $ret
|
|
}
|
|
|
|
|
|
# argv[1]: cipher list to test
|
|
# argv[2]: string on console
|
|
# argv[3]: ok to offer? 0: yes, 1: no
|
|
std_cipherlists() {
|
|
out "$2 ";
|
|
if listciphers $1; then # is that locally available??
|
|
[ $SHOW_LOC_CIPH = "1" ] && out "local ciphers are: " && cat $TMPFILE | sed 's/:/, /g'
|
|
$OPENSSL s_client -cipher "$1" $STARTTLS -connect $NODEIP:$PORT $SNI 2>$TMPFILE >/dev/null </dev/null
|
|
ret=$?
|
|
[[ $DEBUG -ge 2 ]] && cat $TMPFILE
|
|
case $3 in
|
|
0) # ok to offer
|
|
if [[ $ret -eq 0 ]]; then # was offered
|
|
ok 1 0 # pr_green
|
|
else
|
|
ok 0 0 # black
|
|
fi ;;
|
|
2) # not really bad
|
|
if [[ $ret -eq 0 ]]; then
|
|
ok 2 0 # offered in normal
|
|
else
|
|
ok 2 0 # not offered also in normal
|
|
fi;;
|
|
*) # the ugly rest
|
|
if [[ $ret -eq 0 ]]; then
|
|
ok 1 1 # was offered! --> pr_red
|
|
else
|
|
#ok 0 0 # was not offered, that's ok
|
|
ok 0 1 # was not offered --> pr_green
|
|
fi ;;
|
|
esac
|
|
tmpfile_handle $FUNCNAME.txt
|
|
else
|
|
singlespaces=`echo "$2" | sed -e 's/ \+/ /g' -e 's/^ //' -e 's/ $//g' -e 's/ //g'`
|
|
pr_magentaln "Local problem: No $singlespaces configured in $OPENSSL"
|
|
fi
|
|
# we need lf in those cases:
|
|
[[ $LOCERR -eq 1 ]] && echo
|
|
[[ $DEBUG -ge 2 ]] && echo
|
|
}
|
|
|
|
|
|
# sockets inspired by http://blog.chris007.de/?p=238
|
|
# ARG1: hexbyte with a leading comma (!!), seperated by commas
|
|
# ARG2: sleep
|
|
socksend() {
|
|
# the following works under BSD and Linux, which is quite tricky. So don't mess with it unless you're really sure what you do
|
|
data=`echo "$1" | sed -e 's/# .*$//g' -e 's/ //g' | sed -E 's/^[[:space:]]+//; s/[[:space:]]+$//; /^$/d' | sed 's/,/\\\/g' | tr -d '\n'`
|
|
[[ $DEBUG -ge 4 ]] && echo "\"$data\""
|
|
printf -- "$data" >&5 2>/dev/null &
|
|
sleep $2
|
|
}
|
|
|
|
|
|
sockread() {
|
|
[ "x$2" = "x" ] && maxsleep=$MAX_WAITSOCK || maxsleep=$2
|
|
ret=0
|
|
|
|
ddreply=`mktemp /tmp/ddreply.XXXXXX` || exit 7
|
|
dd bs=$1 of=$ddreply count=1 <&5 2>/dev/null &
|
|
pid=$!
|
|
|
|
while true; do
|
|
if ! ps ax | grep -v grep | grep -q $pid; then
|
|
break # didn't reach maxsleep yet
|
|
kill $pid >&2 2>/dev/null
|
|
fi
|
|
sleep 1
|
|
maxsleep=`expr $maxsleep - 1`
|
|
test $maxsleep -eq 0 && break
|
|
done
|
|
#FIXME: cleanup, we have extra function for this now
|
|
|
|
if ps ax | grep -v grep | grep -q $pid; then
|
|
# time's up and dd is still alive --> timeout
|
|
kill $pid
|
|
wait $pid 2>/dev/null
|
|
ret=3 # means killed
|
|
fi
|
|
SOCKREPLY=`cat $ddreply`
|
|
rm $ddreply
|
|
|
|
return $ret
|
|
}
|
|
|
|
|
|
show_rfc_style(){
|
|
[ ! -r "$MAP_RFC_FNAME" ] && return 1
|
|
RFCname=`grep -iw $1 "$MAP_RFC_FNAME" | sed -e 's/^.*TLS/TLS/' -e 's/^.*SSL/SSL/'`
|
|
[[ -n "$RFCname" ]] && out "$RFCname"
|
|
return 0
|
|
}
|
|
|
|
neat_header(){
|
|
outln "Hexcode Cipher Suite Name (OpenSSL) KeyExch. Encryption Bits${MAP_RFC_FNAME:+ Cipher Suite Name (RFC)}"
|
|
outln "%s-------------------------------------------------------------------------${MAP_RFC_FNAME:+----------------------------------------------}"
|
|
}
|
|
|
|
neat_list(){
|
|
kx=`echo $3 | sed 's/Kx=//g'`
|
|
enc=`echo $4 | sed 's/Enc=//g'`
|
|
strength=`echo $enc | sed -e 's/.*(//' -e 's/)//'` # strength = encryption bits
|
|
strength=`echo $strength | sed -e 's/ChaCha20-Poly1305/ly1305/g'` # workaround for empty bits ChaCha20-Poly1305
|
|
enc=`echo $enc | sed -e 's/(.*)//g' -e 's/ChaCha20-Poly1305/ChaCha20-Po/g'` # workaround for empty bits ChaCha20-Poly1305
|
|
echo "$export" | grep -iq export && strength="$strength,export"
|
|
printf -- " %-7s %-30s %-10s %-11s%-11s${MAP_RFC_FNAME:+ %-48s}${SHOW_EACH_C:+ }" "$1" "$2" "$kx" "$enc" "$strength" "$(show_rfc_style $HEXC)"
|
|
}
|
|
|
|
test_just_one(){
|
|
pr_blue "--> Testing single cipher with word pattern "\"$1\"" (ignore case)"; outln "\n"
|
|
neat_header
|
|
for arg in `echo $@ | sed 's/,/ /g'`; do
|
|
# 1st check whether openssl has cipher or not
|
|
$OPENSSL ciphers -V 'ALL:COMPLEMENTOFALL:@STRENGTH' | while read hexcode dash ciph sslvers kx auth enc mac export ; do
|
|
normalize_ciphercode $hexcode
|
|
neat_list $HEXC $ciph $kx $enc | strings | grep -qwai "$arg"
|
|
if [ $? -eq 0 ]; then
|
|
$OPENSSL s_client -cipher $ciph $STARTTLS -connect $NODEIP:$PORT $SNI &>$TMPFILE </dev/null
|
|
ret=$?
|
|
neat_list $HEXC $ciph $kx $enc
|
|
|
|
if [ $ret -eq 0 ]; then
|
|
pr_cyan " available"
|
|
else
|
|
out " not a/v"
|
|
fi
|
|
outln
|
|
fi
|
|
done
|
|
done
|
|
outln
|
|
|
|
tmpfile_handle $FUNCNAME.txt
|
|
return 0
|
|
}
|
|
|
|
|
|
# test for all ciphers locally configured (w/o distinguishing whether they are good or bad
|
|
allciphers(){
|
|
nr_ciphers=`$OPENSSL ciphers 'ALL:COMPLEMENTOFALL:@STRENGTH' | sed 's/:/ /g' | wc -w`
|
|
pr_blue "--> Testing all locally available $nr_ciphers ciphers against the server"; outln "\n"
|
|
neat_header
|
|
|
|
$OPENSSL ciphers -V 'ALL:COMPLEMENTOFALL:@STRENGTH' | while read hexcode n ciph sslvers kx auth enc mac export; do
|
|
# FIXME: e.g. OpenSSL < 1.0 doesn't understand "-V" --> we can't do anything about it!
|
|
$OPENSSL s_client -cipher $ciph $STARTTLS -connect $NODEIP:$PORT $SNI &>$TMPFILE </dev/null
|
|
ret=$?
|
|
if [ $ret -ne 0 ] && [ "$SHOW_EACH_C" -eq 0 ]; then
|
|
continue # no successful connect AND not verbose displaying each cipher
|
|
fi
|
|
normalize_ciphercode $hexcode
|
|
neat_list $HEXC $ciph $kx $enc
|
|
if [ "$SHOW_EACH_C" -ne 0 ]; then
|
|
if [ $ret -eq 0 ]; then
|
|
pr_cyan " available"
|
|
else
|
|
out " not a/v"
|
|
fi
|
|
fi
|
|
outln
|
|
tmpfile_handle $FUNCNAME.txt
|
|
done
|
|
return 0
|
|
}
|
|
|
|
# test for all ciphers per protocol locally configured (w/o distinguishing whether they are good or bad
|
|
cipher_per_proto(){
|
|
pr_blue "--> Testing all locally available ciphers per protocol against the server"; outln "\n"
|
|
neat_header
|
|
outln " -ssl2 SSLv2\n -ssl3 SSLv3\n -tls1 TLSv1\n -tls1_1 TLSv1.1\n -tls1_2 TLSv1.2"| while read proto prtext; do
|
|
locally_supported "$proto" "$prtext" || continue
|
|
outln
|
|
$OPENSSL ciphers $proto -V 'ALL:COMPLEMENTOFALL:@STRENGTH' | while read hexcode n ciph sslvers kx auth enc mac export; do
|
|
$OPENSSL s_client -cipher $ciph $proto $STARTTLS -connect $NODEIP:$PORT $SNI &>$TMPFILE </dev/null
|
|
ret=$?
|
|
if [ $ret -ne 0 ] && [ "$SHOW_EACH_C" -eq 0 ]; then
|
|
continue # no successful connect AND not verbose displaying each cipher
|
|
fi
|
|
normalize_ciphercode $hexcode
|
|
neat_list $HEXC $ciph $kx $enc
|
|
if [ "$SHOW_EACH_C" -ne 0 ]; then
|
|
if [ $ret -eq 0 ]; then
|
|
pr_cyan " available"
|
|
else
|
|
out " not a/v"
|
|
fi
|
|
fi
|
|
outln
|
|
tmpfile_handle $FUNCNAME.txt
|
|
done
|
|
done
|
|
|
|
return 0
|
|
}
|
|
|
|
locally_supported() {
|
|
out "$2 "
|
|
$OPENSSL s_client "$1" 2>&1 | grep -q "unknown option"
|
|
if [ $? -eq 0 ]; then
|
|
pr_magentaln "Local problem: $OPENSSL doesn't support \"s_client $1\""
|
|
ret=7
|
|
else
|
|
ret=0
|
|
fi
|
|
|
|
return $ret
|
|
|
|
}
|
|
|
|
testversion() {
|
|
local sni=$SNI
|
|
[ "x$1" = "x-ssl2" ] && sni="" # newer openssl throw an error if SNI with SSLv2
|
|
|
|
$OPENSSL s_client -state $1 $STARTTLS -connect $NODEIP:$PORT $sni &>$TMPFILE </dev/null
|
|
ret=$?
|
|
[ "$VERBERR" -eq 0 ] && cat $TMPFILE | egrep "error|failure" | egrep -v "unable to get local|verify error"
|
|
|
|
if grep -q "no cipher list" $TMPFILE ; then
|
|
ret=5
|
|
fi
|
|
|
|
tmpfile_handle $FUNCNAME.txt
|
|
return $ret
|
|
}
|
|
|
|
testprotohelper() {
|
|
if locally_supported "$1" "$2" ; then
|
|
testversion "$1" "$2"
|
|
return $?
|
|
else
|
|
return 7
|
|
fi
|
|
}
|
|
|
|
|
|
runprotocols() {
|
|
pr_blue "--> Testing Protocols"; outln "\n"
|
|
if [ $SSL_NATIVE -eq 1 ] || [ -n "$STARTTLS" ]; then
|
|
testprotohelper "-ssl2" " SSLv2 "
|
|
case $? in
|
|
0) ok 1 1 ;; # pr_red
|
|
5) ok 5 5 ;; # protocol ok, but no cipher
|
|
1) ok 0 1 ;; # pr_green "not offered (ok)"
|
|
7) ;; # no local support
|
|
esac
|
|
else
|
|
sslv2_sockets
|
|
fi
|
|
|
|
testprotohelper "-ssl3" " SSLv3 "
|
|
case $? in
|
|
0) ok 6 0 ;; # poodle hack"
|
|
1) ok 0 1 ;; # pr_green "not offered (ok)"
|
|
5) ok 5 5 ;; # protocol ok, but no cipher
|
|
7) ;; # no local support
|
|
esac
|
|
|
|
|
|
testprotohelper "-tls1" " TLSv1 "
|
|
case $? in
|
|
0) ok 2 0 ;; # no GCM, thus only normal print
|
|
1) ok 0 0 ;;
|
|
5) ok 5 5 ;; # protocol ok, but no cipher
|
|
7) ;; # no local support
|
|
esac
|
|
|
|
testprotohelper "-tls1_1" " TLSv1.1 "
|
|
case $? in
|
|
0) ok 2 0 ;; # normal print
|
|
1) ok 7 0 ;; # no GCM, penalty
|
|
5) ok 5 5 ;; # protocol ok, but no cipher
|
|
7) ;; # no local support
|
|
esac
|
|
|
|
testprotohelper "-tls1_2" " TLSv1.2 "
|
|
case $? in
|
|
0) ok 1 0 ;;
|
|
1) ok 7 0 ;; # no GCM, penalty
|
|
5) ok 5 5 ;; # protocol ok, but no cipher
|
|
7) ;; # no local support
|
|
esac
|
|
|
|
return 0
|
|
}
|
|
|
|
run_std_cipherlists() {
|
|
outln
|
|
pr_blue "--> Testing standard cipher lists"; outln "\n"
|
|
# see man ciphers
|
|
std_cipherlists NULL:eNULL " Null Cipher " 1
|
|
std_cipherlists aNULL " Anonymous NULL Cipher " 1
|
|
std_cipherlists ADH " Anonymous DH Cipher " 1
|
|
std_cipherlists EXPORT40 " 40 Bit encryption " 1
|
|
std_cipherlists EXPORT56 " 56 Bit encryption " 1
|
|
std_cipherlists EXPORT " Export Cipher (general) " 1
|
|
std_cipherlists LOW " Low (<=64 Bit) " 1
|
|
std_cipherlists DES " DES Cipher " 1
|
|
std_cipherlists 3DES " Triple DES Cipher " 2
|
|
std_cipherlists "MEDIUM:!NULL:!aNULL:!SSLv2" " Medium grade encryption " 2
|
|
std_cipherlists "HIGH:!NULL:!aNULL" " High grade encryption " 0
|
|
return 0
|
|
}
|
|
|
|
openssl_error() {
|
|
pr_magenta "$OPENSSL returned an error. This shouldn't happen. "
|
|
outln "continuing anyway"
|
|
return 0
|
|
}
|
|
|
|
server_preference() {
|
|
list1="DES-CBC3-SHA:RC4-MD5:DES-CBC-SHA:RC4-SHA:AES128-SHA:AES128-SHA:AES256-SHA:DHE-RSA-AES128-SHA:DHE-RSA-AES256-SHA:DHE-DSS-AES128-SHA:DHE-DSS-AES128-SHA:DHE-DSS-AES256-SHA:ECDH-RSA-DES-CBC3-SHA:ECDH-RSA-AES128-SHA:ECDH-RSA-AES256-SHA:ECDHE-RSA-AES256-GCM-SHA384:DHE-RSA-AES128-SHA256:DHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES256-SHA384:DHE-DSS-AES256-GCM-SHA384"
|
|
outln;
|
|
pr_blue "--> Testing server preferences"; outln "\n"
|
|
|
|
$OPENSSL s_client $STARTTLS -cipher $list1 -connect $NODEIP:$PORT $SNI </dev/null 2>/dev/null >$TMPFILE
|
|
if [ $? -ne 0 ]; then
|
|
openssl_error
|
|
ret=6
|
|
else
|
|
cipher1=`grep -w Cipher $TMPFILE | egrep -vw "New|is" | sed -e 's/^ \+Cipher \+://' -e 's/ //g'`
|
|
list2=`echo $list1 | tr ':' '\n' | sort -r | tr '\n' ':'` # pr_reverse the list
|
|
$OPENSSL s_client $STARTTLS -cipher $list2 -connect $NODEIP:$PORT $SNI </dev/null 2>/dev/null >$TMPFILE
|
|
cipher2=`grep -w Cipher $TMPFILE | egrep -vw "New|is" | sed -e 's/^ \+Cipher \+://' -e 's/ //g'`
|
|
|
|
out " Has server cipher order? "
|
|
if [[ "$cipher1" != "$cipher2" ]]; then
|
|
pr_brown "nope (NOT ok)"
|
|
remark4default_cipher=" (limited sense as client will pick)"
|
|
else
|
|
pr_green "yes (OK)"
|
|
remark4default_cipher=""
|
|
fi
|
|
[[ $DEBUG -ge 2 ]] && out " $cipher1 | $cipher2"
|
|
outln
|
|
|
|
$OPENSSL s_client $STARTTLS -connect $NODEIP:$PORT $SNI </dev/null 2>/dev/null >$TMPFILE
|
|
out " Negotiated protocol "
|
|
default_proto=`grep -w "Protocol" $TMPFILE | sed -e 's/^.*Protocol.*://' -e 's/ //g'`
|
|
case "$default_proto" in
|
|
*TLSv1.2) pr_greenln $default_proto ;;
|
|
*TLSv1.1) pr_litegreenln $default_proto ;;
|
|
*TLSv1) outln $default_proto ;;
|
|
*SSLv2) pr_redln $default_proto ;;
|
|
*SSLv3) pr_redln $default_proto ;;
|
|
*) outln "FIXME: $default_proto" ;;
|
|
esac
|
|
|
|
out " Negotiated cipher "
|
|
default_cipher=`grep -w "Cipher" $TMPFILE | egrep -vw "New|is" | sed -e 's/^.*Cipher.*://' -e 's/ //g'`
|
|
case "$default_cipher" in
|
|
*NULL*|*EXP*) pr_red "$default_cipher" ;;
|
|
*RC4*) pr_litered "$default_cipher" ;;
|
|
*CBC*) pr_brown "$default_cipher" ;; #FIXME BEAST: We miss some CBC ciphers here, need to work w/ a list
|
|
*GCM*) pr_green "$default_cipher" ;; # best ones
|
|
*CHACHA20*) pr_green "$default_cipher" ;; # best ones
|
|
ECDHE*AES*) pr_yellow "$default_cipher" ;; # it's CBC. --> lucky13
|
|
*) out "$default_cipher" ;;
|
|
esac
|
|
outln "$remark4default_cipher"
|
|
|
|
out " Negotiated cipher per proto $remark4default_cipher"
|
|
i=1
|
|
for p in sslv2 ssl3 tls1 tls1_1 tls1_2; do
|
|
# proto-check b4!
|
|
$OPENSSL s_client $STARTTLS -"$p" -connect $NODEIP:$PORT $SNI </dev/null 2>/dev/null >$TMPFILE
|
|
if [ $ret -eq 0 ]; then
|
|
proto[i]=`grep -w "Protocol" $TMPFILE | sed -e 's/^ \+Protocol \+://' -e 's/ //g'`
|
|
cipher[i]=`grep -w "Cipher" $TMPFILE | egrep -vw "New|is" | sed -e 's/^ \+Cipher \+://' -e 's/ //g'`
|
|
[[ ${cipher[i]} == "0000" ]] && cipher[i]="" # Hack!
|
|
[[ $DEBUG -ge 2 ]] && outln "Default cipher for ${proto[i]}: ${cipher[i]}"
|
|
else
|
|
proto[i]=""
|
|
cipher[i]=""
|
|
fi
|
|
i=`expr $i + 1`
|
|
done
|
|
|
|
if spdy_pre ; then # is NPN/SPDY supported and is this no STARTTLS?
|
|
$OPENSSL s_client -host $NODE -port $PORT -nextprotoneg "$NPN_PROTOs" </dev/null 2>/dev/null >$TMPFILE
|
|
if [ $? -eq 0 ]; then
|
|
proto[i]=`grep -aw "Next protocol" $TMPFILE | sed -e 's/^Next protocol://' -e 's/(.)//' -e 's/ //g'`
|
|
if [ -z "${proto[i]}" ]; then
|
|
cipher[i]=""
|
|
else
|
|
cipher[i]=`grep -aw "Cipher" $TMPFILE | egrep -vw "New|is" | sed -e 's/^ \+Cipher \+://' -e 's/ //g'`
|
|
[[ $DEBUG -ge 2 ]] && outln "Default cipher for ${proto[i]}: ${cipher[i]}"
|
|
fi
|
|
fi
|
|
fi
|
|
|
|
for i in 1 2 3 4 5 6; do
|
|
if [[ -n "${cipher[i]}" ]]; then # cipher nicht leer
|
|
if [[ -z "${cipher[i-1]}" ]]; then # der davor leer
|
|
outln
|
|
printf -- " %-30s %s" "${cipher[i]}:" "${proto[i]}" # beides ausgeben
|
|
else # davor nihct leer
|
|
if [[ "${cipher[i-1]}" == "${cipher[i]}" ]]; then # und bei vorigem Protokoll selber cipher
|
|
out ", ${proto[i]}" # selber Cipher --> Nur Protokoll dahinter
|
|
else
|
|
outln
|
|
printf -- " %-30s %s" "${cipher[i]}:" "${proto[i]}" # beides ausgeben
|
|
fi
|
|
fi
|
|
fi
|
|
done
|
|
fi
|
|
outln
|
|
|
|
tmpfile_handle $FUNCNAME.txt
|
|
return 0
|
|
}
|
|
|
|
|
|
server_defaults() {
|
|
outln
|
|
pr_blue "--> Testing server defaults (Server Hello)"; outln "\n"
|
|
localtime=`date "+%s"`
|
|
|
|
# throwing every cipher/protocol at the server and displaying its pick
|
|
$OPENSSL s_client $STARTTLS -connect $NODEIP:$PORT $SNI -tlsextdebug -status </dev/null 2>/dev/null >$TMPFILE
|
|
ret=$?
|
|
$OPENSSL s_client $STARTTLS -connect $NODEIP:$PORT $SNI 2>/dev/null </dev/null | awk '/-----BEGIN/,/-----END/ { print $0 }' >$HOSTCERT
|
|
if [ $? -ne 0 ] || [ $ret -ne 0 ]; then
|
|
openssl_error
|
|
ret=6
|
|
else
|
|
out " TLS server extensions "
|
|
extensions=`grep -w "^TLS server extension" $TMPFILE | sed -e 's/^TLS server extension \"//' -e 's/\".*$/,/g'`
|
|
if [ -z "$extensions" ]; then
|
|
outln "(none)"
|
|
else
|
|
echo $extensions | sed 's/,$//' # remove last comma
|
|
fi
|
|
|
|
out " Session Tickets RFC 5077 "
|
|
sessticket_str=`grep -w "session ticket" $TMPFILE | grep lifetime`
|
|
if [ -z "$sessticket_str" ]; then
|
|
outln "(none)"
|
|
else
|
|
lifetime=`echo $sessticket_str | grep lifetime | sed 's/[A-Za-z:() ]//g'`
|
|
unit=`echo $sessticket_str | grep lifetime | sed -e 's/^.*'"$lifetime"'//' -e 's/[ ()]//g'`
|
|
outln "$lifetime $unit"
|
|
fi
|
|
|
|
out " Server key size "
|
|
keysize=`grep -w "^Server public key is" $TMPFILE | sed -e 's/^Server public key is //'`
|
|
if [ -z "$keysize" ]; then
|
|
outln "(couldn't determine)"
|
|
else
|
|
case "$keysize" in
|
|
1024*) pr_brownln "$keysize" ;;
|
|
2048*) outln "$keysize" ;;
|
|
4096*) pr_litegreenln "$keysize" ;;
|
|
*) outln "$keysize" ;;
|
|
esac
|
|
fi
|
|
# google seems to have EC keys which displays as 256 Bit
|
|
|
|
out " Signature Algorithm "
|
|
algo=`$OPENSSL x509 -in $HOSTCERT -noout -text | grep "Signature Algorithm" | sed 's/^.*Signature Algorithm: //' | sort -u `
|
|
case $algo in
|
|
sha1WithRSAEncryption) pr_brownln "SHA1withRSA" ;;
|
|
sha256WithRSAEncryption) pr_litegreenln "SHA256withRSA" ;;
|
|
sha512WithRSAEncryption) pr_litegreenln "SHA512withRSA" ;;
|
|
md5*) pr_redln "MD5" ;;
|
|
*) outln "$algo" ;;
|
|
esac
|
|
# old, but interesting: https://blog.hboeck.de/archives/754-Playing-with-the-EFF-SSL-Observatory.html
|
|
|
|
out " Fingerprint / Serial "
|
|
outln "$($OPENSSL x509 -noout -in $HOSTCERT -fingerprint | sed 's/Fingerprint=//' ) / $($OPENSSL x509 -noout -in $HOSTCERT -serial | sed 's/serial=//')"
|
|
|
|
out " Common Name (CN) "
|
|
CN=`$OPENSSL x509 -in $HOSTCERT -noout -subject | sed 's/subject= //' | sed -e 's/^.*CN=//' -e 's/\/emailAdd.*//'`
|
|
out "$CN"
|
|
|
|
CN_nosni=`$OPENSSL s_client $STARTTLS -connect $NODEIP:$PORT 2>/dev/null </dev/null | awk '/-----BEGIN/,/-----END/ { print $0 }' | \
|
|
$OPENSSL x509 -noout -subject | sed 's/subject= //' | sed -e 's/^.*CN=//' -e 's/\/emailAdd.*//'`
|
|
[[ $DEBUG -ge 2 ]] && out "$NODE | $CN | $CN_nosni"
|
|
if [[ $NODE == $CN_nosni ]]; then
|
|
outln " (works w/o SNI)"
|
|
else
|
|
outln " (CN response to request w/o SNI: '$CN_nosni')"
|
|
fi
|
|
|
|
|
|
SAN=`$OPENSSL x509 -in $HOSTCERT -noout -text | grep -A3 "Subject Alternative Name" | grep "DNS:" | \
|
|
sed -e 's/DNS://g' -e 's/ //g' -e 's/,/\n/g' -e 's/othername:<unsupported>//g'`
|
|
# ^^^ CACert
|
|
[ x"$SAN" != "x" ] && SAN=`echo "$SAN" | sed -e ':a' -e 'N' -e '$!ba' -e 's/\n/ /g'` && outln " subjectAltName (SAN) $SAN"
|
|
# replace line feed by " "
|
|
|
|
out " Issuer "
|
|
issuer=`$OPENSSL x509 -in $HOSTCERT -noout -issuer | sed -e 's/^.*CN=//g' -e 's/\/.*$//g'`
|
|
issuer_o=`$OPENSSL x509 -in $HOSTCERT -noout -issuer | sed 's/^.*O=//g' | sed 's/\/.*$//g'`
|
|
if $OPENSSL x509 -in $HOSTCERT -noout -issuer | grep -q 'C=' ; then
|
|
issuer_c=`$OPENSSL x509 -in $HOSTCERT -noout -issuer | sed 's/^.*C=//g' | sed 's/\/.*$//g'`
|
|
else
|
|
issuer_c="" # CACert would have 'issuer= ' here otherwise
|
|
fi
|
|
if [ "$issuer_o" == "issuer=" ] || [ "$issuer" == "$CN" ] ; then
|
|
pr_redln "selfsigned (not OK)"
|
|
else
|
|
[ "$issuer_c" == "" ] && \
|
|
outln "$issuer ('$issuer_o')" || \
|
|
outln "$issuer ('$issuer_o' from '$issuer_c')"
|
|
fi
|
|
|
|
out " Certificate Expiration "
|
|
expire=`$OPENSSL x509 -in $HOSTCERT -checkend 0`
|
|
if ! echo $expire | grep -qw not; then
|
|
pr_red "expired!"
|
|
else
|
|
SECS2WARN=`expr 24 \* 60 \* 60 \* $DAYS2WARN2` # low threshold first
|
|
expire=`$OPENSSL x509 -in $HOSTCERT -checkend $SECS2WARN`
|
|
if echo "$expire" | grep -qw not; then
|
|
SECS2WARN=`expr 24 \* 60 \* 60 \* $DAYS2WARN2`
|
|
expire=`$OPENSSL x509 -in $HOSTCERT -checkend $SECS2WARN`
|
|
if echo "$expire" | grep -qw not; then
|
|
pr_litegreen ">= $DAYS2WARN1 days"
|
|
else
|
|
pr_brown "expires < $DAYS2WARN1 days"
|
|
fi
|
|
else
|
|
pr_litered "expires < $DAYS2WARN2 days!"
|
|
fi
|
|
fi
|
|
enddate=`date --date="$($OPENSSL x509 -in $HOSTCERT -noout -enddate | cut -d= -f 2)" +"%F %H:%M %z"`
|
|
startdate=`date --date="$($OPENSSL x509 -in $HOSTCERT -noout -startdate | cut -d= -f 2)" +"%F %H:%M"`
|
|
outln " ($startdate --> $enddate)"
|
|
|
|
|
|
out " Certificate Revocation List "
|
|
crl=`$OPENSSL x509 -in $HOSTCERT -noout -text | grep -A 4 "CRL Distribution" | grep URI | sed 's/^.*URI://'`
|
|
[ x"$crl" == "x" ] && pr_literedln "--" || echo "$crl"
|
|
|
|
out " OCSP URI "
|
|
ocsp_uri=`$OPENSSL x509 -in $HOSTCERT -noout -ocsp_uri`
|
|
[ x"$ocsp_uri" == "x" ] && pr_literedln "--" || echo "$ocsp_uri"
|
|
|
|
out " OCSP stapling "
|
|
if grep "OCSP response" $TMPFILE | grep -q "no response sent" ; then
|
|
out " not offered"
|
|
else
|
|
if grep "OCSP Response Status" $TMPFILE | grep -q successful; then
|
|
pr_litegreen " OCSP stapling offered"
|
|
else
|
|
outln " not sure what's going on here, debug:"
|
|
grep -A 20 "OCSP response" $TMPFILE
|
|
ret=2
|
|
fi
|
|
fi
|
|
fi
|
|
outln
|
|
|
|
#gmt_unix_time, removed since 1.0.1f
|
|
#
|
|
#remotetime=`grep -w "Start Time" $TMPFILE | sed 's/[A-Za-z:() ]//g'`
|
|
#if [ ! -z "$remotetime" ]; then
|
|
# remotetime_stdformat=`date --date="@$remotetime" "+%Y-%m-%d %r"`
|
|
# difftime=`expr $localtime - $remotetime`
|
|
# [ $difftime -gt 0 ] && difftime="+"$difftime
|
|
# difftime=$difftime" s"
|
|
# outln " remotetime? : $remotetime ($difftime) = $remotetime_stdformat"
|
|
# outln " $remotetime"
|
|
# outln " $localtime"
|
|
#fi
|
|
#http://www.moserware.com/2009/06/first-few-milliseconds-of-https.html
|
|
|
|
tmpfile_handle tlsextdebug+status.txt
|
|
return $ret
|
|
}
|
|
# FIXME: revoked, see checkcert.sh
|
|
# FIXME: Trust (only CN)
|
|
|
|
|
|
|
|
# http://www.heise.de/security/artikel/Forward-Secrecy-testen-und-einrichten-1932806.html
|
|
pfs() {
|
|
outln
|
|
pr_blue "--> Testing (Perfect) Forward Secrecy (P)FS)"; outln " -- omitting 3DES, RC4 and Null Encryption here"
|
|
# https://community.qualys.com/blogs/securitylabs/2013/08/05/configuring-apache-nginx-and-openssl-for-forward-secrecy
|
|
PFSOK='EECDH+ECDSA+AESGCM EECDH+aRSA+AESGCM EECDH+ECDSA+SHA256 EECDH+aRSA+SHA256 EECDH+aRSA+RC4 EDH+aRSA EECDH RC4 !RC4-SHA !aNULL !eNULL !LOW !3DES !MD5 !EXP !PSK !SRP !DSS:@STRENGTH'
|
|
# ^^^ remark: the exclusing via ! doesn't work with libressl.
|
|
#
|
|
# PFSOK='EECDH+ECDSA+AESGCM EECDH+aRSA+AESGCM EECDH+ECDSA+SHA384 EECDH+ECDSA+SHA256 EECDH+aRSA+SHA384 EECDH'
|
|
# this catches also ECDHE-ECDSA-NULL-SHA or ECDHE-RSA-RC4-SHA
|
|
|
|
$OPENSSL ciphers -V "$PFSOK" >$TMPFILE 2>/dev/null
|
|
if [ $? -ne 0 ] ; then
|
|
number_pfs=`wc -l $TMPFILE | awk '{ print $1 }'`
|
|
if [ "$number_pfs" -le "$CLIENT_MIN_PFS" ] ; then
|
|
outln
|
|
pr_magentaln " Local problem: you have only $number_pfs client side PFS ciphers "
|
|
outln " Thus it doesn't make sense to test PFS"
|
|
[ $number_pfs -ne 0 ] && cat $TMPFILE
|
|
return 1
|
|
fi
|
|
fi
|
|
savedciphers=`cat $TMPFILE`
|
|
[ $SHOW_LOC_CIPH = "1" ] && echo "local ciphers available for testing PFS:" && echo `cat $TMPFILE`
|
|
|
|
$OPENSSL s_client -cipher 'ECDH:DH' $STARTTLS -connect $NODEIP:$PORT $SNI &>$TMPFILE </dev/null
|
|
ret=$?
|
|
outln
|
|
if [ $ret -ne 0 ] || [ `grep -c "BEGIN CERTIFICATE" $TMPFILE` -eq 0 ]; then
|
|
pr_brown "No PFS available"
|
|
else
|
|
pr_litegreenln "In general PFS is offered. Now testing specific ciphers ...";
|
|
outln "(it depends on the browser/client whether one of them will be used)\n"
|
|
none=0
|
|
neat_header
|
|
$OPENSSL ciphers -V "$PFSOK" | while read hexcode n ciph sslvers kx auth enc mac; do
|
|
$OPENSSL s_client -cipher $ciph $STARTTLS -connect $NODEIP:$PORT $SNI &>/dev/null </dev/null
|
|
ret=$?
|
|
if [ $ret -ne 0 ] && [ "$SHOW_EACH_C" -eq 0 ] ; then
|
|
continue # no successful connect AND not verbose displaying each cipher
|
|
fi
|
|
normalize_ciphercode $hexcode
|
|
neat_list $HEXC $ciph $kx $enc $strength
|
|
if [ "$SHOW_EACH_C" -ne 0 ] ; then
|
|
if [ $ret -eq 0 ]; then
|
|
pr_green "works"
|
|
else
|
|
out "not a/v"
|
|
fi
|
|
else
|
|
none=1
|
|
fi
|
|
outln
|
|
done
|
|
outln
|
|
if [ "$none" -eq 0 ] ; then
|
|
ret=0
|
|
else
|
|
pr_magenta "no PFS ciphers found"
|
|
ret=1
|
|
fi
|
|
fi
|
|
tmpfile_handle $FUNCNAME.txt
|
|
return $ret
|
|
#FIXME: setopt or something different
|
|
}
|
|
|
|
|
|
rc4() {
|
|
# shopt -s lastpipe # otherwise it's more tricky to access variables in a while loop
|
|
outln
|
|
pr_blue "--> Checking RC4 Ciphers" ; outln
|
|
$OPENSSL ciphers -V 'RC4:@STRENGTH' >$TMPFILE
|
|
[ $SHOW_LOC_CIPH = "1" ] && echo "local ciphers available for testing RC4:" && echo `cat $TMPFILE`
|
|
$OPENSSL s_client -cipher `$OPENSSL ciphers RC4` $STARTTLS -connect $NODEIP:$PORT $SNI &>/dev/null </dev/null
|
|
if [ $? -eq 0 ]; then
|
|
pr_literedln "\nRC4 is broken and is offered! Now testing specific ciphers...";
|
|
outln "(for legacy support e.g. IE6 rather consider x13 or x0a)\n"
|
|
bad=1
|
|
neat_header
|
|
cat $TMPFILE | while read hexcode n ciph sslvers kx auth enc mac; do
|
|
$OPENSSL s_client -cipher $ciph $STARTTLS -connect $NODEIP:$PORT $SNI </dev/null &>/dev/null
|
|
ret=$?
|
|
if [ $ret -ne 0 ] && [ "$SHOW_EACH_C" -eq 0 ] ; then
|
|
continue # no successful connect AND not verbose displaying each cipher
|
|
fi
|
|
normalize_ciphercode $hexcode
|
|
neat_list $HEXC $ciph $kx $enc $strength
|
|
if [ "$SHOW_EACH_C" -ne 0 ]; then
|
|
if [ $ret -eq 0 ]; then
|
|
pr_litered "available"
|
|
else
|
|
out "not a/v"
|
|
fi
|
|
else
|
|
bad=1
|
|
out
|
|
fi
|
|
outln
|
|
done
|
|
# https://en.wikipedia.org/wiki/Transport_Layer_Security#RC4_attacks
|
|
# http://blog.cryptographyengineering.com/2013/03/attack-of-week-rc4-is-kind-of-broken-in.html
|
|
outln
|
|
else
|
|
outln
|
|
pr_litegreenln "no RC4 ciphers detected (OK)"
|
|
bad=0
|
|
fi
|
|
|
|
# shopt -u lastpipe # othwise for some reason it segfaults
|
|
# FIXME: still segfaults: see https://www.mail-archive.com/bug-bash@gnu.org/msg14428.html |
|
|
# maybe use @PIPESTATUS as a workaround
|
|
tmpfile_handle $FUNCNAME.txt
|
|
return $bad
|
|
}
|
|
|
|
|
|
# good source for configuration and bugs: https://wiki.mozilla.org/Security/Server_Side_TLS
|
|
# good start to read: http://en.wikipedia.org/wiki/Transport_Layer_Security#Attacks_against_TLS.2FSSL
|
|
|
|
|
|
lucky13() {
|
|
#FIXME: to do
|
|
# CVE-2013-0169
|
|
# in a nutshell: don't offer CBC suites (again). MAC as a fix for padding oracles is not enough
|
|
# best: TLS v1.2+ AES GCM
|
|
echo "FIXME"
|
|
echo
|
|
}
|
|
|
|
|
|
spdy_pre(){
|
|
if [ "x$STARTTLS" != "x" ]; then
|
|
[[ $DEBUG -ge 2 ]] && outln "SPDY doesn't work with !HTTP"
|
|
return 1
|
|
fi
|
|
# first, does the current openssl support it?
|
|
$OPENSSL s_client help 2>&1 | grep -qw nextprotoneg
|
|
if [ $? -ne 0 ]; then
|
|
pr_magenta "Local problem: $OPENSSL doesn't support SPDY"; outln
|
|
return 7
|
|
fi
|
|
return 0
|
|
}
|
|
|
|
spdy() {
|
|
out " SPDY/NPN "
|
|
spdy_pre || return 0
|
|
$OPENSSL s_client -host $NODE -port $PORT -nextprotoneg $NPN_PROTOs </dev/null 2>/dev/null >$TMPFILE
|
|
if [ $? -eq 0 ]; then
|
|
# we need -a here
|
|
tmpstr=`grep -a '^Protocols' $TMPFILE | sed 's/Protocols.*: //'`
|
|
if [ -z "$tmpstr" -o "$tmpstr" = " " ] ; then
|
|
out "not offered"
|
|
ret=1
|
|
else
|
|
# now comes a strange thing: "Protocols advertised by server:" is empty but connection succeeded
|
|
if echo $tmpstr | egrep -q "spdy|http" ; then
|
|
pr_bold "$tmpstr" ; out " (advertised)"
|
|
ret=0
|
|
else
|
|
pr_litemagenta "please check manually, response from server was ambigious ..."
|
|
ret=10
|
|
fi
|
|
fi
|
|
else
|
|
pr_litemagenta "handshake failed"
|
|
ret=2
|
|
fi
|
|
outln
|
|
# btw: nmap can do that too http://nmap.org/nsedoc/scripts/tls-nextprotoneg.html
|
|
# nmap --script=tls-nextprotoneg #NODE -p $PORT is your friend if your openssl doesn't want to test this
|
|
tmpfile_handle $FUNCNAME.txt
|
|
return $ret
|
|
}
|
|
|
|
fd_socket() {
|
|
# arg doesn't work here
|
|
if ! exec 5<> /dev/tcp/$NODEIP/$PORT; then
|
|
pr_magenta "`basename $0`: unable to open a socket to $NODEIP:$PORT"
|
|
return 6
|
|
fi
|
|
return 0
|
|
}
|
|
|
|
close_socket(){
|
|
exec 5<&-
|
|
exec 5>&-
|
|
return 0
|
|
}
|
|
|
|
## old network code ^^^^^^
|
|
|
|
|
|
### new funcs for network follow
|
|
|
|
socksend_clienthello() {
|
|
code2network "$SSLv2_CLIENT_HELLO"
|
|
data=`echo $NW_STR`
|
|
[[ "$DEBUG" -ge 3 ]] && echo "\"$data\""
|
|
printf -- "$data" >&5 2>/dev/null &
|
|
sleep $USLEEP_SND
|
|
}
|
|
|
|
sockread_serverhello() {
|
|
[[ "x$2" = "x" ]] && maxsleep=$MAX_WAITSOCK || maxsleep=$2
|
|
ret=0
|
|
|
|
SOCK_REPLY_FILE=`mktemp /tmp/ddreply.XXXXXX` || exit 7
|
|
dd bs=$1 of=$SOCK_REPLY_FILE count=1 <&5 2>/dev/null &
|
|
pid=$!
|
|
|
|
while true; do
|
|
if ! ps ax | grep -v grep | grep -q $pid; then
|
|
break # didn't reach maxsleep yet
|
|
kill $pid >&2 2>/dev/null
|
|
fi
|
|
sleep $USLEEP_REC
|
|
maxsleep=$(($maxsleep - 1))
|
|
[[ $maxsleep -le 0 ]] && break
|
|
done
|
|
|
|
if ps ax | grep -v grep | grep -q $pid; then
|
|
# time's up and dd is still alive --> timeout
|
|
kill $pid >&2 2>/dev/null
|
|
wait $pid 2>/dev/null
|
|
ret=3 # means killed
|
|
fi
|
|
|
|
return $ret
|
|
}
|
|
|
|
# arg1: name of file with socket reply
|
|
display_sslv2serverhello() {
|
|
# server hello: in hex representation, see below
|
|
# byte 1+2: length of server hello 0123
|
|
# 3: 04=Handshake message, server hello 45
|
|
# 4: session id hit or not (boolean: 00=false, this 67
|
|
# is the normal case)
|
|
# 5: certificate type, 01 = x509 89
|
|
# 6+7 version (00 02 = SSLv2) 10-13
|
|
# 8+9 certificate length 14-17
|
|
# 10+11 cipher spec length 17-20
|
|
# 12+13 connection id length
|
|
# [certificate length] ==> certificate
|
|
# [cipher spec length] ==> ciphers GOOD: HERE ARE ALL CIPHERS ALREADY!
|
|
|
|
v2_hello_ascii=`hexdump -v -e '16/1 "%02X"' $1`
|
|
[[ "$DEBUG" -ge 4 ]] && echo $v2_hello_ascii # one line without any blanks
|
|
[[ -z $v2_hello_ascii ]] && return 0 # no server hello received
|
|
|
|
# now scrape two bytes out of the reply per byte
|
|
v2_hello_initbyte="${v2_hello_ascii:0:1}" # normally this belongs to the next, should be 8!
|
|
v2_hello_length="${v2_hello_ascii:1:3}" # + 0x8000 see above
|
|
v2_hello_handshake="${v2_hello_ascii:4:2}"
|
|
v2_hello_cert_length="${v2_hello_ascii:14:4}"
|
|
v2_hello_cipherspec_length="${v2_hello_ascii:18:4}"
|
|
V2_HELLO_CIPHERSPEC_LENGTH=`printf "%d\n" "0x$v2_hello_cipherspec_length"`
|
|
|
|
if [[ $v2_hello_initbyte != "8" ]] || [[ $v2_hello_handshake != "04" ]]; then
|
|
[[ $DEBUG -ge 2 ]] && echo "$v2_hello_initbyte / $v2_hello_handshake"
|
|
return 1
|
|
fi
|
|
|
|
if [[ $DEBUG -ge 3 ]]; then
|
|
echo "SSLv2 server hello length: 0x0$v2_hello_length"
|
|
echo "SSLv2 certificate length: 0x$v2_hello_cert_length"
|
|
echo "SSLv2 cipher spec length: 0x$v2_hello_cipherspec_length"
|
|
fi
|
|
return 0
|
|
}
|
|
|
|
|
|
# arg1: name of file with socket reply
|
|
display_tls_serverhello() {
|
|
# server hello:
|
|
# byte 0: 0x16=TLS, 0x15= TLS alert
|
|
# byte 1+2: 03, TLS version
|
|
# byte 3+4: length all
|
|
# byte 5: handshake type (2=hello) TLS alert: level (2=fatal), descr (0x28=handshake failure)
|
|
# byte 6+7+8: length server hello
|
|
# byte 9+10: 03, TLS version (00: SSLv3, 01: TLS 1.0, 02: TLS 1.1, 03: TLS 1.2)
|
|
# byte 11-14: TLS timestamp
|
|
# byte 15-42: random (28 bytes)
|
|
# byte 43 : session id length
|
|
# byte 44+45+sid-len: cipher suite!
|
|
# byte 46+sid-len: compression method: 00: none, 01: deflate
|
|
# byte 47+48+sid-len: extension length
|
|
|
|
tls_hello_ascii=`hexdump -v -e '16/1 "%02X"' $1`
|
|
[[ "$DEBUG" -eq 5 ]] && echo $tls_hello_ascii # one line without any blanks
|
|
[[ -z $tls_hello_ascii ]] && return 0 # no server hello received
|
|
|
|
# now scrape two bytes out of the reply per byte
|
|
tls_hello_initbyte="${tls_hello_ascii:0:2}" # normally this is x16
|
|
tls_hello_protocol="${tls_hello_ascii:2:4}"
|
|
tls_len_all=`printf "%d\n" ${tls_hello_ascii:6:4}`
|
|
|
|
if [[ $tls_hello_initbyte != "16" ]] ; then
|
|
[[ $DEBUG -ge 1 ]] && echo "tls_hello_initbyte: 0x$tls_hello_initbyte"
|
|
if [[ $DEBUG -ge 2 ]]; then
|
|
echo "tls_hello_protocol: 0x$tls_hello_protocol"
|
|
echo "tls_len_all: $tls_len_all"
|
|
echo "tls_err_level: ${tls_hello_ascii:10:2}"
|
|
echo "tls_err_descr: 0x${tls_hello_ascii:12:2}"
|
|
fi
|
|
return 1
|
|
fi
|
|
|
|
DETECTED_TLS_VERSION=$tls_hello_protocol
|
|
|
|
tls_hello="${tls_hello_ascii:10:2}" # normally this is x02
|
|
tls_hello_protocol2="${tls_hello_ascii:18:4}"
|
|
tls_hello_time="${tls_hello_ascii:22:8}"
|
|
tls_time=`printf "%d\n" 0x$tls_hello_time`
|
|
tls_time=`date --date="@$tls_time" "+%Y-%m-%d %r"`
|
|
tls_sid_len=`printf "%d\n" 0x${tls_hello_ascii:86:2}`
|
|
let sid_offset=88+$tls_sid_len*2
|
|
tls_cipher_suite="${tls_hello_ascii:$sid_offset:4}"
|
|
let sid_offset=92+$tls_sid_len*2
|
|
tls_compression_method="${tls_hello_ascii:$sid_offset:2}"
|
|
|
|
if [[ $DEBUG -ge 2 ]]; then
|
|
|
|
echo "tls_hello_initbyte: 0x$tls_hello_initbyte"
|
|
echo "tls_hello: 0x$tls_hello"
|
|
echo "tls_hello_protocol: 0x$tls_hello_protocol"
|
|
if [[ $DEBUG -ge 4 ]]; then
|
|
echo "tls_hello_protocol2: 0x$tls_hello_protocol2"
|
|
echo "tls_len_all: $tls_len_all"
|
|
echo "tls_sid_len: $tls_sid_len"
|
|
fi
|
|
echo "tls_hello_time: 0x$tls_hello_time ($tls_time)"
|
|
echo "tls_cipher_suite: 0x$tls_cipher_suite"
|
|
echo "tls_compression_method: 0x$tls_compression_method"
|
|
fi
|
|
|
|
return 0
|
|
}
|
|
|
|
|
|
# helper function for protocol checks
|
|
# arg1: formatted string here in the code
|
|
code2network() {
|
|
NW_STR=`echo "$1" | sed -e 's/,/\\\x/g' | sed -e 's/# .*$//g' -e 's/ //g' -e '/^$/d' | tr -d '\n' | tr -d '\t'`
|
|
}
|
|
|
|
len2twobytes() {
|
|
len_arg1=`echo ${#1}`
|
|
[[ $len_arg1 -le 2 ]] && LEN_STR=`printf "00, %02s \n" $1`
|
|
[[ $len_arg1 -eq 3 ]] && LEN_STR=`printf "%02s, %02s \n" ${1:0:1} ${1:1:2}`
|
|
[[ $len_arg1 -eq 4 ]] && LEN_STR=`printf "%02s, %02s \n" ${1:0:2} ${1:2:2}`
|
|
}
|
|
|
|
|
|
sslv2_sockets() {
|
|
V2_HELLO_CIPHERSPEC_LENGTH=0 # initialize
|
|
USLEEP_REC=${USLEEP_REC:-0.2}
|
|
USLEEP_SND=${USLEEP_SND:-0.1} # 1 second wait until otherwise specified
|
|
SOCK_REPLY_FILE="" # we do this with a file here. At a certain point heartbleed and ccs needs to be changed and make use of code2network
|
|
NW_STR=""
|
|
|
|
out " SSLv2 ";
|
|
|
|
# SSLV2 chello:
|
|
SSLv2_CLIENT_HELLO="
|
|
,80,34 # length (here: 52)
|
|
,01 # Client Hello
|
|
,00,02 # SSLv2
|
|
,00,1b # cipher spec length (here: 27 )
|
|
,00,00 # session ID length
|
|
,00,10 # challenge length
|
|
,05,00,80 # 1st cipher 9 cipher specs, only classical V2 ciphers are used here, see http://max.euston.net/d/tip_sslciphers.html
|
|
,03,00,80 # 2nd there are v3 in v2!!! : https://tools.ietf.org/html/rfc6101#appendix-E
|
|
,01,00,80 # 3rd Cipher specifications introduced in version 3.0 can be included in version 2.0 client hello messages using
|
|
,07,00,c0 # 4th the syntax below. [..] # V2CipherSpec (see Version 3.0 name) = { 0x00, CipherSuite }; !!!!
|
|
,08,00,80 # 5th
|
|
,06,00,40 # 6th
|
|
,04,00,80 # 7th
|
|
,02,00,80 # 8th
|
|
,00,00,00 # 9th
|
|
,29,22,be,b3,5a,01,8b,04,fe,5f,80,03,a0,13,eb,c4" # Challenge
|
|
|
|
fd_socket 5 || return 6
|
|
|
|
[[ "$DEBUG" -ge 2 ]] && out "sending client hello... "
|
|
socksend_clienthello
|
|
|
|
sockread_serverhello 32768 0
|
|
[[ "$DEBUG" -ge 2 ]] && out "reading server hello... "
|
|
if [[ "$DEBUG" -eq 3 ]]; then
|
|
hexdump -C $SOCK_REPLY_FILE | head -6
|
|
outln
|
|
fi
|
|
|
|
display_sslv2serverhello "$SOCK_REPLY_FILE"
|
|
|
|
# see https://secure.wand.net.nz/trac/libprotoident/wiki/SSL
|
|
lines=`cat "$SOCK_REPLY_FILE" 2>/dev/null | hexdump -C | wc -l`
|
|
[[ "$DEBUG" -ge 2 ]] && out " ($lines lines) "
|
|
|
|
if [[ "$lines" -gt 1 ]] ;then
|
|
ciphers_detected=$(($V2_HELLO_CIPHERSPEC_LENGTH / 3 ))
|
|
if [ 0 -eq $ciphers_detected ] ; then
|
|
pr_litered "supported but couldn't detect a cipher"; outln "(may need debugging)"
|
|
else
|
|
pr_red "offered (NOT ok)"; outln " -- $ciphers_detected ciphers"
|
|
fi
|
|
ret=1
|
|
else
|
|
pr_greenln "not offered (OK)"
|
|
ret=0
|
|
fi
|
|
pr_off
|
|
|
|
close_socket
|
|
TMPFILE=$SOCK_REPLY_FILE
|
|
tmpfile_handle $FUNCNAME.dd
|
|
return $ret
|
|
}
|
|
|
|
|
|
#for tls_low_byte in "00" "01" "02" "03"; do
|
|
tls_sockets() {
|
|
SN_HEX=""
|
|
LEN_SN_HEX=0
|
|
COL_WIDTH=32
|
|
USLEEP_REC=${USLEEP_REC:-0.2}
|
|
USLEEP_SND=${USLEEP_SND:-0.1} # 1 second wait until otherwise specified
|
|
MAX_WAITSOCK=2
|
|
SOCK_REPLY_FILE=""
|
|
NW_STR=""
|
|
LEN_STR=""
|
|
DETECTED_TLS_VERSION=""
|
|
|
|
# 133 cipher: spdy, TLS 1.2
|
|
TLS12_CIPHER="
|
|
cc, 14, cc, 13, cc, 15, c0, 30, c0, 2c, c0, 28, c0, 24, c0, 14,
|
|
c0, 0a, c0, 22, c0, 21, c0, 20, 00, a5, 00, a3, 00, a1, 00, 9f,
|
|
00, 6b, 00, 6a, 00, 69, 00, 68, 00, 39, 00, 38, 00, 37, 00, 36,
|
|
c0, 77, c0, 73, 00, c4, 00, c3, 00, c2, 00, c1, 00, 88, 00, 87,
|
|
00, 86, 00, 85, c0, 32, c0, 2e, c0, 2a, c0, 26, c0, 0f, c0, 05,
|
|
c0, 79, c0, 75, 00, 9d, 00, 3d, 00, 35, 00, c0, 00, 84, c0, 2f,
|
|
c0, 2b, c0, 27, c0, 23, c0, 13, c0, 09, c0, 1f, c0, 1e, c0, 1d,
|
|
00, a4, 00, a2, 00, a0, 00, 9e, 00, 67, 00, 40, 00, 3f, 00, 3e,
|
|
00, 33, 00, 32, 00, 31, 00, 30, c0, 76, c0, 72, 00, be, 00, bd,
|
|
00, bc, 00, bb, 00, 9a, 00, 99, 00, 98, 00, 97, 00, 45, 00, 44,
|
|
00, 43, 00, 42, c0, 31, c0, 2d, c0, 29, c0, 25, c0, 0e, c0, 04,
|
|
c0, 78, c0, 74, 00, 9c, 00, 3c, 00, 2f, 00, ba, 00, 96, 00, 41,
|
|
00, 07, c0, 11, c0, 07, 00, 66, c0, 0c, c0, 02, 00, 05, 00, 04,
|
|
c0, 12, c0, 08, c0, 1c, c0, 1b, c0, 1a, 00, 16, 00, 13, 00, 10,
|
|
00, 0d, c0, 0d, c0, 03, 00, 0a, 00, 63, 00, 15, 00, 12, 00, 0f,
|
|
00, 0c, 00, 62, 00, 09, 00, 65, 00, 64, 00, 14, 00, 11, 00, 0e,
|
|
00, 0b, 00, 08, 00, 06, 00, 03, 00, ff"
|
|
|
|
# 76 cipher for SSLv3, TLS 1, TLS 1.1:
|
|
TLS_CIPHER="
|
|
c0, 14, c0, 0a, c0, 22, c0, 21, c0, 20, 00, 39, 00, 38, 00, 37,
|
|
00, 36, 00, 88, 00, 87, 00, 86, 00, 85, c0, 0f, c0, 05, 00, 35,
|
|
00, 84, c0, 13, c0, 09, c0, 1f, c0, 1e, c0, 1d, 00, 33, 00, 32,
|
|
00, 31, 00, 30, 00, 9a, 00, 99, 00, 98, 00, 97, 00, 45, 00, 44,
|
|
00, 43, 00, 42, c0, 0e, c0, 04, 00, 2f, 00, 96, 00, 41, 00, 07,
|
|
c0, 11, c0, 07, 00, 66, c0, 0c, c0, 02, 00, 05, 00, 04, c0, 12,
|
|
c0, 08, c0, 1c, c0, 1b, c0, 1a, 00, 16, 00, 13, 00, 10, 00, 0d,
|
|
c0, 0d, c0, 03, 00, 0a, 00, 63, 00, 15, 00, 12, 00, 0f, 00, 0c,
|
|
00, 62, 00, 09, 00, 65, 00, 64, 00, 14, 00, 11, 00, 0e, 00, 0b,
|
|
00, 08, 00, 06, 00, 03, 00, ff"
|
|
|
|
#formatted example for SNI
|
|
#00 00 # extention server_name
|
|
#00 1a # length = the following +2 = server_name length + 5
|
|
#00 18 # server_name list_length = server_name length +3
|
|
#00 # server_name type (hostname)
|
|
#00 15 # server_name length
|
|
#66 66 66 66 66 66 2e 66 66 66 66 66 66 66 66 66 66 2e 66 66 66 target.mydomain1.tld # server_name target
|
|
|
|
|
|
|
|
# arg1: TLS_VER_LSB
|
|
# arg2: CIPHER_SUITES string
|
|
# arg3: SERVERNAME
|
|
# ??? more extensions?
|
|
|
|
len_sni=`echo ${#3}`
|
|
#tls_ver=printf "%02x\n" $1"
|
|
|
|
code2network "$2"
|
|
cipher_suites="$NW_STR" # we don't have the leading \x here so string length is two byte less, see next
|
|
|
|
# convert length's from dec to hex:
|
|
hex_len_sn_hex=`printf "%02x\n" $LEN_SN_HEX`
|
|
hex_len_sn_hex3=`printf "%02x\n" $((LEN_SN_HEX+3))`
|
|
hex_len_sn_hex5=`printf "%02x\n" $((LEN_SN_HEX+5))`
|
|
hex_len_extention=`printf "%02x\n" $((LEN_SN_HEX+9))`
|
|
|
|
len_ciph_suites_byte=`echo ${#cipher_suites}`
|
|
let "len_ciph_suites_byte += 2"
|
|
|
|
# we have additional 2 chars \x in each 2 byte string and 2 byte ciphers, so we need to divide by 4:
|
|
len_ciph_suites=`printf "%02x\n" $(($len_ciph_suites_byte / 4 ))`
|
|
len2twobytes "$len_ciph_suites"
|
|
len_ciph_suites_word="$LEN_STR"
|
|
[[ $DEBUG -ge 4 ]] && echo $len_ciph_suites_word
|
|
|
|
len2twobytes `printf "%02x\n" $((0x$len_ciph_suites + 0x27 + 0x$hex_len_extention + 0x2))`
|
|
#len2twobytes `printf "%02x\n" $((0x$len_ciph_suites + 0x27))`
|
|
len_c_hello_word="$LEN_STR"
|
|
[[ $DEBUG -ge 4 ]] && echo $len_c_hello_word
|
|
|
|
len2twobytes `printf "%02x\n" $((0x$len_ciph_suites + 0x2b + 0x$hex_len_extention + 0x2))`
|
|
#len2twobytes `printf "%02x\n" $((0x$len_ciph_suites + 0x2b))`
|
|
len_all_word="$LEN_STR"
|
|
[[ $DEBUG -ge 4 ]] && echo $len_all_word
|
|
|
|
TLS_CLIENT_HELLO="
|
|
# TLS header ( 5 bytes)
|
|
,16, 03, $1 # TLS Version
|
|
,$len_all_word # Length <---
|
|
# Handshake header:
|
|
,01 # Type (x01 for ClientHello)
|
|
,00, $len_c_hello_word # Length ClientHello
|
|
,03, $1 # TLS Version (again)
|
|
,54, 51, 1e, 7a # Unix time since see www.moserware.com/2009/06/first-few-milliseconds-of-https.html
|
|
,de, ad, be, ef # Random 28 bytes
|
|
,31, 33, 07, 00, 00, 00, 00, 00
|
|
,cf, bd, 39, 04, cc, 16, 0a, 85
|
|
,03, 90, 9f, 77, 04, 33, d4, de
|
|
,00 # Session ID length
|
|
,$len_ciph_suites_word # Cipher suites length
|
|
# Cipher suites
|
|
,$cipher_suites
|
|
,01 # Compression methods length
|
|
,00" # Compression method (x00 for NULL)
|
|
|
|
EXTENSION_CONTAINING_SNI="
|
|
,00, $hex_len_extention # first the len of all (here: 1) extentions. We assume len(hostname) < FF - 9
|
|
,00, 00 # extention server_name
|
|
,00, $hex_len_sn_hex5 # length SNI EXT
|
|
,00, $hex_len_sn_hex3 # server_name list_length
|
|
,00 # server_name type (hostname)
|
|
,00, $hex_len_sn_hex # server_name length
|
|
,$SN_HEX" # server_name target
|
|
|
|
fd_socket 5 || return 6
|
|
|
|
code2network "$TLS_CLIENT_HELLO$EXTENSION_CONTAINING_SNI"
|
|
#code2network "$TLS_CLIENT_HELLO"
|
|
data=`echo $NW_STR`
|
|
|
|
[[ "$DEBUG" -ge 2 ]] && printf "sending client hello..."
|
|
if [[ "$tls_low_byte" == "03" ]] ; then
|
|
socksend_clienthello $tls_low_byte "$TLS12_CIPHER" $SNIHEX
|
|
else
|
|
socksend_clienthello $tls_low_byte "$TLS_CIPHER" $SNIHEX
|
|
fi
|
|
|
|
sockread_serverhello 32768 0
|
|
[[ "$DEBUG" -ge 2 ]] && printf "reading server hello..."
|
|
if [[ "$DEBUG" -ge 3 ]]; then
|
|
hexdump -C $SOCK_REPLY_FILE | head -6
|
|
echo
|
|
fi
|
|
|
|
display_tls_serverhello "$SOCK_REPLY_FILE"
|
|
ret=$?
|
|
|
|
# see https://secure.wand.net.nz/trac/libprotoident/wiki/SSL
|
|
lines=`cat "$SOCK_REPLY_FILE" 2>/dev/null | hexdump -C | wc -l`
|
|
[[ "$DEBUG" -ge 2 ]] && out " (returned $lines lines) "
|
|
|
|
# case $tls_low_byte in
|
|
# 00) tls_str="SSLv3" ;;
|
|
# 01) tls_str="TLS 1" ;;
|
|
# 02) tls_str="TLS 1.1" ;;
|
|
# 03) tls_str="TLS 1.2" ;;
|
|
# esac
|
|
|
|
# printf "Protokoll "; tput bold; printf "$tls_low_byte = $tls_str"; tput sgr0; printf ": "
|
|
|
|
if [[ $ret -eq 1 ]] || [[ $lines -eq 1 ]] ; then
|
|
outln "NOT available"
|
|
ret=1
|
|
else
|
|
if [[ 03$tls_low_byte -eq $DETECTED_TLS_VERSION ]]; then
|
|
outln "available"
|
|
ret=0
|
|
else
|
|
out "NOT available "
|
|
[[ $DEBUG -ge 2 ]] && echo -n "send: 0x03$tls_low_byte, returned: 0x$DETECTED_TLS_VERSION"
|
|
echo
|
|
fi
|
|
fi
|
|
|
|
|
|
close_socket
|
|
TMPFILE=$SOCK_REPLY_FILE
|
|
tmpfile_handle $FUNCNAME.dd
|
|
return $ret
|
|
}
|
|
|
|
|
|
|
|
ok_ids(){
|
|
greenln "\n ok -- something resetted our ccs packets"
|
|
return 0
|
|
}
|
|
|
|
|
|
ccs_injection(){
|
|
# see https://www.openssl.org/news/secadv_20140605.txt
|
|
# mainly adapted from Ramon de C Valle's C code from https://gist.github.com/rcvalle/71f4b027d61a78c42607
|
|
pr_bold " CCS "; out " (CVE-2014-0224), experimental "
|
|
|
|
$OPENSSL s_client $STARTTLS -connect $NODEIP:$PORT &>$TMPFILE </dev/null
|
|
|
|
tls_proto_offered=`grep -w Protocol $TMPFILE | sed -E 's/[^[:digit:]]//g'`
|
|
#tls_proto_offered=`grep -w Protocol $TMPFILE | sed 's/^.*Protocol//'`
|
|
case $tls_proto_offered in
|
|
12) tls_hexcode="x03, x03" ;;
|
|
11) tls_hexcode="x03, x02" ;;
|
|
*) tls_hexcode="x03, x01" ;;
|
|
esac
|
|
ccs_message=", x14, $tls_hexcode ,x00, x01, x01"
|
|
|
|
client_hello="
|
|
# TLS header (5 bytes)
|
|
,x16, # content type (x16 for handshake)
|
|
$tls_hexcode, # TLS version
|
|
x00, x93, # length
|
|
# Handshake header
|
|
x01, # type (x01 for ClientHello)
|
|
x00, x00, x8f, # length
|
|
$tls_hexcode, # TLS version
|
|
# Random (32 byte)
|
|
x53, x43, x5b, x90, x9d, x9b, x72, x0b,
|
|
xbc, x0c, xbc, x2b, x92, xa8, x48, x97,
|
|
xcf, xbd, x39, x04, xcc, x16, x0a, x85,
|
|
x03, x90, x9f, x77, x04, x33, xd4, xde,
|
|
x00, # session ID length
|
|
x00, x68, # cipher suites length
|
|
# Cipher suites (51 suites)
|
|
xc0, x13, xc0, x12, xc0, x11, xc0, x10,
|
|
xc0, x0f, xc0, x0e, xc0, x0d, xc0, x0c,
|
|
xc0, x0b, xc0, x0a, xc0, x09, xc0, x08,
|
|
xc0, x07, xc0, x06, xc0, x05, xc0, x04,
|
|
xc0, x03, xc0, x02, xc0, x01, x00, x39,
|
|
x00, x38, x00, x37, x00, x36, x00, x35, x00, x34,
|
|
x00, x33, x00, x32, x00, x31, x00, x30,
|
|
x00, x2f, x00, x16, x00, x15, x00, x14,
|
|
x00, x13, x00, x12, x00, x11, x00, x10,
|
|
x00, x0f, x00, x0e, x00, x0d, x00, x0c,
|
|
x00, x0b, x00, x0a, x00, x09, x00, x08,
|
|
x00, x07, x00, x06, x00, x05, x00, x04,
|
|
x00, x03, x00, x02, x00, x01, x01, x00"
|
|
|
|
fd_socket 5 || return 6
|
|
|
|
[[ $DEBUG -ge 2 ]] && out "\nsending client hello, "
|
|
socksend "$client_hello" 1
|
|
sockread 16384
|
|
|
|
[[ $DEBUG -ge 2 ]] && outln "\nreading server hello"
|
|
if [[ $DEBUG -ge 3 ]]; then
|
|
echo "$SOCKREPLY" | "${HEXDUMPVIEW[@]}" | head -20
|
|
outln "[...]"
|
|
outln "\npayload #1 with TLS version $tls_hexcode:"
|
|
fi
|
|
|
|
socksend "$ccs_message" 1 || ok_ids
|
|
sockread 2048 5 # 5 seconds
|
|
if [[ $DEBUG -ge 3 ]]; then
|
|
outln "\n1st reply: "
|
|
out "$SOCKREPLY" | "${HEXDUMPVIEW[@]}" | head -20
|
|
# ok: 15 | 0301 | 02 | 02 0a == ALERT | TLS 1.0 | Length=2 | Unexpected Message (0a)
|
|
outln
|
|
outln "payload #2 with TLS version $tls_hexcode:"
|
|
fi
|
|
|
|
socksend "$ccs_message" 2 || ok_ids
|
|
sockread 2048 5
|
|
retval=$?
|
|
|
|
if [[ $DEBUG -ge 3 ]]; then
|
|
outln "\n2nd reply: "
|
|
out "$SOCKREPLY" | "${HEXDUMPVIEW[@]}"
|
|
# not ok: 15 | 0301 | 02 | 02 | 15 == ALERT | TLS 1.0 | Length=2 | Decryption failed (21)
|
|
# ok: 0a or nothing: ==> RST
|
|
outln
|
|
fi
|
|
|
|
reply_sanitized=`echo "$SOCKREPLY" | "${HEXDUMPPLAIN[@]}" | sed 's/^..........//'`
|
|
lines=`echo "$SOCKREPLY" | "${HEXDUMP[@]}" | wc -l`
|
|
|
|
if [ "$reply_sanitized" == "0a" ] || [ "$lines" -gt 1 ] ; then
|
|
pr_green "not vulnerable (OK)"
|
|
ret=0
|
|
else
|
|
pr_red "VULNERABLE"
|
|
ret=1
|
|
fi
|
|
[ $retval -eq 3 ] && out "(timed out)"
|
|
outln
|
|
|
|
close_socket
|
|
tmpfile_handle $FUNCNAME.txt
|
|
return $ret
|
|
}
|
|
|
|
heartbleed(){
|
|
pr_bold " Heartbleed\c"; out " (CVE-2014-0160) "
|
|
# mainly adapted from https://gist.github.com/takeshixx/10107280
|
|
|
|
# determine TLS versions available:
|
|
$OPENSSL s_client $STARTTLS -connect $NODEIP:$PORT -tlsextdebug &>$TMPFILE </dev/null
|
|
|
|
tls_proto_offered=`grep -w Protocol $TMPFILE | sed -E 's/[^[:digit:]]//g'`
|
|
case $tls_proto_offered in
|
|
12) tls_hexcode="x03, x03" ;;
|
|
11) tls_hexcode="x03, x02" ;;
|
|
*) tls_hexcode="x03, x01" ;;
|
|
esac
|
|
heartbleed_payload=", x18, $tls_hexcode, x00, x03, x01, x40, x00"
|
|
|
|
client_hello="
|
|
# TLS header ( 5 bytes)
|
|
,x16, # content type (x16 for handshake)
|
|
$tls_hexcode, # TLS version
|
|
x00, xdc, # length
|
|
# Handshake header
|
|
x01, # type (x01 for ClientHello)
|
|
x00, x00, xd8, # length
|
|
$tls_hexcode, # TLS version
|
|
# Random (32 byte)
|
|
x53, x43, x5b, x90, x9d, x9b, x72, x0b,
|
|
xbc, x0c, xbc, x2b, x92, xa8, x48, x97,
|
|
xcf, xbd, x39, x04, xcc, x16, x0a, x85,
|
|
x03, x90, x9f, x77, x04, x33, xd4, xde,
|
|
x00, # session ID length
|
|
x00, x66, # cipher suites length
|
|
# cipher suites (51 suites)
|
|
xc0, x14, xc0, x0a, xc0, x22, xc0, x21,
|
|
x00, x39, x00, x38, x00, x88, x00, x87,
|
|
xc0, x0f, xc0, x05, x00, x35, x00, x84,
|
|
xc0, x12, xc0, x08, xc0, x1c, xc0, x1b,
|
|
x00, x16, x00, x13, xc0, x0d, xc0, x03,
|
|
x00, x0a, xc0, x13, xc0, x09, xc0, x1f,
|
|
xc0, x1e, x00, x33, x00, x32, x00, x9a,
|
|
x00, x99, x00, x45, x00, x44, xc0, x0e,
|
|
xc0, x04, x00, x2f, x00, x96, x00, x41,
|
|
xc0, x11, xc0, x07, xc0, x0c, xc0, x02,
|
|
x00, x05, x00, x04, x00, x15, x00, x12,
|
|
x00, x09, x00, x14, x00, x11, x00, x08,
|
|
x00, x06, x00, x03, x00, xff,
|
|
x01, # compression methods length
|
|
x00, # compression method (x00 for NULL)
|
|
x00, x49, # extensions length
|
|
# extension: ec_point_formats
|
|
x00, x0b, x00, x04, x03, x00, x01, x02,
|
|
# extension: elliptic_curves
|
|
x00, x0a, x00, x34, x00, x32, x00, x0e,
|
|
x00, x0d, x00, x19, x00, x0b, x00, x0c,
|
|
x00, x18, x00, x09, x00, x0a, x00, x16,
|
|
x00, x17, x00, x08, x00, x06, x00, x07,
|
|
x00, x14, x00, x15, x00, x04, x00, x05,
|
|
x00, x12, x00, x13, x00, x01, x00, x02,
|
|
x00, x03, x00, x0f, x00, x10, x00, x11,
|
|
# extension: session ticket TLS
|
|
x00, x23, x00, x00,
|
|
# extension: heartbeat
|
|
x00, x0f, x00, x01, x01"
|
|
|
|
fd_socket 5 || return 6
|
|
|
|
[[ $DEBUG -ge 2 ]] && outln "\nsending client hello (TLS version $tls_hexcode)"
|
|
socksend "$client_hello" 1
|
|
sockread 16384
|
|
|
|
[[ $DEBUG -ge 2 ]] && outln "\nreading server hello"
|
|
if [[ $DEBUG -ge 3 ]]; then
|
|
echo "$SOCKREPLY" | "${HEXDUMPVIEW[@]}" | head -20
|
|
outln "[...]"
|
|
outln "\nsending payload with TLS version $tls_hexcode:"
|
|
fi
|
|
|
|
socksend "$heartbleed_payload" 1
|
|
sockread 16384
|
|
retval=$?
|
|
|
|
if [[ $DEBUG -ge 3 ]]; then
|
|
outln "\nheartbleed reply: "
|
|
echo "$SOCKREPLY" | "${HEXDUMPVIEW[@]}"
|
|
outln
|
|
fi
|
|
|
|
lines_returned=`echo "$SOCKREPLY" | "${HEXDUMP[@]}" | wc -l`
|
|
if [ $lines_returned -gt 1 ]; then
|
|
pr_red "VULNERABLE"
|
|
ret=1
|
|
else
|
|
pr_green "not vulnerable (OK)"
|
|
ret=0
|
|
fi
|
|
[ $retval -eq 3 ] && out "(timed out)"
|
|
outln
|
|
|
|
close_socket
|
|
tmpfile_handle $FUNCNAME.txt
|
|
return $ret
|
|
}
|
|
|
|
|
|
renego() {
|
|
ADDCMD=""
|
|
# This tests for CVE-2009-3555 / RFC5746, OSVDB: 59968-59974
|
|
case "$OSSL_VER" in
|
|
0.9.8*) # we need this for Mac OSX unfortunately
|
|
case "$OSSL_VER_APPENDIX" in
|
|
[a-l])
|
|
pr_magenta "Your $OPENSSL $OSSL_VER cannot test the secure renegotiation vulnerability"
|
|
return 3 ;;
|
|
[m-z])
|
|
# all ok ;;
|
|
esac ;;
|
|
1.0.1*)
|
|
ADDCMD="-legacy_renegotiation" ;;
|
|
0.9.9*|1.0*)
|
|
# all ok ;;
|
|
esac
|
|
pr_bold " Renegotiation "; out "(CVE 2009-3555) "
|
|
echo R | $OPENSSL s_client $ADDCMD $STARTTLS -connect $NODEIP:$PORT $SNI &>/dev/null
|
|
reneg_ok=$? # 0=client is renegotiating and does not gets an error: that should not be!
|
|
NEG_STR="Secure Renegotiation IS NOT"
|
|
echo "R" | $OPENSSL s_client $STARTTLS -connect $NODEIP:$PORT $SNI 2>&1 | grep -iq "$NEG_STR"
|
|
secreg=$? # 0= Secure Renegotiation IS NOT supported
|
|
|
|
if [ $reneg_ok -eq 0 ] && [ $secreg -eq 0 ]; then
|
|
# Client side renegotiation is accepted and secure renegotiation IS NOT supported
|
|
pr_redln "IS vulnerable (NOT ok)"
|
|
return 1
|
|
fi
|
|
if [ $reneg_ok -eq 1 ] && [ $secreg -eq 1 ]; then
|
|
pr_greenln "not vulnerable (OK)"
|
|
return 0
|
|
fi
|
|
if [ $reneg_ok -eq 1 ] ; then # 1,0
|
|
pr_litegreenln "got an error from the server while renegotiating on client: should be ok ($reneg_ok,$secreg)"
|
|
return 0
|
|
fi
|
|
pr_litegreenln "Patched Server detected ($reneg_ok,$secreg), probably ok" # 0,1
|
|
return 0
|
|
}
|
|
|
|
crime() {
|
|
# in a nutshell: don't offer TLS/SPDY compression on the server side
|
|
#
|
|
# This tests for CRIME Vulnerability (www.ekoparty.org/2012/juliano-rizzo.php) on HTTPS, not SPDY (yet)
|
|
# Please note that it is an attack where you need client side control, so in regular situations this
|
|
# means anyway "game over", w/wo CRIME
|
|
# www.h-online.com/security/news/item/Vulnerability-in-SSL-encryption-is-barely-exploitable-1708604.html
|
|
#
|
|
|
|
ADDCMD=""
|
|
case "$OSSL_VER" in
|
|
# =< 0.9.7 was weeded out before
|
|
0.9.8)
|
|
ADDCMD="-no_ssl2" ;;
|
|
0.9.9*|1.0*)
|
|
;;
|
|
esac
|
|
|
|
pr_bold " CRIME, TLS " ; out "(CVE-2012-4929) "
|
|
|
|
# first we need to test whether OpenSSL binary has zlib support
|
|
$OPENSSL zlib -e -a -in /dev/stdin &>/dev/stdout </dev/null | grep -q zlib
|
|
if [ $? -eq 0 ]; then
|
|
pr_magentaln "Local Problem: Your $OPENSSL lacks zlib support"
|
|
return 0 #FIXME
|
|
fi
|
|
|
|
STR=`$OPENSSL s_client $ADDCMD $STARTTLS -connect $NODEIP:$PORT $SNI 2>&1 </dev/null | grep Compression `
|
|
if echo $STR | grep -q NONE >/dev/null; then
|
|
pr_green "not vulnerable (OK)"
|
|
[[ $SERVICE == "HTTP" ]] || out " (not using HTTP anyway)"
|
|
ret=0
|
|
else
|
|
if [[ $SERVICE == "HTTP" ]]; then
|
|
pr_red "IS vulnerable (NOT ok)"
|
|
else
|
|
pr_brown "IS vulnerable" ; out ", but not using HTTP: probably no exploit known"
|
|
fi
|
|
ret=1
|
|
fi
|
|
# not clear whether this is a protocol != HTTP as one needs to have the ability to modify the
|
|
# compression input which is done via javascript in the context of HTTP
|
|
outln
|
|
|
|
# this needs to be re-done i order to remove the redundant check for spdy
|
|
|
|
# weed out starttls, spdy-crime is a web thingy
|
|
# if [ "x$STARTTLS" != "x" ]; then
|
|
# echo
|
|
# return $ret
|
|
# fi
|
|
|
|
# weed out non-webports, spdy-crime is a web thingy. there's a catch thoug, you see it?
|
|
# case $PORT in
|
|
# 25|465|587|80|110|143|993|995|21)
|
|
# echo
|
|
# return $ret
|
|
# esac
|
|
|
|
# $OPENSSL s_client help 2>&1 | grep -qw nextprotoneg
|
|
# if [ $? -eq 0 ]; then
|
|
# $OPENSSL s_client -host $NODE -port $PORT -nextprotoneg $NPN_PROTOs $SNI </dev/null 2>/dev/null >$TMPFILE
|
|
# if [ $? -eq 0 ]; then
|
|
# echo
|
|
# pr_bold "CRIME Vulnerability, SPDY \c" ; outln "(CVE-2012-4929): \c"
|
|
|
|
# STR=`grep Compression $TMPFILE `
|
|
# if echo $STR | grep -q NONE >/dev/null; then
|
|
# pr_green "not vulnerable (OK)"
|
|
# ret=`expr $ret + 0`
|
|
# else
|
|
# pr_red "IS vulnerable (NOT ok)"
|
|
# ret=`expr $ret + 1`
|
|
# fi
|
|
# fi
|
|
# fi
|
|
[ $VERBERR -eq 0 ] && outln "$STR"
|
|
#echo
|
|
return $ret
|
|
}
|
|
|
|
|
|
# Browser Exploit Against SSL/TLS
|
|
beast(){
|
|
shopt -s lastpipe # otherwise it's more tricky to access variables in a while loop
|
|
local hexcode dash cbc_cipher sslvers kx auth enc mac export
|
|
local detected_proto
|
|
local detected_cbc_cipher=""
|
|
local higher_proto_supported=""
|
|
local -i ret=0
|
|
local spaces=" "
|
|
#in a nutshell: don't use CBC Ciphers in SSLv3 TLSv1.0
|
|
|
|
pr_bold " BEAST"; out " (CVE-2011-3389) "
|
|
|
|
# 2) test handfull of common CBC ciphers
|
|
for proto in ssl3 tls1; do
|
|
$OPENSSL s_client -"$proto" $STARTTLS -connect $NODEIP:$PORT $SNI >$TMPFILE 2>/dev/null </dev/null
|
|
if [ $? -ne 0 ]; then
|
|
continue # protocol no supported, so we do not need to check each cipher with that protocol
|
|
fi
|
|
$OPENSSL ciphers -V 'ALL:eNULL' | grep CBC | while read hexcode dash cbc_cipher sslvers kx auth enc mac export ; do
|
|
$OPENSSL s_client -cipher "$cbc_cipher" -"$proto" $STARTTLS -connect $NODEIP:$PORT $SNI >$TMPFILE 2>/dev/null </dev/null
|
|
#normalize_ciphercode $hexcode
|
|
#neat_list $HEXC $ciph $kx $enc | strings | grep -wai "$arg"
|
|
if [ $? -eq 0 ]; then
|
|
detected_cbc_cipher="$detected_cbc_cipher ""$(grep -w "Cipher" $TMPFILE | egrep -vw "New|is" | sed -e 's/^.*Cipher.*://' -e 's/ //g')"
|
|
fi
|
|
done
|
|
#detected_cbc_cipher=`echo $detected_cbc_cipher | sed 's/ //g'`
|
|
if [ -z "$detected_cbc_cipher" ]; then
|
|
pr_litegreenln "no CBC ciphers for $(echo $proto | tr '[a-z]' '[A-Z]') (OK)"
|
|
else
|
|
detected_cbc_cipher=$(echo "$detected_cbc_cipher" | sed -e 's/ /\n '"${spaces}"'/9' -e 's/ /\n '"${spaces}"'/6' -e 's/ /\n '"${spaces}"'/3')
|
|
[ $ret -eq 1 ] && out "$spaces"
|
|
out "$(echo $proto | tr '[a-z]' '[A-Z]'):"; pr_brownln "$detected_cbc_cipher"
|
|
ret=1
|
|
detected_cbc_cipher=""
|
|
fi
|
|
done
|
|
|
|
# 2) support for TLS 1.1+1.2?
|
|
for proto in tls1_1 tls1_2; do
|
|
$OPENSSL s_client -state -"$proto" $STARTTLS -connect $NODEIP:$PORT $SNI 2>/dev/null >$TMPFILE </dev/null
|
|
if [ $? -eq 0 ]; then
|
|
higher_proto_supported="$higher_proto_supported ""$(grep -w "Protocol" $TMPFILE | sed -e 's/^.*Protocol .*://' -e 's/ //g')"
|
|
fi
|
|
done
|
|
if [ $ret -eq 1 ] ; then
|
|
[ ! -z "$higher_proto_supported" ] && outln "$spaces but also supports higher protocols (possible mitigation):$higher_proto_supported"
|
|
fi
|
|
|
|
# printf "For a full individual test of each CBC cipher suites support by your $OPENSSL run \"$0 -x CBC $NODE\"\n"
|
|
|
|
shopt -u lastpipe # othwise for some reason it segfaults
|
|
return $ret
|
|
}
|
|
|
|
youknowwho() {
|
|
# CVE-2013-2566,
|
|
# NOT FIXME as there's no code: http://www.isg.rhul.ac.uk/tls/
|
|
# http://blog.cryptographyengineering.com/2013/03/attack-of-week-rc4-is-kind-of-broken-in.html
|
|
return 0
|
|
# in a nutshell: don't use RC4, really not!
|
|
}
|
|
|
|
old_fart() {
|
|
pr_magentaln "Your $OPENSSL $OSSL_VER version is an old fart..."
|
|
pr_magentaln "Get the precompiled bins, it doesn\'t make much sense to proceed"
|
|
exit 3
|
|
}
|
|
|
|
find_openssl_binary() {
|
|
# 0. check environment variable whether it's executable
|
|
if [ ! -z "$OPENSSL" ] && [ ! -x "$OPENSSL" ]; then
|
|
pr_redln "\ncannot execute specified ($OPENSSL) openssl binary."
|
|
outln "continuing ..."
|
|
fi
|
|
if [ -x "$OPENSSL" ]; then
|
|
# 1. check environment variable
|
|
:
|
|
else
|
|
# 2. otherwise try openssl in path of testssl.sh
|
|
OPENSSL=$RUN_DIR/openssl
|
|
if [ ! -x $OPENSSL ] ; then
|
|
# 3. with arch suffix
|
|
OPENSSL=$RUN_DIR/openssl.`uname -m`
|
|
if [ ! -x $OPENSSL ] ; then
|
|
#4. finally: didn't fiond anything, so we take the one propably from system:
|
|
OPENSSL=`which openssl`
|
|
fi
|
|
fi
|
|
fi
|
|
|
|
# http://www.openssl.org/news/openssl-notes.html
|
|
OSSL_VER=`$OPENSSL version | awk -F' ' '{ print $2 }'`
|
|
OSSL_VER_MAJOR=`echo "$OSSL_VER" | sed 's/\..*$//'`
|
|
OSSL_VER_MINOR=`echo "$OSSL_VER" | sed -e 's/^.\.//' | sed 's/\..*.//'`
|
|
OSSL_VER_APPENDIX=`echo "$OSSL_VER" | tr -d '[0-9.]'`
|
|
OSSL_VER_PLATFORM=`$OPENSSL version -p | sed 's/^platform: //'`
|
|
OSSL_BUILD_DATE=`$OPENSSL version -a | grep '^built' | sed -e 's/built on//' -e 's/: ... //' -e 's/: //' -e 's/ UTC//' -e 's/ +0000//' -e 's/.000000000//'`
|
|
echo $OSSL_BUILD_DATE | grep -q "not available" && OSSL_BUILD_DATE=""
|
|
export OPENSSL OSSL_VER OSSL_BUILD_DATE OSSL_VER_PLATFORM
|
|
case "$OSSL_VER" in
|
|
0.9.7*|0.9.6*|0.9.5*)
|
|
# 0.9.5a was latest in 0.9.5 an released 2000/4/1, that'll NOT suffice for this test
|
|
old_fart ;;
|
|
0.9.8)
|
|
case $OSSL_VER_APPENDIX in
|
|
a|b|c|d|e) old_fart;; # no SNI!
|
|
# other than that we leave this for MacOSX but it's a pain and no guarantees!
|
|
esac
|
|
;;
|
|
esac
|
|
if [ $OSSL_VER_MAJOR -lt 1 ]; then ## mm: Patch for libressl
|
|
outln
|
|
pr_magentaln " ¡¡¡ <Enter> at your own risk !!! $OPENSSL is way too old (< version 1.0)"
|
|
outln " Proceeding may likely result in false negatives or positives\n"
|
|
read a
|
|
fi
|
|
return 0
|
|
}
|
|
|
|
|
|
starttls() {
|
|
protocol=`echo "$1" | sed 's/s$//'` # strip trailing s in ftp(s), smtp(s), pop3(s), imap(s), ldap(s), telnet(s)
|
|
case "$1" in
|
|
ftp|smtp|pop3|imap|xmpp|telnet|ldap)
|
|
outln " Trying STARTTLS via $(echo $protocol| tr '[a-z]' '[A-Z]')\n"
|
|
$OPENSSL s_client -connect $NODEIP:$PORT $SNI -starttls $protocol </dev/null >$TMPFILE 2>&1
|
|
ret=$?
|
|
if [ $ret -ne 0 ]; then
|
|
pr_bold "Problem: $OPENSSL couldn't estabilish STARTTLS via $protocol"; outln
|
|
cat $TMPFILE
|
|
return 3
|
|
else
|
|
# now, this is lame: normally this should be handled by top level. Then I need to do proper parsing
|
|
# of the cmdline e.g. with getopts.
|
|
STARTTLS="-starttls $protocol"
|
|
export STARTTLS
|
|
runprotocols ; ret=`expr $? + $ret`
|
|
run_std_cipherlists ; ret=`expr $? + $ret`
|
|
server_preference ; ret=`expr $? + $ret`
|
|
server_defaults ; ret=`expr $? + $ret`
|
|
|
|
outln; pr_blue "--> Testing specific vulnerabilities" ; outln "\n"
|
|
#FIXME: heartbleed + CCS won't work this way yet
|
|
# heartbleed ; ret=`expr $? + $ret`
|
|
# ccs_injection ; ret=`expr $? + $ret`
|
|
renego ; ret=`expr $? + $ret`
|
|
crime ; ret=`expr $? + $ret`
|
|
poodle ; ret=`expr $? + $ret`
|
|
beast ; ret=`expr $? + $ret`
|
|
|
|
rc4 ; ret=`expr $? + $ret`
|
|
pfs ; ret=`expr $? + $ret`
|
|
|
|
outln
|
|
#cipher_per_proto ; ret=`expr $? + $ret`
|
|
allciphers ; ret=`expr $? + $ret`
|
|
fi
|
|
;;
|
|
*) pr_litemagentaln "momentarily only ftp, smtp, pop3, imap, xmpp and telnet, ldap allowed" >&2
|
|
ret=2
|
|
;;
|
|
esac
|
|
|
|
return $ret
|
|
}
|
|
|
|
|
|
help() {
|
|
PRG=`basename $0`
|
|
cat << EOF
|
|
|
|
$PRG <options>
|
|
|
|
<-h|--help> what you're looking at
|
|
<-b|--banner> displays banner + version
|
|
<-v|--version> same as above
|
|
<-V|--local> pretty print all local ciphers
|
|
<-V|--local> pattern what local cipher with <pattern> is a/v?
|
|
|
|
$PRG <options> URI
|
|
|
|
<-e|--each-cipher> check each local ciphers remotely
|
|
<-E|-ee|--cipher-per-proto> check those per protocol
|
|
<-f|--ciphers> check cipher suites
|
|
<-p|--protocols> check TLS/SSL protocols only
|
|
<-S|--server_defaults> displays the servers default picks and certificate info
|
|
<-P|--preference> displays the servers picks: protocol+cipher
|
|
<-y|--spdy> checks for SPDY/NPN
|
|
<-x|--single-ciphers-test> <pattern> tests matched <pattern> of cipher
|
|
<-B|--heartbleed> tests only for heartbleed vulnerability
|
|
<-I|--ccs|--ccs_injection> tests only for CCS injection vulnerability
|
|
<-R|--renegotiation> tests only for renegotiation vulnerability
|
|
<-C|--compression|--crime> tests only for CRIME vulnerability
|
|
<-T|--breach> tests only for BREACH vulnerability
|
|
<-0|--poodle> tests only for POODLE vulnerability
|
|
<-A|--beast> tests only for BEAST vulnerability
|
|
<-s|--pfs|--fs|--nsa> checks (perfect) forward secrecy settings
|
|
<-4|--rc4|--appelbaum> which RC4 ciphers are being offered?
|
|
<-H|--header|--headers> check for HSTS, HPKP and server/application banner string
|
|
|
|
<-t|--starttls> protocol does a default run against a STARTTLS enabled service
|
|
|
|
|
|
partly mandatory parameters:
|
|
|
|
URI host|host:port|URL|URL:port (port 443 is assumed unless otherwise specified)
|
|
pattern an ignore case word pattern of cipher hexcode or any other string in the name, kx or bits
|
|
protocol is one of ftp,smtp,pop3,imap,xmpp,telnet,ldap (for the latter two you need e.g. the supplied openssl)
|
|
|
|
|
|
EOF
|
|
return $?
|
|
}
|
|
|
|
|
|
mybanner() {
|
|
me=`basename $0`
|
|
osslver=`$OPENSSL version`
|
|
osslpath=`which $OPENSSL`
|
|
nr_ciphers=`$OPENSSL ciphers 'ALL:COMPLEMENTOFALL:@STRENGTH' | sed 's/:/ /g' | wc -w`
|
|
hn=`hostname`
|
|
#poor man's ident (nowadays ident not neccessarily installed)
|
|
idtag=`grep '\$Id' $0 | grep -w Exp | grep -v grep | sed -e 's/^# //' -e 's/\$ $/\$/'`
|
|
[ "$COLOR" -ne 0 ] && idtag="\033[1;30m$idtag\033[m\033[1m"
|
|
bb=`cat <<EOF
|
|
|
|
#########################################################
|
|
$me v$VERSION ($SWURL)
|
|
($idtag)
|
|
|
|
This program is free software. Redistribution +
|
|
modification under GPLv2 is permitted.
|
|
USAGE w/o ANY WARRANTY. USE IT AT YOUR OWN RISK!
|
|
|
|
Note: you can only check the server with what is
|
|
available (ciphers/protocols) locally on your machine!
|
|
#########################################################
|
|
EOF
|
|
`
|
|
pr_bold "$bb"
|
|
outln "\n"
|
|
outln " Using \"$osslver\" [~$nr_ciphers ciphers] on
|
|
$hn:$osslpath
|
|
(built: \"$OSSL_BUILD_DATE\", platform: \"$OSSL_VER_PLATFORM\")\n"
|
|
|
|
}
|
|
|
|
maketempf () {
|
|
TEMPDIR=`mktemp -d /tmp/ssltester.XXXXXX` || exit 6
|
|
TMPFILE=$TEMPDIR/tempfile.txt || exit 6
|
|
HOSTCERT=$TEMPDIR/host_cerificate.txt
|
|
HEADERFILE=$TEMPDIR/http_header.txt
|
|
HEADERFILE_BREACH=$TEMPDIR/http_header_breach.txt
|
|
LOGFILE=$TEMPDIR/logfile.txt
|
|
if [ $DEBUG -ne 0 ]; then
|
|
cat >$TEMPDIR/environment.txt << EOF
|
|
|
|
PID: $$
|
|
bash version: ${BASH_VERSINFO[0]}.${BASH_VERSINFO[1]}.${BASH_VERSINFO[2]}
|
|
status: ${BASH_VERSINFO[4]}
|
|
machine: ${BASH_VERSINFO[5]}
|
|
shellopts: $SHELLOPTS
|
|
|
|
"$osslver" [$nr_ciphers ciphers] on $hn:$osslpath
|
|
built: "$OSSL_BUILD_DATE", platform: "$OSSL_VER_PLATFORM"
|
|
$idtag
|
|
|
|
PATH: $PATH
|
|
RUN_DIR: $RUN_DIR
|
|
|
|
CAPATH: $CAPATH
|
|
ECHO: $ECHO
|
|
COLOR: $COLOR
|
|
SHOW_LOC_CIPH: $SHOW_LOC_CIPH
|
|
VERBERR: $VERBERR
|
|
LOCERR: $LOCERR
|
|
SHOW_EACH_C: $SHOW_EACH_C
|
|
SNEAKY: $SNEAKY
|
|
DEBUG: $DEBUG
|
|
|
|
HSTS_MIN: $HSTS_MIN
|
|
HPKP_MIN: $HPKP_MIN
|
|
MAX_WAITSOCK: $MAX_WAITSOCK
|
|
HEADER_MAXSLEEP: $HEADER_MAXSLEEP
|
|
CLIENT_MIN_PFS: $CLIENT_MIN_PFS
|
|
DAYS2WARN1: $DAYS2WARN1
|
|
DAYS2WARN2: $DAYS2WARN2
|
|
|
|
EOF
|
|
$OPENSSL ciphers -V $1 &>$TEMPDIR/all_local_ciphers.txt
|
|
fi
|
|
|
|
|
|
}
|
|
|
|
cleanup () {
|
|
if [[ "$DEBUG" -ge 1 ]] ; then
|
|
outln
|
|
pr_underline "DEBUG (level $DEBUG): see files in $TEMPDIR"
|
|
else
|
|
[ -d "$TEMPDIR" ] && rm -rf ${TEMPDIR};
|
|
fi
|
|
outln
|
|
[ -n "$NODE" ] && datebanner "Done" # only if running against server
|
|
outln
|
|
}
|
|
|
|
# for now only GOST engine
|
|
initialize_engine(){
|
|
if uname -s | grep -q BSD || ! $OPENSSL engine gost -vvvv -t -c >/dev/null 2>&1; then
|
|
pr_litemagenta "No engine or GOST support via engine with your $OPENSSL"; outln "\n"
|
|
return 1
|
|
elif echo $osslver | grep -q LibreSSL; then
|
|
return 1
|
|
else
|
|
if [ ! -z "$OPENSSL_CONF" ]; then
|
|
pr_litemagenta "For now I am providing the config file in to have GOST support"; outln
|
|
else
|
|
[ -z "$TEMPDIR" ] && maketempf
|
|
OPENSSL_CONF=$TEMPDIR/gost.conf || exit 6
|
|
# see https://www.mail-archive.com/openssl-users@openssl.org/msg65395.html
|
|
cat >$OPENSSL_CONF << EOF
|
|
openssl_conf = openssl_def
|
|
|
|
[ openssl_def ]
|
|
engines = engine_section
|
|
|
|
[ engine_section ]
|
|
gost = gost_section
|
|
|
|
[ gost_section ]
|
|
engine_id = gost
|
|
default_algorithms = ALL
|
|
CRYPT_PARAMS = id-Gost28147-89-CryptoPro-A-ParamSet
|
|
|
|
EOF
|
|
export OPENSSL_CONF
|
|
fi
|
|
fi
|
|
return 0
|
|
}
|
|
|
|
|
|
ignore_no_or_lame() {
|
|
[ "$WARNINGS" = "off" -o "$WARNINGS" = "false" ] && return 0
|
|
[ "$WARNINGS" = "batch" ] && return 1
|
|
pr_magenta "$1 "
|
|
read a
|
|
case $a in
|
|
Y|y|Yes|YES|yes)
|
|
return 0;;
|
|
default)
|
|
;;
|
|
esac
|
|
return 1
|
|
}
|
|
|
|
|
|
parse_hn_port() {
|
|
PORT=443 # unless otherwise auto-determined, see below
|
|
NODE="$1"
|
|
|
|
# strip "https" and trailing urlpath supposed it was supplied additionally
|
|
echo $NODE | grep -q 'https://' && NODE=`echo $NODE | sed -e 's/https\:\/\///'`
|
|
|
|
# strip trailing urlpath
|
|
NODE=`echo $NODE | sed -e 's/\/.*$//'`
|
|
|
|
# was the address supplied like [AA:BB:CC::]:port ?
|
|
if echo $NODE | grep -q ']' ; then
|
|
tmp_port=`printf $NODE | sed 's/\[.*\]//' | sed 's/://'`
|
|
# determine v6 port, supposed it was supplied additionally
|
|
if [ ! -z "$tmp_port" ] ; then
|
|
PORT=$tmp_port
|
|
NODE=`printf $NODE | sed "s/:$PORT//"`
|
|
fi
|
|
NODE=`printf $NODE | sed -e 's/\[//' -e 's/\]//'`
|
|
else
|
|
# determine v4 port, supposed it was supplied additionally
|
|
echo $NODE | grep -q ':' && PORT=`echo $NODE | sed 's/^.*\://'` && NODE=`echo $NODE | sed 's/\:.*$//'`
|
|
fi
|
|
SNI="-servername $NODE"
|
|
|
|
URL_PATH=`echo $1 | sed 's/.*'"${NODE}"'//'` # remove protocol and node part
|
|
URL_PATH=`echo $URL_PATH | sed 's/\/\//\//g'` # we rather want // -> /
|
|
|
|
# now get NODEIP
|
|
get_dns_entries
|
|
|
|
# check if we can connect to port
|
|
if ! fd_socket; then
|
|
ignore_no_or_lame "Ignore? "
|
|
[ $? -ne 0 ] && exit 3
|
|
fi
|
|
close_socket
|
|
|
|
if [[ -z "$2" ]] ; then # for starttls we don't want this check
|
|
# is ssl service listening on port? FIXME: better with bash on IP!
|
|
$OPENSSL s_client -connect "$NODE:$PORT" $SNI </dev/null >/dev/null 2>&1
|
|
if [ $? -ne 0 ]; then
|
|
pr_boldln "$NODE:$PORT doesn't seem a TLS/SSL enabled server or it requires a certificate";
|
|
ignore_no_or_lame "Proceed (note that the results might look ok but they are nonsense) ? "
|
|
[ $? -ne 0 ] && exit 3
|
|
fi
|
|
fi
|
|
|
|
datebanner "Testing"
|
|
[[ -z "$2" ]] && runs_HTTP # for starttls we don't check the protocol as it is supplied on the cmd line
|
|
initialize_engine
|
|
}
|
|
|
|
|
|
get_dns_entries() {
|
|
test4iponly=`printf $NODE | sed -e 's/[0-9]//g' -e 's/\.//g'`
|
|
if [ "x$test4iponly" == "x" ]; then # only an IPv4 address was supplied
|
|
IP4=$NODE
|
|
SNI="" # override this as we test the IP only
|
|
else
|
|
# for security testing sometimes we have local host entries, so getent is preferred
|
|
if which getent &>/dev/null; then
|
|
getent ahostsv4 $NODE 2>/dev/null >/dev/null
|
|
if [ $? -eq 0 ]; then
|
|
# Linux:
|
|
IP4=`getent ahostsv4 $NODE 2>/dev/null | grep -v ':' | grep STREAM | awk '{ print $1}' | uniq`
|
|
#else
|
|
# IP4=`getent hosts $NODE 2>/dev/null | grep -v ':' | awk '{ print $1}' | uniq`
|
|
#FIXME: FreeBSD returns only one entry
|
|
fi
|
|
fi
|
|
if [ -z "$IP4" ] ; then # getent returned nothing:
|
|
IP4=`host -t a $NODE 2>/dev/null | grep -v alias | sed 's/^.*address //'`
|
|
if echo "$IP4" | grep -q NXDOMAIN || echo "$IP4" | grep -q "no A record"; then
|
|
pr_magenta "Can't proceed: No IP address for \"$NODE\" available"; outln "\n"
|
|
exit 1
|
|
fi
|
|
fi
|
|
# MSYS2 has no host or getent, so we do this
|
|
if [ -z "$IP4" ] ; then
|
|
IP4=`nslookup $NODE 2>/dev/null | grep -A10 Name | grep -v Name | sed 's/^Address.*: .//'`
|
|
fi
|
|
|
|
# for IPv6 we often get this :ffff:IPV4 address which isn't of any use
|
|
#which getent 2>&1 >/dev/null && IP6=`getent ahostsv6 $NODE | grep $NODE | awk '{ print $1}' | grep -v '::ffff' | uniq`
|
|
if [ -z "$IP6" ] ; then
|
|
if host -t aaaa $NODE &>/dev/null ; then
|
|
IP6=`host -t aaaa $NODE | grep -v alias | grep -v "no AAAA record" | sed 's/^.*address //'`
|
|
else
|
|
IP6=""
|
|
fi
|
|
fi
|
|
# MSYS2 has no host or getent, so we do this
|
|
if [ -z "$IP6" ] ; then
|
|
IP6=`nslookup -type=aaaa $NODE 2>/dev/null | grep -A10 Name | grep -v Name | sed 's/^Address.*: .//'`
|
|
fi
|
|
|
|
fi # test4iponly
|
|
|
|
IPADDRs=`echo $IP4`
|
|
[ ! -z "$IP6" ] && IPADDRs=`echo $IP4`" "`echo $IP6`
|
|
|
|
# FIXME: we could/should test more than one IPv4 addresses if available, same IPv6. For now we test the first IPv4:
|
|
NODEIP=`echo "$IP4" | head -1`
|
|
|
|
# we can't do this as some checks and even openssl are not yet IPv6 safe. BTW: bash sockets do IPv6 transparently!
|
|
#NODEIP=`echo "$IP6" | head -1`
|
|
rDNS=`host -t PTR $NODEIP 2>/dev/null | grep -v "is an alias for" | sed -e 's/^.*pointer //' -e 's/\.$//'`
|
|
echo $rDNS | grep -q NXDOMAIN && rDNS=" - "
|
|
}
|
|
|
|
|
|
display_rdns_etc() {
|
|
if [ `printf "$IPADDRs" | wc -w` -gt 1 ]; then
|
|
out " further IP addresses: "
|
|
for i in $IPADDRs; do
|
|
[ "$i" == "$NODEIP" ] && continue
|
|
out " $i"
|
|
done
|
|
outln
|
|
fi
|
|
if [ -n "$rDNS" ] ; then
|
|
printf " %-23s %s\n" "rDNS ($NODEIP):" "$rDNS"
|
|
fi
|
|
}
|
|
|
|
datebanner() {
|
|
tojour=`date +%F`" "`date +%R`
|
|
outln
|
|
pr_reverse "$1 now ($tojour) ---> $NODEIP:$PORT ($NODE) <---"; outln "\n"
|
|
if [ "$1" = "Testing" ] ; then
|
|
display_rdns_etc
|
|
fi
|
|
outln
|
|
}
|
|
|
|
|
|
|
|
################# main: #################
|
|
|
|
|
|
case "$1" in
|
|
-h|--help|-help|"")
|
|
help
|
|
exit $? ;;
|
|
esac
|
|
|
|
# auto determine where bins are
|
|
find_openssl_binary
|
|
mybanner
|
|
|
|
#PATH_TO_TESTSSL="$(cd "${0%/*}" 2>/dev/null; echo "$PWD"/"${0##*/}")"
|
|
PATH_TO_TESTSSL=`readlink "$BASH_SOURCE"` 2>/dev/null
|
|
[ -z $PATH_TO_TESTSSL ] && PATH_TO_TESTSSL="."
|
|
#
|
|
# next file provides a pair "keycode/ RFC style name", see the RFCs, cipher(1) and
|
|
# https://www.carbonwind.net/TLS_Cipher_Suites_Project/tls_ssl_cipher_suites_simple_table_all.htm
|
|
[ -r "$(dirname $PATH_TO_TESTSSL)/mapping-rfc.txt" ] && MAP_RFC_FNAME=`dirname $PATH_TO_TESTSSL`"/mapping-rfc.txt"
|
|
|
|
|
|
#FIXME: I know this sucks and getoptS is better
|
|
|
|
case "$1" in
|
|
-b|--banner|-banner|-v|--version|-version)
|
|
exit 0
|
|
;;
|
|
-V|--local)
|
|
initialize_engine # GOST support
|
|
prettyprint_local "$2"
|
|
exit $? ;;
|
|
-x|--single-ciphers-test)
|
|
maketempf
|
|
parse_hn_port "$3"
|
|
test_just_one $2
|
|
exit $? ;;
|
|
-t|--starttls)
|
|
maketempf
|
|
parse_hn_port "$3" "$2" # here comes protocol to signal starttls and hostname:port
|
|
starttls "$2" # protocol
|
|
exit $? ;;
|
|
-e|--each-cipher)
|
|
maketempf
|
|
parse_hn_port "$2"
|
|
allciphers
|
|
exit $? ;;
|
|
-E|-ee|--cipher-per-proto)
|
|
maketempf
|
|
parse_hn_port "$2"
|
|
cipher_per_proto
|
|
exit $? ;;
|
|
-p|--protocols)
|
|
maketempf
|
|
parse_hn_port "$2"
|
|
runprotocols ; ret=$?
|
|
spdy ; ret=`expr $? + $ret`
|
|
exit $ret ;;
|
|
-f|--ciphers)
|
|
maketempf
|
|
parse_hn_port "$2"
|
|
run_std_cipherlists
|
|
exit $? ;;
|
|
-S|--server_defaults)
|
|
maketempf
|
|
parse_hn_port "$2"
|
|
server_defaults
|
|
exit $? ;;
|
|
-P|--server_preference)
|
|
maketempf
|
|
parse_hn_port "$2"
|
|
server_preference
|
|
exit $? ;;
|
|
-y|--spdy|--google)
|
|
maketempf
|
|
parse_hn_port "$2"
|
|
spdy
|
|
exit $? ;;
|
|
-B|--heartbleet)
|
|
maketempf
|
|
parse_hn_port "$2"
|
|
outln; pr_blue "--> Testing for heartbleed vulnerability"; outln "\n"
|
|
heartbleed
|
|
exit $? ;;
|
|
-I|--ccs|--ccs_injection)
|
|
maketempf
|
|
parse_hn_port "$2"
|
|
outln; pr_blue "--> Testing for CCS injection vulnerability"; outln "\n"
|
|
ccs_injection
|
|
exit $? ;;
|
|
-R|--renegotiation)
|
|
maketempf
|
|
parse_hn_port "$2"
|
|
outln; pr_blue "--> Testing for Renegotiation vulnerability"; outln "\n"
|
|
renego
|
|
exit $? ;;
|
|
-C|--compression|--crime)
|
|
maketempf
|
|
parse_hn_port "$2"
|
|
outln; pr_blue "--> Testing for CRIME vulnerability"; outln "\n"
|
|
crime
|
|
exit $? ;;
|
|
-T|--breach)
|
|
maketempf
|
|
parse_hn_port "$2"
|
|
outln; pr_blue "--> Testing for BREACH (HTTP compression) vulnerability"; outln "\n"
|
|
if [[ $SERVICE != "HTTP" ]] ; then
|
|
pr_litemagentaln " Wrong usage: You're not targetting a HTTP service"
|
|
ret=2
|
|
else
|
|
breach "$URL_PATH"
|
|
ret=$?
|
|
fi
|
|
ret=`expr $? + $ret`
|
|
exit $ret ;;
|
|
-0|--poodle)
|
|
maketempf
|
|
parse_hn_port "$2"
|
|
outln; pr_blue "--> Testing for POODLE (Padding Oracle On Downgraded Legacy Encryption) vulnerability"; outln "\n"
|
|
poodle
|
|
exit $? ;;
|
|
-4|--rc4|--appelbaum)
|
|
maketempf
|
|
parse_hn_port "$2"
|
|
rc4
|
|
exit $? ;;
|
|
-s|--pfs|--fs|--nsa)
|
|
maketempf
|
|
parse_hn_port "$2"
|
|
pfs
|
|
exit $? ;;
|
|
-A|--beast)
|
|
maketempf
|
|
parse_hn_port "$2"
|
|
beast
|
|
exit $? ;;
|
|
-H|--header|--headers)
|
|
maketempf
|
|
parse_hn_port "$2"
|
|
outln; pr_blue "--> Testing HTTP Header response"; outln "\n"
|
|
if [[ $SERVICE == "HTTP" ]]; then
|
|
hsts "$URL_PATH"
|
|
hpkp "$URL_PATH"
|
|
ret=$?
|
|
serverbanner "$URL_PATH"
|
|
ret=`expr $? + $ret`
|
|
applicationbanner "$URL_PATH"
|
|
ret=`expr $? + $ret`
|
|
cookieflags "$URL_PATH"
|
|
ret=`expr $? + $ret`
|
|
else
|
|
pr_litemagentaln " Wrong usage: You're not targetting a HTTP service"
|
|
ret=2
|
|
fi
|
|
exit $ret ;;
|
|
-*) help ;; # wrong argument
|
|
*)
|
|
maketempf
|
|
parse_hn_port "$1"
|
|
|
|
outln
|
|
runprotocols ; ret=$?
|
|
spdy ; ret=`expr $? + $ret`
|
|
run_std_cipherlists ; ret=`expr $? + $ret`
|
|
server_preference ; ret=`expr $? + $ret`
|
|
server_defaults ; ret=`expr $? + $ret`
|
|
|
|
if [[ $SERVICE == "HTTP" ]]; then
|
|
outln; pr_blue "--> Testing HTTP Header response"
|
|
outln "\n"
|
|
hsts "$URL_PATH" ; ret=`expr $? + $ret`
|
|
hpkp "$URL_PATH" ; ret=`expr $? + $ret`
|
|
serverbanner "$URL_PATH" ; ret=`expr $? + $ret`
|
|
applicationbanner "$URL_PATH" ; ret=`expr $? + $ret`
|
|
cookieflags "$URL_PATH" ; ret=`expr $? + $ret`
|
|
fi
|
|
|
|
outln; pr_blue "--> Testing specific vulnerabilities"
|
|
outln "\n"
|
|
heartbleed ; ret=`expr $? + $ret`
|
|
ccs_injection ; ret=`expr $? + $ret`
|
|
renego ; ret=`expr $? + $ret`
|
|
crime ; ret=`expr $? + $ret`
|
|
[[ $SERVICE == "HTTP" ]] && breach "$URL_PATH" ; ret=`expr $? + $ret`
|
|
poodle ; ret=`expr $? + $ret`
|
|
beast ; ret=`expr $? + $ret`
|
|
|
|
rc4 ; ret=`expr $? + $ret`
|
|
pfs ; ret=`expr $? + $ret`
|
|
exit $ret ;;
|
|
esac
|
|
|
|
# $Id: testssl.sh,v 1.181 2015/02/04 08:48:33 dirkw Exp $
|
|
# vim:ts=5:sw=5
|
|
|