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testssl.sh
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Add support for testing postgres protocol over TLS/SSL 

The Postgres protocol uses STARTTLS with a custom start packet. This
functionality is supported by openssl s_client in the current openssl
master branch but not yet in any released version.

This patch detects whether the given openssl binary supports postgres
and runs the default tests against a postgres server.

Example of no openssl support:

    ~/bin/testssl$ ./testssl.sh --quiet
    --openssl=/opt/openssl/openssl-1.1.0c/bin/openssl --starttls=postgres
    test.postgres.server.com:5432

     Start 2016-12-07 18:03:24    -->> ip.add.re.ss:5432
    (test.postgres.server.com:5432) <<--

    Fatal error: Your /opt/openssl/openssl-1.1.0c/bin/openssl does not
    support the "-starttls postgres" option

Example of openssl support:

    ~/bin/testssl$ ./testssl.sh --quiet
    --openssl=/opt/openssl/openssl-2016-12-07/bin/openssl --startt ls=postgres
    test.postgres.server.com:5432

     Start 2016-12-07 18:06:03    -->> ip.add.re.ss:5432
    (test.postgres.server.com:5432) <<--

     Service set:            STARTTLS via POSTGRES

     Testing protocols (via openssl, SSLv2 via sockets)

     SSLv2               not offered (OK)
     SSLv3               offered (NOT ok)
     TLS 1               offered
     TLS 1.1             offered
     TLS 1.2             offered (OK)
     SPDY/NPN            (SPDY is an HTTP protocol and thus not tested here)
     HTTP2/ALPN          (HTTP/2 is a HTTP protocol and thus not tested
    here)
    ...
This commit is contained in:
Steven Danneman 2016-12-08 10:54:44 -08:00
parent 72a96f64e4
commit 461f956603
1 changed files with 38 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

45
testssl.sh
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@ -226,6 +226,7 @@ HAS_SPDY=false
HAS_FALLBACK_SCSV=false
HAS_PROXY=false
HAS_XMPP=false
HAS_POSTGRES=false
ADD_RFC_STR="rfc" # display RFC ciphernames
PORT=443 # unless otherwise auto-determined, see below
NODE=""
@ -6227,6 +6228,16 @@ starttls_nntp_dialog() {
return $ret
}
starttls_postgres_dialog() {
debugme echo "=== starting postgres STARTTLS dialog ==="
local reINITTLS="\x00\x00\x00\x08\x04\xD2\x16\x2F"
starttls_just_send "${reINITTLS}" && debugme echo "initiated STARTTLS" &&
starttls_full_read '' '' 'S' && debugme echo "received ack for STARTTLS"
local ret=$?
debugme echo "=== finished postgres STARTTLS dialog with ${ret} ==="
return $ret
}
# arg for a fd doesn't work here
fd_socket() {
local jabber=""
@ -6301,6 +6312,9 @@ EOF
starttls_line "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'/>" "proceed"
# BTW: https://xmpp.net !
;;
postgres|postgress) # Postgres SQL, see http://www.postgresql.org/docs/devel/static/protocol-message-formats.html
starttls_postgres_dialog
;;
*) # we need to throw an error here -- otherwise testssl.sh treats the STARTTLS protocol as plain SSL/TLS which leads to FP
fatal "FIXME: STARTTLS protocol $STARTTLS_PROTOCOL is not yet supported" -4
esac
@ -9155,6 +9169,7 @@ test_openssl_suffix() {
find_openssl_binary() {
local s_client_has=$TEMPDIR/s_client_has.txt
local s_client_starttls_has=$TEMPDIR/s_client_starttls_has.txt
# 0. check environment variable whether it's executable
if [[ -n "$OPENSSL" ]] && [[ ! -x "$OPENSSL" ]]; then
@ -9211,6 +9226,8 @@ find_openssl_binary() {
$OPENSSL s_client -help 2>$s_client_has
$OPENSSL s_client -starttls foo 2>$s_client_starttls_has
grep -qw '\-alpn' $s_client_has && \
HAS_ALPN=true
@ -9226,6 +9243,9 @@ find_openssl_binary() {
grep -q '\-xmpp' $s_client_has && \
HAS_XMPP=true
grep -q 'postgres' $s_client_starttls_has && \
HAS_POSTGRES=true
if [[ "$OPENSSL_TIMEOUT" != "" ]]; then
if which timeout >&2 2>/dev/null ; then
# there are different "timeout". Check whether --preserve-status is supported
@ -9307,7 +9327,7 @@ help() {
"$PROG_NAME <options> URI", where <options> is:
-t, --starttls <protocol> does a default run against a STARTTLS enabled <protocol,
protocol is <ftp|smtp|pop3|imap|xmpp|telnet|ldap> (latter two require supplied openssl)
protocol is <ftp|smtp|pop3|imap|xmpp|telnet|ldap|postgres> (latter three require supplied openssl)
--xmpphost <to_domain> for STARTTLS enabled XMPP it supplies the XML stream to-'' domain -- sometimes needed
--mx <domain/host> tests MX records from high to low priority (STARTTLS, port 25)
--file <fname> mass testing option: Reads command lines from <fname>, one line per instance.
@ -9440,6 +9460,7 @@ HAS_ALPN: $HAS_ALPN
HAS_FALLBACK_SCSV: $HAS_FALLBACK_SCSV
HAS_PROXY: $HAS_PROXY
HAS_XMPP: $HAS_XMPP
HAS_POSTGRES: $HAS_POSTGRES
PATH: $PATH
PROG_NAME: $PROG_NAME
@ -10070,7 +10091,7 @@ determine_optimal_proto() {
}
# arg1: ftp smtp, pop3, imap, xmpp, telnet, ldap (maybe with trailing s)
# arg1: ftp smtp, pop3, imap, xmpp, telnet, ldap, postgres (maybe with trailing s)
determine_service() {
local ua
local protocol
@ -10097,9 +10118,13 @@ determine_service() {
service_detection $OPTIMAL_PROTO
else
# STARTTLS
protocol=${1%s} # strip trailing 's' in ftp(s), smtp(s), pop3(s), etc
if [[ "$1" == postgres ]]; then
protocol="postgres"
else
protocol=${1%s} # strip trailing 's' in ftp(s), smtp(s), pop3(s), etc
fi
case "$protocol" in
ftp|smtp|pop3|imap|xmpp|telnet|ldap)
ftp|smtp|pop3|imap|xmpp|telnet|ldap|postgres)
STARTTLS="-starttls $protocol"
SNI=""
if [[ "$protocol" == xmpp ]]; then
@ -10113,6 +10138,12 @@ determine_service() {
# see http://xmpp.org/rfcs/rfc3920.html
fi
fi
if [[ "$protocol" == postgres ]]; then
# Check if openssl version supports postgres.
if ! "$HAS_POSTGRES"; then
fatal "Your $OPENSSL does not support the \"-starttls postgres\" option" -5
fi
fi
$OPENSSL s_client -connect $NODEIP:$PORT $PROXY $BUGS $STARTTLS 2>$ERRFILE >$TMPFILE </dev/null
if [[ $? -ne 0 ]]; then
debugme cat $TMPFILE
@ -10126,7 +10157,7 @@ determine_service() {
outln
;;
*) outln
fatal "momentarily only ftp, smtp, pop3, imap, xmpp, telnet and ldap allowed" -4
fatal "momentarily only ftp, smtp, pop3, imap, xmpp, telnet, ldap and postgres allowed" -4
;;
esac
fi
@ -10438,8 +10469,8 @@ parse_cmd_line() {
STARTTLS_PROTOCOL=$(parse_opt_equal_sign "$1" "$2")
[[ $? -eq 0 ]] && shift
case $STARTTLS_PROTOCOL in
ftp|smtp|pop3|imap|xmpp|telnet|ldap|nntp) ;;
ftps|smtps|pop3s|imaps|xmpps|telnets|ldaps|nntps) ;;
ftp|smtp|pop3|imap|xmpp|telnet|ldap|nntp|postgres) ;;
ftps|smtps|pop3s|imaps|xmpps|telnets|ldaps|nntps|postgress) ;;
*) pr_magentaln "\nunrecognized STARTTLS protocol \"$1\", see help" 1>&2
help 1 ;;
esac