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Merge branch 'master' into more_sslv2_sslv3_fixes

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	testssl.sh
This commit is contained in:
David Cooper
2016-06-07 10:30:46 -04:00
parent c593675b8e 8ed6214b6f
commit 366025256b
2 changed files with 123 additions and 26 deletions
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4
bin/Readme.md
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@@ -1,4 +1,8 @@
**Note: new, improved binaries (1.0.2i, compiled from a snapshot from Peter Mosman's fork: https://github.com/drwetter/openssl) will come soon. Have a look @ https://testssl.sh/**
Binaries
========

145
testssl.sh
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@@ -151,6 +151,7 @@ JSONFILE=${JSONFILE:-""} # jsonfile if used
CSVFILE=${CSVFILE:-""} # csvfile if used
HAS_IPv6=${HAS_IPv6:-false} # if you have OpenSSL with IPv6 support AND IPv6 networking set it to yes
UNBRACKTD_IPV6=${UNBRACKTD_IPV6:-false} # some versions of OpenSSL (like Gentoo) don't support [bracketed] IPv6 addresses
SIZELMT_W_ARND=${SIZELMT_W_ARND:-false} # workaround for servers which have either a ClientHello total size limit or cipher limit of ~128 ciphers (e.g. old ASAs)
# tuning vars, can not be set by a cmd line switch
EXPERIMENTAL=${EXPERIMENTAL:-false}
@@ -2716,6 +2717,75 @@ run_server_preference() {
return 0
}
check_tls12_pref() {
local batchremoved="-CAMELLIA:-IDEA:-KRB5:-PSK:-SRP:-aNULL:-eNULL"
local batchremoved_success=false
local tested_cipher="-$1"
local order="$1"
while true; do
$OPENSSL s_client $STARTTLS -tls1_2 $BUGS -cipher "ALL:$tested_cipher:$batchremoved" -connect $NODEIP:$PORT $PROXY $SNI </dev/null 2>>$ERRFILE >$TMPFILE
if sclient_connect_successful $? $TMPFILE ; then
cipher=$(grep -aw "Cipher" $TMPFILE | egrep -avw "New|is" | sed -e 's/^.*Cipher.*://' -e 's/ //g')
order+=" $cipher"
tested_cipher="$tested_cipher:-$cipher"
else
debugme outln "A: $tested_cipher"
break
fi
done
batchremoved="${batchremoved//-/}"
while true; do
# no ciphers from "ALL:$tested_cipher:$batchremoved" left
# now we check $batchremoved, and remove the minus signs first:
$OPENSSL s_client $STARTTLS -tls1_2 $BUGS -cipher "$batchremoved" -connect $NODEIP:$PORT $PROXY $SNI </dev/null 2>>$ERRFILE >$TMPFILE
if sclient_connect_successful $? $TMPFILE ; then
batchremoved_success=true # signals that we have some of those ciphers and need to put everything together later on
cipher=$(grep -aw "Cipher" $TMPFILE | egrep -avw "New|is" | sed -e 's/^.*Cipher.*://' -e 's/ //g')
order+=" $cipher"
batchremoved="$batchremoved:-$cipher"
debugme outln "B1: $batchremoved"
else
debugme outln "B2: $batchremoved"
break
# nothing left with batchremoved ciphers, we need to put everything together
fi
done
if "$batchremoved_success"; then
# now we combine the two cipher sets from both while loops
combined_ciphers="${order// /:}"
$OPENSSL s_client $STARTTLS -tls1_2 $BUGS -cipher "$combined_ciphers" -connect $NODEIP:$PORT $PROXY $SNI </dev/null 2>>$ERRFILE >$TMPFILE
if sclient_connect_successful $? $TMPFILE ; then
# first cipher
cipher=$(grep -aw "Cipher" $TMPFILE | egrep -avw "New|is" | sed -e 's/^.*Cipher.*://' -e 's/ //g')
order="$cipher"
tested_cipher="-$cipher"
else
pr_warningln "fixme: something weird happened around line $((LINENO - 6))"
return 1
fi
while true; do
$OPENSSL s_client $STARTTLS -tls1_2 $BUGS -cipher "$combined_ciphers:$tested_cipher" -connect $NODEIP:$PORT $PROXY $SNI </dev/null 2>>$ERRFILE >$TMPFILE
if sclient_connect_successful $? $TMPFILE ; then
cipher=$(grep -aw "Cipher" $TMPFILE | egrep -avw "New|is" | sed -e 's/^.*Cipher.*://' -e 's/ //g')
order+=" $cipher"
tested_cipher="$tested_cipher:-$cipher"
else
# nothing left, we're done
out " $order"
break
fi
done
else
# second cipher set didn't succeed: we can just output everything
out " $order"
fi
return 0
}
cipher_pref_check() {
local p proto protos npn_protos addcmd=""
local tested_cipher cipher order
@@ -2739,19 +2809,28 @@ cipher_pref_check() {
tested_cipher=""
proto=$(grep -aw "Protocol" $TMPFILE | sed -e 's/^.*Protocol.*://' -e 's/ //g')
cipher=$(grep -aw "Cipher" $TMPFILE | egrep -avw "New|is" | sed -e 's/^.*Cipher.*://' -e 's/ //g')
[[ -z "$proto" ]] && continue # for early openssl versions sometimes needed
[[ -z "$proto" ]] && continue # for early openssl versions sometimes needed
outln
printf " %-10s %s " "$proto:" "$cipher"
printf " %-10s" "$proto: "
tested_cipher="-"$cipher
order="$cipher"
while true; do
$OPENSSL s_client $STARTTLS -"$p" $BUGS -cipher "ALL:$tested_cipher" -connect $NODEIP:$PORT $PROXY $addcmd </dev/null 2>>$ERRFILE >$TMPFILE
sclient_connect_successful $? $TMPFILE || break
cipher=$(grep -aw "Cipher" $TMPFILE | egrep -avw "New|is" | sed -e 's/^.*Cipher.*://' -e 's/ //g')
out "$cipher "
order+=" $cipher"
tested_cipher="$tested_cipher:-$cipher"
done
if [[ $p == tls1_2 ]] && "$SIZELMT_W_ARND"; then
# for some servers the ServerHello is limited to 128 ciphers or the ServerHello itself has a length restriction
# thus we reduce the number of ciphers we throw at the server and put later everything together
# see #189
# so far, this was only observed in TLS 1.2
check_tls12_pref "$cipher"
else
out " $cipher" # this is the first cipher for protocol
while true; do
$OPENSSL s_client $STARTTLS -"$p" $BUGS -cipher "ALL:$tested_cipher" -connect $NODEIP:$PORT $PROXY $addcmd </dev/null 2>>$ERRFILE >$TMPFILE
sclient_connect_successful $? $TMPFILE || break
cipher=$(grep -aw "Cipher" $TMPFILE | egrep -avw "New|is" | sed -e 's/^.*Cipher.*://' -e 's/ //g')
out " $cipher"
order+=" $cipher"
tested_cipher="$tested_cipher:-$cipher"
done
fi
fi
[[ -z "$order" ]] || fileout "order_$p" "INFO" "Default cipher order for protocol $p: $order"
done
@@ -2765,7 +2844,7 @@ cipher_pref_check() {
order=""
$OPENSSL s_client -host $NODE -port $PORT $BUGS -nextprotoneg "$p" $PROXY </dev/null 2>>$ERRFILE >$TMPFILE
cipher=$(grep -aw "Cipher" $TMPFILE | egrep -avw "New|is" | sed -e 's/^.*Cipher.*://' -e 's/ //g')
printf " %-10s %s " "$p:" "$cipher"
printf " %-10s %s " "$p:" "$cipher"
tested_cipher="-"$cipher
order="$cipher"
while true; do
@@ -3101,6 +3180,8 @@ certificate_info() {
local expfinding expok="OK"
local json_prefix="" # string to place at beginng of JSON IDs when there is more than one certificate
local indent=""
local days2warn2=$DAYS2WARN2
local days2warn1=$DAYS2WARN1
if [[ $number_of_certificates -gt 1 ]]; then
[[ $certificate_number -eq 1 ]] && outln
@@ -3196,7 +3277,7 @@ certificate_info() {
*)
out "RSASSA-PSS with $cert_sig_hash_algo"
pr_warningln " (Unknown hash algorithm)"
fileout "${json_prefix}algorithm" "WARN" "Signature Algorithm: RSASSA-PSS with $cert_sig_hash_algo"
fileout "${json_prefix}algorithm" "DEBUG" "Signature Algorithm: RSASSA-PSS with $cert_sig_hash_algo"
esac
;;
md2*)
@@ -3213,9 +3294,9 @@ certificate_info() {
;;
*)
out "$cert_sig_algo ("
pr_warning "Unknown"
pr_warning "FIXME: is unknown"
outln ")"
fileout "${json_prefix}algorithm" "WARN" "Signature Algorithm: $sign_algo"
fileout "${json_prefix}algorithm" "DEBUG" "Signature Algorithm: $sign_algo"
;;
esac
# old, but interesting: https://blog.hboeck.de/archives/754-Playing-with-the-EFF-SSL-Observatory.html
@@ -3225,6 +3306,13 @@ certificate_info() {
outln "(couldn't determine)"
fileout "${json_prefix}key_size" "WARN" "Server keys size cannot be determined"
else
case $cert_key_algo in
*RSA*|*rsa*) out "RSA ";;
*DSA*|*dsa*) out "DSA ";;
*ecdsa*|*ecPublicKey) out "ECDSA ";;
*GOST*|*gost*) out "GOST ";;
*) pr_warning "fixme: $cert_key_algo " ;;
esac
# https://tools.ietf.org/html/rfc4492, http://www.keylength.com/en/compare/
# http://infoscience.epfl.ch/record/164526/files/NPDF-22.pdf
# see http://csrc.nist.gov/publications/nistpubs/800-57/sp800-57_part1_rev3_general.pdf
@@ -3276,7 +3364,7 @@ certificate_info() {
fi
else
out "$cert_keysize bits ("
pr_warning "can't tell whether $cert_keysize bits is good or not"
pr_warning "FIXME: can't tell whether this is good here or not"
outln ")"
fileout "${json_prefix}key_size" "WARN" "Server keys $cert_keysize bits (unknown signature algorithm)"
fi
@@ -3441,28 +3529,33 @@ certificate_info() {
fi
days2expire=$((days2expire / 3600 / 24 ))
if grep -q "^Let's Encrypt Authority" <<< "$issuer_CN"; then # we take the half of the thresholds for LE certificates
days2warn2=$((days2warn2 / 2))
days2warn1=$((days2warn1 / 2))
fi
expire=$($OPENSSL x509 -in $HOSTCERT -checkend 1 2>>$ERRFILE)
if ! echo $expire | grep -qw not; then
pr_svrty_critical "expired!"
expfinding="expired!"
expok="NOT ok"
else
secs2warn=$((24 * 60 * 60 * DAYS2WARN2)) # low threshold first
secs2warn=$((24 * 60 * 60 * days2warn2)) # low threshold first
expire=$($OPENSSL x509 -in $HOSTCERT -checkend $secs2warn 2>>$ERRFILE)
if echo "$expire" | grep -qw not; then
secs2warn=$((24 * 60 * 60 * DAYS2WARN1))
secs2warn=$((24 * 60 * 60 * days2warn1))
expire=$($OPENSSL x509 -in $HOSTCERT -checkend $secs2warn 2>>$ERRFILE)
if echo "$expire" | grep -qw not; then
pr_done_good "$days2expire >= $DAYS2WARN1 days"
expfinding+="$days2expire >= $DAYS2WARN1 days"
pr_done_good "$days2expire >= $days2warn1 days"
expfinding+="$days2expire >= $days2warn1 days"
else
pr_svrty_medium "expires < $DAYS2WARN1 days ($days2expire)"
expfinding+="expires < $DAYS2WARN1 days ($days2expire)"
pr_svrty_medium "expires < $days2warn1 days ($days2expire)"
expfinding+="expires < $days2warn1 days ($days2expire)"
expok="WARN"
fi
else
pr_svrty_high "expires < $DAYS2WARN2 days ($days2expire) !"
expfinding+="expires < $DAYS2WARN2 days ($days2expire) !"
pr_svrty_high "expires < $days2warn2 days ($days2expire) !"
expfinding+="expires < $days2warn2 days ($days2expire) !"
expok="NOT ok"
fi
fi
@@ -6657,9 +6750,9 @@ display_rdns_etc() {
outln
fi
if "$LOCAL_A"; then
outln " A record via /etc/hosts "
outln " A record via $CORRECT_SPACES /etc/hosts "
elif [[ -n "$CMDLINE_IP" ]]; then
outln " A record via supplied IP \"$CMDLINE_IP\""
outln " A record via $CORRECT_SPACES supplied IP \"$CMDLINE_IP\""
fi
if [[ -n "$rDNS" ]]; then
printf " %-23s %s" "rDNS ($nodeip):" "$rDNS"
@@ -7343,4 +7436,4 @@ fi
exit $?
# $Id: testssl.sh,v 1.491 2016/06/02 07:59:51 dirkw Exp $
# $Id: testssl.sh,v 1.495 2016/06/07 11:02:57 dirkw Exp $