mirror of
https://github.com/mozilla/cipherscan.git
synced 2024-11-04 23:13:41 +01:00
Merge pull request #65 from tomato42/tls12-kex
Tests for TLS1.2 PFS key exchanges
This commit is contained in:
Julien Vehent
commit
4620627454
443
cipherscan
443
cipherscan
@ -4,7 +4,7 @@
|
||||
# License, v. 2.0. If a copy of the MPL was not distributed with this
|
||||
# file, You can obtain one at http://mozilla.org/MPL/2.0/.
|
||||
# Authors: Julien Vehent [:ulfr] - 201{3,4}
|
||||
# Hubert Kario - 2014
|
||||
# Hubert Kario - 2014, 2015
|
||||
|
||||
# vim: autoindent tabstop=4 shiftwidth=4 expandtab softtabstop=4 filetype=sh
|
||||
|
||||
@ -207,12 +207,18 @@ TEST_TOLERANCE="True"
|
||||
SNI="True"
|
||||
# openssl formated list of curves that will cause server to select ECC suite
|
||||
ecc_ciphers=""
|
||||
TEST_KEX_SIGALG="False"
|
||||
unset known_certs
|
||||
declare -A known_certs
|
||||
unset cert_checksums
|
||||
declare -A cert_checksums
|
||||
# array with results of tolerance scans (TLS version, extensions, etc.)
|
||||
declare -A tls_tolerance
|
||||
# array with info on type of fallback on unknown sigalgs (or required ones)
|
||||
declare -A sigalgs_fallback
|
||||
# array with preferred sigalgs for aRSA and aECDSA ciphers
|
||||
declare -a sigalgs_preferred_rsa
|
||||
declare -a sigalgs_preferred_ecdsa
|
||||
|
||||
# because running external commands like sleep incurs a fork penalty, we
|
||||
# first check if it is necessary
|
||||
@ -248,6 +254,8 @@ Use one of the options below:
|
||||
-o | --openssl path/to/your/openssl binary you want to use.
|
||||
--savecrt path where to save untrusted and leaf certificates
|
||||
--[no-]curves test ECC curves supported by server (req. OpenSSL 1.0.2)
|
||||
--sigalg test signature algorithms used in TLSv1.2 ephemeral ciphers
|
||||
(req. OpenSSL 1.0.2)
|
||||
--[no-]tolerance test TLS tolerance
|
||||
--no-sni don't use Server Name Indication
|
||||
--colors force use of colors (autodetect by default)
|
||||
@ -368,6 +376,7 @@ parse_openssl_output() {
|
||||
# clear variables in case matching doesn't hit them
|
||||
current_ocspstaple="False"
|
||||
current_cipher=""
|
||||
current_kex_sigalg=""
|
||||
current_pfs=""
|
||||
current_protocol=""
|
||||
current_tickethint="None"
|
||||
@ -403,6 +412,13 @@ parse_openssl_output() {
|
||||
continue
|
||||
fi
|
||||
|
||||
# extract the signing algorithm used in TLSv1.2 ephemeral kex
|
||||
if [[ $line =~ Peer\ signing\ digest ]]; then
|
||||
local match=($line)
|
||||
current_kex_sigalg="${match[3]}"
|
||||
continue
|
||||
fi
|
||||
|
||||
# extract data about selected temporary key
|
||||
if [[ $line =~ Server\ Temp\ Key ]]; then
|
||||
local match=($line)
|
||||
@ -680,6 +696,21 @@ get_cipher_pref() {
|
||||
fi
|
||||
}
|
||||
|
||||
display_sigalgs_in_terminal() {
|
||||
(echo "prio sigalg"
|
||||
for sigalg in "$@"; do
|
||||
if [[ $sigalg == "MD5" ]]; then
|
||||
color="${c_red}"
|
||||
elif [[ $sigalg == "SHA1" ]]; then
|
||||
color="${c_yellow}"
|
||||
else
|
||||
color="${c_green}"
|
||||
fi
|
||||
echo -e "$cnt ${color}$sigalg${c_reset}"
|
||||
cnt=$((cnt+1))
|
||||
done )| column -t
|
||||
}
|
||||
|
||||
display_results_in_terminal() {
|
||||
# Display the results
|
||||
ctr=1
|
||||
@ -701,13 +732,15 @@ display_results_in_terminal() {
|
||||
if [[ $USECOLORS == "True" ]]; then
|
||||
c_blue="\033[0;34m"
|
||||
c_green="\033[0;32m"
|
||||
c_yellow="\033[0;33m"
|
||||
c_red="\033[0;31m"
|
||||
c_reset="\033[0m"
|
||||
else
|
||||
c_reset=
|
||||
c_blue=
|
||||
c_green=
|
||||
c_yellow=
|
||||
c_red=
|
||||
c_reset=
|
||||
fi
|
||||
|
||||
echo "Target: $TARGET"; echo
|
||||
@ -832,7 +865,59 @@ display_results_in_terminal() {
|
||||
echo -e "Curves ordering: $curvesordering - fallback: $fallback_supported"
|
||||
fi
|
||||
|
||||
if [[ $TEST_KEX_SIGALG == "True" ]]; then
|
||||
echo
|
||||
echo "TLSv1.2 ephemeral sigalgs:"
|
||||
for auth in "ECDSA" "RSA"; do
|
||||
# not colored as neither of that results alone is good or bad
|
||||
if [[ -z ${sigalgs_fallback[$auth]} ]]; then
|
||||
echo "no PFS $auth ciphers detected"
|
||||
elif [[ ${sigalgs_fallback[$auth]} == "False" ]]; then
|
||||
echo "no PFS $auth fallback"
|
||||
elif [[ ${sigalgs_fallback[$auth]} == "intolerant" ]]; then
|
||||
echo "$auth test: intolerant of sigalg removal"
|
||||
elif [[ ${sigalgs_fallback[$auth]} =~ "pfs-" ]]; then
|
||||
echo "PFS $auth fallbacks to ${sigalgs_fallback[$auth]}"
|
||||
else
|
||||
echo "server forces ${sigalgs_fallback[$auth]} with $auth"
|
||||
fi
|
||||
done
|
||||
if [[ ${sigalgs_ordering} == "server" ]]; then
|
||||
echo -e "${c_green}Server side sigalg ordering${c_reset}"
|
||||
elif [[ ${sigalgs_ordering} == "client" ]]; then
|
||||
echo -e "${c_red}Client side sigalg ordering${c_reset}"
|
||||
elif [[ ${sigalgs_ordering} == "unsupported" ]]; then
|
||||
# do nothing - messages above will report that it's unsupported
|
||||
echo -n
|
||||
else
|
||||
echo "Ordering test failure: ${sigalgs_ordering}"
|
||||
fi
|
||||
|
||||
if [[ ${#sigalgs_preferred_ecdsa[@]} -gt 0 ]]; then
|
||||
echo
|
||||
if [[ ${sigalgs_preferred_ecdsa[0]} == "Fail" ]]; then
|
||||
echo -e "${c_red}ECDSA test failed${c_reset}"
|
||||
else
|
||||
local cnt=1
|
||||
echo "Supported PFS ECDSA signature algorithms"
|
||||
display_sigalgs_in_terminal "${sigalgs_preferred_ecdsa[@]}"
|
||||
fi
|
||||
fi
|
||||
|
||||
if [[ ${#sigalgs_preferred_rsa[@]} -gt 0 ]]; then
|
||||
echo
|
||||
if [[ ${sigalgs_preferred_rsa[0]} == "Fail" ]]; then
|
||||
echo -e "${c_red}RSA test failed${c_reset}"
|
||||
else
|
||||
local cnt=1
|
||||
echo "Supported PFS RSA signature algorithms"
|
||||
display_sigalgs_in_terminal "${sigalgs_preferred_rsa[@]}"
|
||||
fi
|
||||
fi
|
||||
fi
|
||||
|
||||
if [[ $TEST_TOLERANCE == "True" ]]; then
|
||||
echo
|
||||
if [[ $tls_tolerance['big-TLSv1.2'] =~ TLSv1.2 ]]; then
|
||||
echo -e "TLS Tolerance: ${c_green}yes${c_reset}"
|
||||
else
|
||||
@ -885,6 +970,41 @@ display_results_in_json() {
|
||||
if [[ $TEST_CURVES == "True" ]]; then
|
||||
echo -n ",\"curves_fallback\":\"$fallback_supported\""
|
||||
fi
|
||||
|
||||
if [[ $TEST_KEX_SIGALG == "True" ]]; then
|
||||
echo -n ',"sigalgs":{'
|
||||
echo -n "\"ordering\":\"${sigalgs_ordering}\","
|
||||
echo -n "\"ECDSA-fallback\":\"${sigalgs_fallback[ECDSA]}\","
|
||||
echo -n "\"RSA-fallback\":\"${sigalgs_fallback[RSA]}\""
|
||||
if [[ ${#sigalgs_preferred_ecdsa[@]} -gt 0 ]]; then
|
||||
echo -n ","
|
||||
echo -n '"ECDSA":['
|
||||
local cnt=0
|
||||
for sigalg in "${sigalgs_preferred_ecdsa[@]}"; do
|
||||
if [[ $cnt -gt 0 ]]; then
|
||||
echo -n ','
|
||||
fi
|
||||
echo -n "\"$sigalg\""
|
||||
cnt=$((cnt+1))
|
||||
done
|
||||
echo -n ']'
|
||||
fi
|
||||
if [[ ${#sigalgs_preferred_rsa[@]} -gt 0 ]]; then
|
||||
echo -n ","
|
||||
echo -n '"RSA":['
|
||||
local cnt=0
|
||||
for sigalg in "${sigalgs_preferred_rsa[@]}"; do
|
||||
if [[ $cnt -gt 0 ]]; then
|
||||
echo -n ','
|
||||
fi
|
||||
echo -n "\"$sigalg\""
|
||||
cnt=$((cnt+1))
|
||||
done
|
||||
echo -n ']'
|
||||
fi
|
||||
echo -n '}'
|
||||
fi
|
||||
|
||||
echo -n ',"configs":{'
|
||||
ctr=0
|
||||
for test_name in "${!tls_tolerance[@]}"; do
|
||||
@ -1353,6 +1473,317 @@ test_tls_tolerance() {
|
||||
fi
|
||||
}
|
||||
|
||||
test_kex_sigalgs() {
|
||||
local ecdsa_sigalgs=("ECDSA+SHA512" "ECDSA+SHA384" "ECDSA+SHA256"
|
||||
"ECDSA+SHA224" "ECDSA+SHA1" "ECDSA+MD5")
|
||||
local rsa_sigalgs=("RSA+SHA512" "RSA+SHA384" "RSA+SHA256"
|
||||
"RSA+SHA224" "RSA+SHA1" "RSA+MD5")
|
||||
|
||||
local supported_rsa_ciphers=""
|
||||
local supported_ecdsa_ciphers=""
|
||||
local supported_ciphers=()
|
||||
|
||||
# check if TLS1.2 is supported by server, as tests needs it
|
||||
# collect ciphers
|
||||
local tls12="False"
|
||||
for cipher in "${cipherspref[@]}"; do
|
||||
local ciph_data=($cipher)
|
||||
if [[ ${ciph_data[1]} =~ TLSv1.2 ]]; then
|
||||
tls12="True"
|
||||
fi
|
||||
supported_ciphers+=(${ciph_data[0]})
|
||||
done
|
||||
|
||||
if [[ $tls12 == "False" ]]; then
|
||||
return
|
||||
fi
|
||||
|
||||
# create cipher list for ecdsa and rsa tests that include non ephemeral
|
||||
# ciphers for fallback
|
||||
for cipher in "${supported_ciphers[@]}"; do
|
||||
if [[ $cipher =~ DHE-ECDSA ]]; then
|
||||
if [[ $supported_ecdsa_ciphers ]]; then
|
||||
supported_ecdsa_ciphers+=":"
|
||||
fi
|
||||
supported_ecdsa_ciphers+="$cipher"
|
||||
elif [[ ${supported_ecdsa_ciphers} ]]; then
|
||||
supported_ecdsa_ciphers+=":$cipher"
|
||||
fi
|
||||
|
||||
if [[ $cipher =~ DHE-RSA ]]; then
|
||||
if [[ $supported_rsa_ciphers ]]; then
|
||||
supported_rsa_ciphers+=":"
|
||||
fi
|
||||
supported_rsa_ciphers+="$cipher"
|
||||
elif [[ ${supported_rsa_ciphers} ]]; then
|
||||
supported_rsa_ciphers+=":$cipher"
|
||||
fi
|
||||
done
|
||||
|
||||
#
|
||||
# Test default sigalgs for aECDSA ciphers
|
||||
#
|
||||
if [[ $supported_ecdsa_ciphers ]]; then
|
||||
local sslcommand="$TIMEOUTBIN $TIMEOUT $OPENSSLBIN s_client"
|
||||
if [ -n "$CAPATH" ]; then
|
||||
sslcommand+=" -CApath $CAPATH -showcerts"
|
||||
elif [ -e "$CACERTS" ]; then
|
||||
sslcommand+=" -CAfile $CACERTS"
|
||||
fi
|
||||
sslcommand+=" $SCLIENTARGS -connect $TARGET -cipher $supported_ecdsa_ciphers"
|
||||
# since some ciphers supported by server may be SSLv2 only, we need to
|
||||
# force use of TLSv1.2, otherwise openssl will send a SSLv2 compatible
|
||||
# client hello
|
||||
sslcommand+=" -no_ssl2 -no_ssl3"
|
||||
local test_ecdsa_sigalgs=("${ecdsa_sigalgs[@]}")
|
||||
local test_rsa_sigalgs=("${rsa_sigalgs[@]}")
|
||||
|
||||
while true; do
|
||||
join_array_by_char ":" "${test_ecdsa_sigalgs[@]}" \
|
||||
"${test_rsa_sigalgs[@]}"
|
||||
local test_sigalgs="$joined_array"
|
||||
|
||||
ratelimit
|
||||
verbose "Testing default ECDSA sig algs with $sslcommand -sigalgs $test_sigalgs"
|
||||
local tmp=$(echo Q | $sslcommand -sigalgs $test_sigalgs 2>/dev/null)
|
||||
parse_openssl_output <<<"$tmp"
|
||||
verbose "server selected $current_cipher, $current_protocol, $current_kex_sigalg"
|
||||
if [[ -z $current_protocol || $current_cipher == "(NONE)" \
|
||||
|| $current_cipher == "0000" ]]; then
|
||||
if [[ ${#test_ecdsa_sigalgs[@]} -eq 0 ]]; then
|
||||
sigalgs_fallback["ECDSA"]="False"
|
||||
else
|
||||
sigalgs_fallback["ECDSA"]="intolerant"
|
||||
fi
|
||||
break
|
||||
fi
|
||||
|
||||
if [[ $current_cipher =~ DHE-ECDSA ]]; then
|
||||
if [[ -z $current_kex_sigalg ]]; then
|
||||
# if we didn't get a sigalg that means the test failed
|
||||
sigalgs_preferred_ecdsa=("Fail")
|
||||
break
|
||||
fi
|
||||
|
||||
if [[ "${test_ecdsa_sigalgs[*]}" =~ "ECDSA+$current_kex_sigalg" ]]; then
|
||||
# save sigalg for reporting
|
||||
sigalgs_preferred_ecdsa+=("$current_kex_sigalg")
|
||||
|
||||
# remove it from offered
|
||||
local id
|
||||
for id in "${!test_ecdsa_sigalgs[@]}"; do
|
||||
if [[ ${test_ecdsa_sigalgs[$id]} =~ $current_kex_sigalg ]]; then
|
||||
unset test_ecdsa_sigalgs[$id]
|
||||
break
|
||||
fi
|
||||
done
|
||||
# continue testing
|
||||
else
|
||||
# server selected sigalg we didn't offer
|
||||
sigalgs_fallback["ECDSA"]="$current_kex_sigalg"
|
||||
break
|
||||
fi
|
||||
elif [[ $current_cipher =~ DHE-RSA ]]; then
|
||||
# we got a fallback to a RSA based cipher
|
||||
if [[ -z $current_kex_sigalg ]]; then
|
||||
sigalgs_fallback["ECDSA"]="pfs-rsa"
|
||||
else
|
||||
sigalgs_fallback["ECDSA"]="pfs-rsa-${current_kex_sigalg}"
|
||||
fi
|
||||
break
|
||||
else
|
||||
# we got a fallback to a non PFS cipher, that's good too
|
||||
sigalgs_fallback["ECDSA"]="soft-nopfs"
|
||||
break
|
||||
fi
|
||||
[ "$OUTPUTFORMAT" == "terminal" ] && [ $DEBUG -lt 1 ] && echo -n '.'
|
||||
done
|
||||
fi
|
||||
|
||||
#
|
||||
# Test default sigalgs for aRSA ciphers
|
||||
#
|
||||
if [[ ${supported_rsa_ciphers} ]]; then
|
||||
local sslcommand="$TIMEOUTBIN $TIMEOUT $OPENSSLBIN s_client"
|
||||
if [ -n "$CAPATH" ]; then
|
||||
sslcommand+=" -CApath $CAPATH -showcerts"
|
||||
elif [ -e "$CACERTS" ]; then
|
||||
sslcommand+=" -CAfile $CACERTS"
|
||||
fi
|
||||
sslcommand+=" $SCLIENTARGS -connect $TARGET -cipher $supported_rsa_ciphers"
|
||||
# since some ciphers supported by server may be SSLv2 only, we need to
|
||||
# force use of TLSv1.2, otherwise openssl will send a SSLv2 compatible
|
||||
# client hello
|
||||
sslcommand+=" -no_ssl2 -no_ssl3"
|
||||
local test_ecdsa_sigalgs=("${ecdsa_sigalgs[@]}")
|
||||
local test_rsa_sigalgs=("${rsa_sigalgs[@]}")
|
||||
|
||||
while true; do
|
||||
join_array_by_char ":" "${test_rsa_sigalgs[@]}" \
|
||||
"${test_ecdsa_sigalgs[@]}"
|
||||
local test_sigalgs="$joined_array"
|
||||
|
||||
ratelimit
|
||||
verbose "Testing default RSA sig algs with $sslcommand -sigalgs $test_sigalgs"
|
||||
local tmp=$(echo Q | $sslcommand -sigalgs $test_sigalgs 2>/dev/null)
|
||||
parse_openssl_output <<<"$tmp"
|
||||
verbose "server selected $current_cipher, $current_protocol, $current_kex_sigalg"
|
||||
if [[ -z $current_protocol || $current_cipher == "(NONE)" \
|
||||
|| $current_cipher == "0000" ]]; then
|
||||
if [[ ${#test_rsa_sigalgs[@]} -eq 0 ]]; then
|
||||
sigalgs_fallback["RSA"]="False"
|
||||
else
|
||||
sigalgs_fallback["RSA"]="intolerant"
|
||||
fi
|
||||
break
|
||||
fi
|
||||
|
||||
if [[ $current_cipher =~ DHE-RSA ]]; then
|
||||
if [[ -z $current_kex_sigalg ]]; then
|
||||
# if we didn't get a sigalg that means the test failed
|
||||
sigalgs_preferred_rsa=("Fail")
|
||||
break
|
||||
fi
|
||||
|
||||
if [[ "${test_rsa_sigalgs[*]}" =~ "RSA+$current_kex_sigalg" ]]; then
|
||||
# save sigalg for reporting
|
||||
sigalgs_preferred_rsa+=("$current_kex_sigalg")
|
||||
|
||||
# remove it from offered
|
||||
local id
|
||||
for id in "${!test_rsa_sigalgs[@]}"; do
|
||||
if [[ ${test_rsa_sigalgs[$id]} =~ $current_kex_sigalg ]]; then
|
||||
unset test_rsa_sigalgs[$id]
|
||||
break
|
||||
fi
|
||||
done
|
||||
# continue testing
|
||||
else
|
||||
# server selected sigalg we didn't offer
|
||||
sigalgs_fallback["RSA"]="$current_kex_sigalg"
|
||||
break
|
||||
fi
|
||||
elif [[ $current_cipher =~ DHE-ECDSA ]]; then
|
||||
# we got a fallback to an ECDSA based cipher
|
||||
if [[ -z $current_kex_sigalg ]]; then
|
||||
sigalgs_fallback["RSA"]="pfs-ecdsa"
|
||||
else
|
||||
sigalgs_fallback["RSA"]="pfs-ecdsa-${current_kex_sigalg}"
|
||||
fi
|
||||
break
|
||||
else
|
||||
# we got a fallback to a non PFS cipher, that's good too
|
||||
sigalgs_fallback["RSA"]="soft-nopfs"
|
||||
break
|
||||
fi
|
||||
[ "$OUTPUTFORMAT" == "terminal" ] && [ $DEBUG -lt 1 ] && echo -n '.'
|
||||
done
|
||||
fi
|
||||
|
||||
#
|
||||
# test which ordering is preferred, server or client
|
||||
#
|
||||
if [[ ${#sigalgs_preferred_rsa[@]} -eq 0 \
|
||||
&& ${#sigalgs_preferred_ecdsa[@]} -eq 0 ]]; then
|
||||
sigalgs_ordering="unsupported"
|
||||
elif [[ ${#sigalgs_preferred_rsa[@]} -le 1 \
|
||||
&& ${#sigalgs_preferred_ecdsa[@]} -le 1 ]]; then
|
||||
# if there is just one hash for each signature algorithm, that means
|
||||
# the server essentially forces the signature algorithm on client
|
||||
sigalgs_ordering="server"
|
||||
elif [[ ${#sigalgs_preferred_ecdsa[@]} -gt 1 ]]; then
|
||||
# in case server supports multiple ECDSA sigalgs, test just those,
|
||||
# even if it supports RSA (since those are more important)
|
||||
|
||||
# completely rotate order check if negotiated changes
|
||||
local test_sigalgs=""
|
||||
local i
|
||||
for ((i=${#sigalgs_preferred_ecdsa[@]}-1; i>0; i--)); do
|
||||
test_sigalgs+="ECDSA+${sigalgs_preferred_ecdsa[$i]}:"
|
||||
done
|
||||
test_sigalgs+="ECDSA+${sigalgs_preferred_ecdsa[0]}"
|
||||
|
||||
# prepare the command to run
|
||||
local sslcommand="$TIMEOUTBIN $TIMEOUT $OPENSSLBIN s_client"
|
||||
if [ -n "$CAPATH" ]; then
|
||||
sslcommand+=" -CApath $CAPATH -showcerts"
|
||||
elif [ -e "$CACERTS" ]; then
|
||||
sslcommand+=" -CAfile $CACERTS"
|
||||
fi
|
||||
sslcommand+=" $SCLIENTARGS -connect $TARGET -cipher $supported_ecdsa_ciphers"
|
||||
# since some ciphers supported by server may be SSLv2 only, we need to
|
||||
# force use of TLSv1.2, otherwise openssl will send a SSLv2 compatible
|
||||
# client hello
|
||||
sslcommand+=" -no_ssl2 -no_ssl3"
|
||||
|
||||
ratelimit
|
||||
verbose "Test ordering of sigalgs with $sslcommand -sigalgs $test_sigalgs"
|
||||
local tmp=$(echo Q | $sslcommand -sigalgs $test_sigalgs 2>/dev/null)
|
||||
parse_openssl_output <<<"$tmp"
|
||||
verbose "server selected $current_cipher, $current_protocol, $current_kex_sigalg"
|
||||
if [[ -z $current_protocol || $current_cipher == "(NONE)" \
|
||||
|| $current_cipher == "0000" ]]; then
|
||||
sigalgs_ordering="intolerant"
|
||||
elif [[ -z $current_kex_sigalg ]] || [[ ! $current_cipher =~ DHE-ECDSA ]]; then
|
||||
sigalgs_ordering="order-fallback"
|
||||
else
|
||||
if [[ ${sigalgs_preferred_ecdsa[0]} == $current_kex_sigalg ]]; then
|
||||
sigalgs_ordering="server"
|
||||
elif [[ ${sigalgs_preferred_ecdsa[${#sigalgs_preferred_ecdsa[@]}-1]} \
|
||||
== $current_kex_sigalg ]]; then
|
||||
sigalgs_ordering="client"
|
||||
else
|
||||
sigalgs_ordering="indeterminate"
|
||||
fi
|
||||
fi
|
||||
else
|
||||
# test ordering with RSA ciphers
|
||||
|
||||
# completely rotate order check if negotiated changes
|
||||
local test_sigalgs=""
|
||||
local i
|
||||
for ((i=${#sigalgs_preferred_rsa[@]}-1; i>0; i--)); do
|
||||
test_sigalgs+="RSA+${sigalgs_preferred_rsa[$i]}:"
|
||||
done
|
||||
test_sigalgs+="RSA+${sigalgs_preferred_rsa[0]}"
|
||||
|
||||
# prepare the command to run
|
||||
local sslcommand="$TIMEOUTBIN $TIMEOUT $OPENSSLBIN s_client"
|
||||
if [ -n "$CAPATH" ]; then
|
||||
sslcommand+=" -CApath $CAPATH -showcerts"
|
||||
elif [ -e "$CACERTS" ]; then
|
||||
sslcommand+=" -CAfile $CACERTS"
|
||||
fi
|
||||
sslcommand+=" $SCLIENTARGS -connect $TARGET -cipher $supported_rsa_ciphers"
|
||||
# since some ciphers supported by server may be SSLv2 only, we need to
|
||||
# force use of TLSv1.2, otherwise openssl will send a SSLv2 compatible
|
||||
# client hello
|
||||
sslcommand+=" -no_ssl2 -no_ssl3"
|
||||
|
||||
ratelimit
|
||||
verbose "Test ordering of sigalgs with $sslcommand -sigalgs $test_sigalgs"
|
||||
local tmp=$(echo Q | $sslcommand -sigalgs $test_sigalgs 2>/dev/null)
|
||||
parse_openssl_output <<<"$tmp"
|
||||
verbose "server selected $current_cipher, $current_protocol, $current_kex_sigalg"
|
||||
if [[ -z $current_protocol || $current_cipher == "(NONE)" \
|
||||
|| $current_cipher == "0000" ]]; then
|
||||
sigalgs_ordering="intolerant"
|
||||
elif [[ -z $current_kex_sigalg ]] || [[ ! $current_cipher =~ DHE-RSA ]]; then
|
||||
sigalgs_ordering="order-fallback"
|
||||
else
|
||||
if [[ ${sigalgs_preferred_rsa[0]} == $current_kex_sigalg ]]; then
|
||||
sigalgs_ordering="server"
|
||||
elif [[ ${sigalgs_preferred_rsa[${#sigalgs_preferred_rsa[@]}-1]} \
|
||||
== $current_kex_sigalg ]]; then
|
||||
sigalgs_ordering="client"
|
||||
else
|
||||
sigalgs_ordering="indeterminate"
|
||||
fi
|
||||
fi
|
||||
fi
|
||||
|
||||
}
|
||||
|
||||
# If no options are given, give usage information and exit (with error code)
|
||||
if (( $# == 0 )); then
|
||||
usage
|
||||
@ -1422,6 +1853,10 @@ do
|
||||
TEST_CURVES="False"
|
||||
shift 1
|
||||
;;
|
||||
--sigalg)
|
||||
TEST_KEX_SIGALG="True"
|
||||
shift 1
|
||||
;;
|
||||
--tolerance)
|
||||
TEST_TOLERANCE="True"
|
||||
shift 1
|
||||
@ -1579,6 +2014,10 @@ fi
|
||||
|
||||
test_serverside_ordering
|
||||
|
||||
if [[ $TEST_KEX_SIGALG == "True" ]]; then
|
||||
test_kex_sigalgs
|
||||
fi
|
||||
|
||||
if [[ $TEST_CURVES == "True" ]]; then
|
||||
test_curves_fallback
|
||||
fi
|
||||
|
||||
@ -135,6 +135,9 @@ fallback_ids['v2-big-TLSv1.2'] = i
|
||||
i+=1
|
||||
# 3rd padding space
|
||||
fallback_ids[' '] = i
|
||||
pfssigalgfallback = defaultdict(int)
|
||||
pfssigalgs = defaultdict(int)
|
||||
pfssigalgsordering = defaultdict(int)
|
||||
dsarsastack = 0
|
||||
total = 0
|
||||
for r,d,flist in os.walk(path):
|
||||
@ -155,6 +158,9 @@ for r,d,flist in os.walk(path):
|
||||
tempfallbacks = {}
|
||||
""" supported ciphers by the server under scan """
|
||||
tempcipherstats = {}
|
||||
temppfssigalgordering = {}
|
||||
temppfssigalgfallback = {}
|
||||
temppfssigalgs = {}
|
||||
ciphertypes = 0
|
||||
AESGCM = False
|
||||
AESCBC = False
|
||||
@ -249,6 +255,25 @@ for r,d,flist in os.walk(path):
|
||||
if len(results['curve']) == 1:
|
||||
tempecccurve[curve + ' Only'] = 1
|
||||
|
||||
""" collect TLSv1.2 PFS ciphersuite sigalgs """
|
||||
if 'sigalgs' in results:
|
||||
if results['sigalgs']['ordering']:
|
||||
temppfssigalgordering[results['sigalgs']['ordering']] = 1
|
||||
if results['sigalgs']['ECDSA-fallback']:
|
||||
temppfssigalgfallback['ECDSA ' + results['sigalgs']['ECDSA-fallback']] = 1
|
||||
if results['sigalgs']['RSA-fallback']:
|
||||
temppfssigalgfallback['RSA ' + results['sigalgs']['RSA-fallback']] = 1
|
||||
if 'RSA' in results['sigalgs'] and results['sigalgs']['RSA'][0] != 'Fail':
|
||||
for pfssigalg in results['sigalgs']['RSA']:
|
||||
temppfssigalgs['RSA-' + pfssigalg]=1
|
||||
if len(results['sigalgs']['RSA']) == 1:
|
||||
temppfssigalgs['RSA-' + results['sigalgs']['RSA'][0] + ' Only'] = 1
|
||||
if 'ECDSA' in results['sigalgs'] and results['sigalgs']['ECDSA'][0] != 'Fail':
|
||||
for pfssigalg in results['sigalgs']['ECDSA']:
|
||||
temppfssigalgs['ECDSA-' + pfssigalg]=1
|
||||
if len(results['sigalgs']['ECDSA']) == 1:
|
||||
temppfssigalgs['ECDSA-' + results['sigalgs']['ECDSA'][0] + ' Only'] = 1
|
||||
|
||||
if 'configs' in results:
|
||||
tolerance = [' '] * len(fallback_ids)
|
||||
for entry in results['configs']:
|
||||
@ -531,6 +556,13 @@ for r,d,flist in os.walk(path):
|
||||
else:
|
||||
ocspstaple['Unsupported'] += 1
|
||||
|
||||
for s in temppfssigalgfallback:
|
||||
pfssigalgfallback[s] += 1
|
||||
for s in temppfssigalgs:
|
||||
pfssigalgs[s] += 1
|
||||
for s in temppfssigalgordering:
|
||||
pfssigalgsordering[s] += 1
|
||||
|
||||
""" store cipher stats """
|
||||
if AESGCM:
|
||||
cipherstats['AES-GCM'] += 1
|
||||
@ -735,6 +767,24 @@ for stat in sorted(eccordering):
|
||||
percent = round(eccordering[stat] / total * 100, 4)
|
||||
sys.stdout.write(stat.ljust(25) + " " + str(eccordering[stat]).ljust(10) + str(percent).ljust(9) + "\n")
|
||||
|
||||
print("\nTLSv1.2 PFS supported sigalgs Count Percent ")
|
||||
print("------------------------------+---------+--------")
|
||||
for stat in sorted(pfssigalgs):
|
||||
percent = round(pfssigalgs[stat] / total * 100, 4)
|
||||
sys.stdout.write(stat.ljust(30) + " " + str(pfssigalgs[stat]).ljust(10) + str(percent).ljust(9) + "\n")
|
||||
|
||||
print("\nTLSv1.2 PFS ordering Count Percent ")
|
||||
print("------------------------------+---------+--------")
|
||||
for stat in sorted(pfssigalgsordering):
|
||||
percent = round(pfssigalgsordering[stat] / total * 100, 4)
|
||||
sys.stdout.write(stat.ljust(30) + " " + str(pfssigalgsordering[stat]).ljust(10) + str(percent).ljust(9) + "\n")
|
||||
|
||||
print("\nTLSv1.2 PFS sigalg fallback Count Percent ")
|
||||
print("------------------------------+---------+--------")
|
||||
for stat in sorted(pfssigalgfallback):
|
||||
percent = round(pfssigalgfallback[stat] / total * 100, 4)
|
||||
sys.stdout.write(stat.ljust(30) + " " + str(pfssigalgfallback[stat]).ljust(10) + str(percent).ljust(9) + "\n")
|
||||
|
||||
print("\nTLS session ticket hint Count Percent ")
|
||||
print("-------------------------+---------+--------")
|
||||
for stat in natural_sort(tickethint):
|
||||
|
||||
@ -68,7 +68,7 @@ function scan_host() {
|
||||
if [ $? -gt 0 ]; then
|
||||
return
|
||||
fi
|
||||
../cipherscan --capath ca_files --saveca --curves --savecrt certs --delay 2 -json -servername $1 $2:443 > results/$1@$2
|
||||
../cipherscan --capath ca_files --saveca --curves --savecrt certs --delay 2 --sigalg -json -servername $1 $2:443 > results/$1@$2
|
||||
}
|
||||
|
||||
function scan_host_no_sni() {
|
||||
@ -80,7 +80,7 @@ function scan_host_no_sni() {
|
||||
if [ $? -gt 0 ]; then
|
||||
return
|
||||
fi
|
||||
../cipherscan --capath ca_files --saveca --curves --savecrt certs --delay 2 -json $1:443 > results/$1
|
||||
../cipherscan --capath ca_files --saveca --curves --savecrt certs --delay 2 --sigalg -json $1:443 > results/$1
|
||||
}
|
||||
|
||||
function scan_hostname() {
|
||||
|
||||
Loading…
Reference in New Issue
Block a user