Removed neccessity for timeout, thanks to mzeltner. Better parameter parsing with short- and longoptions. Can now pass a path to use any openssl. Now works on OS X.
Pepi Zawodsky
parent
1f92094b3d
commit
9e5ce9cca3
134
cipherscan
134
cipherscan
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@ -10,13 +10,7 @@ BENCHMARKITER=30
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OPENSSLBIN="$(dirname $0)/openssl"
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TIMEOUT=10
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CIPHERSUITE="ALL:COMPLEMENTOFALL"
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HOST=$(sed -e 's/:.*//'<<<"${@: -1}")
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PORT=$(sed -e 's/.*://'<<<"${@: -1}")
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if [ "$HOST" = "$PORT" ]; then
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PORT=443
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fi
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TARGET=$HOST:$PORT
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SCLIENTARGS=$(sed -e "s/${@: -1}//" -e "s/-v//" -e "s/-a//" -e "s/-json//" <<<"$@")
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VERBOSE=0
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ALLCIPHERS=0
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OUTPUTFORMAT="terminal"
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@ -29,7 +23,8 @@ Connection: close
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usage() {
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echo -e "usage: $0 [-a|-v|-json] [openssl s_client args] <target:port>
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echo -e "usage: $0 [-a|--allciphers] [-b|--benchmark] [-j|--json] [-v|--verbose] [-o|--openssl file] [openssl s_client args] <target:port>
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usage: $0 -h|--help
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$0 attempts to connect to a target site using all the ciphersuites it knowns.
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Julien Vehent [:ulfr] - https://github.com/jvehent/cipherscan
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@ -38,25 +33,25 @@ Port defaults to 443
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example: $ $0 www.google.com:443
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Use one of the options below as the first argument:
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-v increase verbosity
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-a test all known ciphers individually at the end
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-json output results in json format
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Use one of the options below:
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-a | --allciphers Test all known ciphers individually at the end.
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-b | --benchmark Activate benchmark mode.
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-h | --help Shows this help text.
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-j | --json Output results in JSON format.
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-o | --openssl path/to/your/openssl binary you want to use.
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-v | --verbose Increase verbosity.
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The rest of the arguments will be interpreted as openssl s_client argument.
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This enables checking smtp/imap/pop3/ftp/xmpp via -starttls
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example: $0 -starttls xmpp jabber.ccc.de:5222
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OpenSSL path can be changed in the OPENSSLBIN variable
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Benchmarking can be enabled in the DOBENCHMARK variable
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EXAMPLES: $0 -starttls xmpp jabber.ccc.de:5222
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"
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exit 1
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}
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verbose() {
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if [ $VERBOSE -eq 1 ];then
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if [ $VERBOSE != 0 ];then
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echo $@
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fi
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}
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@ -70,7 +65,8 @@ test_cipher_on_target() {
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pfs=""
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for tls_version in "-ssl2" "-ssl3" "-tls1" "-tls1_1" "-tls1_2"
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do
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local tmp=$(mktemp)
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local tmp=$(mktemp "/tmp/cipherscan.XXXXXXXX") # OS X mktemp requires this.
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# echo "$sslcommand $tls_version"
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$sslcommand $tls_version 1>"$tmp" 2>/dev/null << EOF
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$REQUEST
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EOF
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@ -118,11 +114,11 @@ EOF
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# Calculate the average handshake time for a specific ciphersuite
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bench_cipher() {
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local ciphersuite="$1"
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local sslcommand="timeout $TIMEOUT $OPENSSLBIN s_client $SCLIENTARGS -connect $TARGET -cipher $ciphersuite"
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local sslcommand='echo "quit\n" | $OPENSSLBIN s_client $SCLIENTARGS -connect $TARGET -cipher $ciphersuite'
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local t="$(date +%s%N)"
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verbose "Benchmarking handshake on '$TARGET' with ciphersuite '$ciphersuite'"
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for i in $(seq 1 $BENCHMARKITER); do
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$sslcommand 2>/dev/null 1>/dev/null << EOF
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($sslcommand 2>/dev/null 1>/dev/null) << EOF
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$REQUEST
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EOF
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if [ $? -gt 0 ]; then
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@ -142,7 +138,7 @@ EOF
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get_cipher_pref() {
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[ "$OUTPUTFORMAT" == "terminal" ] && echo -n '.'
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local ciphersuite="$1"
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local sslcommand="timeout $TIMEOUT $OPENSSLBIN s_client $SCLIENTARGS -connect $TARGET -cipher $ciphersuite"
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local sslcommand="$OPENSSLBIN s_client $SCLIENTARGS -connect $TARGET -cipher $ciphersuite"
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verbose "Connecting to '$TARGET' with ciphersuite '$ciphersuite'"
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test_cipher_on_target "$sslcommand"
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local success=$?
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@ -203,20 +199,90 @@ display_results_in_json() {
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echo ']}'
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}
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# UNKNOWNOPTIONS=""
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while :
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do
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case $1 in
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-h | --help | -\?)
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usage
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exit 0 # This is not an error, User asked help. Don't do "exit 1"
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;;
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-o | --openssl)
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OPENSSLBIN=$2 # You might want to check if you really got FILE
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shift 2
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;;
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-a | --allciphers)
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ALLCIPHERS=1
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shift
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;;
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-v | --verbose)
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# Each instance of -v adds 1 to verbosity
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VERBOSE=$((VERBOSE+1))
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shift
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;;
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-j | -json | --json | --JSON)
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OUTPUTFORMAT="json"
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shift
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;;
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-b | --benchmark)
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DOBENCHMARK=1
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shift
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;;
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--) # End of all options
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shift
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break
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;;
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# -*)
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# UNKNOWNOPTIONS=$((UNKNOWNOPTIONS+$1))
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# # echo "WARN: Unknown option (ignored): $1" >&2
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# shift
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# ;;
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*) # no more options we understand.
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break
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;;
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esac
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done
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[[ -z $1 || "$1" == "-h" || "$1" == "--help" ]] && usage
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if [ ! -z $2 ]; then
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if [ "$1" == "-v" ]; then
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VERBOSE=1
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echo "Loading $($OPENSSLBIN ciphers -v $CIPHERSUITE 2>/dev/null|grep Kx|wc -l) ciphersuites from $(echo -n $($OPENSSLBIN version 2>/dev/null))"
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$OPENSSLBIN ciphers ALL 2>/dev/null
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elif [ "$1" == "-a" ]; then
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ALLCIPHERS=1
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elif [ "$1" == "-json" ]; then
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OUTPUTFORMAT="json"
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fi
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if [ VERBOSE != 0 ] ; then
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echo "Loading $($OPENSSLBIN ciphers -v $CIPHERSUITE 2>/dev/null|grep Kx|wc -l) ciphersuites from $(echo -n $($OPENSSLBIN version 2>/dev/null))"
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$OPENSSLBIN ciphers ALL 2>/dev/null
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fi
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#[[ -z $1 || "$1" == "-h" || "$1" == "--help" ]] && usage
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# if [ ! -z $2 ]; then
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# if [ "$1" == "-v" ]; then
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# VERBOSE=1
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# echo "Loading $($OPENSSLBIN ciphers -v $CIPHERSUITE 2>/dev/null|grep Kx|wc -l) ciphersuites from $(echo -n $($OPENSSLBIN version 2>/dev/null))"
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# $OPENSSLBIN ciphers ALL 2>/dev/null
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# elif [ "$1" == "-a" ]; then
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# ALLCIPHERS=1
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# elif [ "$1" == "-json" ]; then
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# OUTPUTFORMAT="json"
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# fi
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# fi
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# echo paramters left: $@
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TEMPTARGET=$(sed -e 's/^.* //'<<<"${@}")
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HOST=$(sed -e 's/:.*//'<<<"${TESTTARGET}")
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PORT=$(sed -e 's/.*://'<<<"${TESTTARGET}")
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# Default to https if no port given
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if [ "$HOST" = "$PORT" ]; then
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PORT=443
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fi
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# echo host: $HOST
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# echo port: $PORT
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TARGET=$HOST:$PORT
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# echo target: $TARGET
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SCLIENTARGS=$(sed -e s,${TEMPTARGET},,<<<"${@}")
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# echo sclientargs: $SCLIENTARGS
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cipherspref=();
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results=()
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@ -235,7 +301,7 @@ if [ $ALLCIPHERS -gt 0 ]; then
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echo; echo "All accepted ciphersuites"
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for c in $($OPENSSLBIN ciphers -v ALL:COMPLEMENTOFALL 2>/dev/null |awk '{print $1}'|sort|uniq); do
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r="fail"
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osslcommand="timeout $TIMEOUT $OPENSSLBIN s_client $SCLIENTARGS -connect $TARGET -cipher $c"
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osslcommand='echo "quit\n" | $OPENSSLBIN s_client $SCLIENTARGS -connect $TARGET -cipher $c'
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test_cipher_on_target "$osslcommand"
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if [ $? -eq 0 ]; then
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r="pass"
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