mirror of
https://github.com/drwetter/testssl.sh.git
synced 2025-01-10 02:30:58 +01:00
Detect multiple server certificates
Currently, run_server_defaults() will only display information about a single server certificate, even if the host being tested has more than one certificate. This PR tries to find all of the certificates that a server uses and displays information about each one.
This commit is contained in:
dcooper16
parent
dc4f90ac48
commit
7758c4a40c
187
testssl.sh
187
testssl.sh
@ -1847,10 +1847,11 @@ cipher_pref_check() {
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# arg1 is proto or empty
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# arg2 is "-cipher <OpenSSL cipher>" or empty
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get_host_cert() {
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local tmpvar=$TEMPDIR/$FUNCNAME.txt # change later to $TMPFILE
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$OPENSSL s_client $STARTTLS $BUGS -connect $NODEIP:$PORT $PROXY $SNI $1 2>/dev/null </dev/null >$TEMPDIR/$FUNCNAME.txt
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$OPENSSL s_client $STARTTLS $BUGS -connect $NODEIP:$PORT $PROXY $SNI $1 $2 2>/dev/null </dev/null >$TEMPDIR/$FUNCNAME.txt
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if sclient_connect_successful $? $tmpvar; then
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awk '/-----BEGIN/,/-----END/ { print $0 }' $tmpvar >$HOSTCERT
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else
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@ -1859,11 +1860,12 @@ get_host_cert() {
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# return $((${PIPESTATUS[0]} + ${PIPESTATUS[1]}))
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}
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# arg1 is an OpenSSL cipher
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get_all_certs() {
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local savedir
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local nrsaved
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$OPENSSL s_client -showcerts $STARTTLS $BUGS -connect $NODEIP:$PORT $PROXY $SNI 2>$ERRFILE </dev/null >$TEMPDIR/allcerts.txt
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$OPENSSL s_client -showcerts $STARTTLS $BUGS -cipher $1 -connect $NODEIP:$PORT $PROXY $SNI 2>$ERRFILE </dev/null >$TEMPDIR/allcerts.txt
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sclient_connect_successful $? $TMPFILE || \
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pr_litemagenta "problem getting all certs"
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savedir=$(pwd); cd $TEMPDIR
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@ -1896,6 +1898,7 @@ verify_retcode_helper() {
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return $ret
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}
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# arg1 is an OpenSSL cipher
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determine_trust() {
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local i=1
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local bundle_fname
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@ -1920,7 +1923,7 @@ determine_trust() {
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return 7
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fi
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debugme printf -- " %-12s" "${certificate_file[i]}"
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$OPENSSL s_client -purpose sslserver -CAfile $bundle_fname $STARTTLS $BUGS $PROXY -connect $NODEIP:$PORT $SNI </dev/null >$TEMPDIR/${certificate_file[i]}.1 2>$TEMPDIR/${certificate_file[i]}.2
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$OPENSSL s_client -purpose sslserver -cipher $1 -CAfile $bundle_fname $STARTTLS $BUGS $PROXY -connect $NODEIP:$PORT $SNI </dev/null >$TEMPDIR/${certificate_file[i]}.1 2>$TEMPDIR/${certificate_file[i]}.2
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verify_retcode[i]=$(awk -F':' '/Verify return code: / { print $2 }' $TEMPDIR//${certificate_file[i]}.1)
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if egrep -wq "ok|0" <<< ${verify_retcode[i]}; then
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trust[i]=true
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@ -2010,7 +2013,7 @@ sclient_connect_successful() {
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return 1
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}
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# arg1 is "-cipher <OpenSSL cipher>" or empty
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determine_tls_extensions() {
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local proto
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local success
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@ -2022,14 +2025,16 @@ determine_tls_extensions() {
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success=7
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for proto in tls1_2 tls1_1 tls1 ssl3; do
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# alpn: echo | openssl s_client -connect google.com:443 -tlsextdebug -alpn h2-14 -servername google.com <-- suport needs to be checked b4 -- see also: ssl/t1_trce.c
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$OPENSSL s_client $STARTTLS $BUGS -connect $NODEIP:$PORT $PROXY $SNI -$proto -tlsextdebug -nextprotoneg $alpn -status </dev/null 2>$ERRFILE >$TMPFILE
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$OPENSSL s_client $STARTTLS $BUGS $1 -connect $NODEIP:$PORT $PROXY $SNI -$proto -tlsextdebug -nextprotoneg $alpn -status </dev/null 2>$ERRFILE >$TMPFILE
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sclient_connect_successful $? $TMPFILE && success=0 && break
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done # this loop is needed for IIS/6
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if [[ $success -eq 7 ]]; then
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# "-status" above doesn't work for GOST only servers, so we do another test without it and see whether that works then:
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$OPENSSL s_client $STARTTLS $BUGS -connect $NODEIP:$PORT $PROXY $SNI -$proto -tlsextdebug </dev/null 2>>$ERRFILE >$TMPFILE
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$OPENSSL s_client $STARTTLS $BUGS $1 -connect $NODEIP:$PORT $PROXY $SNI -$proto -tlsextdebug </dev/null 2>>$ERRFILE >$TMPFILE
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if ! sclient_connect_successful $? $TMPFILE; then
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if [ -z "$1" ]; then
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pr_litemagentaln "Strange, no SSL/TLS protocol seems to be supported (error around line $((LINENO - 6)))"
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fi
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tmpfile_handle $FUNCNAME.txt
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return 7 # this is ugly, I know
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else
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@ -2037,7 +2042,7 @@ determine_tls_extensions() {
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fi
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fi
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TLS_EXTENSIONS=$(awk -F'"' '/TLS server extension / { printf "\""$2"\" " }' $TMPFILE)
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get_host_cert "-$proto"
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get_host_cert "-$proto" "$1"
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success=$?
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tmpfile_handle $FUNCNAME.txt
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@ -2045,52 +2050,33 @@ determine_tls_extensions() {
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}
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run_server_defaults() {
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certificate_info() {
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local proto
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local sessticket_str lifetime unit keysize sig_algo key_algo
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local certificate_number=$1
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local number_of_certificates=$2
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local cipher=$3
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local cipherlist=$4
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local keysize=$5
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local ocsp_response=$6
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local ocsp_response_status=$7
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local sig_algo key_algo
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local expire days2expire secs2warn ocsp_uri crl startdate enddate issuer_C issuer_O issuer sans san cn cn_nosni
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local policy_oid
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local spaces=" "
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local wildcard=false
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outln
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pr_headlineln " Testing server defaults (Server Hello) "
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out " "
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if [[ $number_of_certificates -gt 1 ]]; then
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pr_headlineln " Server Certifcate #$certificate_number "
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pr_bold " Ciphers used with "
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outln "$cipherlist"
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else
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pr_headlineln " Server Certifcate "
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fi
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outln
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pr_bold " TLS server extensions (std) "
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[[ -z "$TLS_EXTENSIONS" ]] && determine_tls_extensions
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#extensions=$(grep -aw "^TLS server extension" $TMPFILE | sed -e 's/^TLS server extension \"//' -e 's/\".*$/,/g')
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if [[ -z "$TLS_EXTENSIONS" ]]; then
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outln "(none)"
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else
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#echo $extensions | sed 's/ /,/g'
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outln "$TLS_EXTENSIONS"
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fi
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cp "$TEMPDIR/$NODEIP.determine_tls_extensions.txt" $TMPFILE
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>$ERRFILE
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pr_bold " Session Tickets RFC 5077 "
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sessticket_str=$(grep -aw "session ticket" $TMPFILE | grep -a lifetime)
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if [[ -z "$sessticket_str" ]]; then
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outln "(none)"
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else
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lifetime=$(echo $sessticket_str | grep -a lifetime | sed 's/[A-Za-z:() ]//g')
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unit=$(echo $sessticket_str | grep -a lifetime | sed -e 's/^.*'"$lifetime"'//' -e 's/[ ()]//g')
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out "$lifetime $unit "
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pr_yellowln "(PFS requires session ticket keys to be rotated <= daily)"
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fi
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pr_bold " SSL Session ID support "
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if $NO_SSL_SESSIONID; then
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outln "no"
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else
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outln "yes"
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fi
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pr_bold " Server key size "
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keysize=$(grep -aw "^Server public key is" $TMPFILE | sed -e 's/^Server public key is //' -e 's/bit//' -e 's/ //')
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sig_algo=$($OPENSSL x509 -in $HOSTCERT -noout -text 2>>$ERRFILE | grep "Signature Algorithm" | sed 's/^.*Signature Algorithm: //' | sort -u )
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key_algo=$($OPENSSL x509 -in $HOSTCERT -noout -text 2>>$ERRFILE | awk -F':' '/Public Key Algorithm:/ { print $2 }' | sort -u )
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@ -2150,7 +2136,7 @@ run_server_defaults() {
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out "$cn"
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fi
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$OPENSSL s_client $STARTTLS $BUGS -connect $NODEIP:$PORT $PROXY $OPTIMAL_PROTO 2>>$ERRFILE </dev/null | awk '/-----BEGIN/,/-----END/ { print $0 }' >$HOSTCERT.nosni
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$OPENSSL s_client $STARTTLS $BUGS -cipher $cipher -connect $NODEIP:$PORT $PROXY $OPTIMAL_PROTO 2>>$ERRFILE </dev/null | awk '/-----BEGIN/,/-----END/ { print $0 }' >$HOSTCERT.nosni
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cn_nosni=""
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if [[ -s $HOSTCERT.nosni ]]; then
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if $OPENSSL x509 -in $HOSTCERT.nosni -noout -subject 2>>$ERRFILE | grep -wq CN; then
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@ -2276,10 +2262,10 @@ run_server_defaults() {
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outln " ($startdate --> $enddate)"
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pr_bold " # of certificates provided"; outln " $(get_all_certs)"
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pr_bold " # of certificates provided"; outln " $(get_all_certs $cipher)"
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pr_bold " Chain of trust"; out " (experim.) "
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determine_trust
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determine_trust $cipher
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pr_bold " Certificate Revocation List "
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crl="$($OPENSSL x509 -in $HOSTCERT -noout -text 2>>$ERRFILE | grep -A 4 "CRL Distribution" | grep URI | sed 's/^.*URI://')"
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@ -2300,10 +2286,10 @@ run_server_defaults() {
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[[ x"$ocsp_uri" == "x" ]] && pr_literedln "--" || echo "$ocsp_uri"
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pr_bold " OCSP stapling "
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if grep -a "OCSP response" $TMPFILE | grep -q "no response sent" ; then
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if grep -a "OCSP response" <<<"$ocsp_response" | grep -q "no response sent" ; then
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out " not offered"
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else
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if grep -a "OCSP Response Status" $TMPFILE | grep -q successful; then
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if grep -a "OCSP Response Status" <<<"$ocsp_response_status" | grep -q successful; then
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pr_litegreen " offered"
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else
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if $GOST_STATUS_PROBLEM; then
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@ -2311,23 +2297,116 @@ run_server_defaults() {
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ret=0
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else
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outln " not sure what's going on here, debug:"
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grep -aA 20 "OCSP response" $TMPFILE
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grep -aA 20 "OCSP response" <<<"$ocsp_response"
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ret=2
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fi
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fi
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fi
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outln
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# if we call tls_time before tmpfile_handle it throws an error because the function tls_sockets removed $TMPFILE
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# already -- and that was a different one -- means that would get overwritten anyway
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tmpfile_handle $FUNCNAME.txt
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tls_time
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return $ret
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}
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# FIXME: revoked, see checkcert.sh
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# FIXME: Trust (only CN)
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run_server_defaults() {
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local hexcode n ciph sslvers kx auth enc mac export filename match_found success hostcert1 newhostcert
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local sessticket_str=""
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local lifetime unit
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local i line
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local all_tls_extensions=""
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local certs_found=0
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local -a previous_hostcert keysize cipher cipherlist ocsp_response ocsp_response_status
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# aNULL - all
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# aSRP - not in 1.0.1h (in 1.0.1i)
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# aPSK - not in 0.9.8zh (in 1.0.0)
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# aKRB5 - not in 0.9.6m (in 0.9.7)
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$OPENSSL ciphers -V 'aRSA:aDSS:aDH:aECDH:aECDSA:aGOST' 2>>$ERRFILE | (while read hexcode n ciph sslvers kx auth enc mac export; do
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# $OPENSSL ciphers -V 'DHE-DSS-AES256-GCM-SHA384:ECDHE-RSA-AES256-SHA:ECDHE-ECDSA-AES256-GCM-SHA384:AES128-SHA' 2>>$ERRFILE | (while read hexcode n ciph sslvers kx auth enc mac export; do
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determine_tls_extensions "-cipher $ciph"
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success=$?
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if [[ success -eq 0 ]]; then
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# check to see if any new TLS extensions were returned and add any new ones to all_tls_extensions
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while read -d "\"" -r line; do
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if [[ $line != "" ]] && ! grep -q "$line" <<< "$all_tls_extensions"; then
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if [[ $all_tls_extensions == "" ]]; then
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all_tls_extensions="\"${line}\""
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else
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all_tls_extensions="${all_tls_extensions} \"${line}\""
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fi
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fi
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done <<<$TLS_EXTENSIONS
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cp "$TEMPDIR/$NODEIP.determine_tls_extensions.txt" $TMPFILE
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>$ERRFILE
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if [[ -z "$sessticket_str" ]]; then
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sessticket_str=$(grep -aw "session ticket" $TMPFILE | grep -a lifetime)
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fi
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# check whether the host's certificate has been seen before
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match_found=false
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i=1
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newhostcert=$(cat $HOSTCERT)
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while [[ $i -le $certs_found ]]; do
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if [ "$newhostcert" == "${previous_hostcert[i]}" ]; then
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match_found=true
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break;
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fi
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i=$(($i + 1))
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done
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if ! $match_found ; then
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certs_found=$(($certs_found + 1))
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cipher[certs_found]=$ciph
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cipherlist[certs_found]="$ciph"
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keysize[certs_found]=$(grep -aw "^Server public key is" $TMPFILE | sed -e 's/^Server public key is //' -e 's/bit//' -e 's/ //')
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ocsp_response[certs_found]=$(grep -aA 20 "OCSP response" $TMPFILE)
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ocsp_response_status[certs_found]=$(grep -a "OCSP Response Status" $TMPFILE)
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previous_hostcert[certs_found]=$newhostcert
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else
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cipherlist[i]="${cipherlist[i]} $ciph"
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fi
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fi
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done
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outln
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pr_headlineln " Testing server defaults (Server Hello) "
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outln
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pr_bold " TLS server extensions (std) "
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if [[ -z "$all_tls_extensions" ]]; then
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outln "(none)"
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else
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outln "$all_tls_extensions"
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fi
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pr_bold " Session Tickets RFC 5077 "
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if [[ -z "$sessticket_str" ]]; then
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outln "(none)"
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else
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lifetime=$(echo $sessticket_str | grep -a lifetime | sed 's/[A-Za-z:() ]//g')
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unit=$(echo $sessticket_str | grep -a lifetime | sed -e 's/^.*'"$lifetime"'//' -e 's/[ ()]//g')
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out "$lifetime $unit "
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pr_yellowln "(PFS requires session ticket keys to be rotated <= daily)"
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fi
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pr_bold " SSL Session ID support "
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if $NO_SSL_SESSIONID; then
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outln "no"
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else
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outln "yes"
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fi
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tls_time
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i=1
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while [[ $i -le $certs_found ]]; do
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echo "${previous_hostcert[i]}" > $HOSTCERT
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certificate_info "$i" "$certs_found" "${cipher[i]}" "${cipherlist[i]}" "${keysize[i]}" "${ocsp_response[i]}" "${ocsp_response_status[i]}"
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i=$(($i + 1))
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done)
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}
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# http://www.heise.de/security/artikel/Forward-Secrecy-testen-und-einrichten-1932806.html
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run_pfs() {
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local -i sclient_success
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