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https://github.com/drwetter/testssl.sh.git
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Server side cipher preference
This commit is contained in:
Frank Breedijk
parent
1a19f73901
commit
edf56624c5
104
testssl.sh
104
testssl.sh
@ -2318,6 +2318,7 @@ run_server_preference() {
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# now reversed offline via tac, see https://github.com/thomassa/testssl.sh/commit/7a4106e839b8c3033259d66697893765fc468393 :
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local list_reverse="AES256-SHA256:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:DHE-DSS-AES256-GCM-SHA384:ECDHE-RSA-AES256-SHA:ECDHE-RSA-AES256-SHA384:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES128-SHA256:DHE-RSA-AES256-GCM-SHA384:DHE-RSA-AES128-SHA256:ECDHE-RSA-AES256-GCM-SHA384:ECDH-RSA-AES256-SHA:ECDH-RSA-AES128-SHA:ECDH-RSA-DES-CBC3-SHA:DHE-RSA-AES256-SHA:DHE-RSA-AES128-SHA:ECDHE-RSA-AES128-SHA:AES256-SHA:AES128-SHA256:AES128-SHA:RC4-SHA:DES-CBC-SHA:RC4-MD5:DES-CBC3-SHA"
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local has_cipher_order=true
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local isok
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outln
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pr_headlineln " Testing server preferences "
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@ -2330,6 +2331,7 @@ run_server_preference() {
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outln "$list_fwd . "
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has_cipher_order=false
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ret=6
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output_finding "order_bug" "$NODEIP" "$PORT" "WARN" "Could not determine server cipher order, no matching cipher in this list found (pls report this): $list_fwd"
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elif [[ -n "$STARTTLS_PROTOCOL" ]]; then
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# now it still could be that we hit this bug: https://github.com/drwetter/testssl.sh/issues/188
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# workaround is to connect with a protocol
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@ -2341,6 +2343,7 @@ run_server_preference() {
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outln "$list_fwd . "
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has_cipher_order=false
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ret=6
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output_finding "order_bug" "$NODEIP" "$PORT" "WARN" "Could not determine server cipher order, no matching cipher in this list found (pls report this): $list_fwd"
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fi
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fi
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@ -2353,9 +2356,11 @@ run_server_preference() {
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if [[ "$cipher1" != "$cipher2" ]]; then
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pr_litered "nope (NOT ok)"
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remark4default_cipher=" (limited sense as client will pick)"
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output_finding "order" "$NODEIP" "$PORT" "NOT OK" "Server does NOT set a cipher order (NOT ok)"
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else
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pr_green "yes (OK)"
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remark4default_cipher=""
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output_finding "order" "$NODEIP" "$PORT" "OK" "Server sets a cipher order (ok)"
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fi
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[[ $DEBUG -ge 2 ]] && out " $cipher1 | $cipher2"
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outln
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@ -2369,26 +2374,78 @@ run_server_preference() {
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fi
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default_proto=$(grep -aw "Protocol" $TMPFILE | sed -e 's/^.*Protocol.*://' -e 's/ //g')
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case "$default_proto" in
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*TLSv1.2) pr_greenln $default_proto ;;
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*TLSv1.1) pr_litegreenln $default_proto ;;
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*TLSv1) outln $default_proto ;;
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*SSLv2) pr_redln $default_proto ;;
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*SSLv3) pr_redln $default_proto ;;
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"") pr_litemagenta "default proto empty"; [[ $OSSL_VER == 1.0.2* ]] && outln " (Hint: if IIS6 give OpenSSL 1.01 a try)" ;;
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*) pr_litemagenta "FIXME line $LINENO: $default_proto" ;;
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*TLSv1.2)
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pr_greenln $default_proto
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output_finding "order_proto" "$NODEIP" "$PORT" "OK" "Default protocol TLS1.2 (OK)"
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;;
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*TLSv1.1)
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pr_litegreenln $default_proto
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output_finding "order_proto" "$NODEIP" "$PORT" "OK" "Default protocol TLS1.1 (OK)"
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;;
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*TLSv1)
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outln $default_proto
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output_finding "order_proto" "$NODEIP" "$PORT" "INFO" "Default protocol TLS1.0"
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;;
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*SSLv2)
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pr_redln $default_proto
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output_finding "order_proto" "$NODEIP" "$PORT" "NOT OK" "Default protocol SSLv2"
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;;
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*SSLv3)
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pr_redln $default_proto
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output_finding "order_proto" "$NODEIP" "$PORT" "NOT OK" "Default protocol SSLv3"
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;;
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"")
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pr_litemagenta "default proto empty"
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if [[ $OSSL_VER == 1.0.2* ]]; then
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outln " (Hint: if IIS6 give OpenSSL 1.01 a try)"
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output_finding "order_proto" "$NODEIP" "$PORT" "WARN" "Default protocol empty (Hint: if IIS6 give OpenSSL 1.01 a try)"
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else
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output_finding "order_proto" "$NODEIP" "$PORT" "WARN" "Default protocol empty"
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fi
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;;
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*)
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pr_litemagenta "FIXME line $LINENO: $default_proto"
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output_finding "order_proto" "$NODEIP" "$PORT" "WARN" "FIXME line $LINENO: $default_proto"
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;;
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esac
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pr_bold " Negotiated cipher "
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default_cipher=$(grep -aw "Cipher" $TMPFILE | egrep -avw "New|is" | sed -e 's/^.*Cipher.*://' -e 's/ //g')
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case "$default_cipher" in
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*NULL*|*EXP*) pr_red "$default_cipher" ;;
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*RC4*) pr_litered "$default_cipher" ;;
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*CBC*) pr_brown "$default_cipher" ;; # FIXME BEAST: We miss some CBC ciphers here, need to work w/ a list
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*GCM*) pr_green "$default_cipher" ;; # best ones
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*CHACHA20*) pr_green "$default_cipher" ;; # best ones
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ECDHE*AES*) pr_yellow "$default_cipher" ;; # it's CBC. --> lucky13
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"") pr_litemagenta "default cipher empty" ; [[ $OSSL_VER == 1.0.2* ]] && out " (Hint: if IIS6 give OpenSSL 1.01 a try)" ;;
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*) out "$default_cipher" ;;
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*NULL*|*EXP*)
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pr_red "$default_cipher"
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output_finding "order_cipher" "$NODEIP" "$PORT" "NOT OK" "Default cipher: $default_cipher$(read_dhbits_from_file "$TMPFILE") (NOT ok)\n$remark4default_cipher"
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;;
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*RC4*)
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pr_litered "$default_cipher"
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output_finding "order_cipher" "$NODEIP" "$PORT" "NOT OK" "Default cipher: $default_cipher$(read_dhbits_from_file "$TMPFILE") (NOT ok)\n$remark4default_cipher"
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;;
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*CBC*)
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pr_brown "$default_cipher"
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output_finding "order_cipher" "$NODEIP" "$PORT" "NOT OK" "Default cipher: $default_cipher$(read_dhbits_from_file "$TMPFILE") (NOT ok)\n$remark4default_cipher"
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;; # FIXME BEAST: We miss some CBC ciphers here, need to work w/ a list
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*GCM*|*CHACHA20*)
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pr_green "$default_cipher"
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output_finding "order_cipher" "$NODEIP" "$PORT" "OK" "Default cipher: $default_cipher$(read_dhbits_from_file "$TMPFILE") (OK)\n$remark4default_cipher"
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;; # best ones
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ECDHE*AES*)
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pr_yellow "$default_cipher"
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output_finding "order_cipher" "$NODEIP" "$PORT" "WARN" "Default cipher: $default_cipher$(read_dhbits_from_file "$TMPFILE") (cbc)\n$remark4default_cipher"
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;; # it's CBC. --> lucky13
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"")
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pr_litemagenta "default cipher empty" ;
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if [[ $OSSL_VER == 1.0.2* ]]; then
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out " (Hint: if IIS6 give OpenSSL 1.01 a try)"
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output_finding "order_cipher" "$NODEIP" "$PORT" "WARN" "Default cipher empty (Hint: if IIS6 give OpenSSL 1.01 a try)\n$remark4default_cipher"
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else
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output_finding "order_cipher" "$NODEIP" "$PORT" "WARN" "Default cipher empty\n$remark4default_cipher"
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fi
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;;
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*)
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out "$default_cipher"
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output_finding "order_cipher" "$NODEIP" "$PORT" "INFO" "Default cipher: $default_cipher$(read_dhbits_from_file "$TMPFILE")\n$remark4default_cipher"
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;;
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esac
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read_dhbits_from_file "$TMPFILE"
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outln "$remark4default_cipher"
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@ -2397,8 +2454,8 @@ run_server_preference() {
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pr_bold " Negotiated cipher per proto"; outln " $remark4default_cipher"
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i=1
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for p in ssl2 ssl3 tls1 tls1_1 tls1_2; do
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#locally_supported -"$p" " " || continue
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locally_supported -"$p" || continue
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#locally_supported -"$p" " " || continue
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locally_supported -"$p" || continue
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$OPENSSL s_client $STARTTLS -"$p" $BUGS -connect $NODEIP:$PORT $PROXY $SNI </dev/null 2>>$ERRFILE >$TMPFILE
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if sclient_connect_successful $? $TMPFILE; then
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proto[i]=$(grep -aw "Protocol" $TMPFILE | sed -e 's/^.*Protocol.*://' -e 's/ //g')
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@ -2443,6 +2500,7 @@ run_server_preference() {
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fi
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fi
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fi
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output_finding "order_${proto[i]}_cipher" "$NODEIP" "$PORT" "INFO" "Default cipher on ${proto[i]}: ${cipher[i]}\n$remark4default_cipher"
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done
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fi
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fi
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@ -2459,11 +2517,12 @@ run_server_preference() {
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cipher_pref_check() {
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local p proto protos
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local tested_cipher cipher
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local tested_cipher cipher order
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pr_bold " Cipher order"
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for p in ssl2 ssl3 tls1 tls1_1 tls1_2; do
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order=""
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$OPENSSL s_client $STARTTLS -"$p" $BUGS -connect $NODEIP:$PORT $PROXY $SNI </dev/null 2>$ERRFILE >$TMPFILE
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if sclient_connect_successful $? $TMPFILE; then
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tested_cipher=""
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@ -2473,14 +2532,17 @@ cipher_pref_check() {
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outln
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printf " %-10s %s " "$proto:" "$cipher"
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tested_cipher="-"$cipher
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order="$cipher"
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while true; do
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$OPENSSL s_client $STARTTLS -"$p" $BUGS -cipher "ALL:$tested_cipher" -connect $NODEIP:$PORT $PROXY $SNI </dev/null 2>>$ERRFILE >$TMPFILE
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sclient_connect_successful $? $TMPFILE || break
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cipher=$(grep -aw "Cipher" $TMPFILE | egrep -avw "New|is" | sed -e 's/^.*Cipher.*://' -e 's/ //g')
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out "$cipher "
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order+=" $cipher"
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tested_cipher="$tested_cipher:-$cipher"
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done
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fi
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[[ -z $order ]] || output_finding "order_$p" "$NODEIP" "$PORT" "INFO" "Default cipher order for protocol $p:\n$order"
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done
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outln
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@ -2489,18 +2551,22 @@ cipher_pref_check() {
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else
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protos=$($OPENSSL s_client -host $NODE -port $PORT $BUGS -nextprotoneg \"\" </dev/null 2>>$ERRFILE | grep -a "^Protocols " | sed -e 's/^Protocols.*server: //' -e 's/,//g')
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for p in $protos; do
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order=""
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$OPENSSL s_client -host $NODE -port $PORT $BUGS -nextprotoneg "$p" $PROXY </dev/null 2>>$ERRFILE >$TMPFILE
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cipher=$(grep -aw "Cipher" $TMPFILE | egrep -avw "New|is" | sed -e 's/^.*Cipher.*://' -e 's/ //g')
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printf " %-10s %s " "$p:" "$cipher"
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tested_cipher="-"$cipher
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order="$cipher"
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while true; do
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$OPENSSL s_client -cipher "ALL:$tested_cipher" -host $NODE -port $PORT $BUGS -nextprotoneg "$p" $PROXY </dev/null 2>>$ERRFILE >$TMPFILE
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sclient_connect_successful $? $TMPFILE || break
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cipher=$(grep -aw "Cipher" $TMPFILE | egrep -avw "New|is" | sed -e 's/^.*Cipher.*://' -e 's/ //g')
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out "$cipher "
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tested_cipher="$tested_cipher:-$cipher"
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order+=" $cipher"
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done
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outln
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outln
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[[ -z $order ]] || output_finding "order_spdy_$p" "$NODEIP" "$PORT" "INFO" "Default cipher order for SPDY protocol $p:\n$order"
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done
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fi
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