mirror of
https://github.com/drwetter/testssl.sh.git
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Merge branch '2.9dev' of github.com:drwetter/testssl.sh into 2.9dev
This commit is contained in:
Dirk
commit
34053e27cd
196
testssl.sh
196
testssl.sh
@ -4660,6 +4660,80 @@ pr_ecdh_curve_quality() {
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fi
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}
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# Print $2 based on the quality of the cipher in $1. If $2 is empty, print $1.
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# The return value is an indicator of the quality of the cipher in $1:
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# 0 = $1 is empty
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# 1 = pr_svrty_critical, 2 = pr_svrty_high, 3 = pr_svrty_medium, 4 = pr_svrty_low
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# 5 = neither good nor bad, 6 = pr_done_good, 7 = pr_done_best
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pr_cipher_quality() {
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local cipher="$1"
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local text="$2"
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[[ -z "$1" ]] && return 0
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[[ -z "$text" ]] && text="$cipher"
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if [[ "$cipher" != TLS_* ]] && [[ "$cipher" != SSL_* ]]; then
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# This must be the OpenSSL name for a cipher
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if [[ $TLS_NR_CIPHERS -eq 0 ]]; then
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# We have the OpenSSL name and can't convert it to the RFC name
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case "$cipher" in
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*NULL*|*EXP*)
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pr_svrty_critical "$text"
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return 1
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;;
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*RC4*)
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pr_svrty_high "$text"
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return 2
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;;
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*CBC*)
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pr_svrty_medium "$text"
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return 3
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;; # FIXME BEAST: We miss some CBC ciphers here, need to work w/ a list
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*GCM*|*CHACHA20*)
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pr_done_best "$text"
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return 7
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;; #best ones
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ECDHE*AES*)
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pr_svrty_low "$text"
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return 4
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;; # it's CBC. --> lucky13
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*)
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out "$text"
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return 5
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;;
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esac
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fi
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cipher="$(openssl2rfc "$cipher")"
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fi
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case "$cipher" in
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*NULL*|*EXP*|*RC2*|*_DES_*|*_DES40_*)
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pr_svrty_critical "$text"
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return 1
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;;
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*RC4*)
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pr_svrty_high "$text"
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return 2
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;;
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*ECDHE*AES*CBC*)
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pr_svrty_low "$text"
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return 4
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;;
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*CBC*)
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pr_svrty_medium "$text"
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return 3
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;;
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*GCM*|*CHACHA20*)
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pr_done_best "$text"
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return 7
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;;
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*)
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out "$text"
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return 5
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;;
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esac
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}
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# arg1: file with input for grepping the bit length for ECDH/DHE
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# arg2: whether to print warning "old fart" or not (empty: no)
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read_dhbits_from_file() {
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@ -4876,28 +4950,24 @@ run_server_preference() {
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default_cipher="$(openssl2rfc "$default_cipher_ossl")"
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[[ -z "$default_cipher" ]] && default_cipher="$default_cipher_ossl"
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fi
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case "$default_cipher_ossl" in
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*NULL*|*EXP*)
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pr_svrty_critical "$default_cipher"
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pr_cipher_quality "$default_cipher"
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case $? in
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1)
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fileout "order_cipher" "CRITICAL" "Default cipher: $default_cipher$(read_dhbits_from_file "$TMPFILE") $remark4default_cipher"
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;;
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*RC4*)
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pr_svrty_high "$default_cipher"
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2)
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fileout "order_cipher" "HIGH" "Default cipher: $default_cipher$(read_dhbits_from_file "$TMPFILE") $remark4default_cipher"
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;;
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*CBC*)
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pr_svrty_medium "$default_cipher"
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3)
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fileout "order_cipher" "MEDIUM" "Default cipher: $default_cipher$(read_dhbits_from_file "$TMPFILE") $remark4default_cipher"
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;; # FIXME BEAST: We miss some CBC ciphers here, need to work w/ a list
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*GCM*|*CHACHA20*)
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pr_done_best "$default_cipher"
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;;
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6|7)
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fileout "order_cipher" "OK" "Default cipher: $default_cipher$(read_dhbits_from_file "$TMPFILE") $remark4default_cipher"
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;; # best ones
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ECDHE*AES*)
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pr_svrty_low "$default_cipher"
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4)
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fileout "order_cipher" "LOW" "Default cipher: $default_cipher$(read_dhbits_from_file "$TMPFILE") (cbc) $remark4default_cipher"
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;; # it's CBC. --> lucky13
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"")
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0)
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pr_warning "default cipher empty" ;
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if [[ $OSSL_VER == 1.0.2* ]]; then
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out " (Hint: if IIS6 give OpenSSL 1.0.1 a try)"
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@ -4907,7 +4977,6 @@ run_server_preference() {
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fi
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;;
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*)
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out "$default_cipher"
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fileout "order_cipher" "INFO" "Default cipher: $default_cipher$(read_dhbits_from_file "$TMPFILE") $remark4default_cipher"
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;;
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esac
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@ -5894,6 +5963,50 @@ compare_server_name_to_cert()
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return $ret
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}
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must_staple() {
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local json_prefix="$2"
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local cert extn
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local -i extn_len
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local supported=false
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# Note this function is only looking for status_request (5) and not
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# status_request_v2 (17), since OpenSSL seems to only include status_request (5)
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# in its ClientHello when the "-status" option is used.
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# OpenSSL 1.1.0 supports pretty-printing the "TLS Feature extension." For any
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# previous versions of OpenSSL, OpenSSL can only show if the extension OID is present.
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if $OPENSSL x509 -in "$HOSTCERT" -noout -text 2>>$ERRFILE | grep -A 1 "TLS Feature:" | grep -q "status_request"; then
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# FIXME: This will indicate that must staple is supported if the
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# certificate indicates status_request or status_request_v2. This is
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# probably okay, since it seems likely that any TLS Feature extension
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# that includes status_request_v2 will also include status_request.
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supported=true
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elif $OPENSSL x509 -in "$HOSTCERT" -noout -text 2>>$ERRFILE | grep -q "1.3.6.1.5.5.7.1.24:"; then
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cert="$($OPENSSL x509 -in "$HOSTCERT" -outform DER 2>>$ERRFILE | hexdump -v -e '16/1 "%02X"')"
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extn="${cert##*06082B06010505070118}"
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# Check for critical bit, and skip over it if present.
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[[ "${extn:0:6}" == "0101FF" ]] && extn="${extn:6}"
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# Next is tag and length of extnValue OCTET STRING. Assume it is less than 128 bytes.
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extn="${extn:4}"
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# The TLS Feature is a SEQUENCE of INTEGER. Get the length of the SEQUENCE
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extn_len=2*$(hex2dec "${extn:2:2}")
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# If the extension include the status_request (5), then it supports must staple.
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if [[ "${extn:4:extn_len}" =~ "020105" ]]; then
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supported=true
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fi
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fi
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if "$supported"; then
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pr_done_bestln "Supported"
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fileout "${json_prefix}ocsp_must_staple" "OK" "OCSP must staple : supported"
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return 0
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else
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outln "No"
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fileout "${json_prefix}ocsp_must_staple" "INFO" "OCSP must staple : no"
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return 1
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fi
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}
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certificate_info() {
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local proto
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local -i certificate_number=$1
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@ -5904,7 +6017,8 @@ certificate_info() {
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local ocsp_response_status=$6
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local sni_used=$7
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local cert_sig_algo cert_sig_hash_algo cert_key_algo
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local expire days2expire secs2warn ocsp_uri crl startdate enddate issuer_CN issuer_C issuer_O issuer sans san all_san="" cn
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local expire days2expire secs2warn ocsp_uri ocsp_must_staple crl
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local startdate enddate issuer_CN issuer_C issuer_O issuer sans san all_san="" cn
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local issuer_DC issuerfinding cn_nosni=""
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local cert_fingerprint_sha1 cert_fingerprint_sha2 cert_fingerprint_serial
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local policy_oid
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@ -6423,10 +6537,22 @@ certificate_info() {
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fileout "${json_prefix}ocsp_uri" "INFO" "OCSP URI : $ocsp_uri"
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fi
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out "$indent"; pr_bold " OCSP must staple ";
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must_staple "$json_prefix"
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[[ $? -eq 0 ]] && ocsp_must_staple=true || ocsp_must_staple=false
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out "$indent"; pr_bold " OCSP stapling "
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if grep -a "OCSP response" <<<"$ocsp_response" | grep -q "no response sent" ; then
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pr_svrty_low "--"
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fileout "${json_prefix}ocsp_stapling" "LOW" "OCSP stapling : not offered"
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if "$ocsp_must_staple"; then
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pr_svrty_critical "--"
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fileout "${json_prefix}ocsp_stapling" "CRITICAL" "OCSP stapling : not offered"
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elif [[ -n "$ocsp_uri" ]]; then
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pr_svrty_low "--"
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fileout "${json_prefix}ocsp_stapling" "LOW" "OCSP stapling : not offered"
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else
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out "--"
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fileout "${json_prefix}ocsp_stapling" "INFO" "OCSP stapling : not offered"
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fi
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else
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if grep -a "OCSP Response Status" <<<"$ocsp_response_status" | grep -q successful; then
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pr_done_good "offered"
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@ -9350,9 +9476,6 @@ run_ccs_injection(){
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if [[ $DEBUG -ge 3 ]]; then
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outln "\n1st reply: "
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hexdump -C "$SOCK_REPLY_FILE" | head -20
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# ok: 15 | 0301 | 02 | 02 | 0a
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# ALERT | TLS 1.0 | Length=2 | Unexpected Message (0a)
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# or just timed out
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outln
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out "sending payload #2 with TLS version $tls_hexcode: "
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fi
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@ -9372,29 +9495,38 @@ run_ccs_injection(){
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outln
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fi
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# not ok: 15 | 0301 | 02 | 02 | 15
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# ALERT | TLS 1.0 | Length=2 | Decryption failed (21)
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# in general, see https://en.wikipedia.org/wiki/Transport_Layer_Security#Alert_protocol
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# https://tools.ietf.org/html/rfc5246#section-7.2
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#
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# ok: 0a or nothing: ==> RST
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# not ok fo CCSI: 15 | 0301 | 00 02 | 02 15
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# ALERT | TLS 1.0 | Length=2 | Decryption failed (21)
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#
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# ok: nothing: ==> RST
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#
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# 0A: Unexpected message
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# 28: Handshake failure
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if [[ -z "${tls_hello_ascii:0:12}" ]]; then
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# empty reply
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pr_done_best "not vulnerable (OK)"
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if [[ $retval -eq 3 ]]; then
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### what?
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fileout "ccs" "OK" "CCS: not vulnerable (timed out)" "$cve" "$cwe"
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else
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fileout "ccs" "OK" "CCS: not vulnerable" "$cve" "$cwe"
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fi
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ret=0
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elif [[ "$byte6" == "15" ]] && [[ "${tls_hello_ascii:0:4}" == "1503" ]]; then
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# decyption failed received
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pr_svrty_critical "VULNERABLE (NOT ok)"
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if [[ $retval -eq 3 ]]; then
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fileout "ccs" "CRITICAL" "CCS: VULNERABLE (timed out)" "$cve" "$cwe" "$hint"
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else
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fileout "ccs" "CRITICAL" "CCS: VULNERABLE" "$cve" "$cwe" "$hint"
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fi
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fileout "ccs" "CRITICAL" "CCS: VULNERABLE" "$cve" "$cwe" "$hint"
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ret=1
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elif [[ "${tls_hello_ascii:0:4}" == "1503" ]]; then
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if [[ "$byte6" == "0A" ]] || [[ "$byte6" == "28" ]]; then
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# Unexpected message / Handshake failure received
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pr_warning "likely "
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out "not vulnerable (OK)"
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out " - alert description type: $byte6"
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fileout "ccs" "WARN" "CCS: probably not vulnerable but received 0x${byte6} instead of 0x15" "$cve" "$cwe" "$hint"
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fi
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elif [[ "$byte6" == [0-9a-f][0-9a-f] ]] && [[ "${tls_hello_ascii:2:2}" != "03" ]]; then
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pr_warning "test failed"
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out ", probably read buffer too small (${tls_hello_ascii:0:14})"
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@ -9402,8 +9534,8 @@ run_ccs_injection(){
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ret=7
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else
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pr_warning "test failed "
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out "around line $LINENO (debug info: ${tls_hello_ascii:0:14})"
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fileout "ccs" "WARN" "CCS: test failed, around line $LINENO, debug info (${tls_hello_ascii:0:14})" "$cve" "$cwe" "$hint"
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out "around line $LINENO (debug info: ${tls_hello_ascii:0:12},$byte6)"
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fileout "ccs" "WARN" "CCS: test failed, around line $LINENO, debug info (${tls_hello_ascii:0:12},$byte6)" "$cve" "$cwe" "$hint"
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ret=7
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fi
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outln
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