mirror of
https://github.com/mozilla/cipherscan.git
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Merge d7a7458667 into 74dd82e8ad
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floatingatoll
GitHub
commit
f79484c45d
240
cipherscan
240
cipherscan
@ -487,17 +487,67 @@ parse_openssl_output() {
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fi
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}
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flatten_or_join_array_by_char() {
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# Two or less parameters (join + 0 or 1 value), then no need to join; return the string.
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if (( $# <= 2 )); then
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joined_array="$2"
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return
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fi
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# Discard the join string (usually ':', could be others).
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local join_by="$1"
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shift
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local found_many=''
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local last_value=''
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for each_value in "$@"; do
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if [[ -z $last_value ]]; then
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# This is the first one, so store it.
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last_value="$each_value"
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continue
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fi
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if [[ $last_value != "$each_value" ]]; then
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# This one is different, so we found many. Stop checking.
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found_many=1
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break
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fi
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done
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if [[ -z $found_many ]]; then
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# We only found one, so emit that.
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joined_array="$1"
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return
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else
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# We found many, so join them by whatever.
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join_array_by_char "$join_by" "$@"
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# joined_array is now set. All done.
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return
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fi
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}
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TLS_VERSIONS_TO_TEST=(
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'-ssl2'
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'-ssl3'
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'-tls1'
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'-tls1_1'
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'-tls1_2'
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)
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# Connect to a target host with the selected ciphersuite
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test_cipher_on_target() {
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local sslcommand="$*"
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cipher=""
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local cmnd=""
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protocols=""
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pfs=""
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protocols=()
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versions=()
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previous_cipher=""
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certificates=""
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for tls_version in "-ssl2" "-ssl3" "-tls1" "-tls1_1" "-tls1_2"
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do
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declare -A sigalgs=()
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declare -A pfses=()
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declare -A tickethints=()
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declare -A ocspstaples=()
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declare -A trusteds=()
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declare -A pubkeys=()
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for tls_version in "${TLS_VERSIONS_TO_TEST[@]}"; do
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# sslv2 client hello doesn't support SNI extension
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# in SSLv3 mode OpenSSL just ignores the setting so it's ok
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# -status exception is ignored in SSLv2, go figure
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@ -602,24 +652,20 @@ test_cipher_on_target() {
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fi
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# handling of TLSv1.2 only cipher suites
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if [[ ! -z "$previous_cipher" ]] && [[ "$previous_cipher" != "$current_cipher" ]] && [[ "$current_cipher" != "0000" ]]; then
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unset protocols
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protocols=()
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fi
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previous_cipher=$current_cipher
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# connection succeeded, add TLS version to positive results
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if [[ -z "$protocols" ]]; then
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protocols=$current_protocol
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else
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protocols="$protocols,$current_protocol"
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fi
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protocols+=("$current_protocol")
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cipher=$current_cipher
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pfs=$current_pfs
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[[ -z $pfs ]] && pfs="None"
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pubkey=$current_pubkey
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sigalg=$current_sigalg
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trusted=$current_trusted
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tickethint=$current_tickethint
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ocspstaple=$current_ocspstaple
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[[ -z $current_pfs ]] && current_pfs="None"
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pfses[$current_protocol]="$current_pfs"
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pubkeys[$current_protocol]="$current_pubkey"
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sigalgs[$current_protocol]="$current_sigalg"
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trusteds[$current_protocol]=$current_trusted
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tickethints[$current_protocol]=$current_tickethint
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ocspstaples[$current_protocol]=$current_ocspstaple
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certificates="$current_certificates"
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# grab the cipher and PFS key size
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done
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@ -629,34 +675,146 @@ test_cipher_on_target() {
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verbose "handshake failed, no ciphersuite was returned"
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result='ConnectionFailure'
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return 2
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fi
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# Flatten the sigalgs list to a single item if every entry is the same.
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if (( ${#sigalgs[*]} > 1 )); then
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local sigalgs_values=()
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for each_protocol in "${protocols[@]}"; do
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sigalgs_values+=("${sigalgs[$each_protocol]}")
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done
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if [[ $OUTPUTFORMAT == 'json' ]]; then
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# Don't deduplicate for JSON.
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join_array_by_char ',' "${sigalgs_values[@]}"
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else
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flatten_or_join_array_by_char ',' "${sigalgs_values[@]}"
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fi
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sigalg="$joined_array"
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else
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# Just extract the one value that's present and use it.
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sigalg="${sigalgs[@]}"
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fi
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# Flatten the pfses list to a single item if every entry is the same.
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if (( ${#pfses[*]} > 1 )); then
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local pfses_values=()
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for each_protocol in "${protocols[@]}"; do
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pfses_values+=("${pfses[$each_protocol]}")
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done
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if [[ $OUTPUTFORMAT == 'json' ]]; then
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# Don't deduplicate for JSON.
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join_array_by_char ';' "${pfses_values[@]}"
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else
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flatten_or_join_array_by_char ';' "${pfses_values[@]}"
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fi
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pfs="$joined_array"
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else
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# Just extract the one value that's present and use it.
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pfs="${pfses[@]}"
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fi
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# Flatten the tickethints list to a single item if every entry is the same.
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if (( ${#tickethints[*]} > 1 )); then
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local tickethints_values=()
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for each_protocol in "${protocols[@]}"; do
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tickethints_values+=("${tickethints[$each_protocol]}")
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done
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if [[ $OUTPUTFORMAT == 'json' ]]; then
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# Don't deduplicate for JSON.
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join_array_by_char ',' "${tickethints_values[@]}"
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else
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flatten_or_join_array_by_char ',' "${tickethints_values[@]}"
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fi
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tickethint="$joined_array"
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else
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# Just extract the one value that's present and use it.
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tickethint="${tickethints[@]}"
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fi
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# Flatten the ocspstaples list to a single item if every entry is the same.
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if (( ${#ocspstaples[*]} > 1 )); then
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local ocspstaples_values=()
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for each_protocol in "${protocols[@]}"; do
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ocspstaples_values+=("${ocspstaples[$each_protocol]}")
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done
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if [[ $OUTPUTFORMAT == 'json' ]]; then
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# Don't deduplicate for JSON.
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join_array_by_char ',' "${ocspstaples_values[@]}"
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else
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flatten_or_join_array_by_char ',' "${ocspstaples_values[@]}"
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fi
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ocspstaple="$joined_array"
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else
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# Just extract the one value that's present and use it.
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ocspstaple="${ocspstaples[@]}"
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fi
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# Flatten the trusteds list to a single item if every entry is the same.
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if (( ${#trusteds[*]} > 1 )); then
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local trusteds_values=()
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for each_protocol in "${protocols[@]}"; do
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trusteds_values+=("${trusteds[$each_protocol]}")
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done
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if [[ $OUTPUTFORMAT == 'json' ]]; then
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# Don't deduplicate for JSON.
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join_array_by_char ',' "${trusteds_values[@]}"
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else
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flatten_or_join_array_by_char ',' "${trusteds_values[@]}"
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fi
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trusted="$joined_array"
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else
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# Just extract the one value that's present and use it.
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trusted="${trusteds[@]}"
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fi
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# Flatten the pubkeys list to a single item if every entry is the same.
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if (( ${#pubkeys[*]} > 1 )); then
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local pubkeys_values=()
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for each_protocol in "${protocols[@]}"; do
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pubkeys_values+=("${pubkeys[$each_protocol]}")
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done
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if [[ $OUTPUTFORMAT == 'json' ]]; then
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# Don't deduplicate for JSON.
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join_array_by_char ',' "${pubkeys_values[@]}"
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else
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flatten_or_join_array_by_char ',' "${pubkeys_values[@]}"
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fi
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pubkey="$joined_array"
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else
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# Just extract the one value that's present and use it.
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pubkey="${pubkeys[@]}"
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fi
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# Pre-join this, since we use it in a couple of places below.
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join_array_by_char ',' "${protocols[@]}"
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protocols_csv="$joined_array"
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# if cipher contains NONE, the cipher wasn't accepted
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elif [[ "$cipher" == '(NONE) ' ]]; then
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result="$cipher $protocols $pubkey $sigalg $trusted $tickethint $ocspstaple $pfs $current_curves $curves_ordering"
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if [[ "$cipher" == '(NONE) ' ]]; then
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result="$cipher $protocols_csv $pubkey $sigalg $trusted $tickethint $ocspstaple $pfs $current_curves $curves_ordering"
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verbose "handshake failed, server returned ciphersuite '$result'"
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return 1
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fi
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# the connection succeeded
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else
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current_curves="None"
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# if pfs uses ECDH, test supported curves
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if [[ $pfs =~ ECDH ]]; then
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has_curves="True"
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if [[ $TEST_CURVES == "True" ]]; then
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test_curves
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if [[ -n $ecc_ciphers ]]; then
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ecc_ciphers+=":"
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fi
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ecc_ciphers+="$cipher"
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else
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# resolve the openssl curve to the proper IANA name
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current_curves="$(get_curve_name "$(echo $pfs|cut -d ',' -f2)")"
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current_curves="None"
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# if pfs uses ECDH, test supported curves
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if [[ $pfs =~ ECDH ]]; then
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has_curves="True"
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if [[ $TEST_CURVES == "True" ]]; then
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test_curves
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if [[ -n $ecc_ciphers ]]; then
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ecc_ciphers+=":"
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fi
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ecc_ciphers+="$cipher"
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else
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# resolve the openssl curve to the proper IANA name
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current_curves="$(get_curve_name "$(echo $pfs|cut -d ',' -f2)")"
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fi
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result="$cipher $protocols $pubkey $sigalg $trusted $tickethint $ocspstaple $pfs $current_curves $curves_ordering"
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verbose "handshake succeeded, server returned ciphersuite '$result'"
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return 0
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fi
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result="$cipher $protocols_csv $pubkey $sigalg $trusted $tickethint $ocspstaple $pfs $current_curves $curves_ordering"
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verbose "handshake succeeded, server returned ciphersuite '$result'"
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return 0
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}
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# Calculate the average handshake time for a specific ciphersuite
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@ -978,15 +1136,13 @@ display_results_in_json() {
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echo -n "\"protocols\":[\"${cipher_arr[1]//,/\",\"}\"],"
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echo -n "\"pubkey\":[\"${cipher_arr[2]//,/\",\"}\"],"
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echo -n "\"sigalg\":[\"${cipher_arr[3]//,/\",\"}\"],"
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echo -n "\"trusted\":\"${cipher_arr[4]//,/\",\"}\","
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echo -n "\"trusted\":[\"${cipher_arr[4]//,/\",\"}\"],"
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if [[ -n $CAPATH ]]; then
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echo -n "\"certificates\":[${ciphercertificates[$ctr]}],"
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fi
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echo -n "\"ticket_hint\":\"${cipher_arr[5]}\","
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echo -n "\"ocsp_stapling\":\"${cipher_arr[6]}\","
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pfs="${cipher_arr[7]}"
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[[ -z $pfs ]] && pfs="None"
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echo -n "\"pfs\":\"$pfs\""
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echo -n "\"ticket_hint\":[\"${cipher_arr[5]//,/\",\"}\"],"
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echo -n "\"ocsp_stapling\":[\"${cipher_arr[6]//,/\",\"}\"],"
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echo -n "\"pfs\":[\"${cipher_arr[7]//\;/\",\"}\"]"
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if [[ "${cipher_arr[0]}" =~ ECDH ]]; then
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echo -n ","
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echo -n "\"curves\":[\"${cipher_arr[8]//,/\",\"}\"]"
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