Merge pull request #126 from tomato42/npn
Add support for collecting supported NPN protocols
This commit is contained in:
Julien Vehent [:ulfr]
GitHub
commit
197881da81
42
cipherscan
42
cipherscan
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@ -377,6 +377,7 @@ parse_openssl_output() {
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current_sigalg="None"
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current_renegotiation="False"
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current_compression=""
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current_npn="None"
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certs_found=0
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current_raw_certificates=()
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@ -399,6 +400,12 @@ parse_openssl_output() {
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continue
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fi
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# get NPN protocols
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if [[ $line =~ Protocols\ advertised\ by\ server:\ (.*) ]]; then
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current_npn="${BASH_REMATCH[1]// /}"
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continue
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fi
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# extract selected cipher
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if [[ $line =~ New,\ ]]; then
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local match=($line)
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@ -620,6 +627,7 @@ test_cipher_on_target() {
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trusted=$current_trusted
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tickethint=$current_tickethint
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ocspstaple=$current_ocspstaple
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npn="$current_npn"
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certificates="$current_certificates"
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# grab the cipher and PFS key size
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done
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@ -632,7 +640,7 @@ test_cipher_on_target() {
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# if cipher contains NONE, the cipher wasn't accepted
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elif [[ "$cipher" == '(NONE) ' ]]; then
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result="$cipher $protocols $pubkey $sigalg $trusted $tickethint $ocspstaple $pfs $current_curves $curves_ordering"
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result="$cipher $protocols $pubkey $sigalg $trusted $tickethint $ocspstaple $npn $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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@ -653,7 +661,7 @@ test_cipher_on_target() {
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current_curves="$(get_curve_name "$(echo $pfs|cut -d ',' -f2)")"
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fi
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fi
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result="$cipher $protocols $pubkey $sigalg $trusted $tickethint $ocspstaple $pfs $current_curves $curves_ordering"
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result="$cipher $protocols $pubkey $sigalg $trusted $tickethint $ocspstaple $npn $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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@ -693,7 +701,7 @@ get_cipher_pref() {
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sslcommand+=" -CAfile $CACERTS"
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fi
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sslcommand+=" -trusted_first -status $SCLIENTARGS -connect $TARGET"
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sslcommand+=" -cipher $ciphersuite"
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sslcommand+=" -cipher $ciphersuite -nextprotoneg http/1.1"
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verbose "Connecting to '$TARGET' with ciphersuite '$ciphersuite'"
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# If the connection succeeded with the current cipher, benchmark and store
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@ -728,6 +736,7 @@ display_results_in_terminal() {
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local sigalg
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local trusted
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local tickethint
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local npn
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local ocspstaple
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local curvesordering
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local different=False
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@ -771,8 +780,9 @@ display_results_in_terminal() {
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trusted="${cipher_data[4]}"
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tickethint="${cipher_data[5]}"
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ocspstaple="${cipher_data[6]}"
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if [[ $TEST_CURVES == "True" && -n ${cipher_data[9]} ]]; then
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curvesordering="${cipher_data[9]}"
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npn="${cipher_data[7]}"
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if [[ $TEST_CURVES == "True" && -n ${cipher_data[10]} ]]; then
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curvesordering="${cipher_data[10]}"
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fi
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else
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if [[ "$pubkey" != "${cipher_data[2]}" ]]; then
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@ -790,10 +800,14 @@ display_results_in_terminal() {
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if [[ "$ocspstaple" != "${cipher_data[6]}" ]]; then
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different=True
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fi
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if [[ -z $curvesordering && -n "${cipher_data[9]}" ]]; then
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curvesordering="${cipher_data[9]}"
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if [[ "$npn" != "${cipher_data[7]}" ]]; then
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different=True
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fi
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if [[ -n $curvesordering && "$curvesordering" != "${cipher_data[9]}" ]]; then
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if [[ -z $curvesordering && -n "${cipher_data[10]}" ]]; then
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curvesordering="${cipher_data[10]}"
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fi
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if [[ -n $curvesordering && "$curvesordering" != "${cipher_data[10]}" ]]; then
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echo "CURVESORDERING"
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different=True
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fi
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fi
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@ -803,7 +817,7 @@ display_results_in_terminal() {
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header="prio ciphersuite protocols"
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if [[ $different == "True" ]]; then
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header+=" pubkey_size signature_algoritm trusted ticket_hint ocsp_staple"
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header+=" pubkey_size signature_algoritm trusted ticket_hint ocsp_staple npn"
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fi
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header+=" pfs"
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if [[ $has_curves == "True" ]]; then
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@ -825,7 +839,7 @@ display_results_in_terminal() {
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echo "$result"|grep -v '(NONE)'
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else
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# prints priority, ciphersuite, protocols and pfs
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awk '!/(NONE)/{print $1 " " $2 " " $3 " " $9 " " $10}' <<<"$result"
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awk '!/(NONE)/{print $1 " " $2 " " $3 " " $10 " " $11}' <<<"$result"
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fi
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done|column -t
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echo
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@ -848,6 +862,7 @@ display_results_in_terminal() {
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if [[ $different != "True" ]]; then
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echo -e "Certificate: $trusted, $pubkey bits, $sigalg signature"
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echo "TLS ticket lifetime hint: $tickethint"
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echo "NPN protocols: $npn"
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fi
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if [[ $ocspstaple == "True" ]]; then
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echo -e "OCSP stapling: ${c_green}supported${c_reset}"
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@ -984,15 +999,16 @@ display_results_in_json() {
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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="${cipher_arr[7]}"
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echo -n "\"npn\":[\"${cipher_arr[7]//,/\",\"}\"],"
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pfs="${cipher_arr[8]}"
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[[ -z $pfs ]] && pfs="None"
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echo -n "\"pfs\":\"$pfs\""
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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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echo -n "\"curves\":[\"${cipher_arr[9]//,/\",\"}\"]"
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if [[ $TEST_CURVES == "True" ]]; then
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echo -n ","
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echo -n "\"curves_ordering\":\"${cipher_arr[9]}\""
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echo -n "\"curves_ordering\":\"${cipher_arr[10]}\""
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fi
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fi
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echo -n "}"
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@ -111,6 +111,7 @@ tickethint = defaultdict(int)
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eccfallback = defaultdict(int)
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eccordering = defaultdict(int)
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ecccurve = defaultdict(int)
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npn = defaultdict(int)
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ocspstaple = defaultdict(int)
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fallbacks = defaultdict(int)
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# array with indexes of fallback names for the matrix report
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@ -174,6 +175,7 @@ for r,d,flist in os.walk(path):
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tempeccfallback = "unknown"
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tempeccordering = "unknown"
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tempecccurve = {}
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tempnpn = {}
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tempfallbacks = {}
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""" supported ciphers by the server under scan """
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tempcipherstats = {}
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@ -500,6 +502,13 @@ for r,d,flist in os.walk(path):
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elif protocol == 'TLSv1.2':
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TLS1_2 = True
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# save NPN protocols supported
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if 'npn' in entry:
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for proto in entry['npn']:
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tempnpn[proto] = 1
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if len(entry['npn']) == 1:
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tempnpn[proto + ' Only'] = 1
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""" save ECC curves stats """
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if 'curves_ordering' in entry:
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tempeccordering = entry['curves_ordering']
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@ -593,6 +602,9 @@ for r,d,flist in os.walk(path):
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for s in tempecccurve:
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ecccurve[s] += 1
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for s in tempnpn:
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npn[s] += 1
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if ocsp_stapling is None:
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ocspstaple['Unknown'] += 1
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elif ocsp_stapling:
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@ -796,6 +808,12 @@ for stat in sorted(handshakestats):
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percent = round(handshakestats[stat] / total * 100, 4)
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sys.stdout.write(stat.ljust(25) + " " + str(handshakestats[stat]).ljust(10) + str(percent).ljust(4) + "\n")
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print("\nSupported NPN protocols Count Percent ")
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print("-------------------------+---------+--------")
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for name, val in sorted(npn.items()):
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percent = round(val / total * 100, 4)
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sys.stdout.write(name.ljust(25) + " " + str(val).ljust(10) + str(percent).ljust(9) + "\n")
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print("\nSupported PFS Count Percent PFS Percent")
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print("-------------------------+---------+--------+-----------")
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for stat in sorted(pfsstats):
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