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collect stats about compression and renegotiation
since no support for compression and support for renegotiation are necessary for the server to have a secure configuration, collect and report those two too
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commit
99a0b6be07
59
cipherscan
59
cipherscan
@ -195,6 +195,8 @@ declare -A sigalgs_fallback
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# array with preferred sigalgs for aRSA and aECDSA ciphers
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declare -a sigalgs_preferred_rsa
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declare -a sigalgs_preferred_ecdsa
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renegotiation=""
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compression=""
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# because running external commands like sleep incurs a fork penalty, we
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# first check if it is necessary
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@ -359,6 +361,8 @@ parse_openssl_output() {
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current_pubkey=0
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current_trusted="False"
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current_sigalg="None"
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current_renegotiation="False"
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current_compression=""
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certs_found=0
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current_raw_certificates=()
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@ -388,6 +392,19 @@ parse_openssl_output() {
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continue
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fi
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# renegotiation support
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if [[ $line =~ Secure\ Renegotiation\ IS\ supported ]]; then
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current_renegotiation="secure"
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fi
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if [[ $line =~ Secure\ Renegotiation\ IS\ NOT\ supported ]]; then
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current_renegotiation="insecure"
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fi
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# compression settings
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if [[ $line =~ Compression:\ (.*) ]]; then
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current_compression="${BASH_REMATCH[1]}"
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fi
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# extract the signing algorithm used in TLSv1.2 ephemeral kex
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if [[ $line =~ Peer\ signing\ digest ]]; then
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local match=($line)
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@ -840,6 +857,26 @@ display_results_in_terminal() {
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fi
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echo -e "Curves ordering: $curvesordering - fallback: $fallback_supported"
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fi
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if [[ $renegotiation ]]; then
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if [[ $renegotiation == "secure" ]]; then
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echo -e "Server ${c_green}supports${c_reset} secure renegotiation"
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else
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echo -e "Server ${c_red}DOESN'T${c_reset} support secure renegotiation"
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fi
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else
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echo "Renegotiation test error"
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fi
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if [[ $compression ]]; then
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if [[ $compression != "NONE" ]]; then
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color="${c_red}"
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else
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color="${c_green}"
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fi
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echo -e "Server supported compression methods:" \
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"${color}$compression${c_reset}"
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else
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echo -e "Supported compression methods ${c_red}test error${c_reset}"
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fi
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if [[ $TEST_KEX_SIGALG == "True" ]]; then
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echo
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@ -948,6 +985,18 @@ display_results_in_json() {
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echo -n ",\"curves_fallback\":\"$fallback_supported\""
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fi
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if [[ $renegotiation ]]; then
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echo -n ",\"renegotiation\":\"$renegotiation\""
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else
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echo -n ",\"renegotiation\":\"False\""
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fi
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if [[ $compression ]]; then
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echo -n ",\"compression\":\"$compression\""
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else
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echo -n ",\"compression\":\"False\""
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fi
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if [[ $TEST_KEX_SIGALG == "True" ]]; then
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echo -n ',"sigalgs":{'
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echo -n "\"ordering\":\"${sigalgs_ordering}\","
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@ -1260,6 +1309,16 @@ test_tls_tolerance() {
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tls_tolerance[$version]="False"
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else
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tls_tolerance[$version]="True $current_protocol $current_cipher $current_trusted"
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# collect renegotiation info
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if [[ $current_renegotiation != "False" ]]; then
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renegotiation="$current_renegotiation"
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fi
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# collect compression info
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if [[ $version == "big-TLSv1.2" || -z $compression ]]; then
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compression="$current_compression"
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fi
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fi
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done
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@ -138,6 +138,8 @@ fallback_ids[' '] = i
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pfssigalgfallback = defaultdict(int)
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pfssigalgs = defaultdict(int)
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pfssigalgsordering = defaultdict(int)
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compression = defaultdict(int)
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renegotiation = defaultdict(int)
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dsarsastack = 0
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total = 0
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for r,d,flist in os.walk(path):
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@ -161,6 +163,8 @@ for r,d,flist in os.walk(path):
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temppfssigalgordering = {}
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temppfssigalgfallback = {}
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temppfssigalgs = {}
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tempcompression = {}
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temprenegotiation = {}
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ciphertypes = 0
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AESGCM = False
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AESCBC = False
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@ -324,6 +328,13 @@ for r,d,flist in os.walk(path):
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except KeyError:
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pass
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""" get some extra data about server """
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if 'renegotiation' in results:
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temprenegotiation[results['renegotiation']] = 1
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if 'compression' in results:
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tempcompression[results['compression']] = 1
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""" loop over list of ciphers """
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for entry in results['ciphersuite']:
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@ -538,6 +549,12 @@ for r,d,flist in os.walk(path):
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for s in tempsigstats:
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sigalg[s] += 1
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for s in temprenegotiation:
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renegotiation[s] += 1
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for s in tempcompression:
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compression[s] += 1
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if len(tempticketstats) == 1:
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for s in tempticketstats:
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tickethint[s + " only"] += 1
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@ -785,6 +802,18 @@ for stat in sorted(pfssigalgfallback):
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percent = round(pfssigalgfallback[stat] / total * 100, 4)
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sys.stdout.write(stat.ljust(30) + " " + str(pfssigalgfallback[stat]).ljust(10) + str(percent).ljust(9) + "\n")
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print("\nRenegotiation Count Percent ")
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print("-------------------------+---------+--------")
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for stat in natural_sort(renegotiation):
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percent = round(renegotiation[stat] / total * 100, 4)
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sys.stdout.write(stat.ljust(25) + " " + str(renegotiation[stat]).ljust(10) + str(percent).ljust(9) + "\n")
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print("\nCompression Count Percent ")
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print("-------------------------+---------+--------")
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for stat in natural_sort(compression):
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percent = round(compression[stat] / total * 100, 4)
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sys.stdout.write(stat.ljust(25) + " " + str(compression[stat]).ljust(10) + str(percent).ljust(9) + "\n")
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print("\nTLS session ticket hint Count Percent ")
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print("-------------------------+---------+--------")
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for stat in natural_sort(tickethint):
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