Merge pull request #12 from tomato42/certificate-scanning-02
Certificate scanning 02 (alternative version)
This commit is contained in:
Julien Vehent
commit
f703ca9c26
56
README.md
56
README.md
|
|
@ -44,38 +44,38 @@ Testing plain SSL/TLS:
|
|||
```
|
||||
linux $ ./cipherscan www.google.com:443
|
||||
...................
|
||||
prio ciphersuite protocols pfs_keysize
|
||||
1 ECDHE-RSA-CHACHA20-POLY1305 SSLv3,TLSv1,TLSv1.1,TLSv1.2 ECDH,P-256,256bits
|
||||
2 ECDHE-RSA-AES128-GCM-SHA256 SSLv3,TLSv1,TLSv1.1,TLSv1.2 ECDH,P-256,256bits
|
||||
3 ECDHE-RSA-RC4-SHA SSLv3,TLSv1,TLSv1.1,TLSv1.2 ECDH,P-256,256bits
|
||||
4 ECDHE-RSA-AES128-SHA SSLv3,TLSv1,TLSv1.1,TLSv1.2 ECDH,P-256,256bits
|
||||
5 AES128-GCM-SHA256 SSLv3,TLSv1,TLSv1.1,TLSv1.2
|
||||
6 RC4-SHA SSLv3,TLSv1,TLSv1.1,TLSv1.2
|
||||
7 RC4-MD5 SSLv3,TLSv1,TLSv1.1,TLSv1.2
|
||||
8 ECDHE-RSA-AES256-GCM-SHA384 SSLv3,TLSv1,TLSv1.1,TLSv1.2 ECDH,P-256,256bits
|
||||
9 ECDHE-RSA-AES256-SHA384 SSLv3,TLSv1,TLSv1.1,TLSv1.2 ECDH,P-256,256bits
|
||||
10 ECDHE-RSA-AES256-SHA SSLv3,TLSv1,TLSv1.1,TLSv1.2 ECDH,P-256,256bits
|
||||
11 AES256-GCM-SHA384 SSLv3,TLSv1,TLSv1.1,TLSv1.2
|
||||
12 AES256-SHA256 SSLv3,TLSv1,TLSv1.1,TLSv1.2
|
||||
13 AES256-SHA SSLv3,TLSv1,TLSv1.1,TLSv1.2
|
||||
14 ECDHE-RSA-DES-CBC3-SHA SSLv3,TLSv1,TLSv1.1,TLSv1.2 ECDH,P-256,256bits
|
||||
15 DES-CBC3-SHA SSLv3,TLSv1,TLSv1.1,TLSv1.2
|
||||
16 ECDHE-RSA-AES128-SHA256 SSLv3,TLSv1,TLSv1.1,TLSv1.2 ECDH,P-256,256bits
|
||||
17 AES128-SHA256 SSLv3,TLSv1,TLSv1.1,TLSv1.2
|
||||
18 AES128-SHA SSLv3,TLSv1,TLSv1.1,TLSv1.2
|
||||
prio ciphersuite protocols pubkey_size signature_algorithm trusted pfs_keysize
|
||||
1 ECDHE-RSA-CHACHA20-POLY1305 TLSv1.2 2048 sha1WithRSAEncryption True ECDH,P-256,256bits
|
||||
2 ECDHE-RSA-AES128-GCM-SHA256 TLSv1.2 2048 sha1WithRSAEncryption True ECDH,P-256,256bits
|
||||
3 ECDHE-RSA-AES128-SHA TLSv1.1,TLSv1.2 2048 sha1WithRSAEncryption True ECDH,P-256,256bits
|
||||
4 ECDHE-RSA-RC4-SHA SSLv3,TLSv1,TLSv1.1,TLSv1.2 2048 sha1WithRSAEncryption True ECDH,P-256,256bits
|
||||
5 AES128-GCM-SHA256 TLSv1.2 2048 sha1WithRSAEncryption True
|
||||
6 AES128-SHA256 TLSv1.2 2048 sha1WithRSAEncryption True
|
||||
7 AES128-SHA TLSv1.1,TLSv1.2 2048 sha1WithRSAEncryption True
|
||||
8 RC4-SHA SSLv3,TLSv1,TLSv1.1,TLSv1.2 2048 sha1WithRSAEncryption True
|
||||
9 RC4-MD5 SSLv3,TLSv1,TLSv1.1,TLSv1.2 2048 sha1WithRSAEncryption True
|
||||
10 ECDHE-RSA-AES256-GCM-SHA384 TLSv1.2 2048 sha1WithRSAEncryption True ECDH,P-256,256bits
|
||||
11 ECDHE-RSA-AES256-SHA384 TLSv1.2 2048 sha1WithRSAEncryption True ECDH,P-256,256bits
|
||||
12 ECDHE-RSA-AES256-SHA SSLv3,TLSv1,TLSv1.1,TLSv1.2 2048 sha1WithRSAEncryption True ECDH,P-256,256bits
|
||||
13 AES256-GCM-SHA384 TLSv1.2 2048 sha1WithRSAEncryption True
|
||||
14 AES256-SHA256 TLSv1.2 2048 sha1WithRSAEncryption True
|
||||
15 AES256-SHA SSLv3,TLSv1,TLSv1.1,TLSv1.2 2048 sha1WithRSAEncryption True
|
||||
16 ECDHE-RSA-DES-CBC3-SHA SSLv3,TLSv1,TLSv1.1,TLSv1.2 2048 sha1WithRSAEncryption True ECDH,P-256,256bits
|
||||
17 DES-CBC3-SHA SSLv3,TLSv1,TLSv1.1,TLSv1.2 2048 sha1WithRSAEncryption True
|
||||
18 ECDHE-RSA-AES128-SHA256 TLSv1.2 2048 sha1WithRSAEncryption True ECDH,P-256,256bits
|
||||
```
|
||||
|
||||
Testing STARTTLS:
|
||||
```
|
||||
darwin $ ./cipherscan -o ./openssl-mine -starttls xmpp jabber.ccc.de:5222
|
||||
.........
|
||||
prio ciphersuite protocols pfs_keysize
|
||||
1 DHE-RSA-AES256-SHA SSLv3,TLSv1 DH,1024bits
|
||||
2 AES256-SHA SSLv3,TLSv1
|
||||
3 EDH-RSA-DES-CBC3-SHA SSLv3,TLSv1 DH,1024bits
|
||||
4 DES-CBC3-SHA SSLv3,TLSv1
|
||||
5 DHE-RSA-AES128-SHA SSLv3,TLSv1 DH,1024bits
|
||||
6 AES128-SHA SSLv3,TLSv1
|
||||
7 RC4-SHA SSLv3,TLSv1
|
||||
8 RC4-MD5 SSLv3,TLSv1
|
||||
prio ciphersuite protocols pubkey_size signature_algorithm trusted pfs_keysize
|
||||
1 DHE-RSA-AES256-SHA SSLv3,TLSv1 2048 sha1WithRSAEncryption False DH,1024bits
|
||||
2 AES256-SHA SSLv3,TLSv1 2048 sha1WithRSAEncryption False
|
||||
3 EDH-RSA-DES-CBC3-SHA SSLv3,TLSv1 2048 sha1WithRSAEncryption False DH,1024bits
|
||||
4 DES-CBC3-SHA SSLv3,TLSv1 2048 sha1WithRSAEncryption False
|
||||
5 DHE-RSA-AES128-SHA SSLv3,TLSv1 2048 sha1WithRSAEncryption False DH,1024bits
|
||||
6 AES128-SHA SSLv3,TLSv1 2048 sha1WithRSAEncryption False
|
||||
7 RC4-SHA SSLv3,TLSv1 2048 sha1WithRSAEncryption False
|
||||
8 RC4-MD5 SSLv3,TLSv1 2048 sha1WithRSAEncryption False
|
||||
```
|
||||
|
|
|
|||
90
cipherscan
90
cipherscan
|
|
@ -8,6 +8,10 @@
|
|||
DOBENCHMARK=0
|
||||
BENCHMARKITER=30
|
||||
OPENSSLBIN="$(dirname $0)/openssl"
|
||||
CACERTS=${CACERTS:-/etc/pki/tls/certs/ca-bundle.crt}
|
||||
if [ ! -e "$CACERTS" ]; then
|
||||
echo "Warning: CA Certificates not found at $CACERTS, export CACERTS variable with location of your trust anchors" 1>&2
|
||||
fi
|
||||
CIPHERSUITE="ALL:COMPLEMENTOFALL"
|
||||
DEBUG=0
|
||||
VERBOSE=0
|
||||
|
|
@ -64,6 +68,7 @@ test_cipher_on_target() {
|
|||
cipher=""
|
||||
protocols=""
|
||||
pfs=""
|
||||
previous_cipher=""
|
||||
for tls_version in "-ssl2" "-ssl3" "-tls1" "-tls1_1" "-tls1_2"
|
||||
do
|
||||
debug echo \"quit\\n\" \| $sslcommand $tls_version
|
||||
|
|
@ -71,10 +76,32 @@ test_cipher_on_target() {
|
|||
current_cipher=$(grep "New, " <<<"$tmp"|awk '{print $5}')
|
||||
current_pfs=$(grep 'Server Temp Key' <<<"$tmp"|awk '{print $4$5$6$7}')
|
||||
current_protocol=$(egrep "^\s+Protocol\s+:" <<<"$tmp"|awk '{print $3}')
|
||||
current_pubkey=$(grep 'Server public key is ' <<<"$tmp"|awk '{print $5}')
|
||||
if [ -z $current_pubkey ]; then
|
||||
current_pubkey=0
|
||||
fi
|
||||
current_sigalg=$(openssl x509 -noout -text 2>/dev/null <<<"$tmp"|grep Signature\ Algorithm | head -n 1 | awk '{print $3}') || current_sigalg="None"
|
||||
grep 'Verify return code: 0 ' <<<"$tmp" >/dev/null
|
||||
if [ $? -eq 0 ]; then
|
||||
current_trusted="True"
|
||||
else
|
||||
current_trusted="False"
|
||||
fi
|
||||
if [ -z $current_sigalg ]; then
|
||||
current_sigalg=None
|
||||
fi
|
||||
if [[ -z "$current_protocol" || "$current_cipher" == '(NONE)' ]]; then
|
||||
# connection failed, try again with next TLS version
|
||||
continue
|
||||
else
|
||||
verbose "connection successful; protocol: $current_protocol, cipher: $current_cipher, previous cipher: $previous_cipher"
|
||||
fi
|
||||
# handling of TLSv1.2 only cipher suites
|
||||
if [ ! -z "$previous_cipher" ] && [ "$previous_cipher" != "$current_cipher" ] && [ "$current_cipher" != "0000" ]; then
|
||||
unset protocols
|
||||
fi
|
||||
previous_cipher=$current_cipher
|
||||
|
||||
# connection succeeded, add TLS version to positive results
|
||||
if [ -z "$protocols" ]; then
|
||||
protocols=$current_protocol
|
||||
|
|
@ -83,6 +110,9 @@ test_cipher_on_target() {
|
|||
fi
|
||||
cipher=$current_cipher
|
||||
pfs=$current_pfs
|
||||
pubkey=$current_pubkey
|
||||
sigalg=$current_sigalg
|
||||
trusted=$current_trusted
|
||||
# grab the cipher and PFS key size
|
||||
done
|
||||
# if cipher is empty, that means none of the TLS version worked with
|
||||
|
|
@ -94,13 +124,13 @@ test_cipher_on_target() {
|
|||
|
||||
# if cipher contains NONE, the cipher wasn't accepted
|
||||
elif [ "$cipher" == '(NONE) ' ]; then
|
||||
result="$cipher $protocols $pfs"
|
||||
result="$cipher $protocols $pubkey $sigalg $trusted $pfs"
|
||||
verbose "handshake failed, server returned ciphersuite '$result'"
|
||||
return 1
|
||||
|
||||
# the connection succeeded
|
||||
else
|
||||
result="$cipher $protocols $pfs"
|
||||
result="$cipher $protocols $pubkey $sigalg $trusted $pfs"
|
||||
verbose "handshake succeeded, server returned ciphersuite '$result'"
|
||||
return 0
|
||||
fi
|
||||
|
|
@ -133,7 +163,11 @@ bench_cipher() {
|
|||
get_cipher_pref() {
|
||||
[ "$OUTPUTFORMAT" == "terminal" ] && [ $DEBUG -lt 1 ] && echo -n '.'
|
||||
local ciphersuite="$1"
|
||||
local sslcommand="$OPENSSLBIN s_client $SCLIENTARGS -connect $TARGET -cipher $ciphersuite"
|
||||
if [ -e $CACERTS ]; then
|
||||
local sslcommand="$OPENSSLBIN s_client -CAfile $CACERTS $SCLIENTARGS -connect $TARGET -cipher $ciphersuite"
|
||||
else
|
||||
local sslcommand="$OPENSSLBIN s_client $SCLIENTARGS -connect $TARGET -cipher $ciphersuite"
|
||||
fi
|
||||
verbose "Connecting to '$TARGET' with ciphersuite '$ciphersuite'"
|
||||
test_cipher_on_target "$sslcommand"
|
||||
local success=$?
|
||||
|
|
@ -151,6 +185,10 @@ get_cipher_pref() {
|
|||
display_results_in_terminal() {
|
||||
# Display the results
|
||||
ctr=1
|
||||
local pubkey
|
||||
local sigalg
|
||||
local trusted
|
||||
local different=False
|
||||
for cipher in "${cipherspref[@]}"; do
|
||||
pciph=$(echo $cipher|awk '{print $1}')
|
||||
if [ $DOBENCHMARK -eq 1 ]; then
|
||||
|
|
@ -159,14 +197,37 @@ display_results_in_terminal() {
|
|||
else
|
||||
r="$ctr $cipher"
|
||||
fi
|
||||
if [ $ctr -eq 1 ]; then
|
||||
pubkey=$(awk '{print $3}' <<<$cipher)
|
||||
sigalg=$(awk '{print $4}' <<<$cipher)
|
||||
trusted=$(awk '{print $5}' <<<$cipher)
|
||||
else
|
||||
if [ "$pubkey" != "$(awk '{print $3}' <<<$cipher)" ]; then
|
||||
different=True
|
||||
fi
|
||||
if [ "$sigalg" != "$(awk '{print $4}' <<<$cipher)" ]; then
|
||||
different=True
|
||||
fi
|
||||
if [ "$trusted" != "$(awk '{print $5}' <<<$cipher)" ]; then
|
||||
different=True
|
||||
fi
|
||||
fi
|
||||
results=("${results[@]}" "$r")
|
||||
ctr=$((ctr+1))
|
||||
done
|
||||
|
||||
if [ $DOBENCHMARK -eq 1 ]; then
|
||||
header="prio ciphersuite protocols pfs_keysize avg_handshake_microsec"
|
||||
if [ $different == "True" ]; then
|
||||
header="prio ciphersuite protocols pubkey_size signature_algoritm trusted pfs_keysize avg_handshake_microsec"
|
||||
else
|
||||
header="prio ciphersuite protocols pfs_keysize avg_handshake_microsec"
|
||||
fi
|
||||
else
|
||||
header="prio ciphersuite protocols pfs_keysize"
|
||||
if [ $different == "True" ]; then
|
||||
header="prio ciphersuite protocols pubkey_size signature_algorithm trusted pfs_keysize"
|
||||
else
|
||||
header="prio ciphersuite protocols pfs_keysize"
|
||||
fi
|
||||
fi
|
||||
ctr=0
|
||||
for result in "${results[@]}"; do
|
||||
|
|
@ -174,8 +235,20 @@ display_results_in_terminal() {
|
|||
echo $header
|
||||
ctr=$((ctr+1))
|
||||
fi
|
||||
echo $result|grep -v '(NONE)'
|
||||
if [ $different == "True" ]; then
|
||||
echo $result|grep -v '(NONE)'
|
||||
else
|
||||
echo $result|grep -v '(NONE)'|awk '{print $1 " " $2 " " $3 " " $7}'
|
||||
fi
|
||||
done|column -t
|
||||
echo
|
||||
if [ $different != "True" ]; then
|
||||
if [ "$trusted" == "True" ]; then
|
||||
echo "Certificate: trusted, $pubkey bit, $sigalg signature"
|
||||
else
|
||||
echo "Certificate: UNTRUSTED, $pubkey bit, $sigalg signature"
|
||||
fi
|
||||
fi
|
||||
}
|
||||
|
||||
|
||||
|
|
@ -187,7 +260,10 @@ display_results_in_json() {
|
|||
[ $ctr -gt 0 ] && echo -n ','
|
||||
echo -n "{\"cipher\":\"$(echo $cipher|awk '{print $1}')\","
|
||||
echo -n "\"protocols\":[\"$(echo $cipher|awk '{print $2}'|sed 's/,/","/g')\"],"
|
||||
pfs=$(echo $cipher|awk '{print $3}')
|
||||
echo -n "\"pubkey\":[\"$(echo $cipher|awk '{print $3}'|sed 's/,/","/g')\"],"
|
||||
echo -n "\"sigalg\":[\"$(echo $cipher|awk '{print $4}'|sed 's/,/","/g')\"],"
|
||||
echo -n "\"trusted\":\"$(echo $cipher|awk '{print $5}'|sed 's/,/","/g')\","
|
||||
pfs=$(echo $cipher|awk '{print $6}')
|
||||
[ "$pfs" == "" ] && pfs="None"
|
||||
echo -n "\"pfs\":\"$pfs\"}"
|
||||
ctr=$((ctr+1))
|
||||
|
|
|
|||
Loading…
Reference in a new issue