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Commit Graph

198 Commits

Author SHA1 Message Date
Hubert Kario
65ad1a7385 force at least TLSv1.0 in curves tolerance test
because to advertise curves to server we need extensions and
extensions are only available in TLSv1.0 or later, we need to force
OpenSSL not to send SSLv2 compatible hello if it thinks it's ok to
do (when there are SSLv2 ciphers present in cipherstring it will try to)
2015-01-05 14:35:26 +01:00
Hubert Kario
b5ce264ea3 add support for testing supported curves
since early versions of 1.0.2 openssl supports -curves command line
option, it allows us to set the curves advertised as supported

use the same approach to testing: advertise all, check what server
accepts, remove the accepted from list, repeat. When server aborts
connection or selects non ECC cipher, we know that we've tested all.
2015-01-05 14:35:26 +01:00
Julien Vehent
a90fc8bc58 Merge pull request #43 from ScriptFanix/master
don't expect openssl to be in cwd
2014-12-30 15:36:11 -05:00
Vincent Riquer
b457951f5f don't expect openssl to be in cwd 2014-12-26 09:49:52 +01:00
Julien Vehent
ac15fc738d Update README.md 2014-12-25 13:50:10 -05:00
Julien Vehent
051f927fcd Merge branch 'master' of github.com:jvehent/cipherscan 2014-12-25 13:26:04 -05:00
Julien Vehent
904e311124 Fix OSX: require bash4, add openssl-darwin64 binary 2014-12-25 13:25:29 -05:00
Julien Vehent
b04cbc6b85 Merge pull request #42 from ScriptFanix/master
--nagios: run as a nagios plugin
2014-12-25 12:34:34 -05:00
Julien Vehent
4e74308c37 Merge pull request #41 from MikeDawg/master
Added usage print and exit if no options are given
2014-12-25 12:27:35 -05:00
Julien Vehent
008bd6af2b Merge pull request #38 from PeterMosmans/changeorder
Bugfix: correct flow when number of ciphers are loaded
2014-12-25 12:15:11 -05:00
Julien Vehent
726ef22552 Merge pull request #35 from PeterMosmans/openssl
Updated 64-bit OpenSSL binary (1.0.2 beta 4)
2014-12-25 12:11:01 -05:00
Julien Vehent
2d030775c4 Merge pull request #36 from PeterMosmans/symlinks
Make sure that custom openssl gets selected
2014-12-25 12:08:00 -05:00
Vincent Riquer
0e7996181a Don't expect scripts to be in working directory 2014-12-24 11:26:24 +01:00
Vincent Riquer
983f85d2d4 --nagios: run as a nagios plugin 2014-12-23 14:51:50 +01:00
Mike
c019ecd493 Added usage print and exit if no options are given 2014-12-17 13:06:06 -07:00
Peter Mosmans
81c1809463 corrected flow when number of ciphers was shown
First make sure that ${OPENSSLBIN} is correctly set
2014-11-22 18:36:24 +10:00
Peter Mosmans
558bf7c9e2 Make sure that custom openssl gets selected
Symlinks are now resolved (when readlink -f is available)
2014-11-14 10:49:16 +11:00
Peter Mosmans
c71828dc09 Updated 64-bit OpenSSL binary (1.0.2 beta 4)
Compiled for 64-bit-linux from the following source:
https://github.com/PeterMosmans/openssl/tree/1.0.2-chacha

Commands used:
./Configure linux-x86_64 no-shared zlib enable-gost enable-ec_nistp_64_gcc_128 enable-idea \
enable-md2 enable-rc5 enable-rfc3779 enable-ssl2 experimental-jpake
make depend
make
make report
2014-11-11 17:46:23 +11:00
Julien Vehent
818bf29b02 Merge pull request #33 from tomato42/cipherscan-fixes-3
Cipherscan fixes, speedups and saving of certificates (v3)
2014-11-05 12:36:33 -05:00
Hubert Kario
c4a8495a54 limit number of forks needed to speed up execution
bash has a built in regular expression processor, we can match
lines using =~

moreover, stuff that will match while being inside parentheses is
later available in the BASH_REMATCH array

the IFS (Internal Field Separator) by default includes space, tab and
new line, as such we can use it to split longer lines to separate
words, just as awk '{print $1}' can, just need to put the value to
an array for that

we also don't have to use $(echo $var) when assigning variables, $var
is enough

bash has also built in substitution engine, so we can do ${var/,/ & }
to switch all commas to ampersands when using the variable
2014-11-05 18:14:30 +01:00
Hubert Kario
9f06829486 make handling of self signed certs more robust
openssl sometimes will print the filename, then the error, and finish
with OK, matching the colon and space prevents from considering such
certs to be valid
2014-11-05 18:13:39 +01:00
Hubert Kario
4c22d50f0c few less forks in the script
again, we can use arrays and a bit advanced awk syntax to reduce
the number of forks necessary to run the script
2014-11-05 18:13:39 +01:00
Hubert Kario
0f576c1fbc don't calculate sha sums for the certificates over and over
we can use cksum to calculate simple checksum much faster than
with using openssl, so we can compute sums only once
2014-11-05 18:13:39 +01:00
Hubert Kario
1eae0cc71b use CApath for certificates and store certificates (v2)
CApath is about 20% faster than CAfile so use it, also
save the received certificates from the servers for later analysis
(proper hostname checking, looking for certificates sharing private key,
etc.)

Use the mechanism from cipherscan to find location of ca cert bundle
2014-11-05 18:13:39 +01:00
Hubert Kario
d9b718be12 clean up the extracted certificate
the certificate extracted in the above way will contain some junk
from openssl s_client output we don't want like verification status
we can remove it ro reduce disk usage for saved certificates
2014-11-05 18:13:39 +01:00
Hubert Kario
3e37517c96 add ability to also save leaf certificates and untrusted ones 2014-11-05 18:13:39 +01:00
Hubert Kario
826f7b5541 add caching of intermediate CA certificates 2014-11-05 18:13:39 +01:00
Hubert Kario
3b14cd914f no need to grep the input when we're using awk (v2)
awk has an inbuilt version of grep, also truncate processing as soon
as we find what we're looking for

This version uses slightly different syntax that is compatible with old
awk
2014-11-05 18:13:39 +01:00
Julien Vehent
dca3457d5a Merge pull request #28 from tomato42/certificate-stats
Certificate stats
2014-11-03 22:15:44 -05:00
Hubert Kario
5a6eaaac41 parse_CAs.c - implement error checking, remove magic numbers, compile fix 2014-10-30 23:37:43 +01:00
Hubert Kario
aac3e9a9db parse_CAs.py - add few comments 2014-10-30 01:41:46 +01:00
Hubert Kario
edab545f3e add Makefile for the C utility 2014-10-30 01:33:58 +01:00
Julien Vehent
ebc6939299 Merge pull request #29 from tomato42/client-handshake-simulation
Client handshake simulation
2014-10-29 19:22:52 -04:00
Julien Vehent
334c3118e2 Merge pull request #30 from tomato42/timeouts
Fix delay option
2014-10-29 17:34:18 -04:00
Hubert Kario
11ce6187de small fixes for delay
firstly, test_cipher_on_target() will try at least 4 connections before
incurring the sleep, for aggressive rate limiter on server side it may be
too much, so sleep before every connection

secondly, because running external commands like sleep incurs a fork
penalty, we first check if it is necessary
2014-10-28 16:44:43 +01:00
Hubert Kario
71ba3c88b0 increase timeout
when some servers notice a scan (because of frequent connections) they
delay further connections, increase the timeout to properly scan them
2014-10-28 13:17:20 +01:00
Hubert Kario
29c739faa9 count EDH-DES as PFS too in general stats 2014-10-25 16:23:41 +02:00
Hubert Kario
af2e25ec89 fix EDH checking
old ciphers have names that use EDH instead of DHE so we need check
for both names
2014-10-25 16:11:18 +02:00
Julien Vehent
d11d5e9f36 update old and intermediate ciphersuites 2014-10-18 08:31:53 -04:00
Julien Vehent
a17cfe373e make 2048 DHE key optional in intermediate level 2014-10-18 08:20:00 -04:00
Julien Vehent
ebf4f8bcc7 fix ECC size in fubar pfs analysis 2014-10-18 07:23:24 -04:00
Julien Vehent
244e9ca9f2 refactor pfs evaluation in separate function 2014-10-17 11:58:19 -04:00
Julien Vehent
ddfaa6722d display target level compliance in text output 2014-10-17 11:58:05 -04:00
Julien Vehent
551255f8b4 detect fubar dh parameters 2014-10-17 11:20:25 -04:00
Julien Vehent
a4f573195e update intermediate ciphersuite to accept 3des 2014-10-17 11:10:01 -04:00
Julien Vehent
df0b5d8d3f fix wrong failure flag 2014-10-17 11:09:42 -04:00
Julien Vehent
a11b594ab4 Fix dhparam size detection in inter and modern levels 2014-10-17 11:09:28 -04:00
Julien Vehent
28c6c2488b Accept sha384 and sha512 signatures as well as sha256 2014-10-17 11:08:32 -04:00
Julien Vehent
5b32afaa1f Add target to text output 2014-10-17 10:48:59 -04:00
Hubert Kario
76d791fcbe make cipher selection simulation generic
it's relatively easy to make the cipher selection generic,
so that adding different clients is as easy as converting their
client hello cipher ordering to openssl cipher names
2014-10-12 20:39:39 +02:00