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7752023dc2
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157 Commits

Author SHA1 Message Date
Drew Noel
7752023dc2
Switch connect_ex result checks to use errno lookups (#289) 
* Switch connect_ex result checks to errno lookups

* Return errno strings, clean up comment
 2024-08-26 16:38:44 -04:00
Joe Testa
a6f02ae8e8 Added debugging output for key exchanges. 2024-08-26 16:25:32 -04:00
Daniel Lenski
bbbdf71e50
Recognize LANcom LCOS software and support ed448 key extraction (#277) 
* Include raw hostkey bytes in debug output

* Recognize LANcom LCOS software and support extraction of ssh-ed448 key type

LANcom router devices appear to be primarily used in Germany (see [1]
for examples on the public Internet), and they appear to support the
`ssh-ed448` key type which is documented in [2], but which has never
been supported by any as-yet-released version of OpenSSH.

[1] https://www.shodan.io/search?query=ssh+%22ed448%22
[2] https://datatracker.ietf.org/doc/html/rfc8709#name-public-key-format
 2024-07-06 20:56:24 -04:00
dreizehnutters
bc2a89eb11
fix for https://github.com/jtesta/ssh-audit/issues/280 (#281) 
* fix for https://github.com/jtesta/ssh-audit/issues/280

* changed json format to min. the damage for a change
 2024-07-05 10:49:16 -04:00
Daniel Lenski
d8f8b7c57c
Make HostKeyTest class reusable (#278) 
Because the `HostKeyTest` class was mutating its static/global
`HOST_KEY_TYPES` dict, this class could not actually be used more than once
in a single thread!

Rather than mutate this dict after parsing each key type
(`HOST_KEY_TYPES[host_key_type]['parsed'] = True`), the `perform_test`
method should simple add the parsed key types to a local `set()`.
 2024-07-05 10:11:18 -04:00
Joe Testa
e42961fa9a Added built-in policy for OpenSSH 9.8. 2024-07-02 21:31:36 -04:00
Joe Testa
dcbc43acdf Fixed crash when running with '-P' and '-T' options simultaneously. (#273) 2024-07-02 20:56:11 -04:00
Joe Testa
87e22ae26b Added IPv6 support for DHEat and connection rate tests. (#269) 2024-06-29 19:05:20 -04:00
Joe Testa
46ec4e3edc Added built-in policies for Ubuntu 24.04 LTS server and client. 2024-04-29 19:11:47 -04:00
Joe Testa
d19b154a46 Bumped version to v3.3.0-dev. 2024-04-22 17:57:26 -04:00
Joe Testa
68cf05d0ff Set version to 3.2.0 for release. 2024-04-22 16:32:57 -04:00
Joe Testa
2d9ddabcad Updated DHEat rate connection warning message. 2024-04-22 16:26:03 -04:00
Joe Testa
986f83653d Added multi-line real-time output for connection rate testing. 2024-04-22 13:56:50 -04:00
Joe Testa
3c459f1428 Revised connection rate warning during standard audits. 2024-04-22 11:58:52 -04:00
Joe Testa
46b89fff2e Sockets now time out after 30 seconds during connection rate testing. 2024-04-21 17:05:57 -04:00
Joe Testa
81718d1948 Fixed non-interactive connection rate tests. Revised warning for lack of connection throttling. 2024-04-21 15:08:38 -04:00
Joe Testa
8124c8e443 Added aes128-ocb@libassh.org cipher. 2024-04-18 21:09:02 -04:00
Joe Testa
b9f569fdf8 Added warnings for Windows platform. 2024-04-18 20:51:14 -04:00
Joe Testa
9126ae7d9c Improved DHEat statistics output. 2024-04-18 20:01:28 -04:00
Joe Testa
8190fe59d0 Added implementation for DHEat denial-of-service attack (CVE-2002-20001). (#211, #217) 2024-04-18 13:58:13 -04:00
Joe Testa
d7f8bf3e6d Updated notes on OpenSSH default key exchanges. (#258) 2024-03-19 18:24:22 -04:00
Joe Testa
3d403b1d70 Updated availability of algorithms in Dropbear. (#257) 2024-03-19 15:47:09 -04:00
Joe Testa
9fae870260 Added allow_larger_keys flag to custom policies to control whether targets can have larger keys, and added Docker tests to complete work started in PR #242. 2024-03-19 14:45:19 -04:00
Damian Szuberski
20873db596
use less-than instead of not-equal when comparing key sizes (#242) 
When evaluating policy compliance, use less-than operator so keys bigger
than expected (and hence very often better) don't fail policy
evaulation. This change reduces the amount of false-positives and allows
for more flexibility when hardening SSH installations.

Signed-off-by: szubersk <szuberskidamian@gmail.com>
 2024-03-19 14:38:27 -04:00
Joe Testa
3c31934ac7 Added tests and other cleanups resulting from merging PR #252. 2024-03-18 17:48:50 -04:00
yannik1015
5bd925ffc6
[WIP] Adding allowed algorithms (#252) 
* Added allowed policy fields

Added allowed fields for host keys kex ciphers and macs

* Adapted policy.py to newest dev version

* Added allow_algorithm_subset_and_reordering flag

* Removed allowed policy entries as they are redundant now

* Fixed call to append_error
 2024-03-18 17:41:17 -04:00
Joe Testa
7b3402b207 Added note that sntrup761x25519-sha512@openssh.com is the default OpenSSH kex since version 9.0. 2024-03-15 17:24:21 -04:00
Joe Testa
b70fb0bc4c Added built-in policies for Amazon Linux 2023, Debian 12, and Rocky Linux 9. 2024-03-15 16:24:36 -04:00
Joe Testa
db5104ecb8 Built-in policy change logs no longer printed within quotes. 2024-03-14 18:13:53 -04:00
Joe Testa
15078aaea9 Built-in policies now include a change log. 2024-03-14 17:58:16 -04:00
Joe Testa
f0874af4cd Split built-in policies from policy.py to builtin_policies.py. 2024-03-14 17:24:40 -04:00
Joe Testa
064b55e0c2 Added 1 new key exchange algorithm: gss-nistp384-sha384-* 2024-03-14 16:01:48 -04:00
Joe Testa
cb0f6b63d7 Fixed new pylint warnings. 2024-03-12 20:46:39 -04:00
Joe Testa
3313046714 Added built-in policy for OpenSSH 9.7. 2024-03-12 20:23:55 -04:00
Joe Testa
699739d42a Gracefully handle rare exceptions (i.e.: crashes) while performing GEX tests. 2024-02-17 13:44:06 -05:00
Joe Testa
20fbb706b0 The built-in man page (, ) is now available on Docker, PyPI, and Snap builds, in addition to the Windows build. (#231) 2024-02-16 22:40:53 -05:00
Joe Testa
73b669b49d Fixed parsing of ecdsa-sha2-nistp* CA signatures on host keys. Additionally, they are now flagged as potentially back-doored, just as standard host keys are. (#239) 2024-02-16 21:58:51 -05:00
Joe Testa
f326d58068 Disable color when the NO_COLOR environment variable is set. (#234) 2024-01-28 18:17:49 -05:00
Joe Testa
b72f6a420f Added note regarding general OpenSSH policies failing against platforms with back-ported features. (#236) 2024-01-28 17:37:21 -05:00
Joe Testa
44393c56b3 Expanded filter of CBC ciphers to flag for the Terrapin vulnerability. 2023-12-21 15:30:43 -05:00
Ville Skyttä
164356e776
Spelling fixes (#233) 2023-12-21 08:58:12 -05:00
Joe Testa
c8e075ad13 Bumped version number to v3.2.0-dev. 2023-12-20 15:41:03 -05:00
Joe Testa
dd91c2a41a Bumped version to 3.1.0 in preparation for stable release. Updated Change Log in README. 2023-12-20 13:12:13 -05:00
Joe Testa
bef8c6c0f7 Updated notes on fixing Terrapin vulnerability. 2023-12-20 12:11:55 -05:00
Joe Testa
75dbc03a77 Added 'additional_notes' field to JSON output. 2023-12-19 18:03:07 -05:00
Joe Testa
c9412cbb88 Added built-in policies for OpenSSH 9.5 and 9.6. 2023-12-19 17:42:43 -05:00
Joe Testa
a0f99942a2 Don't recommend enabling the chacha & CBC ciphers, nor ETM MACs in case the user disabled them to address the Terrapin vulnerability. (#229) 2023-12-19 17:16:58 -05:00
Joe Testa
c259a83782 Added note that when a target is properly configured against the Terrapin vulnerability that unpatched peers may still create vulnerable connections. Updated Ubuntu Server & Client 20.04 & 22.04 policies to include new key exchange markers related to Terrapin counter-measures. 2023-12-19 14:03:28 -05:00
Joe Testa
8e972c5e94 Added test for the Terrapin vulnerability (CVE-2023-48795) (#227). 2023-12-18 18:24:49 -05:00
Joe Testa
ba8e8a7e68 Re-organized option host key types for OpenSSH 9.2 to correspond with updated Debian 12 hardening guide. 2023-11-27 21:33:13 -05:00