Rule:

--
Sid:
1812

--
Summary:
Secure Shell (SSH) is used to remotely manage systems over encrypted TCP sessions. This event is generated when an attempt is made to exploit vulnerable versions of the SSH daemon.

--
Impact:
System compromize presenting the attacker with either the opportunity to
execute arbitrary code with the privileges of the user running the SSH daemon (usually root) or a possible Denial of Service (DoS).

--
Detailed Information:
OpenSSH versions prior to 3.3 contain a flaw that could allow a remote attacker to compromise a vulnerable SSH daemon via an integer overflow on systems with BSD_AUTH or SKEY options compiled and PAM authentication or Challenge Response Authentication enabled.

--
Affected Systems:
OpenSSH versions 2.9 to 3.2

--
Attack Scenarios:
Exploit scripts are available

--
Ease of Attack:
Simple. Exploits are available.

--
False Positives:
None Known

--
False Negatives:
None Known

--
Corrective Action:
Upgrade to the latest non-affected version of the software.

Apply the appropriate vendor supplied patches.

Enable the privilege separation option in OpenSSH 3.3 if possible.

--
Contributors:
Sourcefire Vulnerability Research Team
Brian Caswell <brian.caswell@sourcefire.com>
Nigel Houghton <nigel.houghton@sourcefire.com>

--
Additional References:

--
