OpenSSH With OpenPAM DoS

This script is Copyright (C) 2011 Tenable Network Security, Inc.


Synopsis :

The SSH server running on the remote host has a denial of service
vulnerability.

Description :

According to its banner, the version of OpenSSH running on the remote
host is affected by a remote denial of service vulnerability. When
used with OpenPAM, OpenSSH does not properly handle when a forked
child process ends during PAM authentication. This could allow a
remote attacker to cause a denial of service by connecting several
times to the SSH server, waiting for the password prompt and then
disconnecting.

See also :

https://bugzilla.mindrot.org/show_bug.cgi?id=839
http://www.nessus.org/u?170f19e3

Solution :

Upgrade to OpenSSH 3.8.1p1 or later.

Risk factor :

Medium / CVSS Base Score : 5.0
(CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P)
CVSS Temporal Score : 4.1
(CVSS2#E:F/RL:OF/RC:C)
Public Exploit Available : true

Family: Denial of Service

Nessus Plugin ID: 44073 ()

Bugtraq ID: 16892

CVE ID: CVE-2006-0883