pam_ssh Login Prompt Remote Username Enumeration

This script is Copyright (C) 2009-2011 Tenable Network Security, Inc.


Synopsis :

The remote host is running a SSH server with an information
disclosure vulnerability.

Description :

The remote host is running a SSH server that responds differently to
login attempts depending on whether or not a valid username is
given. This is likely due to a vulnerable version of pam_ssh.
Other products may be affected as well.

A remote attacker could use this to enumerate valid usernames,
which could be used to mount further attacks.

See also :

http://bugs.gentoo.org/show_bug.cgi?id=263579

Solution :

Contact the vendor for a fix.

Risk factor :

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

Family: Misc.

Nessus Plugin ID: 38197 ()

Bugtraq ID: 34333

CVE ID: CVE-2009-1273