Ubuntu 8.10 / 9.04 : pam vulnerability (USN-828-1)

Ubuntu Security Notice (C) 2009-2016 Canonical, Inc. / NASL script (C) 2009-2016 Tenable Network Security, Inc.


Synopsis :

The remote Ubuntu host is missing one or more security-related
patches.

Description :

Russell Senior discovered that the system authentication module
selection mechanism for PAM did not safely handle an empty selection.
If an administrator had specifically removed the default list of
modules or failed to chose a module when operating debconf in a very
unlikely non-default configuration, PAM would allow any authentication
attempt, which could lead to remote attackers gaining access to a
system with arbitrary privileges. This did not affect default Ubuntu
installations.

Note that Tenable Network Security has extracted the preceding
description block directly from the Ubuntu security advisory. Tenable
has attempted to automatically clean and format it as much as possible
without introducing additional issues.

Solution :

Update the affected packages.

Risk factor :

High / CVSS Base Score : 9.3
(CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C)

Family: Ubuntu Local Security Checks

Nessus Plugin ID: 40906 ()

Bugtraq ID:

CVE ID: CVE-2009-3232