GLSA-200508-22 : pam_ldap: Authentication bypass vulnerability

This script is Copyright (C) 2005-2014 Tenable Network Security, Inc.


Synopsis :

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

Description :

The remote host is affected by the vulnerability described in GLSA-200508-22
(pam_ldap: Authentication bypass vulnerability)

When a pam_ldap client attempts to authenticate against an LDAP
server that omits the optional error value from the
PasswordPolicyResponseValue, the authentication attempt will always
succeed.

Impact :

A remote attacker may exploit this vulnerability to bypass the
LDAP authentication mechanism, gaining access to the system possibly
with elevated privileges.

Workaround :

There is no known workaround at this time.

See also :

http://www.gentoo.org/security/en/glsa/glsa-200508-22.xml

Solution :

All pam_ldap users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose '>=sys-auth/pam_ldap-180'

Risk factor :

High / CVSS Base Score : 7.5
(CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P)

Family: Gentoo Local Security Checks

Nessus Plugin ID: 19575 (gentoo_GLSA-200508-22.nasl)

Bugtraq ID:

CVE ID: CVE-2005-2641