GLSA-200604-03 : FreeRADIUS: Authentication bypass in EAP-MSCHAPv2 module

This script is Copyright (C) 2006-2014 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-200604-03
(FreeRADIUS: Authentication bypass in EAP-MSCHAPv2 module)

FreeRADIUS suffers from insufficient input validation in the
EAP-MSCHAPv2 state machine.

Impact :

An attacker could cause the server to bypass authentication checks
by manipulating the EAP-MSCHAPv2 client state machine.

Workaround :

There is no known workaround at this time.

See also :

http://www.freeradius.org/security.html
http://www.gentoo.org/security/en/glsa/glsa-200604-03.xml

Solution :

All FreeRADIUS users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose '>=net-dialup/freeradius-1.1.1'

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: 21196 (gentoo_GLSA-200604-03.nasl)

Bugtraq ID:

CVE ID: CVE-2006-1354