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

high Nessus Plugin ID 21196

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.

Solution

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

See Also

http://freeradius.org/security/

https://security.gentoo.org/glsa/200604-03

Plugin Details

Severity: High

ID: 21196

File Name: gentoo_GLSA-200604-03.nasl

Version: 1.16

Type: local

Published: 4/8/2006

Updated: 1/6/2021

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.3

CVSS v2

Risk Factor: High

Base Score: 7.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

Vulnerability Information

CPE: p-cpe:/a:gentoo:linux:freeradius, cpe:/o:gentoo:linux

Required KB Items: Host/local_checks_enabled, Host/Gentoo/release, Host/Gentoo/qpkg-list

Patch Publication Date: 4/4/2006

Reference Information

CVE: CVE-2006-1354

GLSA: 200604-03