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[ GLSA 200604-03 ] FreeRADIUS: Authentication bypass in EAP-MSCHAPv2 module
From: Matthias Geerdsen <vorlon () gentoo org>
Date: Tue, 04 Apr 2006 20:57:33 +0200
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200604-03 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: Normal Title: FreeRADIUS: Authentication bypass in EAP-MSCHAPv2 module Date: April 04, 2006 Bugs: #127229 ID: 200604-03 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======== The EAP-MSCHAPv2 module of FreeRADIUS is affected by a validation issue which causes some authentication checks to be bypassed. Background ========== FreeRADIUS is an open source RADIUS authentication server implementation. Affected packages ================= ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 net-dialup/freeradius < 1.1.1 >= 1.1.1 < 1.0.0 Description =========== 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. Resolution ========== All FreeRADIUS users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=net-dialup/freeradius-1.1.1" References ========== [ 1 ] CVE-2006-1354 http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-1354 [ 2 ] FreeRADIUS Vulnerability Notifications http://www.freeradius.org/security.html Availability ============ This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200604-03.xml Concerns? ========= Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users machines is of utmost importance to us. Any security concerns should be addressed to security () gentoo org or alternatively, you may file a bug at http://bugs.gentoo.org. License ======= Copyright 2006 Gentoo Foundation, Inc; referenced text belongs to its owner(s). The contents of this document are licensed under the Creative Commons - Attribution / Share Alike license. http://creativecommons.org/licenses/by-sa/2.0
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- [ GLSA 200604-03 ] FreeRADIUS: Authentication bypass in EAP-MSCHAPv2 module Matthias Geerdsen (Apr 04)