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Gentoo Linux Security Advisory GLSA 200604-03 |
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http://security.gentoo.org/ |
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Severity: Normal |
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Title: FreeRADIUS: Authentication bypass in EAP-MSCHAPv2 module |
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Date: April 04, 2006 |
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Bugs: #127229 |
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ID: 200604-03 |
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Synopsis |
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======== |
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|
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The EAP-MSCHAPv2 module of FreeRADIUS is affected by a validation issue |
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which causes some authentication checks to be bypassed. |
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Background |
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========== |
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|
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FreeRADIUS is an open source RADIUS authentication server |
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implementation. |
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|
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Affected packages |
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================= |
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|
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------------------------------------------------------------------- |
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Package / Vulnerable / Unaffected |
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------------------------------------------------------------------- |
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1 net-dialup/freeradius < 1.1.1 >= 1.1.1 |
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< 1.0.0 |
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|
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Description |
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=========== |
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|
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FreeRADIUS suffers from insufficient input validation in the |
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EAP-MSCHAPv2 state machine. |
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Impact |
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====== |
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|
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An attacker could cause the server to bypass authentication checks by |
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manipulating the EAP-MSCHAPv2 client state machine. |
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Workaround |
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========== |
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There is no known workaround at this time. |
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Resolution |
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========== |
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All FreeRADIUS users should upgrade to the latest version: |
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# emerge --sync |
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# emerge --ask --oneshot --verbose ">=net-dialup/freeradius-1.1.1" |
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|
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References |
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========== |
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[ 1 ] CVE-2006-1354 |
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http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-1354 |
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[ 2 ] FreeRADIUS Vulnerability Notifications |
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http://www.freeradius.org/security.html |
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|
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Availability |
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============ |
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This GLSA and any updates to it are available for viewing at |
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the Gentoo Security Website: |
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http://security.gentoo.org/glsa/glsa-200604-03.xml |
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Concerns? |
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========= |
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Security is a primary focus of Gentoo Linux and ensuring the |
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confidentiality and security of our users machines is of utmost |
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importance to us. Any security concerns should be addressed to |
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security@g.o or alternatively, you may file a bug at |
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http://bugs.gentoo.org. |
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License |
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======= |
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Copyright 2006 Gentoo Foundation, Inc; referenced text |
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belongs to its owner(s). |
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The contents of this document are licensed under the |
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Creative Commons - Attribution / Share Alike license. |
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http://creativecommons.org/licenses/by-sa/2.0 |
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