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[ GLSA 200704-03 ] OpenAFS: Privilege escalation
From: Raphael Marichez <falco () gentoo org>
Date: Wed, 4 Apr 2007 00:41:11 +0200
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200704-03 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: High Title: OpenAFS: Privilege escalation Date: April 03, 2007 Bugs: #171662 ID: 200704-03 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======== OpenAFS is subject to a design flaw that could allow privilege escalation on the client. Background ========== OpenAFS is a distributed network filesystem. Affected packages ================= ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 net-fs/openafs < 1.4.4 >= 1.4.4 Description =========== Benjamin Bennett discovered that the OpenAFS client contains a design flaw where cache managers do not use authenticated server connections when performing actions not requested by a user. Impact ====== If setuid is enabled on the client cells, an attacker can supply a fake FetchStatus reply that sets setuid and root ownership of a file being executed. This could provide root access on the client. Remote attacks may be possible if an attacker can entice a user to execute a known file. Note that setuid is enabled by default in versions of OpenAFS prior to 1.4.4. Workaround ========== Disable the setuid functionality on all client cells. This is now the default configuration in OpenAFS. Resolution ========== All OpenAFS users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=net-fs/openafs-1.4.4" References ========== [ 1 ] CVE-2007-1507 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-1507 Availability ============ This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200704-03.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 2007 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/2.5
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- [ GLSA 200704-03 ] OpenAFS: Privilege escalation Raphael Marichez (Apr 03)