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Gentoo alert 200704-03 (openafs)
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 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 (Log in to post comments)
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