- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200511-15 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: High Title: Smb4k: Local unauthorized file access Date: November 18, 2005 Bugs: #111089 ID: 200511-15 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======== A vulnerability has been identified that allows unauthorized access to the contents of /etc/sudoers and /etc/super.tab files. Background ========== Smb4K is a SMB/CIFS share browser for KDE. Affected packages ================= ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 net-misc/smb4k < 0.6.4 >= 0.6.4 Description =========== A vulnerability leading to unauthorized file access has been found. A pre-existing symlink from /tmp/sudoers and /tmp/super.tab to a textfile will cause Smb4k to write the contents of these files to the target of the symlink, as Smb4k does not check for the existence of these files before writing to them. Impact ====== An attacker could acquire local privilege escalation by adding username(s) to the list of sudoers. Workaround ========== There is no known workaround at this time. Resolution ========== All smb4k users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=net-misc/smb4k-0.6.4" References ========== [ 1 ] CVE-2005-2851 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-2851 [ 2 ] Smb4k Announcement http://smb4k.berlios.de/ Availability ============ This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200511-15.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@xxxxxxxxxx or alternatively, you may file a bug at http://bugs.gentoo.org. License ======= Copyright 2005 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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