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[ GLSA 200501-21 ] HylaFAX: hfaxd unauthorized login vulnerability
From: Thierry Carrez <koon () gentoo org>
Date: Tue, 11 Jan 2005 17:34:44 +0100
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200501-21 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: Normal Title: HylaFAX: hfaxd unauthorized login vulnerability Date: January 11, 2005 Bugs: #75941 ID: 200501-21 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======== HylaFAX is subject to a vulnerability in its username matching code, potentially allowing remote users to bypass access control lists. Background ========== HylaFAX is a software package for sending and receiving facsimile messages. Affected packages ================= ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 net-misc/hylafax < 4.2.0-r2 >= 4.2.0-r2 Description =========== The code used by hfaxd to match a given username and hostname with an entry in the hosts.hfaxd file is insufficiently protected against malicious entries. Impact ====== If the HylaFAX installation uses a weak hosts.hfaxd file, a remote attacker could authenticate using a malicious username or hostname and bypass the intended access restrictions. Workaround ========== As a workaround, administrators may consider adding passwords to all entries in the hosts.hfaxd file. Resolution ========== All HylaFAX users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=net-misc/hylafax-4.2.0-r2" Note: Due to heightened security, weak entries in the hosts.hfaxd file may no longer work. Please see the HylaFAX documentation for details of accepted syntax in the hosts.hfaxd file. References ========== [ 1 ] CAN-2004-1182 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-1182 [ 2 ] HylaFAX Announcement http://marc.theaimsgroup.com/?l=hylafax&m=110545119911558&w=2 Availability ============ This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200501-21.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 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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- [ GLSA 200501-21 ] HylaFAX: hfaxd unauthorized login vulnerability Thierry Carrez (Jan 11)