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[ GLSA 200410-28 ] rssh: Format string vulnerability
From: Thierry Carrez <koon () gentoo org>
Date: Wed, 27 Oct 2004 17:02:09 +0200
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200410-28 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: High Title: rssh: Format string vulnerability Date: October 27, 2004 Bugs: #66988 ID: 200410-28 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======== rssh is vulnerable to a format string vulnerability that allows arbitrary execution of code with the rights of the connected user, thereby bypassing rssh restrictions. Background ========== rssh is a restricted shell, allowing only a few commands like scp or sftp. It is often used as a complement to OpenSSH to provide limited access to users. Affected packages ================= ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 app-shells/rssh < 2.2.2 >= 2.2.2 Description =========== Florian Schilhabel from the Gentoo Linux Security Audit Team found a format string vulnerability in rssh syslogging of failed commands. Impact ====== Using a malicious command, it may be possible for a remote authenticated user to execute arbitrary code on the target machine with user rights, effectively bypassing any restriction of rssh. Workaround ========== There is no known workaround at this time. Resolution ========== All rssh users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=app-shells/rssh-2.2.2" References ========== [ 1 ] rssh security announcement http://www.pizzashack.org/rssh/security.shtml Availability ============ This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200410-28.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 2004 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/1.0
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- [ GLSA 200410-28 ] rssh: Format string vulnerability Thierry Carrez (Oct 28)