- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200502-30 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: Low Title: cmd5checkpw: Local password leak vulnerability Date: February 25, 2005 Bugs: #78256 ID: 200502-30 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======== cmd5checkpw contains a flaw allowing local users to access other users cmd5checkpw passwords. Background ========== cmd5checkpw is a checkpassword compatible authentication program that uses CRAM-MD5 authentication mode. Affected packages ================= ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 net-mail/cmd5checkpw <= 0.22-r1 >= 0.22-r2 Description =========== Florian Westphal discovered that cmd5checkpw is installed setuid cmd5checkpw but does not drop privileges before calling execvp(), so the invoked program retains the cmd5checkpw euid. Impact ====== Local users that know at least one valid /etc/poppasswd user/password combination can read the /etc/poppasswd file. Workaround ========== There is no known workaround at this time. Resolution ========== All cmd5checkpw users should upgrade to the latest available version: # emerge --sync # emerge --ask --oneshot --verbose ">=net-mail/cmd5checkpw-0.22-r2" Availability ============ This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200502-30.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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