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Date: Tue, 02 Dec 2014 15:56:14 +0100
From: Florian Weimer <fweimer@...hat.com>
To: oss-security@...ts.openwall.com, cve-assign@...re.org
Subject: CVE request: OpenSSH ~/.k5users patch (Fedora and downstreams)
In a Kerberos environment, the Fedora and Red Hat Enterprise Linux 7
version of the OpenSSH server allows remote, authenticated users to log
in as another user if they are listed in a ~/.k5users file of that other
user. This unexpectedly alters the system security policy, as expressed
through the ~/.k5users file, because previously, users would have to log
in locally, potentially requiring different forms of authentication,
before they could use the ksu command to switch users.
Red Hat Bugzilla:
<https://bugzilla.redhat.com/show_bug.cgi?id=1169843>
Patch in upstream bug tracker:
<https://bugzilla.mindrot.org/show_bug.cgi?id=1867>
--
Florian Weimer / Red Hat Product Security
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