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[Full-disclosure] rPSA-2009-0007-1 pam_krb5

From: rPath Update Announcements <announce-noreply_at_nospam>
Date: Tue Jan 13 2009 - 18:46:43 GMT
To: security-announce@lists.rpath.com, update-announce@lists.rpath.com


rPath Security Advisory: 2009-0007-1
Published: 2009-01-13
Products:

    rPath Linux 2

Rating: Severe
Exposure Level Classification:

    Local Root Deterministic Privilege Escalation Updated Versions:

    pam_krb5=conary.rpath.com@rpl:2/2.2.11-4.1-1

rPath Issue Tracking System:

    https://issues.rpath.com/browse/RPL-2929

References:

    http://cve.mitre.org/cgi-bin/cvename.cgi?name=cvename.cgi?name=CVE-2008-3825

Description:

    When the existing_ticket option is enabled, previous versions of the     pam_krb5 package use incorrect privileges when reading a Kerberos     credential cache, which allows other local users to gain privileges     by setting the KRB5CCNAME environment variable to an arbitrary cache     filename and running the su or sudo program. It may be possible to     mount a similar attack using sshd if sshd is configured insecurely,     but such a configuration will be otherwise vulnerable and so this     is not considered relevant.     

    rPath Linux does not ship with the existing_ticket option enabled     by default, and therefore is by default not vulnerable to this attack.

http://wiki.rpath.com/Advisories:rPSA-2009-0007

Copyright 2009 rPath, Inc.
This file is distributed under the terms of the MIT License. A copy is available at http://www.rpath.com/permanent/mit-license.html



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