Bug 711170 - pam_ssh: privileges not dropped properly before executing ssh-agent
Summary: pam_ssh: privileges not dropped properly before executing ssh-agent
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 711171 711172
Blocks: 734540
TreeView+ depends on / blocked
 
Reported: 2011-06-06 17:43 UTC by Jan Lieskovsky
Modified: 2019-09-29 12:45 UTC (History)
3 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2011-09-27 19:13:44 UTC


Attachments (Terms of Use)

Description Jan Lieskovsky 2011-06-06 17:43:43 UTC
It was found that pam_ssh, PAM module for use with SSH keys and ssh-agent,
did not properly drop root SGID privileges prior executing the ssh-agent
authentication agent. A local attacker could use this flaw to potentially
escalate their privileges.

References:
[1] https://bugzilla.novell.com/show_bug.cgi?id=665061

Proposed patch:
[2] https://bugzilla.novell.com/show_bug.cgi?id=665061#c3

CVE request:
[3] http://www.openwall.com/lists/oss-security/2011/06/06/3

Comment 1 Jan Lieskovsky 2011-06-06 17:46:04 UTC
This issue affects the versions of the pam_ssh package, as present within
EPEL-4 and EPEL-5 repositories.

--

This issue affects the versions of the pam_ssh package, as shipped with
Fedora release of 13, 14, and 15. Please schedule an update.

Comment 2 Jan Lieskovsky 2011-06-06 17:46:58 UTC
Created pam_ssh tracking bugs for this issue

Affects: epel-all [bug 711171]
Affects: fedora-all [bug 711172]


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