Bug 811920 (CVE-2011-4953)

Summary:	CVE-2011-4953 cobbler: Privilege escalation by processing of crafted management parameters
Product:	[Other] Security Response	Reporter:	Jan Lieskovsky <jlieskov>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED CURRENTRELEASE	QA Contact:
Severity:	high	Docs Contact:
Priority:	high
Version:	unspecified	CC:	awood, dgoodwin, jpazdziora, rcvalle, shenson, vanmeeuwen+fedora
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2012-06-20 16:33:06 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	811942, 811943
Bug Blocks:	811959

Description Jan Lieskovsky 2012-04-12 10:31:25 UTC

A privilege escalation flaw was found in the way Cobbler, a network install server, processed certain YAML strings passed through the Puppet management parameters interface. A remote attacker could provide a specially-crafted management parameter YAML string, which once loaded by Cobbler could lead to arbitrary code execution with the privileges of the privileged system user (root).

References:
[1] https://bugs.launchpad.net/ubuntu/oneiric/+source/cobbler/+bug/858883

CVE Request:
[2] http://www.openwall.com/lists/oss-security/2012/04/12/6

Ubuntu patch from Robie Basak:
* Backport safe YAML load from upstream. (LP: #858883)
[3] http://bazaar.launchpad.net/~racb/ubuntu/oneiric/cobbler/858878_858883/revision/54

Comment 1 Jan Lieskovsky 2012-04-12 10:38:57 UTC

This issue affects the versions of the cobbler package, as shipped with Fedora EPEL 5 and Fedora EPEL 6. Please schedule an update.

As of right now, this issue did NOT affect the current versions of the cobbler package, as shipped with Fedora release of 15 and 16 (the cobbler-2.0.11-3.* versions). But since there are cobbler-2.2.2-1.fc* versions scheduled to get next stable versions and these are affected too, please schedule Fedora release 15 and 16 cobbler package versions updates too.

Comment 3 Jan Lieskovsky 2012-04-12 11:27:42 UTC

Created cobbler tracking bugs for this issue

Affects: fedora-all [bug 811942]
Affects: epel-all [bug 811943]

Comment 4 Kurt Seifried 2012-04-12 16:14:33 UTC

Added CVE as per http://www.openwall.com/lists/oss-security/2012/04/12/10

Comment 5 Jan Lieskovsky 2012-06-20 16:33:06 UTC

Statement:

This issue did not affect the version of cobbler as shipped with Red Hat Network Satellite Server 5.4 as it did not include the upstream commit d7b30b5fca5097c544ca37ade8c945a3106b1896 that introduced this flaw.