Bug 1128764 (CVE-2014-5030)

Summary:	CVE-2014-5030 cups: allows local users to read arbitrary files via a symlink attack
Product:	[Other] Security Response	Reporter:	Francisco Alonso <falonso>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	bressers, carnil, jpopelka, jrusnack, twaugh
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:	It was discovered that CUPS allowed certain users to create symbolic links in certain directories under /var/cache/cups/. A local user with the 'lp' group privileges could use this flaw to read the contents of arbitrary files on the system or, potentially, escalate their privileges on the system.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2015-03-26 21:43:22 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:	1122601, 1128773, 1128774, 1128775
Bug Blocks:	1101912, 1115577

Description Francisco Alonso 2014-08-11 13:59:57 UTC

It was reported [1] that CUPS allow local users to read arbitrary files via symlink attack on the directory index files:

index.html
index.class
index.pl
index.php
index.pyc
index.py

Upstream patches are available at [2] as well.

[1]: http://seclists.org/oss-sec/2014/q3/209
[2]: https://cups.org/str.php?L4455

Comment 5 Francisco Alonso 2014-08-11 14:19:18 UTC

Created cups tracking bugs for this issue:

Affects: fedora-all [bug 1128775]

Comment 7 Francisco Alonso 2014-08-11 14:43:50 UTC

Statement:

This issue is not planned to be fixed in Red Hat Enterprise Linux 5 as it is now in Production 3 Phase of the support and maintenance life cycle, https://access.redhat.com/support/policy/updates/errata/

Comment 8 Martin Prpič 2014-10-07 08:44:49 UTC

IssueDescription:

It was discovered that CUPS allowed certain users to create symbolic links in certain directories under /var/cache/cups/. A local user with the 'lp' group privileges could use this flaw to read the contents of arbitrary files on the system or, potentially, escalate their privileges on the system.

Comment 9 errata-xmlrpc 2014-10-14 07:31:56 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6

Via RHSA-2014:1388 https://rhn.redhat.com/errata/RHSA-2014-1388.html

Comment 10 Tomas Hoger 2015-03-26 21:43:22 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHBA-2015:0386 https://rhn.redhat.com/errata/RHBA-2015-0386.html