Bug 834546 (CVE-2012-2751)

Summary:	CVE-2012-2751 mod_security: Multipart bypass issue related to quote parsing
Product:	[Other] Security Response	Reporter:	Jan Lieskovsky <jlieskov>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	extras-orphan, pvrabec, vkaigoro
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:	2012-09-10 07:33:46 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:	834549, 834550
Bug Blocks:

Description Jan Lieskovsky 2012-06-22 11:16:52 UTC

A security flaw was found in the way mod_security, a security module for Apache HTTP server, handled situations in which both of 'Content:Disposition: attachment' and 'Content-Type: multipart' were present in HTTP headers. A remote attacker could use this flaw to conduct cross-site scripting (XSS) attacks via a specially-crafted HTML document.

References:
[1] http://mod-security.svn.sourceforge.net/viewvc/mod-security/m2/branches/2.6.x/CHANGES
[2] http://www.openwall.com/lists/oss-security/2012/06/22/2
[3] https://bugzilla.novell.com/show_bug.cgi?id=768293
[4] https://secunia.com/advisories/49576/

Relevant upstream patch:
[5] http://mod-security.svn.sourceforge.net/viewvc/mod-security?view=revision&revision=1918

Comment 1 Jan Lieskovsky 2012-06-22 11:18:49 UTC

This issue affects the versions of the mod_security package, as shipped with Fedora release of 15, 16, and 17. Please schedule an update.

--

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

Comment 2 Jan Lieskovsky 2012-06-22 11:19:46 UTC

Created mod_security tracking bugs for this issue

Affects: fedora-all [bug 834549]
Affects: epel-all [bug 834550]

Comment 3 Vasyl Kaigorodov 2014-08-04 11:32:50 UTC

As per http://www.openwall.com/lists/oss-security/2012/06/22/2, this issue was [partially] fixed in 2009, and separate CVE was assigned to it.
For search purposes:

  CVE-2009-5031 
  https://www.modsecurity.org/fisheye/browse/modsecurity/m2/branches/2.5.x/apache2/msc_multipart.c?r2=1419&r1=1366