Bug 918196 (CVE-2013-1635)

Summary:	CVE-2013-1635 php, php53: Arbitrary locations file write due absent validation of soap.wsdl_cache_dir configuration directive value
Product:	[Other] Security Response	Reporter:	Jan Lieskovsky <jlieskov>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED DUPLICATE	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	fedora, jorton, rcollet, rpm, webstack-team
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:	2013-03-07 17:25:38 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:
Bug Blocks:	918202

Description Jan Lieskovsky 2013-03-05 17:07:25 UTC

A security flaw was found in the way PHP performed soap.wsdl_cache_dir configuration directive validation before projecting SOAP WSDL cache content to the local filesystem. A remote attacker could use this flaw to place SOAP WSDL files at arbitrary file system locations (locations accessible with the privileges of the PHP application).

References:
[1] http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=702221
[2] https://bugs.gentoo.org/show_bug.cgi?id=459904
[3] http://www.mandriva.com/en/support/security/advisories/advisory/MDVSA-2013:016/

Relevant upstream patch:
[4] http://git.php.net/?p=php-src.git;a=commitdiff;h=702b436ef470cc02f8e2cc21f2fadeee42103c74

Comment 2 Jan Lieskovsky 2013-03-06 11:14:20 UTC

PHP NEWS file entries:

[5] http://git.php.net/?p=php-src.git;a=blob;f=NEWS;h=36f6f9a4396d3034cc903a4271e7fdeccc5d3ea6;hb=refs/heads/PHP-5.4
[6] http://git.php.net/?p=php-src.git;a=blob;f=NEWS;h=82afa3a040e639f3595121e45b850d5453906a00;hb=refs/heads/PHP-5.3

Comment 3 Vincent Danen 2013-03-07 17:25:38 UTC

Note that this is actually an open_basedir bypass issue.

The problem is that soap.wsdl_cache_dir does not consult the open_basedir directive to determine where it is allowed to write files.

*** This bug has been marked as a duplicate of bug 169857 ***

Comment 4 Vincent Danen 2013-03-07 17:56:35 UTC

Statement:

We do not consider safe_mode / open_basedir restriction bypass issues to be security sensitive.  For more details see http://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=169857#c1 and http://www.php.net/security-note.php