National Cyber Awareness System
Vulnerability Summary for CVE-2011-0752
Original release date:02/02/2011
Last revised:07/19/2011
Source:
US-CERT/NIST
Overview
The extract function in PHP before 5.2.15 does not prevent use of the EXTR_OVERWRITE parameter to overwrite (1) the GLOBALS superglobal array and (2) the this variable, which allows context-dependent attackers to bypass intended access restrictions by modifying data structures that were not intended to depend on external input, a related issue to CVE-2005-2691 and CVE-2006-3758.
Impact
CVSS Severity (version 2.0):
Impact Subscore:
2.9
Exploitability Subscore:
10.0
CVSS Version 2 Metrics:
Access Vector: Network exploitable
Access Complexity: Low
Authentication: Not required to exploit
Impact Type:Allows unauthorized modification
References to Advisories, Solutions, and Tools
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External Source: XF
Name: php-extract-security-bypass(65432)
External Source: CONFIRM
Name: http://www.php.net/releases/5_2_15.php
External Source: CONFIRM
Name: http://www.php.net/ChangeLog-5.php
External Source: CONFIRM
Name: http://www.php.net/archive/2010.php#id2010-12-10-1
External Source: MLIST
Name: [oss-security] 20101213 Re: Issues without CVE names in PHP 5.3.4/5.2.15 release
External Source: OVAL
Name: oval:org.mitre.oval:def:12016
References to Check Content
Identifier:oval:org.mitre.oval:def:12016
Check System:http://oval.mitre.org/XMLSchema/oval-definitions-5
