SB2011020304 - Input validation error in PHP
Published: February 3, 2011 Updated: August 11, 2020
Security Bulletin ID
SB2011020304
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Input validation error (CVE-ID: CVE-2011-0752)
The vulnerability allows a remote non-authenticated attacker to manipulate data.
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.
Remediation
Install update from vendor's website.
References
- http://marc.info/?l=bugtraq&m=133469208622507&w=2
- http://www.openwall.com/lists/oss-security/2010/12/13/4
- http://www.php.net/archive/2010.php#id2010-12-10-1
- http://www.php.net/ChangeLog-5.php
- http://www.php.net/releases/5_2_15.php
- https://exchange.xforce.ibmcloud.com/vulnerabilities/65432
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12016