CVE-2011-0752
MEDIUM severity · CVSS 5 · Improper input validation
5CVSS MEDIUM
Summary
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 & exploitability
Attack vectorNetwork
Attack complexityLow
Privileges required—
User interaction—
Confidentiality impactNone
Integrity impact—
Availability impactNone
Exploit probability (EPSS)1%
AV:N/AC:L/Au:N/C:N/I:P/A:N
Affected products we track (1)
Recommendation
Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.
Additional information
- NVD record
- http://marc.info/?l=bugtraq&m=133469208622507&w=2
- http://www.openwall.com/lists/oss-security/2010/12/13/4
- http://www.php.net/ChangeLog-5.php
- http://www.php.net/archive/2010.php#id2010-12-10-1
- 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