Security Bulletin
This security bulletin contains one medium risk vulnerability.
EUVDB-ID: #VU45390
Risk: Medium
CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]
CVE-ID: CVE-2011-0752
CWE-ID:
CWE-20 - Improper input validation
Exploit availability: No
DescriptionThe 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.
MitigationInstall update from vendor's website.
Vulnerable software versionsPHP: 1.0 - 5.2.13
CPE2.3https://marc.info/?l=bugtraq&m=133469208622507&w=2
https://www.openwall.com/lists/oss-security/2010/12/13/4
https://www.php.net/archive/2010.php#id2010-12-10-1
https://www.php.net/ChangeLog-5.php
https://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
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.