#VU44087 Input validation error in PHP - CVE-2012-2336
Vulnerability identifier: #VU44087
Vulnerability risk: Medium
CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green]
CVE-ID:
CWE-ID:
CWE-20
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
PHP
Universal components / Libraries /
Scripting languages
Vendor: PHP Group
Description
The vulnerability allows a remote non-authenticated attacker to perform service disruption.
sapi/cgi/cgi_main.c in PHP before 5.3.13 and 5.4.x before 5.4.3, when configured as a CGI script (aka php-cgi), does not properly handle query strings that lack an = (equals sign) character, which allows remote attackers to cause a denial of service (resource consumption) by placing command-line options in the query string, related to lack of skipping a certain php_getopt for the 'T' case. NOTE: this vulnerability exists because of an incomplete fix for CVE-2012-1823.
Mitigation
Install update from vendor's website.
Vulnerable software versions
PHP: 1.0, 2.0b10, 2.0, 3.0 - 3.0.18, 4.0 - 4.0.7, 4.1.0 - 4.1.2, 4.2.0 - 4.2.3, 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.11, 5.4.0 - 5.4.2
External links
https://lists.opensuse.org/opensuse-security-announce/2012-06/msg00004.html
https://lists.opensuse.org/opensuse-security-announce/2012-07/msg00003.html
https://secunia.com/advisories/49014
https://www.php.net/archive/2012.php#id2012-05-08-1
https://www.php.net/ChangeLog-5.php#5.4.3
https://bugs.php.net/bug.php?id=61910
https://bugs.php.net/patch-display.php?bug_id=61910&patch=CVE-2012-1823.patch&revision=1336251592&display=1
https://h20564.www2.hp.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c03839862
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.
