Vulnerability identifier: #VU44086

Vulnerability risk: Medium

CVSSv3.1: 6.4 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2012-2335

CWE-ID: CWE-264

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 read and manipulate data.

php-wrapper.fcgi does not properly handle command-line arguments, which allows remote attackers to bypass a protection mechanism in PHP 5.3.12 and 5.4.2 and execute arbitrary code by leveraging improper interaction between the PHP sapi/cgi/cgi_main.c component and a query string beginning with a +- sequence.

Mitigation
Install update from vendor's website.

Vulnerable software versions

PHP: 5.3.12, 5.4.2

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External links
http://eindbazen.net/2012/05/php-cgi-advisory-cve-2012-1823/
http://git.php.net/?p=php-src.git;a=blob;f=sapi/cgi/cgi_main.c;h=a7ac26f0#l1569
http://lists.opensuse.org/opensuse-security-announce/2012-06/msg00004.html
http://lists.opensuse.org/opensuse-security-announce/2012-07/msg00003.html
http://secunia.com/advisories/49014
http://www.kb.cert.org/vuls/id/520827
http://www.php.net/archive/2012.php#id2012-05-06-1
http://bugs.php.net/bug.php?id=61910
http://exchange.xforce.ibmcloud.com/vulnerabilities/75652
http://h20564.www2.hp.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c03839862

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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.