#VU110452 Buffer overflow in PHP - CVE-2007-1381

Vulnerability identifier: #VU110452

Vulnerability risk: High

CVSSv4.0: 8.2 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Amber]

CVE-ID: CVE-2007-1381

CWE-ID: CWE-119

Exploitation vector: Network

Exploit availability: Yes

Vulnerable software:
PHP
Universal components / Libraries / Scripting languages

Vendor: PHP Group

Description

The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.

The wddx_deserialize function in wddx.c 1.119.2.10.2.12 and 1.119.2.10.2.13 in PHP 5, as modified in CVS on 20070224 and fixed on 20070304, calls strlcpy where strlcat was intended and uses improper arguments, which allows context-dependent attackers to execute arbitrary code via a WDDX packet with a malformed overlap of a STRING element, which triggers a buffer overflow. This vulnerability impacts PHP CVS as of 2007-02-24

Mitigation
Install update from vendor's website.

Vulnerable software versions

PHP: 5

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External links
https://cvs.php.net/viewvc.cgi/php-src/ext/wddx/wddx.c?r1=1.119.2.10.2.13&r2=1.119.2.10.2.14
https://cvs.php.net/viewvc.cgi/php-src/ext/wddx/wddx.c?revision=1.119.2.10.2.14&view=markup
https://www.osvdb.org/32775
https://www.php-security.org/MOPB/MOPB-09-2007.html

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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. However, proof of concept for this vulnerability is available.