#VU110336 Input validation error in PHP - CVE-2008-4107

Vulnerability identifier: #VU110336

Vulnerability risk: Medium

CVSSv4.0: 1.7 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2008-4107

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 read and manipulate data.

The (1) rand and (2) mt_rand functions in PHP 5.2.6 do not produce cryptographically strong random numbers, which allows attackers to leverage exposures in products that rely on these functions for security-relevant functionality, as demonstrated by the password-reset functionality in Joomla! 1.5.x and WordPress before 2.6.2, a different vulnerability than CVE-2008-2107, CVE-2008-2108, and CVE-2008-4102. Download the latest version of PHP to fix this vulnerability: http://www.php.net/downloads.php

Mitigation
Install update from vendor's website.

Vulnerable software versions

PHP: 4.0.0, 4.0.1, 4.0.2, 4.0.3, 4.0.4, 4.0.5, 4.0.6, 4.0.7, 4.1, 4.1.1, 4.1.2, 4.2, 4.2.1, 4.2.2, 4.2.3, 4.3, 4.3.1, 4.3.2, 4.3.3, 4.3.4, 4.3.5, 4.3.6, 4.3.7, 4.3.8, 4.3.9, 4.3.10, 4.3.11, 4.4, 4.4.1, 4.4.2, 4.4.3, 4.4.4, 4.4.5, 4.4.6, 4.4.7, 5.0.0, 5.0.1, 5.0.4, 5.0.5, 5.1.0, 5.1.2, 5.1.4, 5.1.5, 5.1.6, 5.2, 5.2.1, 5.2.2, 5.2.3, 5.2.4

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External links
https://marc.info/?l=oss-security&m=122152830017099&w=2
https://osvdb.org/48700
https://secunia.com/advisories/31737
https://secunia.com/advisories/31870
https://securityreason.com/securityalert/4271
https://securitytracker.com/id?1020869
https://wordpress.org/development/2008/09/wordpress-262/
https://www.openwall.com/lists/oss-security/2008/09/11/6
https://www.securityfocus.com/archive/1/496237/100/0/threaded
https://www.securityfocus.com/archive/1/496287/100/0/threaded
https://www.securityfocus.com/bid/31115
https://www.sektioneins.de/advisories/SE-2008-02.txt
https://www.sektioneins.de/advisories/SE-2008-04.txt
https://www.sektioneins.de/advisories/SE-2008-05.txt
https://www.suspekt.org/2008/08/17/mt_srand-and-not-so-random-numbers/
https://www.vupen.com/english/advisories/2008/2553
https://exchange.xforce.ibmcloud.com/vulnerabilities/45956
https://www.redhat.com/archives/fedora-package-announce/2008-September/msg00607.html
https://www.redhat.com/archives/fedora-package-announce/2008-September/msg00629.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.