National Cyber-Alert System
Vulnerability Summary for CVE-2008-2107
Original release date:05/07/2008
Last revised:05/08/2009
Source:
US-CERT/NIST
Overview
The GENERATE_SEED macro in PHP 4.x before 4.4.8 and 5.x before 5.2.5, when running on 32-bit systems, performs a multiplication using values that can produce a zero seed in rare circumstances, which allows context-dependent attackers to predict subsequent values of the rand and mt_rand functions and possibly bypass protection mechanisms that rely on an unknown initial seed.
Impact
CVSS Severity (version 2.0):
Impact Subscore:
6.4
Exploitability Subscore:
10.0
CVSS Version 2 Metrics:
Access Vector: Network exploitable
Access Complexity: Low
Authentication: Not required to exploit
Impact Type:Provides unauthorized access, Allows partial confidentiality, integrity, and availability violation; Allows unauthorized disclosure of information; Allows disruption of service
References to Advisories, Solutions, and Tools
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External Source: FEDORA
Name: FEDORA-2008-3606
External Source: FEDORA
Name: FEDORA-2008-3864
External Source: XF
Name: php-generateseed-weak-security(42226)
External Source: UBUNTU
Name: USN-628-1
External Source: MISC
Name: http://www.sektioneins.de/advisories/SE-2008-02.txt
External Source: BUGTRAQ
Name: 20080506 Advisory SE-2008-02: PHP GENERATE_SEED() Weak Random Number Seed Vulnerability
External Source: REDHAT
Name: RHSA-2008:0582
External Source: REDHAT
Name: RHSA-2008:0546
External Source: REDHAT
Name: RHSA-2008:0545
External Source: REDHAT
Name: RHSA-2008:0544
External Source: REDHAT
Name: RHSA-2008:0505
External Source: MANDRIVA
Name: MDVSA-2008:130
External Source: MANDRIVA
Name: MDVSA-2008:129
External Source: MANDRIVA
Name: MDVSA-2008:128
External Source: MANDRIVA
Name: MDVSA-2008:127
External Source: MANDRIVA
Name: MDVSA-2008:126
External Source: MANDRIVA
Name: MDVSA-2008:125
External Source: DEBIAN
Name: DSA-1789
External Source: SREASON
Name: 3859
External Source: SECUNIA
Name: 35003
External Source: SECUNIA
Name: 31200
External Source: SECUNIA
Name: 31124
External Source: SECUNIA
Name: 31119
External Source: SECUNIA
Name: 30967
External Source: SECUNIA
Name: 30828
External Source: SECUNIA
Name: 30757
External Source: SUSE
Name: SUSE-SR:2008:014
External Source: FULLDISC
Name: 20080506 Advisory SE-2008-02: PHP GENERATE_SEED() Weak Random Number Seed Vulnerability
External Source: XF
Name: php-generateseed-security-bypass(42284)
