National Cyber-Alert System
Vulnerability Summary for CVE-2006-4433
Original release date:08/29/2006
Last revised:03/08/2011
Source:
US-CERT/NIST
Overview
PHP before 4.4.3 and 5.x before 5.1.4 does not limit the character set of the session identifier (PHPSESSID) for third party session handlers, which might make it easier for remote attackers to exploit other vulnerabilities by inserting PHP code into the PHPSESSID, which is stored in the session file. NOTE: it could be argued that this not a vulnerability in PHP itself, rather a design limitation that enables certain attacks against session handlers that do not account for this limitation.
Impact
CVSS Severity (version 2.0 upgrade from v1.0):
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
Official Statement from Red Hat (10/30/2008)
We do not consider this to be a PHP flaw. The problem is caused by the insufficient input validation performed by Zend platform.
References to Advisories, Solutions, and Tools
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External Source: BUGTRAQ
Name: 20060824 Advisory 05/2006: Zend Platform Multiple Remote Vulnerabilities
Type: Advisory; Patch Information
External Source: MISC
Name: http://www.hardened-php.net/advisory_052006.128.html
Type: Advisory; Patch Information
External Source: SECUNIA
Name: 21573
Type: Advisory; Patch Information
External Source: VUPEN
Name: ADV-2006-3388
External Source: OSVDB
Name: 28273
External Source: OSVDB
Name: 28233
External Source: SREASON
Name: 1466
