National Cyber-Alert System
Vulnerability Summary for CVE-2007-1396
Original release date:03/10/2007
Last revised:09/05/2008
Source:
US-CERT/NIST
Overview
The import_request_variables function in PHP 4.0.7 through 4.4.6, and 5.x before 5.2.2, when called without a prefix, does not prevent the (1) GET, (2) POST, (3) COOKIE, (4) FILES, (5) SERVER, (6) SESSION, and other superglobals from being overwritten, which allows remote attackers to spoof source IP address and Referer data, and have other unspecified impact. NOTE: it could be argued that this is a design limitation of PHP and that only the misuse of this feature, i.e. implementation bugs in applications, should be included in CVE. However, it has been fixed by the vendor.
Impact
CVSS Severity (version 2.0):
Impact Subscore:
6.4
Exploitability Subscore:
8.6
CVSS Version 2 Metrics:
Access Vector: Network exploitable
Access Complexity: Medium
Authentication: Not required to exploit
Impact Type:Allows unauthorized disclosure of information; Allows unauthorized modification; Allows disruption of service
- Official Statement from Red Hat (03/19/2007)
-
Red Hat does not consider this to be a security vulnerability. Using import_request_variables() is generally a discouraged practice and it is improper use that can lead to security problems, not flaw of PHP itself.
References to Advisories, Solutions, and Tools
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External Source: BID
Name: 22886
External Source: BUGTRAQ
Name: 20070314 Re: Re: [Full-disclosure] PHP import_request_variables() arbitrary variable overwrite
External Source: BUGTRAQ
Name: 20070312 Re: [Full-disclosure] PHP import_request_variables() arbitrary variable overwrite
External Source: BUGTRAQ
Name: 20070310 Re: [Full-disclosure] PHP import_request_variables() arbitrary variable overwrite
External Source: BUGTRAQ
Name: 20070308 PHP import_request_variables() arbitrary variable overwrite
External Source: CONFIRM
Name: http://us2.php.net/releases/5_2_2.php
External Source: CONFIRM
Name: http://us2.php.net/releases/4_4_7.php
External Source: SREASON
Name: 2406
External Source: SECUNIA
Name: 26048
External Source: SUSE
Name: SUSE-SA:2007:044
