National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2007-1522 Detail

Description

Double free vulnerability in the session extension in PHP 5.2.0 and 5.2.1 allows context-dependent attackers to execute arbitrary code via illegal characters in a session identifier, which is rejected by an internal session storage module, which calls the session identifier generator with an improper environment, leading to code execution when the generator is interrupted, as demonstrated by triggering a memory limit violation or certain PHP errors.

Source:  MITRE      Last Modified:  03/20/2007

Quick Info

CVE Dictionary Entry:
CVE-2007-1522
Original release date:
03/20/2007
Last revised:
03/07/2011
Source:
US-CERT/NIST

Impact

CVSS Severity (version 2.0):
CVSS v2 Base Score:
6.8 MEDIUM
Vector:
(AV:N/AC:M/Au:N/C:P/I:P/A:P) (legend)
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:
Provides unauthorized access, Allows partial confidentiality, integrity, and availability violation; Allows unauthorized disclosure of information; Allows disruption of service

Vendor Statements (disclaimer)

Official Statement from Red Hat (04/16/2007)

The PHP interpreter does not offer a reliable "sandboxed" security layer (as found in, say, a JVM) in which untrusted scripts can be run; any script run by the PHP interpreter must be trusted with the privileges of the interpreter itself. We therefore do not classify this issue as security-sensitive since no trust boundary is crossed.

References to Advisories, Solutions, and Tools

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Hyperlink Resource Type Source Name
http://www.novell.com/linux/security/advisories/2007_32_php.html External Source SUSE SUSE-SA:2007:032
http://www.php-security.org/MOPB/MOPB-23-2007.html Exploit; Vendor Advisory External Source MISC http://www.php-security.org/MOPB/MOPB-23-2007.html
http://www.securityfocus.com/bid/22971 External Source BID 22971
http://www.vupen.com/english/advisories/2007/0960 External Source VUPEN ADV-2007-0960

Technical Details

Vulnerability Type (View All)

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