National Cyber-Alert System
Vulnerability Summary for CVE-2007-1700
Original release date:03/27/2007
Last revised:09/05/2008
Source:
US-CERT/NIST
Overview
The session extension in PHP 4 before 4.4.5, and PHP 5 before 5.2.1, calculates the reference count for the session variables without considering the internal pointer from the session globals, which allows context-dependent attackers to execute arbitrary code via a crafted string in the session_register after unsetting HTTP_SESSION_VARS and _SESSION, which destroys the session data Hashtable.
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
- 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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External Source: BID
Name: 23119
External Source: MISC
Name: http://www.php-security.org/MOPB/MOPB-30-2007.html
External Source: UBUNTU
Name: USN-455-1
External Source: SUSE
Name: SUSE-SA:2007:032
External Source: VUPEN
Name: ADV-2007-2374
External Source: VUPEN
Name: ADV-2007-1991
External Source: DEBIAN
Name: DSA-1283
External Source: GENTOO
Name: GLSA-200705-19
External Source: SECUNIA
Name: 25850
External Source: SECUNIA
Name: 25445
External Source: SECUNIA
Name: 25423
External Source: SECUNIA
Name: 25062
External Source: SECUNIA
Name: 25057
External Source: SECUNIA
Name: 25056
External Source: HP
Name: SSRT071429
External Source: HP
Name: SSRT071423