National Cyber-Alert System

Vulnerability Summary for CVE-2006-6383

Overview

PHP 5.2.0 and 4.4 allows local users to bypass safe_mode and open_basedir restrictions via a malicious path and a null byte before a ";" in a session_save_path argument, followed by an allowed path, which causes a parsing inconsistency in which PHP validates the allowed path but sets session.save_path to the malicious path.

Impact

CVSS Severity (version 2.0):

CVSS Version 2 Metrics:

Vendor Statments (disclaimer)

Official Statement from Red Hat (12/19/2006)

We do not consider these to be security issues. For more details see http://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=169857#c1 and http://www.php.net/security-note.php

References to Advisories, Solutions, and Tools

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External Source: BID

Name: 21508

Hyperlink:http://www.securityfocus.com/bid/21508

External Source: BUGTRAQ

Name: 20061208 PHP 5.2.0 session.save_path safe_mode and open_basedir bypass

Hyperlink:http://www.securityfocus.com/archive/1/archive/1/453938/30/9270/threaded

External Source: SREASONRES

Name: 20061208 PHP 5.2.0 session.save_path safe_mode and open_basedir bypass

Hyperlink:http://securityreason.com/achievement_securityalert/43

External Source: CONFIRM

Name: http://cvs.php.net/viewcvs.cgi/php-src/ext/session/session.c?r1=1.336.2.53.2.7&r2=1.336.2.53.2.8

Hyperlink:http://cvs.php.net/viewcvs.cgi/php-src/ext/session/session.c?r1=1.336.2.53.2.7&r2=1.336.2.53.2.8

External Source: OPENPKG

Name: OpenPKG-SA-2007.010

Hyperlink:http://www.openpkg.com/security/advisories/OpenPKG-SA-2007.010.html

External Source: MANDRIVA

Name: MDKSA-2007:038

Hyperlink:http://www.mandriva.com/security/advisories?name=MDKSA-2007:038

External Source: SREASON

Name: 2000

Hyperlink:http://securityreason.com/securityalert/2000

External Source: SECUNIA

Name: 24514

Hyperlink:http://secunia.com/advisories/24514

External Source: SECUNIA

Name: 24022

Hyperlink:http://secunia.com/advisories/24022

External Source: SUSE

Name: SUSE-SA:2007:020

Hyperlink:http://lists.suse.com/archive/suse-security-announce/2007-Mar/0003.html