What’s Vulnerable › Vulnerabilities

CVE-2006-6383

• Severity: medium (CVSS 4.6 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.1% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2006-12-10 · updated 2026-06-16
• Weakness: CWE-20

Description

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.

Affected products

• PHP: 4.4.0, 5.2.0

References

• 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
• http://lists.suse.com/archive/suse-security-announce/2007-Mar/0003.html
• http://secunia.com/advisories/24022
• http://secunia.com/advisories/24514
• http://securityreason.com/achievement_securityalert/43
• http://securityreason.com/securityalert/2000
• http://www.mandriva.com/security/advisories?name=MDKSA-2007:038
• http://www.openpkg.com/security/advisories/OpenPKG-SA-2007.010.html
• http://www.securityfocus.com/archive/1/453938/30/9270/threaded
• http://www.securityfocus.com/bid/21508
• 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
• http://lists.suse.com/archive/suse-security-announce/2007-Mar/0003.html

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