cve/2015/CVE-2015-6835.md

CVE-2015-6835

Description

The session deserializer in PHP before 5.4.45, 5.5.x before 5.5.29, and 5.6.x before 5.6.13 mishandles multiple php_var_unserialize calls, which allow remote attackers to execute arbitrary code or cause a denial of service (use-after-free) via crafted session content.

POC

Reference

• https://bugs.php.net/bug.php?id=70219
• https://hackerone.com/reports/103998

Github

• https://github.com/RobinHoutevelts/Joomla-CVE-2015-8562-PHP-POC
• https://github.com/VoidSec/Joomla_CVE-2015-8562
• https://github.com/leoambrus/CheckersNomisec
• https://github.com/ockeghem/CVE-2015-6835-checker