PHP ASLR Defeat - /proc/self/maps and /proc/self/mem Read by PHP Process

Ethan Andrews@eandrews

•updated Jun 28, 2026•1•0•6

Detects PHP processes reading both /proc/self/maps and /proc/self/mem within a short time window. This activity is indicative of an Address Space Layout Randomization (ASLR) bypass technique, specifically associated with exploits attempting to compute memory offsets for sensitive functions (e.g., zend_execute_internal, zif_system) to facilitate Remote Code Execution (RCE).