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CVE-2009-4018

HIGH CVSS: 7.5 Published: 2009-11-29 Modified: 2026-06-16

Description

The proc_open function in ext/standard/proc_open.c in PHP before 5.2.11 and 5.3.x before 5.3.1 does not enforce the (1) safe_mode_allowed_env_vars and (2) safe_mode_protected_env_vars directives, which allows context-dependent attackers to execute programs with an arbitrary environment via the env parameter, as demonstrated by a crafted value of the LD_LIBRARY_PATH environment variable.

Affected Platforms

Php Php

Weakness Type

CWE-264

References