CVE-2009-4018

Public Date:
2009-07-23
Bugzilla:
541239: CVE-2009-4018 php: proc_open() safe mode restriction bypass

The MITRE CVE dictionary describes this issue as:

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.

Find out more about CVE-2009-4018 from the MITRE CVE dictionary dictionary and NIST NVD.

Statement

We do not consider safe_mode / open_basedir restriction bypass issues being security sensitive. For more details see http://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=169857#c1 and http://www.php.net/security-note.php

CVSS v2 metrics

NOTE: The following CVSS v2 metrics and score provided are preliminary and subject to review.

Base Score 3.3
Base Metrics AV:L/AC:M/Au:N/C:P/I:P/A:N
Access Vector Local
Access Complexity Medium
Authentication None
Confidentiality Impact Partial
Integrity Impact Partial
Availability Impact None

Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).

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CVE description copyright © 2017, The MITRE Corporation

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