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Mend.io Vulnerability Database

CVE-2009-4018

Date: November 27, 2009

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.

Language: C

Severity Score

4.0

Related Resources (19)

Url: http://marc.info/?l=bugtraq&m=127680701405735&w=2

Url: https://nvd.nist.gov/vuln/detail/CVE-2009-4018

Url: http://www.openwall.com/lists/oss-security/2009/11/23/15

Url: http://www.itrc.hp.com/service/cki/docDisplay.do?docId=emr_na-c02512995

Url: http://marc.info/?l=oss-security&m=125897935330618&w=2

Url: https://people.canonical.com/~ubuntu-security/cve/CVE-2009-4018

Url: http://secunia.com/advisories/40262

Url: http://svn.php.net/viewvc/?view=revision&revision=286360

Url: https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7256

Url: http://svn.php.net/viewvc/php/php-src/branches/PHP_5_2/ext/standard/proc_open.c?r1=286360&r2=286359&pathrev=286360

Url: http://www.securityfocus.com/bid/37138

Url: http://secunia.com/advisories/41480

Url: http://secunia.com/advisories/41490

Url: http://www.php.net/ChangeLog-5.php

Url: http://marc.info/?l=oss-security&m=125886770008678&w=2

Url: http://www.mandriva.com/security/advisories?name=MDVSA-2009:303

Url: http://bugs.php.net/bug.php?id=49026

Url: http://svn.php.net/viewvc/php/php-src/branches/PHP_5_3/ext/standard/proc_open.c?r1=286360&r2=286359&pathrev=286360

Url: https://www.mend.io/vulnerability-database/CVE-2009-4018

Severity Score

4.0

Weakness Type (CWE)

Permissions, Privileges, and Access Control

CWE-264

CVSS v3.1

Base Score:	4.0
Attack Vector (AV):	LOCAL
Attack Complexity (AC):	HIGH
Privileges Required (PR):	NONE
User Interaction (UI):	NONE
Scope (S):	UNCHANGED
Confidentiality (C):	LOW
Integrity (I):	LOW
Availability (A):	NONE

CVSS v2

Base Score:	7.5
Access Vector (AV):	NETWORK
Access Complexity (AC):	LOW
Authentication (AU):	NONE
Confidentiality (C):	PARTIAL
Integrity (I):	PARTIAL
Availability (A):	PARTIAL
Additional information:

Mend.io Vulnerability Database

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CVE-2009-4018

Date: November 27, 2009

Language: C

Severity Score

Related Resources (19)

Severity Score

Weakness Type (CWE)

CVSS v3.1

CVSS v2

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