Vulnerability Details : CVE-2009-4018

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.

Published 2009-11-29 13:07:32

Updated 2018-10-30 16:26:21

Source Red Hat, Inc.

View at NVD, CVE.org

Exploit prediction scoring system (EPSS) score for CVE-2009-4018

Probability of exploitation activity in the next 30 days: 2.18%

Percentile, the proportion of vulnerabilities that are scored at or less: ~ 88 % EPSS Score History EPSS FAQ

CVSS scores for CVE-2009-4018

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Source
7.5	HIGH	AV:N/AC:L/Au:N/C:P/I:P/A:P	10.0	6.4	[email protected]
Access Vector: Network Access Complexity: Low Authentication: None Confidentiality Impact: Partial Integrity Impact: Partial Availability Impact: Partial

CWE ids for CVE-2009-4018

CWE-264

Assigned by: [email protected] (Primary)

Vendor statements for CVE-2009-4018

Red Hat 2009-11-30

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

References for CVE-2009-4018

Products affected by CVE-2009-4018

PHP » PHP
Versions up to, including, (<=) 5.2.10
cpe:2.3:a:php:php:*:*:*:*:*:*:*:*
Matching versions
PHP » PHP » Version: 1.0
cpe:2.3:a:php:php:1.0:*:*:*:*:*:*:*
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PHP » PHP » Version: 2.0b10
cpe:2.3:a:php:php:2.0b10:*:*:*:*:*:*:*
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PHP » PHP » Version: 2.0
cpe:2.3:a:php:php:2.0:*:*:*:*:*:*:*
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PHP » PHP » Version: 3.0
cpe:2.3:a:php:php:3.0:*:*:*:*:*:*:*
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PHP » PHP » Version: 3.0.1
cpe:2.3:a:php:php:3.0.1:*:*:*:*:*:*:*
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PHP » PHP » Version: 3.0.10
cpe:2.3:a:php:php:3.0.10:*:*:*:*:*:*:*
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PHP » PHP » Version: 3.0.3
cpe:2.3:a:php:php:3.0.3:*:*:*:*:*:*:*
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PHP » PHP » Version: 3.0.4
cpe:2.3:a:php:php:3.0.4:*:*:*:*:*:*:*
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PHP » PHP » Version: 3.0.5
cpe:2.3:a:php:php:3.0.5:*:*:*:*:*:*:*
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PHP » PHP » Version: 3.0.6
cpe:2.3:a:php:php:3.0.6:*:*:*:*:*:*:*
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PHP » PHP » Version: 3.0.11
cpe:2.3:a:php:php:3.0.11:*:*:*:*:*:*:*
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PHP » PHP » Version: 3.0.13
cpe:2.3:a:php:php:3.0.13:*:*:*:*:*:*:*
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PHP » PHP » Version: 3.0.8
cpe:2.3:a:php:php:3.0.8:*:*:*:*:*:*:*
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PHP » PHP » Version: 3.0.12
cpe:2.3:a:php:php:3.0.12:*:*:*:*:*:*:*
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PHP » PHP » Version: 3.0.2
cpe:2.3:a:php:php:3.0.2:*:*:*:*:*:*:*
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PHP » PHP » Version: 3.0.7
cpe:2.3:a:php:php:3.0.7:*:*:*:*:*:*:*
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PHP » PHP » Version: 3.0.9
cpe:2.3:a:php:php:3.0.9:*:*:*:*:*:*:*
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PHP » PHP » Version: 4.0
cpe:2.3:a:php:php:4.0:*:*:*:*:*:*:*
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PHP » PHP » Version: 4.0.1
cpe:2.3:a:php:php:4.0.1:*:*:*:*:*:*:*
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PHP » PHP » Version: 4.0.3
cpe:2.3:a:php:php:4.0.3:*:*:*:*:*:*:*
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PHP » PHP » Version: 4.0.4
cpe:2.3:a:php:php:4.0.4:*:*:*:*:*:*:*
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PHP » PHP » Version: 4.0.5
cpe:2.3:a:php:php:4.0.5:*:*:*:*:*:*:*
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PHP » PHP » Version: 4.0.6
cpe:2.3:a:php:php:4.0.6:*:*:*:*:*:*:*
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PHP » PHP » Version: 4.1.0
cpe:2.3:a:php:php:4.1.0:*:*:*:*:*:*:*
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PHP » PHP » Version: 4.1.1
cpe:2.3:a:php:php:4.1.1:*:*:*:*:*:*:*
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PHP » PHP » Version: 4.1.2
cpe:2.3:a:php:php:4.1.2:*:*:*:*:*:*:*
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PHP » PHP » Version: 3.0.16
cpe:2.3:a:php:php:3.0.16:*:*:*:*:*:*:*
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PHP » PHP » Version: 4.0.1 Update Patch2
cpe:2.3:a:php:php:4.0.1:patch2:*:*:*:*:*:*
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PHP » PHP » Version: 4.0.1 Update Patch1
cpe:2.3:a:php:php:4.0.1:patch1:*:*:*:*:*:*
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PHP » PHP » Version: 4.0.7
cpe:2.3:a:php:php:4.0.7:*:*:*:*:*:*:*
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PHP » PHP » Version: 3.0.17
cpe:2.3:a:php:php:3.0.17:*:*:*:*:*:*:*
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PHP » PHP » Version: 3.0.18
cpe:2.3:a:php:php:3.0.18:*:*:*:*:*:*:*
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PHP » PHP » Version: 3.0.15
cpe:2.3:a:php:php:3.0.15:*:*:*:*:*:*:*
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PHP » PHP » Version: 4.0.3 Update Patch1
cpe:2.3:a:php:php:4.0.3:patch1:*:*:*:*:*:*
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PHP » PHP » Version: 4.0.7 Update RC3
cpe:2.3:a:php:php:4.0.7:rc3:*:*:*:*:*:*
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PHP » PHP » Version: 3.0.14
cpe:2.3:a:php:php:3.0.14:*:*:*:*:*:*:*
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PHP » PHP » Version: 4.0.2
cpe:2.3:a:php:php:4.0.2:*:*:*:*:*:*:*
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PHP » PHP » Version: 4.0.7 Update RC1
cpe:2.3:a:php:php:4.0.7:rc1:*:*:*:*:*:*
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PHP » PHP » Version: 4.0.7 Update RC2
cpe:2.3:a:php:php:4.0.7:rc2:*:*:*:*:*:*
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PHP » PHP » Version: 4.2.0
cpe:2.3:a:php:php:4.2.0:*:*:*:*:*:*:*
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PHP » PHP » Version: 4.2.1
cpe:2.3:a:php:php:4.2.1:*:*:*:*:*:*:*
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PHP » PHP » Version: 4.2.2
cpe:2.3:a:php:php:4.2.2:*:*:*:*:*:*:*
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PHP » PHP » Version: 4.2.3
cpe:2.3:a:php:php:4.2.3:*:*:*:*:*:*:*
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PHP » PHP » Version: 4.2 DEV Edition
cpe:2.3:a:php:php:4.2:*:dev:*:*:*:*:*
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PHP » PHP » Version: 4.0 Update Beta1
cpe:2.3:a:php:php:4.0:beta1:*:*:*:*:*:*
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PHP » PHP » Version: 4.0 Update Beta3
cpe:2.3:a:php:php:4.0:beta3:*:*:*:*:*:*
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PHP » PHP » Version: 4.0 Update Beta4
cpe:2.3:a:php:php:4.0:beta4:*:*:*:*:*:*
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PHP » PHP » Version: 4.0 Update RC1
cpe:2.3:a:php:php:4.0:rc1:*:*:*:*:*:*
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PHP » PHP » Version: 4.0 Update RC2
cpe:2.3:a:php:php:4.0:rc2:*:*:*:*:*:*
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PHP » PHP » Version: 4.0.4 Update Patch1
cpe:2.3:a:php:php:4.0.4:patch1:*:*:*:*:*:*
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PHP » PHP » Version: 4.0 Update Beta 4 Patch1
cpe:2.3:a:php:php:4.0:beta_4_patch1:*:*:*:*:*:*
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PHP » PHP » Version: 4.0 Update Beta2
cpe:2.3:a:php:php:4.0:beta2:*:*:*:*:*:*
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PHP » PHP » Version: 4.3.0
cpe:2.3:a:php:php:4.3.0:*:*:*:*:*:*:*
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PHP » PHP » Version: 4.3.1
cpe:2.3:a:php:php:4.3.1:*:*:*:*:*:*:*
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PHP » PHP » Version: 4.4.6
cpe:2.3:a:php:php:4.4.6:*:*:*:*:*:*:*
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PHP » PHP » Version: 4.3.2
cpe:2.3:a:php:php:4.3.2:*:*:*:*:*:*:*
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PHP » PHP » Version: 5.0 Update RC2
cpe:2.3:a:php:php:5.0:rc2:*:*:*:*:*:*
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PHP » PHP » Version: 5.0 Update RC3
cpe:2.3:a:php:php:5.0:rc3:*:*:*:*:*:*
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PHP » PHP » Version: 4.3.3
cpe:2.3:a:php:php:4.3.3:*:*:*:*:*:*:*
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PHP » PHP » Version: 4.3.5
cpe:2.3:a:php:php:4.3.5:*:*:*:*:*:*:*
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PHP » PHP » Version: 4.3.6
cpe:2.3:a:php:php:4.3.6:*:*:*:*:*:*:*
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PHP » PHP » Version: 4.3.7
cpe:2.3:a:php:php:4.3.7:*:*:*:*:*:*:*
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PHP » PHP » Version: 5.0 Update RC1
cpe:2.3:a:php:php:5.0:rc1:*:*:*:*:*:*
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PHP » PHP » Version: 4.3.8
cpe:2.3:a:php:php:4.3.8:*:*:*:*:*:*:*
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PHP » PHP » Version: 4.3.4
cpe:2.3:a:php:php:4.3.4:*:*:*:*:*:*:*
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PHP » PHP » Version: 5.0.1
cpe:2.3:a:php:php:5.0.1:*:*:*:*:*:*:*
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PHP » PHP » Version: 5.0.2
cpe:2.3:a:php:php:5.0.2:*:*:*:*:*:*:*
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PHP » PHP » Version: 4.3.9
cpe:2.3:a:php:php:4.3.9:*:*:*:*:*:*:*
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PHP » PHP » Version: 5.0.0
cpe:2.3:a:php:php:5.0.0:*:*:*:*:*:*:*
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PHP » PHP » Version: 4.3.10
cpe:2.3:a:php:php:4.3.10:*:*:*:*:*:*:*
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PHP » PHP » Version: 5.0.3
cpe:2.3:a:php:php:5.0.3:*:*:*:*:*:*:*
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PHP » PHP » Version: 4.4.0
cpe:2.3:a:php:php:4.4.0:*:*:*:*:*:*:*
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PHP » PHP » Version: 4.0.0
cpe:2.3:a:php:php:4.0.0:*:*:*:*:*:*:*
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PHP » PHP » Version: 4.3.11
cpe:2.3:a:php:php:4.3.11:*:*:*:*:*:*:*
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PHP » PHP » Version: 5.0.4
cpe:2.3:a:php:php:5.0.4:*:*:*:*:*:*:*
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PHP » PHP » Version: 5.0.5
cpe:2.3:a:php:php:5.0.5:*:*:*:*:*:*:*
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PHP » PHP » Version: 5.0.0 Update Beta1
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PHP » PHP » Version: 5.0.0 Update Beta4
cpe:2.3:a:php:php:5.0.0:beta4:*:*:*:*:*:*
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PHP » PHP » Version: 5.0.0 Update RC1
cpe:2.3:a:php:php:5.0.0:rc1:*:*:*:*:*:*
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PHP » PHP » Version: 5.0.0 Update Beta2
cpe:2.3:a:php:php:5.0.0:beta2:*:*:*:*:*:*
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PHP » PHP » Version: 5.0.0 Update Beta3
cpe:2.3:a:php:php:5.0.0:beta3:*:*:*:*:*:*
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PHP » PHP » Version: 5.0.0 Update RC2
cpe:2.3:a:php:php:5.0.0:rc2:*:*:*:*:*:*
Matching versions
PHP » PHP » Version: 5.0.0 Update RC3
cpe:2.3:a:php:php:5.0.0:rc3:*:*:*:*:*:*
Matching versions
PHP » PHP » Version: 4.4.1
cpe:2.3:a:php:php:4.4.1:*:*:*:*:*:*:*
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PHP » PHP » Version: 4.4.2
cpe:2.3:a:php:php:4.4.2:*:*:*:*:*:*:*
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PHP » PHP » Version: 5.1.0
cpe:2.3:a:php:php:5.1.0:*:*:*:*:*:*:*
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PHP » PHP » Version: 5.1.1
cpe:2.3:a:php:php:5.1.1:*:*:*:*:*:*:*
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PHP » PHP » Version: 5.1.2
cpe:2.3:a:php:php:5.1.2:*:*:*:*:*:*:*
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PHP » PHP » Version: 5.1.3
cpe:2.3:a:php:php:5.1.3:*:*:*:*:*:*:*
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PHP » PHP » Version: 5.1.4
cpe:2.3:a:php:php:5.1.4:*:*:*:*:*:*:*
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PHP » PHP » Version: 4.4.3
cpe:2.3:a:php:php:4.4.3:*:*:*:*:*:*:*
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PHP » PHP » Version: 5.1.6
cpe:2.3:a:php:php:5.1.6:*:*:*:*:*:*:*
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PHP » PHP » Version: 5.1.5
cpe:2.3:a:php:php:5.1.5:*:*:*:*:*:*:*
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PHP » PHP » Version: 4.4.4
cpe:2.3:a:php:php:4.4.4:*:*:*:*:*:*:*
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PHP » PHP » Version: 5.2.0
cpe:2.3:a:php:php:5.2.0:*:*:*:*:*:*:*
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PHP » PHP » Version: 5.3.0
cpe:2.3:a:php:php:5.3.0:*:*:*:*:*:*:*
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PHP » PHP » Version: 4.4.9
cpe:2.3:a:php:php:4.4.9:*:*:*:*:*:*:*
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PHP » PHP » Version: 5.2.8
cpe:2.3:a:php:php:5.2.8:*:*:*:*:*:*:*
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PHP » PHP » Version: 4.4.7
cpe:2.3:a:php:php:4.4.7:*:*:*:*:*:*:*
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PHP » PHP » Version: 4.4.8
cpe:2.3:a:php:php:4.4.8:*:*:*:*:*:*:*
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PHP » PHP » Version: 5.2.9
cpe:2.3:a:php:php:5.2.9:*:*:*:*:*:*:*
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PHP » PHP » Version: 5.2.4
cpe:2.3:a:php:php:5.2.4:*:*:*:*:*:*:*
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PHP » PHP » Version: 5.2.6
cpe:2.3:a:php:php:5.2.6:*:*:*:*:*:*:*
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PHP » PHP » Version: 5.2.7
cpe:2.3:a:php:php:5.2.7:*:*:*:*:*:*:*
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PHP » PHP » Version: 4.4.5
cpe:2.3:a:php:php:4.4.5:*:*:*:*:*:*:*
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PHP » PHP » Version: 5.2.2
cpe:2.3:a:php:php:5.2.2:*:*:*:*:*:*:*
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PHP » PHP » Version: 4.0.7 Update RC4
cpe:2.3:a:php:php:4.0.7:rc4:*:*:*:*:*:*
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PHP » PHP » Version: 5
cpe:2.3:a:php:php:5:*:*:*:*:*:*:*
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PHP » PHP » Version: 4
cpe:2.3:a:php:php:4:*:*:*:*:*:*:*
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