CVE-2009-4018

Severity

75%

Complexity

99%

Confidentiality

106%

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.

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.

CVSS 2.0 Base Score 7.5. CVSS Attack Vector: network. CVSS Attack Complexity: low. CVSS Vector: (AV:N/AC:L/Au:N/C:P/I:P/A:P).

Overview

Type

PHP

First reported 15 years ago

2009-11-29 13:07:00

Last updated 6 years ago

2018-10-30 16:26:00

Affected Software

PHP PHP_FI 1.0

1.0

PHP PHP_FI 2.0

2.0

PHP PHP_FI 2.0b10

2.0b10

PHP PHP 3.0

3.0

PHP PHP 3.0.1

3.0.1

PHP PHP 3.0.2

3.0.2

PHP PHP 3.0.3

3.0.3

PHP PHP 3.0.4

3.0.4

PHP PHP 3.0.5

3.0.5

PHP PHP 3.0.6

3.0.6

PHP PHP 3.0.7

3.0.7

PHP PHP 3.0.8

3.0.8

PHP PHP 3.0.9

3.0.9

PHP PHP 3.0.10

3.0.10

PHP PHP 3.0.11

3.0.11

PHP PHP 3.0.12

3.0.12

PHP PHP 3.0.13

3.0.13

PHP PHP 3.0.14

3.0.14

PHP PHP 3.0.15

3.0.15

PHP PHP 3.0.16

3.0.16

PHP PHP 3.0.17

3.0.17

PHP PHP 3.0.18

3.0.18

PHP 4.0.0

4.0

PHP PHP 4.0 Beta 1

4.0

PHP PHP 4.0 Beta 2

4.0

PHP PHP 4.0 Beta 3

4.0

PHP PHP 4.0 Beta 4

4.0

PHP PHP 4.0 Beta 4 Patch Level 1

4.0

PHP 4.0 Release Candidate 1

4.0

PHP 4.0 Release Candidate 2

4.0

PHP PHP 4.0.0

4.0.0

PHP PHP 4.0.1

4.0.1

PHP PHP 4.0.2

4.0.2

PHP PHP 4.0.3

4.0.3

PHP PHP 4.0.4

4.0.4

PHP PHP 4.0.5

4.0.5

PHP PHP 4.0.6

4.0.6

PHP PHP 4.0.7

4.0.7

PHP 4.0.7 Release Candidate 1

4.0.7

PHP 4.0.7 Release Candidate 2

4.0.7

PHP 4.0.7 Release Candidate 3

4.0.7

PHP PHP 4.1.0

4.1.0

PHP PHP 4.1.1

4.1.1

PHP PHP 4.1.2

4.1.2

PHP PHP 4.2.0

4.2.0

PHP PHP 4.2.1

4.2.1

PHP PHP 4.2.2

4.2.2

PHP PHP 4.2.3

4.2.3

PHP PHP 4.3.0

4.3.0

PHP PHP 4.3.1

4.3.1

PHP PHP 4.3.2

4.3.2

PHP PHP 4.3.3

4.3.3

PHP PHP 4.3.4

4.3.4

PHP PHP 4.3.5

4.3.5

PHP PHP 4.3.6

4.3.6

PHP PHP 4.3.7

4.3.7

PHP PHP 4.3.8

4.3.8

PHP PHP 4.3.9

4.3.9

PHP PHP 4.3.10

4.3.10

PHP PHP 4.3.11

4.3.11

PHP PHP 4.4.0

4.4.0

PHP PHP 4.4.1

4.4.1

PHP PHP 4.4.2

4.4.2

PHP PHP 4.4.3

4.4.3

PHP PHP 4.4.4

4.4.4

PHP PHP 4.4.5

4.4.5

PHP PHP 4.4.6

4.4.6

PHP PHP 4.4.7

4.4.7

PHP 4.4.8

4.4.8

PHP 4.4.9

4.4.9

PHP PHP 5.0.0

5.0.0

PHP PHP 5.0.0 Beta1

5.0.0

PHP PHP 5.0.0 Beta2

5.0.0

PHP PHP 5.0.0 Beta3

5.0.0

PHP PHP 5.0.0 Beta4

5.0.0

PHP PHP 5.0.0 RC1

5.0.0

PHP PHP 5.0.0 RC2

5.0.0

PHP PHP 5.0.0 RC3

5.0.0

PHP PHP 5.0.1

5.0.1

PHP PHP 5.0.2

5.0.2

PHP PHP 5.0.3

5.0.3

PHP PHP 5.0.4

5.0.4

PHP PHP 5.0.5

5.0.5

PHP PHP 5.1.0

5.1.0

PHP PHP 5.1.1

5.1.1

PHP PHP 5.1.2

5.1.2

PHP PHP 5.1.3

5.1.3

PHP 5.1.4

5.1.4

PHP PHP 5.1.5

5.1.5

PHP PHP 5.1.6

5.1.6

PHP 5.2.0

5.2.0

PHP 5.2.2

5.2.2

PHP 5.2.4

5.2.4

PHP 5.2.6

5.2.6

PHP 5.2.7

5.2.7

PHP 5.2.8

5.2.8

PHP 5.2.9

5.2.9

PHP PHP

PHP 5.3.0

5.3.0

References

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

Exploit, Patch

SSRT100152

[oss-security] 20091122 Re: CVE request: php 5.3.1 update

Patch

[oss-security] 20091123 Re: CVE request: php 5.3.1 - proc_open() bypass PHP Bug #49026 [was: Re: CVE request: php 5.3.1 update]

Patch

40262

41480

41490

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

Patch

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

Patch

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

Patch

SSRT100219

MDVSA-2009:303

[oss-security] 20091123 Re: CVE request: php 5.3.1 - proc_open() bypass PHP Bug #49026 [was: Re: CVE request: php 5.3.1 update]

Patch

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

37138

oval:org.mitre.oval:def:7256

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