CVE-2011-2202: Path Traversal

Published Jun 16, 2011
·
Updated

The rfc1867posthandler function in main/rfc1867.c in PHP before 5.3.7 does not properly restrict filenames in multipart/form-data POST requests, which allows remote attackers to conduct absolute path traversal attacks, and possibly create or overwrite arbitrary files, via a crafted upload request, related to a "file path injection vulnerability."

Affected Software

72 affected components
PHP PHP<=5.3.6
PHP PHP=1.0
PHP PHP=2.0
PHP PHP=2.0b10
PHP PHP=3.0
PHP PHP=3.0.1
PHP PHP=3.0.2
PHP PHP=3.0.3
PHP PHP=3.0.4
PHP PHP=3.0.5
PHP PHP=3.0.6
PHP PHP=3.0.7
PHP PHP=3.0.8
PHP PHP=3.0.9
PHP PHP=3.0.10
PHP PHP=3.0.11
PHP PHP=3.0.12
PHP PHP=3.0.13
PHP PHP=3.0.14
PHP PHP=3.0.15
PHP PHP=3.0.16
PHP PHP=3.0.17
PHP PHP=3.0.18
PHP PHP=4.0
PHP PHP=4.0-beta_4_patch1
PHP PHP=4.0-beta1
PHP PHP=4.0-beta2
PHP PHP=4.0-beta3
PHP PHP=4.0-beta4
PHP PHP=4.0.0
PHP PHP=4.0.1
PHP PHP=4.0.2
PHP PHP=4.0.3
PHP PHP=4.0.4
PHP PHP=4.0.5
PHP PHP=4.0.6
PHP PHP=4.0.7
PHP PHP=4.1.0
PHP PHP=4.1.1
PHP PHP=4.1.2
PHP PHP=4.2.0
PHP PHP=4.2.1
PHP PHP=4.2.2
PHP PHP=4.2.3
PHP PHP=4.3.0
PHP PHP=4.3.1
PHP PHP=4.3.2
PHP PHP=4.3.3
PHP PHP=4.3.4
PHP PHP=4.3.5
PHP PHP=4.3.6
PHP PHP=4.3.7
PHP PHP=4.3.8
PHP PHP=4.3.9
PHP PHP=4.3.10
PHP PHP=4.3.11
PHP PHP=4.4.0
PHP PHP=4.4.1
PHP PHP=4.4.2
PHP PHP=4.4.3
PHP PHP=4.4.4
PHP PHP=4.4.5
PHP PHP=4.4.6
PHP PHP=4.4.7
PHP PHP=4.4.8
PHP PHP=4.4.9
PHP PHP=5.3.0
PHP PHP=5.3.1
PHP PHP=5.3.2
PHP PHP=5.3.3
PHP PHP=5.3.4
PHP PHP=5.3.5

Remediation

Patch Available

http://openwall.com/lists/oss-security/2011/06/12/5

Patch Available

http://openwall.com/lists/oss-security/2011/06/13/15

Patch Available

http://svn.php.net/viewvc/php/php-src/branches/PHP_5_3/main/rfc1867.c?r1=312103&r2=312102&pathrev=312103

Patch Available

http://svn.php.net/viewvc?view=revision&revision=312103

Event History

Jun 16, 2011
CVE Published
via MITRE·11:00 PM
Data Sourced
via MITRE·11:00 PM
Description

Frequently Asked Questions

1

What is the severity of CVE-2011-2202?

CVE-2011-2202 has a high severity rating due to its potential for remote file manipulation and absolute path traversal.

2

How do I fix CVE-2011-2202?

To fix CVE-2011-2202, upgrade PHP to version 5.3.7 or later to ensure proper restrictions on filenames.

3

What are the risks associated with CVE-2011-2202?

The risks include unauthorized file creation or overwriting on the server, which could lead to further exploitation.

4

Which versions of PHP are affected by CVE-2011-2202?

CVE-2011-2202 affects PHP versions prior to 5.3.7, including versions 5.3.6 and earlier.

5

How can I mitigate issues related to CVE-2011-2202 until I can apply a patch?

Mitigation measures include disabling file uploads in PHP or restricting file upload directories to limit exposure.

Company

Resources

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
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