medium
6.4
CWE
264 22
Advisory Published
Updated

CVE-2011-2202: Path Traversal

First published: Thu Jun 16 2011(Updated: )

The rfc1867_post_handler 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."

Credit: secalert@redhat.com

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

Remedy

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

Remedy

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

Remedy

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

Remedy

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

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Reference Links

Frequently Asked Questions

  • 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.

  • 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.

  • 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.

  • 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.

  • 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

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