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Last updated: 5/26/2016 2:28:13 PM

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Vulnerability Summary for CVE-2012-1172

Original release date: 05/23/2012
Last revised: 09/21/2012


The file-upload implementation in rfc1867.c in PHP before 5.4.0 does not properly handle invalid [ (open square bracket) characters in name values, which makes it easier for remote attackers to cause a denial of service (malformed $_FILES indexes) or conduct directory traversal attacks during multi-file uploads by leveraging a script that lacks its own filename restrictions.


CVSS Severity (version 2.0):
CVSS v2 Base Score: 5.8 MEDIUM
Impact Subscore: 4.9
Exploitability Subscore: 8.6
CVSS Version 2 Metrics:
Access Vector: Network exploitable
Access Complexity: Medium
Authentication: Not required to exploit
Impact Type: Allows unauthorized modification; Allows disruption of service

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External Source: MISC
Name: https://nealpoole.com/blog/2011/10/directory-traversal-via-php-multi-file-uploads/
External Source: CONFIRM
Name: https://bugs.php.net/bug.php?id=55500
External Source: HP
Name: SSRT100856
External Source: FEDORA
Name: FEDORA-2012-6911
External Source: APPLE
Name: APPLE-SA-2012-09-19-2
External Source: CONFIRM
Name: https://bugs.php.net/bug.php?id=54374
External Source: CONFIRM
Name: http://svn.php.net/viewvc/php/php-src/branches/PHP_5_4/main/rfc1867.c?r1=321664&r2=321663&pathrev=321664
Type: Patch Information
External Source: FEDORA
Name: FEDORA-2012-6869
External Source: FEDORA
Name: FEDORA-2012-6907
External Source: CONFIRM
Name: http://support.apple.com/kb/HT5501
External Source: MISC
Name: http://isisblogs.poly.edu/2011/08/11/php-not-properly-checking-params/
External Source: MISC
Name: https://bugs.php.net/bug.php?id=48597
External Source: CONFIRM
Name: http://svn.php.net/viewvc?view=revision&revision=321664
External Source: MLIST
Name: [oss-security] 20120313 Re: CVE request for PHP 5.3.x Corrupted $_FILES indices lead to security concern
External Source: MISC
Name: https://bugs.php.net/bug.php?id=49683
External Source: MISC
Name: https://students.mimuw.edu.pl/~ai292615/php_multipleupload_overwrite.pdf
External Source: CONFIRM
Name: http://www.php.net/ChangeLog-5.php#5.4.0

Technical Details

Vulnerability Type (View All)