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Last updated: 10/24/2014 7:19:21 AM

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Vulnerability Summary for CVE-2012-4388

Original release date: 09/07/2012
Last revised: 09/11/2013
Source: US-CERT/NIST

Overview

The sapi_header_op function in main/SAPI.c in PHP 5.4.0RC2 through 5.4.0 does not properly determine a pointer during checks for %0D sequences (aka carriage return characters), which allows remote attackers to bypass an HTTP response-splitting protection mechanism via a crafted URL, related to improper interaction between the PHP header function and certain browsers, as demonstrated by Internet Explorer and Google Chrome. NOTE: this vulnerability exists because of an incorrect fix for CVE-2011-1398.

Impact

CVSS Severity (version 2.0):
CVSS v2 Base Score: 4.3 (MEDIUM) (AV:N/AC:M/Au:N/C:N/I:P/A:N) (legend)
Impact Subscore: 2.9
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

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External Source: MLIST
Name: [internals] 20120203 [PHP-DEV] The case of HTTP response splitting protection in PHP
External Source: SECTRACK
Name: 1027463
External Source: MLIST
Name: [oss-security] 20120905 Re: php header() header injection detection bypass
External Source: CONFIRM
Name: http://security-tracker.debian.org/tracker/CVE-2012-4388
External Source: MISC
Name: https://bugs.php.net/bug.php?id=60227
External Source: UBUNTU
Name: USN-1569-1
External Source: SUSE
Name: SUSE-SU-2013:1315
External Source: CONFIRM
Name: http://svn.php.net/viewvc/php/php-src/branches/PHP_5_4/main/SAPI.c?r1=323986&r2=323985&pathrev=323986
Type: Patch Information; Exploit
External Source: MLIST
Name: [oss-security] 20120829 php header() header injection detection bypass
External Source: MLIST
Name: [oss-security] 20120901 Re: php header() header injection detection bypass
External Source: MLIST
Name: [oss-security] 20120906 Re: Re: php header() header injection detection bypass

Technical Details

Vulnerability Type (View All)