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Vulnerability Details : CVE-2012-4388

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.
Publish Date : 2012-09-07 Last Update Date : 2013-09-11
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- CVSS Scores & Vulnerability Types

CVSS Score
Confidentiality Impact None (There is no impact to the confidentiality of the system.)
Integrity Impact Partial (Modification of some system files or information is possible, but the attacker does not have control over what can be modified, or the scope of what the attacker can affect is limited.)
Availability Impact None (There is no impact to the availability of the system.)
Access Complexity Medium (The access conditions are somewhat specialized. Some preconditions must be satistified to exploit)
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s) Http response splittingBypass a restriction or similar

- Related OVAL Definitions

Title Definition Id Class Family
SUSE-SU-2013:1315-1 -- Security update for PHP5 oval:org.mitre.oval:def:25781 unix
USN-1569-1 -- php5 vulnerabilities oval:org.mitre.oval:def:17978 unix
OVAL (Open Vulnerability and Assessment Language) definitions define exactly what should be done to verify a vulnerability or a missing patch. Check out the OVAL definitions if you want to learn what you should do to verify a vulnerability.

- Products Affected By CVE-2012-4388

# Product Type Vendor Product Version Update Edition Language
1 Application PHP PHP 5.4.0 RC2 Version Details Vulnerabilities
2 Application PHP PHP 5.4.0 Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions

- References For CVE-2012-4388 CONFIRM
SUSE SUSE-SU-2013:1315
MLIST [internals] 20120203 [PHP-DEV] The case of HTTP response splitting protection in PHP
MLIST [oss-security] 20120829 php header() header injection detection bypass
MLIST [oss-security] 20120906 Re: Re: php header() header injection detection bypass
MLIST [oss-security] 20120905 Re: php header() header injection detection bypass
MLIST [oss-security] 20120901 Re: php header() header injection detection bypass

- Metasploit Modules Related To CVE-2012-4388

There are not any metasploit modules related to this CVE entry (Please visit for more information)

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