Input validation error in PHP - CVE-2011-1398

Vulnerability details

The vulnerability allows a remote non-authenticated attacker to manipulate data.

The sapi_header_op function in main/SAPI.c in PHP before 5.3.11 and 5.4.x before 5.4.0RC2 does not check 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.

Affected software

How to mitigate CVE-2011-1398

Links to Public Exploits and PoC-codes

• Exploit #4321 - PHP 5.3.11/5.4.0RC2 - 'header()' HTTP Header Injection (August 11, 2020)

External References

• http://article.gmane.org/gmane.comp.php.devel/70584
• http://lists.opensuse.org/opensuse-security-announce/2013-08/msg00006.html
• http://openwall.com/lists/oss-security/2012/08/29/5
• http://openwall.com/lists/oss-security/2012/09/05/15
• http://rhn.redhat.com/errata/RHSA-2013-1307.html
• http://secunia.com/advisories/55078
• http://security-tracker.debian.org/tracker/CVE-2011-1398
• http://www.securitytracker.com/id?1027463
• http://www.ubuntu.com/usn/USN-1569-1
• https://bugs.php.net/bug.php?id=60227

Related Security Bulletins

• Multiple vulnerabilities in PHP
• SUSE Linux update for PHP5
• Gentoo update for PHP