CVE-2011-1398
MEDIUM severity · CVSS 4.3 · Improper input validation
4.3CVSS MEDIUM
Summary
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.
Impact & exploitability
Attack vectorNetwork
Attack complexity—
Privileges required—
User interaction—
Confidentiality impactNone
Integrity impact—
Availability impactNone
Exploit probability (EPSS)10%
AV:N/AC:M/Au:N/C:N/I:P/A:N
Affected products we track (1)
Recommendation
Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.
Additional information
- NVD record
- 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