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CVE-2011-1398

Published: 30 August 2012

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.

Notes

AuthorNote
tyhicks
Incomplete fix is tracked as CVE-2012-4388

Priority

Medium