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Unscored Public exploit CVE-2011-1398 EUVD-2011-1405GHSA-g6fq-45x6-cmh4

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 re…

Published Aug 30, 2012 · Updated Aug 6, 2024 · Assigned by mitre

Description

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.

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

Red Hat

Security tracker ↗
ReleasePackageFixed inAdvisory
RHEL 6 php +26 5.3.3-22.el6 RHSA-2013:0514
RHEL 5 php +18 5.1.6-43.el5_10 RHSA-2013:1814
RHEL 5 php53 +20 5.3.3-21.el5 RHSA-2013:1307

Public exploits

Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.

Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.

Exploit-DB 1

Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.

Advisories 3

References