Improper input validation in PHP
CVE-2011-1398
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.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
CVSS v2 metric
CVSS v2 base score 4.3 (Medium). Vector: AV:N/AC:M/Au:N/C:N/I:P/A:N. This CVE predates CVSS v3 and has no v3 score from NVD.
EPSS exploit prediction
EPSS: 0.102 (95.5th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 96th percentile — 95.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.102 · newest: 0.102 · change: 0.000
Affected products
- PHP — versions 5.3.0, 5.3.1, 5.3.2
Weakness classification (CWE)
Public proof-of-concept exploits
References
- openwall.com/lists/oss-security/2012/09/05/15 (mailing-list)
- security-tracker.debian.org/tracker/CVE-2011-1398
- www.securitytracker.com/id (vdb-entry)
- secunia.com/advisories/55078 (third-party-advisory)
- bugs.php.net/bug.php
- rhn.redhat.com/errata/RHSA-2013-1307.html (vendor-advisory)
- openwall.com/lists/oss-security/2012/08/29/5 (mailing-list)
- lists.opensuse.org/opensuse-security-announce/2013-08/msg00006.html (vendor-advisory)
- article.gmane.org/gmane.comp.php.devel/70584 (mailing-list)
- www.ubuntu.com/usn/USN-1569-1 (vendor-advisory)
Frequently asked questions
- What is CVE-2011-1398?
- CVE-2011-1398 is a vulnerability in PHP, classified under Improper Input Validation. Published 2012-08-30.
- Is CVE-2011-1398 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.