Vulnerability Details : 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.
Published 2012-08-30 22:55:02
Updated 2013-10-11 03:34:31
Source MITRE
View at NVD,   CVE.org
Vulnerability category: Input validation

Threat overview for CVE-2011-1398

Top countries where our scanners detected CVE-2011-1398
Top open port discovered on systems with this issue 80
IPs affected by CVE-2011-1398 40,300
Threat actors abusing to this issue? Yes
Find out if you* are affected by CVE-2011-1398!
*Directly or indirectly through your vendors, service providers and 3rd parties. Powered by attack surface intelligence from SecurityScorecard.

Exploit prediction scoring system (EPSS) score for CVE-2011-1398

Probability of exploitation activity in the next 30 days: 1.27%

Percentile, the proportion of vulnerabilities that are scored at or less: ~ 85 % EPSS Score History EPSS FAQ

CVSS scores for CVE-2011-1398

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source
4.3
 MEDIUM AV:N/AC:M/Au:N/C:N/I:P/A:N
8.6
2.9
 NIST

CWE ids for CVE-2011-1398

  • The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.
    Assigned by: nvd@nist.gov (Primary)

References for CVE-2011-1398

Products affected by CVE-2011-1398

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