CVE-2011-1398

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.

Risk Information

Base Score

9.1

MODERATE

Vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

EPSS Score

Exploitation Probability

8.906

Associated Vulnerability

Vulnerability	OS Platform
Improper Input Validation Vulnerability (CVE-2011-1398)	NCM

Patch Details

No records found

References

https://nvd.nist.gov/vuln/detail/CVE-2023-1234
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1234