Vulnerability Monitor

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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

2012-08-30T22:55:02.497

Last Modified

2025-04-11T00:51:21.963

Status

Deferred

Source

[email protected]

Severity

CVSSv2: 4.3 (MEDIUM)

CVSSv2 Vector

AV:N/AC:M/Au:N/C:N/I:P/A:N

  • Access Vector: NETWORK
  • Access Complexity: MEDIUM
  • Authentication: NONE
  • Confidentiality Impact: NONE
  • Integrity Impact: PARTIAL
  • Availability Impact: NONE
Exploitability Score

8.6

Impact Score

2.9

Weaknesses
  • Type: Primary
    CWE-20
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Application php php ≤ 5.3.10 Yes
Application php php 5.3.0 Yes
Application php php 5.3.1 Yes
Application php php 5.3.2 Yes
Application php php 5.3.3 Yes
Application php php 5.3.4 Yes
Application php php 5.3.5 Yes
Application php php 5.3.6 Yes
Application php php 5.3.7 Yes
Application php php 5.3.8 Yes
Application php php 5.3.9 Yes
References