Vulnerability Monitor

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CVE-2021-21359

TYPO3 is an open source PHP based web content management system. In TYPO3 before versions 9.5.25, 10.4.14, 11.1.1 requesting invalid or non-existing resources via HTTP triggers the page error handler which again could retrieve content to be shown as error message from another page. This leads to a scenario in which the application is calling itself recursively - amplifying the impact of the initial attack until the limits of the web server are exceeded. This is fixed in versions 9.5.25, 10.4.14, 11.1.1.

Published

2021-03-23T02:15:12.893

Last Modified

2024-11-21T05:48:11.650

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 5.9 (MEDIUM)

CVSSv2 Vector

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

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

10.0

Impact Score

2.9

Weaknesses
  • Type: Primary
    CWE-405
    CWE-674
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Application typo3 typo3 < 9.5.25 Yes
Application typo3 typo3 < 10.4.14 Yes
Application typo3 typo3 < 11.1.1 Yes
References