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TYPO3 DoS Vulnerability (TYPO3-CORE-SA-2021-005)
Information
Severity
Severity
Family
Family
CVSSv2 Base
CVSSv2 Base
CVSSv2 Vector
CVSSv2 Vector
Solution Type
Solution Type
Created
Created
Modified
Modified
Summary
TYPO3 is prone to a denial of service (DoS) vulnerability.
Insight
Insight
Requesting invalid or non-existing resources via HTTP triggers the page error handler which again could retrieve content to be shown as an 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.
Affected Software
Affected Software
TYPO3 version 9.0.0 through 9.5.24, 10.0.0 through 10.4.13 and 11.0.0 through 11.1.0.
Detection Method
Detection Method
Checks if a vulnerable version is present on the target host.
Solution
Solution
Update to version 9.5.25, 10.4.14, 11.1.1 or later.