Description: 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.
CVE-2021-21359
Published Date: 2021-03-23T02:15Z
Last Modified: 2021-03-26T17:54Z
CVSS Score: 7.5 (HIGH)
EPSS Score: 0.18%
Risk Score: 5.25 (HIGH)
Risk Score based on CVSS score and EPSS. This score is for reference purposes and is not internationally recognized.
CVSS:
7.5 |
EPSS:
0.18%
Mitre ATT&CK Technical v15.1
T1153 – Source
T1583.004 – Server
T1584.004 – Server
T1053.002 – At
Technical Analysis & Mitigation Measures
Reference Links
Vendor - Produce - Version
typo3 - typo3, typo3 - typo3, typo3 - typo3
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