Tuesday, March 23, 2021

CVE-2021-21359

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.

References to Advisories, Solutions, and Tools


References to Advisories, Solutions, and Tools

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Resourcehttps://github.com/TYPO3/TYPO3.CMS/security/advisories/GHSA-4p9g-qgx9-397phttps://packagist.org/packages/typo3/cms-corehttps://typo3.org/security/advisory/typo3-core-sa-2021-005
 

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Thanks for everything Templateism - You should have written the code a little more complicated