Allele Security Alert
Denial of Service in Online Media Asset Handling
TYPO3 7.0.0-7.6.31, 8.0.0-8.7.20 and 9.0.0-9.5.1
TYPO3 versions 7.6.32, 8.7.21 or 9.5.2
Proof of concept
Online Media Asset Handling (*.youtube and *.vimeo files) in the TYPO3 backend is vulnerable to denial of service. Putting large files with according file extensions results in high consumption of system resources. This can lead to exceeding limits of the current PHP process which results in a dysfunctional backend component. A valid backend user account or write access on the server system (e.g. SFTP) is needed in order to exploit this vulnerability.
Michael Schams and Oliver Hader (TYPO3 core team)
TYPO3 9.5.2, 8.7.21 and 7.6.32 security releases published
TYPO3-CORE-SA-2018-011: Denial of Service in Online Media Asset Handling
[SECURITY] Avoid DoS in Online Media Helper
[TYPO3-announce] Announcing TYPO3 v9.5.2, v8.7.21 and v7.6.32 security releases
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Last modified: February 1, 2019