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Advisory 2023-06/03 Denial of Service Vulnerability

Vulnerability type

Regular expression denial of service attack vulnerability

Severity factors

This vulnerability has a CVSS score of 7.5 with a high severity rating.

Versions affected

FileCloud Versions 22.1 and earlier

Version fixed

FileCloud Version 23.1 and later

Description

In versions of the http-cache semantics node module lower that 4.1.1, malicious header values could be sent to the server. 

Fix

These vulnerabilities have been fixed in FileCloud version 23.1.0.22595, which uses a newer version of the JS library to build the user interface.

What you should do to fix this vulnerability

  • If you are using FileCloud Server, it is recommended that you update to the latest version, which is 23.1.0.22595 or greater. This will resolve the issue.

  • If you are using FileCloud Online, your site has already been updated to the latest version.

If you have any questions about this advisory, please contact FileCloud support.