CVE-2023-28997: Nextcloud Desktop: Initialization vector reuse in E2EE allows malicious server admin to break, manipulate, access files
The Nextcloud Desktop Client is a tool to synchronize files from Nextcloud Server. Starting with version 3.0.0 and prior to version 3.6.5, a malicious server administrator can recover and modify the contents of end-to-end encrypted files. Users should upgrade the Nextcloud Desktop client to 3.6.5 to receive a patch. No known workarounds are available.
Affected Software
Remediation
Patch Available
Event History
Frequently Asked Questions
What is CVE-2023-28997?
CVE-2023-28997 is a vulnerability in the Nextcloud Desktop Client that allows a malicious server administrator to recover and modify the contents of end-to-end encrypted files.
How severe is CVE-2023-28997?
CVE-2023-28997 has a severity rating of 6.5 out of 10.
How can I fix CVE-2023-28997?
To fix CVE-2023-28997, users should upgrade the Nextcloud Desktop client to version 3.6.5 or later.
Where can I find more information about CVE-2023-28997?
More information about CVE-2023-28997 can be found in the references section of the vulnerability report.
What is the CWE ID for CVE-2023-28997?
CVE-2023-28997 is associated with CWE ID 323.