CVE-2023-28998
Nextcloud Desktop client misbehaves with E2EE when the server returns empty list of metadata keys
- State
- Published
- Severity
- 6.7 Medium
- Published
- Apr 4, 2023
- Updated
- Feb 11, 2025
- Reserved
- Mar 29, 2023
Description
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 gain full access to an end-to-end encrypted folder. They can decrypt files, recover the folder structure, and add new files. Users should upgrade the Nextcloud Desktop client to 3.6.5 to receive a patch. No known workarounds are available.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 6.7 Medium | CVSS:3.1/AV:P/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:N | GitHub_M |
Weaknesses
- CWE-325 Missing Cryptographic Step
Affected Products
| Product | Versions |
|---|---|
security-advisoriesnextcloud |
|
References
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