6.5
CVE-2021-32728
- EPSS 0.21%
- Published 18.08.2021 16:15:07
- Last modified 21.11.2024 06:07:36
- Source security-advisories@github.com
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The Nextcloud Desktop Client is a tool to synchronize files from Nextcloud Server with a computer. Clients using the Nextcloud end-to-end encryption feature download the public and private key via an API endpoint. In versions prior to 3.3.0, the Nextcloud Desktop client fails to check if a private key belongs to previously downloaded public certificate. If the Nextcloud instance serves a malicious public key, the data would be encrypted for this key and thus could be accessible to a malicious actor. This issue is fixed in Nextcloud Desktop Client version 3.3.0. There are no known workarounds aside from upgrading.
Data is provided by the National Vulnerability Database (NVD)
Debian ≫ Debian Linux Version10.0
Debian ≫ Debian Linux Version11.0
Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.
| Type | Source | Score | Percentile |
|---|---|---|---|
| EPSS | FIRST.org | 0.21% | 0.434 |
| Source | Base Score | Exploit Score | Impact Score | Vector string |
|---|---|---|---|---|
| nvd@nist.gov | 6.5 | 2.8 | 3.6 |
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
|
| nvd@nist.gov | 4 | 8 | 2.9 |
AV:N/AC:L/Au:S/C:P/I:N/A:N
|
| security-advisories@github.com | 6.5 | 2.8 | 3.6 |
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
|
CWE-295 Improper Certificate Validation
The product does not validate, or incorrectly validates, a certificate.