9.8

CVE-2021-32726

Webauthn tokens not removed after user has been deleted

Webauthn tokens not removed after user has been deleted

Nextcloud Server is a Nextcloud package that handles data storage. In versions prior to 19.0.13, 20.011, and 21.0.3, webauthn tokens were not deleted after a user has been deleted. If a victim reused an earlier used username, the previous user could gain access to their account. The issue was fixed in versions 19.0.13, 20.0.11, and 21.0.3. There are no known workarounds.
Mögliche Gegenmaßnahme
Nextcloud Server: None.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Nextcloud ≫ Nextcloud Server Version < 19.0.13
Nextcloud ≫ Nextcloud Server Version >= 20.0.0 < 20.0.11
Nextcloud ≫ Nextcloud Server Version >= 21.0.0 < 21.0.3
VulnDex Vulnerability Enrichment
Diese Information steht angemeldeten Benutzern zur Verfügung. Login Login
Weitere Schwachstelleninformationen
SystemNextcloud
≫
Produkt Nextcloud Server
Version >= 0.0.0, < 19.0.13
Version >= 20.0.0, < 20.0.11
Version >= 21.0.0, < 21.0.3
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.55% 0.675
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 9.8 3.9 5.9
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
nvd@nist.gov 7.5 10 6.4
AV:N/AC:L/Au:N/C:P/I:P/A:P
security-advisories@github.com 7.1 1.2 5.9
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H
CWE-287 Improper Authentication

When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.

CWE-708 Incorrect Ownership Assignment

The product assigns an owner to a resource, but the owner is outside of the intended control sphere.