CVE-2021-32726

HIGH7.1

Webauthn tokens not removed after user has been deleted

Published Jul 12, 2021

Modified 1 years ago

Details

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.

References

WEB

https://github.com/nextcloud/security-advisories/security/advisories/GHSA-6qr9-c846-j8mg

WEB

https://github.com/nextcloud/server/pull/27532

WEB

https://hackerone.com/reports/1202590

ADVISORY

https://security.gentoo.org/glsa/202208-17

ADVISORY

https://www.cve.org/CVERecord?id=CVE-2021-32726

CVSS Analysis