Auth bypass in Nextcloud Nextcloud_server
CVE-2021-32800
Nextcloud server is an open source, self hosted personal cloud. In affected versions an attacker is able to bypass Two Factor Authentication in Nextcloud. Thus knowledge of a password, or access to a WebAuthN trusted device of a user was s…
Vulnerability class: Broken Authentication
EPSS: 0.018 (76.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N.
Affected products
- Nextcloud Nextcloud_server
- Nextcloud Security-advisories — versions < 20.0.12, >= 21.0.0, < 21.0.4, >= 22.0.0, < 22.1.0
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Third Party Advisory)
- security-advisories@github.com (Patch, Third Party Advisory, x_refsource_MISC)
- security-advisories@github.com (Permissions Required, Third Party Advisory, x_refsource_MISC)
- security-advisories@github.com (vendor-advisory, Third Party Advisory, x_refsource_GENTOO)
Frequently asked questions
- What is CVE-2021-32800?
- CVE-2021-32800 is a high-severity vulnerability in Nextcloud Nextcloud_server, classified under Missing Authentication for Critical Function. CVSS score: 8.1/10. Published 2021-09-07.
- How severe is CVE-2021-32800?
- High severity. CVSS v3 base score is 8.1 out of 10.