CVE-2021-41177
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
Summary
Nextcloud is an open-source, self-hosted productivity platform. Prior to versions 20.0.13, 21.0.5, and 22.2.0, Nextcloud Server did not implement a database backend for rate-limiting purposes. Any component of Nextcloud using rate-limits (as as AnonRateThrottle or UserRateThrottle) was thus not rate limited on instances not having a memory cache backend configured. In the case of a default installation, this would notably include the rate-limits on the two factor codes. It is recommended that the Nextcloud Server be upgraded to 20.0.13, 21.0.5, or 22.2.0. As a workaround, enable a memory cache backend in config.php.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| nextcloud | security-advisories | < 20.0.13 | affected |
| nextcloud | security-advisories | >= 21.0.0, < 21.0.5 | affected |
| nextcloud | security-advisories | < 22.2.0 | affected |
Weaknesses
- CWE-799: CWE-799: Improper Control of Interaction Frequency
ADP Enrichment
CVE Program Container
Additional References
- https://github.com/nextcloud/security-advisories/security/advisories/GHSA-fj39-4qx4-m3f2
- https://github.com/nextcloud/server/pull/28728
- https://hackerone.com/reports/1265709
- https://security.gentoo.org/glsa/202208-17
References
- https://github.com/nextcloud/security-advisories/security/advisories/GHSA-fj39-4qx4-m3f2
- https://github.com/nextcloud/server/pull/28728
- https://hackerone.com/reports/1265709
- https://security.gentoo.org/glsa/202208-17
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