CVE-2021-41239
5.3
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Summary
Nextcloud server is a self hosted system designed to provide cloud style services. In affected versions the User Status API did not consider the user enumeration settings by the administrator. This allowed a user to enumerate other users on the instance, even when user listings where disabled. It is recommended that the Nextcloud Server is upgraded to 20.0.14, 21.0.6 or 22.2.1. There are no known workarounds.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| nextcloud | security-advisories | < 20.0.14 | affected |
| nextcloud | security-advisories | >= 21.0.0, < 21.0.6 | affected |
| nextcloud | security-advisories | >= 22.2.0, < 22.2.1 | affected |
Weaknesses
- CWE-200: CWE-200: Exposure of Sensitive Information to an Unauthorized Actor
ADP Enrichment
CVE Program Container
Additional References
- https://github.com/nextcloud/security-advisories/security/advisories/GHSA-g722-cm3h-8wrx
- https://github.com/nextcloud/server/issues/27122
- https://github.com/nextcloud/server/pull/29260
- https://security.gentoo.org/glsa/202208-17
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: yes
- Technical Impact: partial
References
- https://github.com/nextcloud/security-advisories/security/advisories/GHSA-g722-cm3h-8wrx
- https://github.com/nextcloud/server/issues/27122
- https://github.com/nextcloud/server/pull/29260
- https://security.gentoo.org/glsa/202208-17
Feedback
Was this page helpful?
Glad to hear it! Please tell us how we can improve.
Sorry to hear that. Please tell us how we can improve.