CVE-2021-37630 - Authorization Bypass Through User-Controlled Key

Severity

65%

Complexity

27%

Confidentiality

60%

Nextcloud Circles is an open source social network built for the nextcloud ecosystem. In affected versions the Nextcloud Circles application allowed any user to join any "Secret Circle" without approval by the Circle owner leaking private information. It is recommended that Nextcloud Circles is upgraded to 0.19.15, 0.20.11 or 0.21.4. There are no workarounds for this issue.

CVSS 3.1 Base Score 6.5. CVSS Attack Vector: network. CVSS Attack Complexity: low. CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N).

CVSS 2.0 Base Score 4. CVSS Attack Vector: network. CVSS Attack Complexity: low. CVSS Vector: (AV:N/AC:L/Au:S/C:P/I:N/A:N).

Overview

First reported 3 years ago

2021-09-07 20:15:00

Last updated 3 years ago

2021-09-14 16:29:00

Affected Software

Nextcloud Circles

References

https://github.com/nextcloud/security-advisories/security/advisories/GHSA-56j9-3rj4-wvgm

Third Party Advisory

https://github.com/nextcloud/circles/pull/768

Patch, Third Party Advisory

https://hackerone.com/reports/1257624

Permissions Required, Third Party Advisory

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