CVE-2021-37630
Nextcloud Circles Unauthorized Circle Joining Vulnerability
Description
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.
INFO
Published Date :
Sept. 7, 2021, 8:15 p.m.
Last Modified :
Nov. 21, 2024, 6:15 a.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
3.6
Exploitability Score :
2.8
Affected Products
The following products are affected by CVE-2021-37630
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2021-37630.
| URL | Resource |
|---|---|
| https://github.com/nextcloud/circles/pull/768 | Patch Third Party Advisory |
| https://github.com/nextcloud/security-advisories/security/advisories/GHSA-56j9-3rj4-wvgm | Third Party Advisory |
| https://hackerone.com/reports/1257624 | Permissions Required Third Party Advisory |
| https://github.com/nextcloud/circles/pull/768 | Patch Third Party Advisory |
| https://github.com/nextcloud/security-advisories/security/advisories/GHSA-56j9-3rj4-wvgm | Third Party Advisory |
| https://hackerone.com/reports/1257624 | Permissions Required Third Party Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-37630 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-37630 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference https://github.com/nextcloud/circles/pull/768 Added Reference https://github.com/nextcloud/security-advisories/security/advisories/GHSA-56j9-3rj4-wvgm Added Reference https://hackerone.com/reports/1257624 -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Initial Analysis by [email protected]
Sep. 14, 2021
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:L/Au:S/C:P/I:N/A:N) Added CVSS V3.1 NIST AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N Changed Reference Type https://github.com/nextcloud/circles/pull/768 No Types Assigned https://github.com/nextcloud/circles/pull/768 Patch, Third Party Advisory Changed Reference Type https://github.com/nextcloud/security-advisories/security/advisories/GHSA-56j9-3rj4-wvgm No Types Assigned https://github.com/nextcloud/security-advisories/security/advisories/GHSA-56j9-3rj4-wvgm Third Party Advisory Changed Reference Type https://hackerone.com/reports/1257624 No Types Assigned https://hackerone.com/reports/1257624 Permissions Required, Third Party Advisory Added CWE NIST CWE-639 Added CPE Configuration OR *cpe:2.3:a:nextcloud:circles:*:*:*:*:*:*:*:* versions up to (excluding) 0.19.5 *cpe:2.3:a:nextcloud:circles:*:*:*:*:*:*:*:* versions from (including) 0.20.0 up to (excluding) 0.20.11 *cpe:2.3:a:nextcloud:circles:*:*:*:*:*:*:*:* versions from (including) 0.21.0 up to (excluding) 0.21.4
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-37630 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2021-37630
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.10 }} 0.00%
score
0.39792
percentile