CVE-2021-41244: Cross organization admin control in Grafana
First published: Mon Nov 15 2021(Updated: )
### Impact On Nov. 2, during an internal security audit, we discovered that when the fine-grained access control beta feature is enabled and there is more than one organization in the Grafana instance, Grafana 8.0 introduced a mechanism which allowed users with the Organization Admin role to list, add, remove, and update users’ roles in other organizations in which they are not an admin. ### Patches Fixed in 8.2.4 ### Workarounds All installations between v8.0 and v8.2.3 that have fine-grained access control beta enabled and more than one organization should be upgraded as soon as possible. If you cannot upgrade, you should turn off the fine-grained access control using a [feature flag](https://grafana.com/docs/grafana/latest/enterprise/access-control/#enable-fine-grained-access-control/). Grafana Cloud instances have not been affected by the vulnerability. ### Reporting security issues If you think you have found a security vulnerability, please send a report to security@grafana.com. This address can be used for all of Grafana Labs' open source and commercial products (including, but not limited to Grafana, Grafana Cloud, Grafana Enterprise, and grafana.com). We can accept only vulnerability reports at this address. We would prefer that you encrypt your message to us by using our PGP key. The key fingerprint is F988 7BEA 027A 049F AE8E 5CAA D125 8932 BE24 C5CA The key is available from keyserver.ubuntu.com. ### Security announcements We maintain a [security category on our blog](https://grafana.com/tags/security/), where we will always post a summary, remediation, and mitigation details for any patch containing security fixes. You can also subscribe to our [RSS feed](https://grafana.com/tags/security/index.xml).
Credit: security-advisories@github.com security-advisories@github.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Grafana Grafana | >=8.0.0<8.2.4 | |
| go/github.com/grafana/grafana | >=8.0.0<8.2.4 | 8.2.4 |
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Reference Links
- http://www.openwall.com/lists/oss-security/2021/11/15/1
- https://github.com/grafana/grafana/security/advisories/GHSA-mpwp-42x6-4wmx
- https://grafana.com/blog/2021/11/15/grafana-8.2.4-released-with-security-fixes/
- https://security.netapp.com/advisory/ntap-20211223-0001/
- https://nvd.nist.gov/vuln/detail/CVE-2021-41244
- https://grafana.com/blog/2021/11/15/grafana-8.2.4-released-with-security-fixes
- https://security.netapp.com/advisory/ntap-20211223-0001
- https://github.com/advisories/GHSA-mpwp-42x6-4wmx (Advisory)
Frequently Asked Questions
What is CVE-2021-41244?
CVE-2021-41244 is a vulnerability in Grafana that allows admins with enabled fine-grained access control beta feature to access users from other organizations.
What is the severity of CVE-2021-41244?
The severity of CVE-2021-41244 is critical with a CVSS score of 7.2.
How can I fix CVE-2021-41244?
To fix CVE-2021-41244, upgrade your Grafana instance to version 8.2.4 or later.
Where can I find more information about CVE-2021-41244?
You can find more information about CVE-2021-41244 on the following references: - [Openwall mailing list](http://www.openwall.com/lists/oss-security/2021/11/15/1) - [Grafana security advisories](https://github.com/grafana/grafana/security/advisories/GHSA-mpwp-42x6-4wmx) - [Grafana blog post](https://grafana.com/blog/2021/11/15/grafana-8.2.4-released-with-security-fixes/)
What are the Common Weakness Enumerations (CWEs) associated with CVE-2021-41244?
The Common Weakness Enumerations (CWEs) associated with CVE-2021-41244 are CWE-863 (Incorrect Authorization) and CWE-610 (Sensitive Data Exposure).
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