#VU51580 Improper access control in Grafana - CVE-2021-28146

Vulnerability identifier: #VU51580

Vulnerability risk: Medium

CVSSv4.0: 1.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2021-28146

CWE-ID: CWE-284

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Grafana
Web applications / Other software

Vendor: Grafana Labs

Description

The vulnerability allows a remote user to gain unauthorized access to otherwise restricted functionality.

The vulnerability exists due to improper access restrictions. A remote user can bypass implemented security restrictions and add external groups to existing teams.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Grafana: 7.4.0 - 7.4.3

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External links
http://grafana.com/blog/2021/03/18/grafana-6.7.6-7.3.10-and-7.4.5-released-with-important-security-fixes-for-grafana-enterprise/

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.