#VU77620 Information disclosure in Grafana - CVE-2023-1387

Vulnerability identifier: #VU77620

Vulnerability risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2023-1387

CWE-ID: CWE-200

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Grafana
Web applications / Other software

Vendor: Grafana Labs

Description

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to application allows users to login with a JWT token passed in the URL query parameter auth_token. A remote attacker can intercept the query and gain unauthorized access to the application.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Grafana: 9.1.0, 9.1.1, 9.1.2, 9.1.3, 9.1.4, 9.1.5, 9.1.6, 9.1.7, 9.1.8, 9.2.0, 9.2.1, 9.2.2, 9.2.3, 9.2.4, 9.2.5, 9.2.6, 9.2.7, 9.2.8, 9.2.10, 9.2.13, 9.2.15, 9.3.0, 9.3.1, 9.3.2, 9.3.4, 9.3.6, 9.3.8, 9.3.11, 9.4.0, 9.4.1, 9.4.2, 9.4.3, 9.4.7

---

External links
https://grafana.com/security/security-advisories/cve-2023-1387/
https://github.com/grafana/bugbounty/security/advisories/GHSA-5585-m9r5-p86j

---

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

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