Grafana up to 8.3.9/8.4.9/8.5.8/9.0.2 authorization

Summaryinfo

A vulnerability has been found in Grafana up to 8.3.9/8.4.9/8.5.8/9.0.2 and classified as critical. Affected is an unknown function. This manipulation causes authorization. This vulnerability appears as CVE-2022-31107. The attack may be initiated remotely. There is no available exploit. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in Grafana up to 8.3.9/8.4.9/8.5.8/9.0.2. It has been declared as critical. Affected by this vulnerability is an unknown part. The manipulation with an unknown input leads to a authorization vulnerability. The CWE definition for the vulnerability is CWE-863. The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check. This allows attackers to bypass intended access restrictions. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Grafana is an open-source platform for monitoring and observability. In versions 5.3 until 9.0.3, 8.5.9, 8.4.10, and 8.3.10, it is possible for a malicious user who has authorization to log into a Grafana instance via a configured OAuth IdP which provides a login name to take over the account of another user in that Grafana instance. This can occur when the malicious user is authorized to log in to Grafana via OAuth, the malicious user's external user id is not already associated with an account in Grafana, the malicious user's email address is not already associated with an account in Grafana, and the malicious user knows the Grafana username of the target user. If these conditions are met, the malicious user can set their username in the OAuth provider to that of the target user, then go through the OAuth flow to log in to Grafana. Due to the way that external and internal user accounts are linked together during login, if the conditions above are all met then the malicious user will be able to log in to the target user's Grafana account. Versions 9.0.3, 8.5.9, 8.4.10, and 8.3.10 contain a patch for this issue. As a workaround, concerned users can disable OAuth login to their Grafana instance, or ensure that all users authorized to log in via OAuth have a corresponding user account in Grafana linked to their email address.

The weakness was presented 07/16/2022 as GHSA-mx47-6497-3fv2. It is possible to read the advisory at github.com. This vulnerability is known as CVE-2022-31107 since 05/18/2022. The technical details are unknown and an exploit is not publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 211248 (Fedora 37 : grafana (2022-047d3845db)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 8.3.10, 8.4.10, 8.5.9 or 9.0.3 eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (211248) and EUVD (EUVD-2024-1698). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Name

• Grafana

Version

• 8.3.0
• 8.3.1
• 8.3.2
• 8.3.3
• 8.3.4
• 8.3.5
• 8.3.6
• 8.3.7
• 8.3.8
• 8.3.9
• 8.4.0
• 8.4.1
• 8.4.2
• 8.4.3
• 8.4.4
• 8.4.5
• 8.4.6
• 8.4.7
• 8.4.8
• 8.4.9
• 8.5.0
• 8.5.1
• 8.5.2
• 8.5.3
• 8.5.4
• 8.5.5
• 8.5.6
• 8.5.7
• 8.5.8
• 9.0.0
• 9.0.1
• 9.0.2

License

• open-source

Website

• Product: https://github.com/grafana/grafana/

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Be aware that VulDB is the high quality source for vulnerability data.

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