Grafana up to 8.5.13/9.1.7 Email Address improper authentication

Summaryinfo

A vulnerability classified as critical was found in Grafana up to 8.5.13/9.1.7. This affects an unknown function of the component Email Address Handler. Such manipulation leads to improper authentication. This vulnerability is uniquely identified as CVE-2022-39229. The attack can be launched remotely. No exploit exists. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Grafana up to 8.5.13/9.1.7 and classified as critical. Affected by this issue is an unknown function of the component Email Address Handler. The manipulation with an unknown input leads to a improper authentication vulnerability. Using CWE to declare the problem leads to CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. Impacted is availability. CVE summarizes:

Grafana is an open source data visualization platform for metrics, logs, and traces. Versions prior to 9.1.8 and 8.5.14 allow one user to block another user's login attempt by registering someone else'e email address as a username. A Grafana user’s username and email address are unique fields, that means no other user can have the same username or email address as another user. A user can have an email address as a username. However, the login system allows users to log in with either username or email address. Since Grafana allows a user to log in with either their username or email address, this creates an usual behavior where `user_1` can register with one email address and `user_2` can register their username as `user_1`’s email address. This prevents `user_1` logging into the application since `user_1`'s password won’t match with `user_2`'s email address. Versions 9.1.8 and 8.5.14 contain a patch. There are no workarounds for this issue.

The weakness was disclosed 10/14/2022 as GHSA-gj7m-853r-289r. The advisory is shared for download at github.com. This vulnerability is handled as CVE-2022-39229 since 09/02/2022. There are neither technical details nor an exploit publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 211529 (Oracle Linux 9 : grafana (ELSA-2024-9115)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 9.1.8 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch 5644758f0c5ae9955a4e5480d71f9bef57fdce35 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the databases at Tenable (211529) and EUVD (EUVD-2024-1627). Once again VulDB remains the best source for vulnerability data.

Productinfo

Name

• Grafana

Version

• 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
• 8.5.9
• 8.5.10
• 8.5.11
• 8.5.12
• 8.5.13
• 9.1.0
• 9.1.1
• 9.1.2
• 9.1.3
• 9.1.4
• 9.1.5
• 9.1.6
• 9.1.7

License

• open-source

Website

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

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Once again VulDB remains the best source for vulnerability data.

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