Mastodon up to 3.5.17/4.0.13/4.1.13/4.2.5 OAuth Application operation after expiration

Summaryinfo

A vulnerability described as problematic has been identified in Mastodon up to 3.5.17/4.0.13/4.1.13/4.2.5. Affected by this vulnerability is an unknown functionality of the component OAuth Application. The manipulation results in operation after expiration. This vulnerability is reported as CVE-2024-25619. The attack can be launched remotely. No exploit exists. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Mastodon up to 3.5.17/4.0.13/4.1.13/4.2.5. Affected is an unknown code block of the component OAuth Application. The manipulation with an unknown input leads to a operation after expiration vulnerability. CWE is classifying the issue as CWE-672. The product uses, accesses, or otherwise operates on a resource after that resource has been expired, released, or revoked. This is going to have an impact on confidentiality. CVE summarizes:

Mastodon is a free, open-source social network server based on ActivityPub. When an OAuth Application is destroyed, the streaming server wasn't being informed that the Access Tokens had also been destroyed, this could have posed security risks to users by allowing an application to continue listening to streaming after the application had been destroyed. Essentially this comes down to the fact that when Doorkeeper sets up the relationship between Applications and Access Tokens, it uses a `dependent: delete_all` configuration, which means the `after_commit` callback setup on `AccessTokenExtension` didn't actually fire, since `delete_all` doesn't trigger ActiveRecord callbacks. To mitigate, we need to add a `before_destroy` callback to `ApplicationExtension` which announces to streaming that all the Application's Access Tokens are being "killed". Impact should be negligible given the affected application had to be owned by the user. None the less this issue has been addressed in versions 4.2.6, 4.1.14, 4.0.14, and 3.5.18. Users are advised to upgrade. There are no known workaround for this vulnerability.

The weakness was disclosed 02/15/2024 as GHSA-7w3c-p9j8-mq3x. The advisory is available at github.com. This vulnerability is traded as CVE-2024-25619 since 02/08/2024. The technical details are unknown and an exploit is not available.

Upgrading eliminates this vulnerability. Applying the patch 68eaa804c9bafdc5f798e114e9ba00161425dd71 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.

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Productinfo

Name

• Mastodon

Version

• 3.5.0
• 3.5.1
• 3.5.2
• 3.5.3
• 3.5.4
• 3.5.5
• 3.5.6
• 3.5.7
• 3.5.8
• 3.5.9
• 3.5.10
• 3.5.11
• 3.5.12
• 3.5.13
• 3.5.14
• 3.5.15
• 3.5.16
• 3.5.17
• 4.0.0
• 4.0.1
• 4.0.2
• 4.0.3
• 4.0.4
• 4.0.5
• 4.0.6
• 4.0.7
• 4.0.8
• 4.0.9
• 4.0.10
• 4.0.11
• 4.0.12
• 4.0.13
• 4.1.0
• 4.1.1
• 4.1.2
• 4.1.3
• 4.1.4
• 4.1.5
• 4.1.6
• 4.1.7
• 4.1.8
• 4.1.9
• 4.1.10
• 4.1.11
• 4.1.12
• 4.1.13
• 4.2.0
• 4.2.1
• 4.2.2
• 4.2.3
• 4.2.4
• 4.2.5

License

• open-source

Website

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

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