vantage6 up to 3.x authorization

Summaryinfo

A vulnerability classified as critical was found in vantage6 up to 3.x. Affected by this issue is some unknown functionality. Executing a manipulation can lead to authorization. This vulnerability is registered as CVE-2023-28635. It is possible to launch the attack remotely. No exploit is available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in vantage6 up to 3.x. It has been declared as critical. This vulnerability affects an unknown function. 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. CVE summarizes:

vantage6 is privacy preserving federated learning infrastructure. Prior to version 4.0.0, malicious users may try to get access to resources they are not allowed to see, by creating resources with integers as names. One example where this is a risk, is when users define which users are allowed to run algorithms on their node. This may be defined by username or user id. Now, for example, if user id 13 is allowed to run tasks, and an attacker creates a username with username '13', they would be wrongly allowed to run an algorithm. There may also be other places in the code where such a mixup of resource ID or name leads to issues. Version 4.0.0 contains a patch for this issue. The best solution is to check when resources are created or modified, that the resource name always starts with a character.

The weakness was published 10/12/2023 as GHSA-7x94-6g2m-3hp2. The advisory is available at github.com. This vulnerability was named CVE-2023-28635 since 03/20/2023. The technical details are unknown and an exploit is not available.

Upgrading to version 4.0.0 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying a patch 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

• vantage6

Version

• 3.x

Website

• Product: https://github.com/vantage6/vantage6/

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