vantage6 up to 4.2.1 API Route /recover/lost timing discrepancy

Summaryinfo

A vulnerability identified as problematic has been detected in vantage6 up to 4.2.1. This vulnerability affects unknown code of the file /recover/lost of the component API Route Handler. The manipulation leads to timing discrepancy. This vulnerability is listed as CVE-2024-24770. The attack may be initiated remotely. There is no available exploit. You should upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in vantage6 up to 4.2.1. This issue affects some unknown functionality of the file /recover/lost of the component API Route Handler. The manipulation with an unknown input leads to a timing discrepancy vulnerability. Using CWE to declare the problem leads to CWE-208. Two separate operations in a product require different amounts of time to complete, in a way that is observable to an actor and reveals security-relevant information about the state of the product, such as whether a particular operation was successful or not. Impacted is confidentiality. The summary by CVE is:

vantage6 is an open source framework built to enable, manage and deploy privacy enhancing technologies like Federated Learning and Multi-Party Computation. Much like GHSA-45gq-q4xh-cp53, it is possible to find which usernames exist in vantage6 by calling the API routes `/recover/lost` and `/2fa/lost`. These routes send emails to users if they have lost their password or MFA token. This issue has been addressed in commit `aecfd6d0e` and is expected to ship in subsequent releases. Users are advised to upgrade as soon as a new release is available. There are no known workarounds for this vulnerability.

The advisory is shared at github.com. The identification of this vulnerability is CVE-2024-24770 since 01/29/2024. The exploitation is known to be difficult. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1592 for this issue.

Upgrading to version 4.2.2 eliminates this vulnerability. Applying the patch aecfd6d0e83165a41a60ebd52d2287b0217be26b 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

• 4.2.0
• 4.2.1

License

• open-source

Website

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

CPE 2.3info

• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍

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