CVE-2024-21653 vantage6 insecure SSH configuration for node and server containers

What is CVE-2024-21653?

CVE-2024-21653 is a medium-severity vulnerability in vantage6, published on 30 Jan 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The vantage6 technology enables to manage and deploy privacy enhancing technologies like Federated Learning (FL) and Multi-Party Computation (MPC). Nodes and servers get a ssh config by default that permits root login with password authentication. In a proper deployment, the SSH service is not exposed so there is no risk, but not all deployments are ideal. The default should therefore be less permissive. The vulnerability can be mitigated by removing the ssh part from the docker file and rebuilding the docker image. Version 4.2.0 patches the vulnerability.

Weakness: CWE-284

Which versions are affected by CVE-2024-21653?

5 open source packages ship an affected version, including vantage6, vantage6-node and vantage6-server. It affects 1 product.

Products include Vantage6 Vantage6.

How do I fix CVE-2024-21653?

Upgrade vantage6 to 4.2.0 or later.

Is CVE-2024-21653 being exploited?

There is no known exploitation of CVE-2024-21653 in the wild and no public exploit code.

Other vulnerabilities in vantage6

• CVE-2024-21649 Remote code execution High 8.8
• CVE-2023-23929 Refresh tokens do not expire in Vantage6 High 8.8
• CVE-2023-47631 vantage6 Node accepts non-whitelisted algorithms from malicious server High 7.2
• CVE-2023-22738 Improper Preservation of Permissions in vantage6 Medium 6.3
• CVE-2023-23930 vantage6's Pickle serialization is insecure Medium 5.5

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-2wgc-48g2-cj5w, PYSEC-2024-33, PYSEC-2024-34, PYSEC-2026-2003.