CVE-2024-24770 Username timing attack on recover password/MFA token in vantage6
Attackers can enumerate valid usernames in vantage6 by observing timing differences in password and MFA recovery API responses.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2024-24770?
CVE-2024-24770 is a medium-severity vulnerability in vantage6, published on 14 Mar 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
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.
Which versions are affected by CVE-2024-24770?
3 open source packages ship an affected version, including vantage6. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
vantage6 PyPI | All versions | 4.3.0 |
vantage6 PyPI | All versions | 4.3.0 |
vantage6 PyPI | All versions | 4.3.0 |
Products include Vantage6 Vantage6.
How do I fix CVE-2024-24770?
Upgrade vantage6 to 4.3.0 or later.
Is CVE-2024-24770 being exploited?
There is no known exploitation of CVE-2024-24770 in the wild and no public exploit code.
Other vulnerabilities in vantage6
- CVE-2024-21649 Remote code execution
- CVE-2023-23929 Refresh tokens do not expire in Vantage6
- CVE-2023-47631 vantage6 Node accepts non-whitelisted algorithms from malicious server
- CVE-2024-21653 vantage6 insecure SSH configuration for node and server containers
- CVE-2023-22738 Improper Preservation of Permissions in vantage6
Sources
Also known as GHSA-5h3x-6gwf-73jm, PYSEC-2026-2005.