Headline
CVE-2022-39228: Observable Response Discrepancy in vantage6
vantage6 is a privacy preserving federated learning infrastructure for secure insight exchange. vantage6 does not inform the user of wrong username/password combination if the username actually exists. This is an attempt to prevent bots from obtaining usernames. However, if a wrong password is entered a number of times, the user account is blocked temporarily. This issue has been fixed in version 3.8.0.
Impact
We are incorporating the password policies listed in #59. One measure is that we don’t let the user know in case of wrong username/password combination if the username actually exists, to prevent that bots can guess usernames. However, if a wrong password is entered a number of times, the user account is blocked temporarily. This way you could still find out which usernames exist.
Patches
Update to 3.8.0+
Workarounds
No
References
#59
For more information
If you have any questions or comments about this advisory:
- Email us at vantage6@iknl.nl
Related news
### Impact We are incorporating the password policies listed in https://github.com/vantage6/vantage6/issues/59. One measure is that we don't let the user know in case of wrong username/password combination if the username actually exists, to prevent that bots can guess usernames. However, if a wrong password is entered a number of times, the user account is blocked temporarily. This way you could still find out which usernames exist. ### Patches Update to 3.8.0+ ### Workarounds No ### References https://github.com/vantage6/vantage6/issues/59 ### For more information If you have any questions or comments about this advisory: * Email us at [vantage6@iknl.nl](mailto:vantage6@iknl.nl)