Incorrect Privilege Assignment Affecting github.com/ubuntu/authd/internal/users/tempentries package, versions <0.5.4
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Start learning- Snyk IDSNYK-GOLANG-GITHUBCOMUBUNTUAUTHDINTERNALUSERSTEMPENTRIES-10500057
- published25 Jun 2025
- disclosed16 Jun 2025
- creditUnknown
Introduced: 16 Jun 2025
NewCVE-2025-5689 Â (opens in a new tab)How to fix?
Upgrade github.com/ubuntu/authd/internal/users/tempentries to version 0.5.4 or higher.
Overview
Affected versions of this package are vulnerable to Incorrect Privilege Assignment when a new user logs in via SSH and does not exist in the user database, the session assigns the user to the root group. An attacker can gain elevated privileges by authenticating as a new user through SSH.
Workaround
This vulnerability can be mitigated by configuring the SSH server to disallow authentication via the affected process, such as by setting UsePAM no or KbdInteractiveAuthentication no in the SSH configuration.