** Changed in: unity
Status: Fix Committed => Fix Released
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https://bugs.launchpad.net/bugs/1413790
Title:
It's possible to bypasss lockscreen if user is in nopasswdlogin group.
Status in Unity:
Fix Released
Status in unity package in Ubuntu:
Fix Released
Bug description:
Lightdm should not emit logind "unlock" signal when the user is not
prompted for a password. This can lead to a security issue:
# Log-in (unity session).
# Add the current user to nopasswdlogin group.
# Lock the sessions.
# Session indicator->Switch account...
# "Login" in again.
Expected behavior:
The lockscreen is still active.
Current behavior:
The session in unlocked.
We could workaround the issue directly in unity, but IMHO would be
cleaner to avoid that lightdm is emitting the logind signal.
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