Red Hat Bugzilla – Bug 1013721
GNOME 3.10 lock screen does not require password to unlock
Last modified: 2013-11-10 02:15:19 EST
Description of problem:
Locking the screen does not prevent users from unlocking it.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. Lock the screen either by selecting the lock icon in the system menu or with ctrl-alt-l
2. Move the mouse and drag the "window-blind" up. (Or hit escape)
The session is immediately unlocked.
The user must be presented with a password dialog.
This is a clear security issue.
I'm assuming this is new in 3.10 as part of the "improved login and lock screens" changes?
I presume that to be the case, as it was working fine before I upgraded to F20 Alpha from F19 (running GNOME 3.8.x)
This is likely to be the same issue reported upstream at https://bugzilla.gnome.org/show_bug.cgi?id=708997
Unfortunately, the upstream bug is public so this security issue is therefor already disclosed.
Given the upstream bug is public, I'm going to open this one up as well. Can you find out from upstream if they require a CVE to be assigned or if they've gotten in touch with MITRE regarding that already?
*** Bug 1012983 has been marked as a duplicate of this bug. ***
Proposed as a Freeze Exception for 20-final by Fedora user sgallagh using the blocker tracking app because:
There is a significant reduction in the physical security of a GNOME desktop environment if the screen-lock does not challenge for credentials before restoring access to the desktop session.
Such an obvious security flaw in the final release would reflect very poorly on the project.
+1 FE, but it's odd that I haven't seen this myself - I use sssd against FreeIPA on both my systems and screen locking seems to be working fine.
accountsservice-0.6.35-1.fc20 has been submitted as an update for Fedora 20.
* should fix your issue,
* was pushed to the Fedora 20 testing repository,
* should be available at your local mirror within two days.
Update it with:
# su -c 'yum update --enablerepo=updates-testing accountsservice-0.6.35-1.fc20'
as soon as you are able to.
Please go to the following url:
then log in and leave karma (feedback).
accountsservice-0.6.35-1.fc20 has been pushed to the Fedora 20 stable repository. If problems still persist, please make note of it in this bug report.