Bug 467569 - gnome-screensaver allows bypass of password entry if autologin is enabled
gnome-screensaver allows bypass of password entry if autologin is enabled
Product: Fedora
Classification: Fedora
Component: gnome-screensaver (Show other bugs)
All Linux
medium Severity medium
: ---
: ---
Assigned To: jmccann
Fedora Extras Quality Assurance
Depends On:
  Show dependency treegraph
Reported: 2008-10-18 14:44 EDT by John McBride
Modified: 2015-01-14 18:21 EST (History)
3 users (show)

See Also:
Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of:
Last Closed: 2009-07-14 10:15:37 EDT
Type: ---
Regression: ---
Mount Type: ---
Documentation: ---
Verified Versions:
Category: ---
oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---

Attachments (Terms of Use)

  None (edit)
Description John McBride 2008-10-18 14:44:32 EDT
Description of problem:
If F9 has a autologin user enabled, and the user locks the screen, gnome-screensaver allows bypass of authentication via the "Switch User" button.

Version-Release number of selected component (if applicable):

How reproducible:
Configure the /etc/gdm/custom.conf for autologin. Here is a sample entry :


Steps to Reproduce:
1. Restart X ; user is automatically logged in.
2. Use the menu "System->Lockscreen". The screen appears locked.
3. Wiggle the mouse to see the authentication dialog.
4. Click "Switch User". First time : the Desktop appears with no password entry.
5. Repeat steps 2,3. Click "Switch User". Second (or more) times : A user selection dialog appears.
6. Select the "Automatic Login" user. The Desktop appears with no password entry.
Actual results:
Entry to the desktop from the locked screensaver is performed with no password required.

Expected results:
Entry to desktop is password protected.

Additional info:
gconf-editor apparently has keys to disable user switching, but they currently have no effect in F9.


Some other distros (Ubuntu) had this problem and it has been fixed :

Comment 1 John McBride 2008-10-18 14:56:47 EDT
Renaming /usr/bin/gdmflexiserver (as suggested in the ubuntu bug report) appears to disable the user switching.
Comment 2 Bug Zapper 2009-06-09 23:00:56 EDT
This message is a reminder that Fedora 9 is nearing its end of life.
Approximately 30 (thirty) days from now Fedora will stop maintaining
and issuing updates for Fedora 9.  It is Fedora's policy to close all
bug reports from releases that are no longer maintained.  At that time
this bug will be closed as WONTFIX if it remains open with a Fedora 
'version' of '9'.

Package Maintainer: If you wish for this bug to remain open because you
plan to fix it in a currently maintained version, simply change the 'version' 
to a later Fedora version prior to Fedora 9's end of life.

Bug Reporter: Thank you for reporting this issue and we are sorry that 
we may not be able to fix it before Fedora 9 is end of life.  If you 
would still like to see this bug fixed and are able to reproduce it 
against a later version of Fedora please change the 'version' of this 
bug to the applicable version.  If you are unable to change the version, 
please add a comment here and someone will do it for you.

Although we aim to fix as many bugs as possible during every release's 
lifetime, sometimes those efforts are overtaken by events.  Often a 
more recent Fedora release includes newer upstream software that fixes 
bugs or makes them obsolete.

The process we are following is described here: 
Comment 3 Bug Zapper 2009-07-14 10:15:37 EDT
Fedora 9 changed to end-of-life (EOL) status on 2009-07-10. Fedora 9 is 
no longer maintained, which means that it will not receive any further 
security or bug fix updates. As a result we are closing this bug.

If you can reproduce this bug against a currently maintained version of 
Fedora please feel free to reopen this bug against that version.

Thank you for reporting this bug and we are sorry it could not be fixed.

Note You need to log in before you can comment on or make changes to this bug.