** Changed in: lightdm (Ubuntu Precise)
     Assignee: Robert Ancell (robert-ancell) => (unassigned)

-- 
You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to lightdm in Ubuntu.
https://bugs.launchpad.net/bugs/1517685

Title:
  XDMCP server starts without authentication if configured key does not
  exist

Status in Light Display Manager:
  Fix Released
Status in Light Display Manager 1.10 series:
  Fix Released
Status in Light Display Manager 1.14 series:
  Fix Released
Status in Light Display Manager 1.16 series:
  Fix Released
Status in Light Display Manager 1.2 series:
  Fix Released
Status in lightdm package in Ubuntu:
  Fix Released
Status in lightdm source package in Precise:
  Confirmed
Status in lightdm source package in Trusty:
  Fix Released
Status in lightdm source package in Vivid:
  Fix Released
Status in lightdm source package in Wily:
  Fix Released

Bug description:
  [Impact]
  An incorrectly configured XDMCP server will start without authentication 
instead of disabling XDMCP / stopping LightDM.

  [Test Case]
  1. Set up LightDM to run an XDMCP server using an XDM authentication key, 
i.e. in lightdm.conf:
  [XDMCPServer]
  enabled=true
  key=key-name
  2. Do not create /etc/lightdm/keys.conf or do not define 'key-name' in 
keys.conf.
  3. Start LightDM
  4. Connect XDMCP client.

  Expected result:
  Either LightDM doesn't start or the XDMCP server doesn't start.

  Observed result:
  XDMCP server starts without authentication, any XDMCP client is able to 
connect. Debug message printed to log warning about missing key, but not easy 
to spot.

  [Regression Potential]
  Low - change is to not start LightDM if this case occurs. This could affect 
someone who currently has a misconfigured LightDM. In this case a warning 
message is printed to the log.

To manage notifications about this bug go to:
https://bugs.launchpad.net/lightdm/+bug/1517685/+subscriptions

-- 
Mailing list: https://launchpad.net/~touch-packages
Post to     : touch-packages@lists.launchpad.net
Unsubscribe : https://launchpad.net/~touch-packages
More help   : https://help.launchpad.net/ListHelp

Reply via email to