** Also affects: adsys (Ubuntu Focal)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1973752
Title:
Fix privilege permission which can not be set to disabled
Status in adsys package in Ubuntu:
Fix Released
Status in adsys source package in Focal:
New
Status in adsys source package in Jammy:
Fix Committed
Bug description:
[Impact]
Disallowing local administrator does not work as excepted:
- on some AD server, setting in the UI this key (and some other similars) to
disabled, go to next GPO rule, then back to this one, AD will display the key
as enabled.
- on the client machine, we can see that the key has no state and nothing is
forcibly allowed or disallowed.
[Test case]
* Install the new admx/adml with this version on the AD server.
* On AD, go to disallow local administator, set it to disabled
* Go to next GPO rules and then go back
* The rule should still be disabled.
* On an Ubuntu machine connected with AD by adsys, with ua attached, force a
machine refresh with adsysctl policy update -m.
* Check in adsysctl policy applied --all that the key is displayed as disabled
* Confirm that no local administrator (part of the sudo group) can run "sudo".
[Where problems could occur]
The privilege manager and other policies impacts both Windows and client:
- on Windows, this is in the admx/adml are statically generated and then
shipped as thus. There is no runtime exercising this. The consequence of those
generated files to be invalid is that Windows AD server will not show up
"Ubuntu" in its GPO template.
- on the client, the privilege manager is the main consumer of those disabled
key types. The other kinds of keys are not impacted.
[Additional informations]
* New test cases have been added for the client part.
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