Hello Gabriel, or anyone else affected, Accepted adsys into focal-proposed. The package will build now and be available at https://launchpad.net/ubuntu/+source/adsys/0.9.2~20.04 in a few hours, and then in the -proposed repository.
Please help us by testing this new package. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how to enable and use -proposed. Your feedback will aid us getting this update out to other Ubuntu users. If this package fixes the bug for you, please add a comment to this bug, mentioning the version of the package you tested, what testing has been performed on the package and change the tag from verification-needed- focal to verification-done-focal. If it does not fix the bug for you, please add a comment stating that, and change the tag to verification- failed-focal. In either case, without details of your testing we will not be able to proceed. Further information regarding the verification process can be found at https://wiki.ubuntu.com/QATeam/PerformingSRUVerification . Thank you in advance for helping! N.B. The updated package will be released to -updates after the bug(s) fixed by this package have been verified and the package has been in -proposed for a minimum of 7 days. ** Changed in: adsys (Ubuntu Focal) Status: New => Fix Committed ** Tags added: verification-needed-focal -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to adsys in Ubuntu. https://bugs.launchpad.net/bugs/1982347 Title: Username is case sensitive when applying policies on login Status in adsys package in Ubuntu: Fix Released Status in adsys source package in Focal: Fix Committed Status in adsys source package in Jammy: Fix Committed Bug description: [Impact] When logging in (either via login or ssh) to an AD account using different case combinations, adsysd uses the specified account name instead of the lowercase one reported by getent/whoami to apply the GPOs. I believe this comes from the pam_get_item call here: https://github.com/ubuntu/adsys/blob/e3316e5e37970a07f09fa6df553ddac096c91255/pam/pam_adsys.c#L266 This works but has the unintended side effect of producing multiple dconf profile files for each variant of the username, and caching policies as well: root@ubuntu2204:~# ls /etc/dconf/profile/ | grep -i administrator [email protected] [email protected] [email protected] root@ubuntu2204:~# ls /var/cache/adsys/policies/ | grep -i administrator [email protected] [email protected] [email protected] Of course this all stems from the username retrieved by PAM so there might be more unintended side-effects, the dconf one being the easiest to observe. To ensure an unified experience, when a target name is normalized from e.g. DOMAIN\User to User@DOMAIN, it will also be lowercased. [Test Plan] Reproduction: * With adsys set up, log in on the Ubuntu client using an AD account, alternating cases * Observe multiple files created at /var/cache/adsys/policies With the fix applied, remove *all* cached policies at /var/cache/adsys/policies and attempt to login with different case combinations of the AD account, e.g.: [email protected] [email protected] [email protected] [email protected] As root, check the contents of /var/cache/adsys/policies - you should only see a lowercase entry: [email protected] [Where problems could occur] Target name normalization is exercised by the code that dumps policies applied for a given user, and by the code that updates or creates a policy for a given user. If this happens to cause a bug, it will render the core part of adsys unusable. We believe this is highly unlikely given that in some cases, adsys already used the lowercase variant of the username to apply and display policies. [Other Info] This issue was initially reported on GitHub at https://github.com/ubuntu/adsys/issues/378 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/adsys/+bug/1982347/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
