Bug 1791617
| Summary: | Failed user login throws two stderr messages on user terminal due to unreadable GPO | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 8 | Reporter: | Kaushik Banerjee <kbanerje> |
| Component: | sssd | Assignee: | Paweł Poławski <ppolawsk> |
| Status: | CLOSED ERRATA | QA Contact: | Dan Lavu <dlavu> |
| Severity: | unspecified | Docs Contact: | |
| Priority: | unspecified | ||
| Version: | 8.2 | CC: | atikhono, dlavu, grajaiya, jhrozek, lslebodn, mzidek, pbrezina, sgoveas, thalman, tscherf |
| Target Milestone: | rc | Keywords: | Triaged |
| Target Release: | 8.0 | Flags: | pm-rhel:
mirror+
|
| Hardware: | Unspecified | ||
| OS: | Unspecified | ||
| Whiteboard: | sync-to-jira qereview | ||
| Fixed In Version: | sssd-2.3.0-1.el8 | Doc Type: | If docs needed, set a value |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2020-11-04 02:04:28 UTC | Type: | Bug |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
Upstream ticket https://pagure.io/SSSD/sssd/issue/4133 * `master`
* 9188aa17d9c4dfec1d5744981ea8855465965808 - GPO: Duplicated error message for unreadable GPO
Verified against sssd-2.3.0-7.el8.x86_64
[root@ci-vm-10-0-104-249 ad_gpo_hbac]# ssh allowed_user@localhost
allowed_user@localhost's password:
Connection closed by ::1 port 22
Contains no error message output
Logs contain the error message.
(2020-08-10 19:11:46): [be[adgpo12r83.com]] [ad_gpo_missing_or_unreadable_attr] (0x0020): Group Policy Container with DN [cn={89F1BEFA-DE36-4C85-84A0-03D9EB37650C},cn=policies,cn=system,DC=adgpo12r83,DC=com] is unreadable or has unreadable or missing attributes. In order to fix this make sure that this AD object has following attributes readable: nTSecurityDescriptor, cn, gPCFileSysPath, gPCMachineExtensionNames, gPCFunctionalityVersion, flags. Alternatively if you do not have access to the server or can not change permissions on this object, you can use option ad_gpo_ignore_unreadable = True which will skip this GPO. See ad_gpo_ignore_unreadable in 'man sssd-ad' for details.
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory (sssd bug fix and enhancement update), and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://access.redhat.com/errata/RHBA-2020:4569 |
Description of problem: Failed user login does not return to prompt on login denial due to unreadable GPO Version-Release number of selected component (if applicable): sssd-ad-2.2.3-6.el8 How reproducible: Always Steps to Reproduce: 1. Setup unreadable GPO 2. Setup sssd with following config: # cat /etc/sssd/sssd.conf [sssd] domains = td5e5666.com config_file_version = 2 services = nss, pam [domain/td5e5666.com] ad_domain = td5e5666.com krb5_realm = TD5E5666.COM realmd_tags = manages-system joined-with-adcli cache_credentials = True id_provider = ad krb5_store_password_if_offline = True default_shell = /bin/bash ldap_sasl_authid = CI-VM-10-0-155-$ ldap_id_mapping = True use_fully_qualified_names = True fallback_homedir = /home/%u@%d access_provider = ad ad_gpo_access_control = enforcing ad_gpo_ignore_unreadable = false 3. Try to login using any one of the users # ssh -l kaushik.allow localhost kaushik.allow@localhost's password: Broadcast message from systemd-journald.upshift.rdu2.redhat.com (Thu 2020-01-16 03:51:24 EST): sssd[be[td5e5666.com]][20578]: Group Policy Container with DN [cn={922D526B-A7C5-4919-BE2D-9E87ED3394BC},cn=policies,cn=system,DC=td5e5666,DC=com] is unreadable or has unreadable or missing attributes. In order to fix this make sure that this AD object has following attributes readable: nTSecurityDescriptor, cn, gPCFileSysPath, gPCMachineExtensionNames, gPCFunctionalityVersion, flags. Alternatively if you do not have access to the server or can not change permissions on this object, you can use option ad_gpo_ignore_unreadable = True which will skip this GPO. See ad_gpo_ignore_unreadable in 'man sssd-ad' for details. Connection closed by ::1 port 22 [root@ci-vm-10-0-155-109 ~]# Message from syslogd@hostname1-8e4a41 at Jan 16 03:51:24 ... sssd[be[td5e5666.com]][20578]:Group Policy Container with DN [cn={922D526B-A7C5-4919-BE2D-9E87ED3394BC},cn=policies,cn=system,DC=td5e5666,DC=com] is unreadable or has unreadable or missing attributes. In order to fix this make sure that this AD object has following attributes readable: nTSecurityDescriptor, cn, gPCFileSysPath, gPCMachineExtensionNames, gPCFunctionalityVersion, flags. Alternatively if you do not have access to the server or can not change permissions on this object, you can use option ad_gpo_ignore_unreadable = True which will skip this GPO. See ad_gpo_ignore_unreadable in 'man sssd-ad' for details. Actual results: The stderr appears twice on the user terminal and the user is not returned to the prompt Expected results: 1. Sanitized output instead of showing the same stderr generated 2. The output should also be shown only once. Additional info: