Bug 1205751

Summary: realmd: unauthenticated Active Directory join
Product: [Other] Security Response Reporter: Vasyl Kaigorodov <vkaigoro>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED ERRATA QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: carnil, ebenes, jhrozek, pkis, stefw
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
It was found that the realm client would try to automatically join an active directory domain without authentication, which could potentially lead to privilege escalation within a specified domain.
 Story Points: ---
Clone Of: Environment:
Last Closed: 2015-11-20 05:59:41 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On: 1205753, 1205754, 1233011    
Bug Blocks: 1205773    
Attachments:
Description Flags
Disable Automatic AD Jains none

Description Vasyl Kaigorodov 2015-03-25 14:59:22 UTC 
Upstream reported that realmd joins any AD without performing authentication, which can lead to privileges escalation within specified domain:
https://bugs.freedesktop.org/show_bug.cgi?id=89205

Suggested patches are available in the upstream bug above.
Comment 1 Vasyl Kaigorodov 2015-03-25 15:02:15 UTC 
Created realmd tracking bugs for this issue:

Affects: fedora-all [bug 1205753]
Comment 2 Stef Walter 2015-04-14 11:06:45 UTC 
Created attachment 1014277 [details]
Disable Automatic AD Jains

Combined patch for this issue.
Comment 4 Huzaifa S. Sidhpurwala 2015-11-17 04:25:10 UTC 
Note:

MITRE does not intend to assign a cve id to it, because it seems to be accepted, intentional behaviour. Red Hat Product Security Team intends to handle this flaw as a hardening fix.
Comment 5 errata-xmlrpc 2015-11-19 03:43:45 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2015:2184 https://rhn.redhat.com/errata/RHSA-2015-2184.html