Bug 1205751 – realmd: unauthenticated Active Directory join

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Bug 1205751 - realmd: unauthenticated Active Directory join

Summary:	realmd: unauthenticated Active Directory join

Status:	CLOSED ERRATA

Aliases:	None

Product:	Security Response
Classification:	Other
Component:	vulnerability (Show other bugs)
Sub Component:
Version:	unspecified
Hardware:	All Linux

Priority	medium Severity medium
Target Milestone:	---
Target Release:	---
Assigned To:	Red Hat Product Security
QA Contact:
Docs Contact:

URL:
Whiteboard:	impact=moderate,public=20150218,repor...
Keywords:	Security

Depends On:	1205753 1205754 1233011
Blocks:	1205773
	Show dependency tree / graph

Reported:	2015-03-25 10:59 EDT by Vasyl Kaigorodov
Modified:	2015-11-20 00:59 EST (History)
CC List:	5 users (show)

See Also:
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 00:59:41 EST
Type:	---
Regression:	---
Mount Type:	---
Documentation:	---
CRM:
Verified Versions:
Category:	---
oVirt Team:	---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---

Attachments	(Terms of Use)
Disable Automatic AD Jains (20.59 KB, patch) 2015-04-14 07:06 EDT, Stef Walter	no flags	Details \| Diff
Add an attachment (proposed patch, testcase, etc.)

External Trackers
Tracker	ID	Priority	Status	Summary	Last Updated
Red Hat Product Errata	RHSA-2015:2184	normal	SHIPPED_LIVE	Moderate: realmd security, bug fix, and enhancement update	2015-11-19 02:51:28 EST

Groups: None (edit)

Description Vasyl Kaigorodov 2015-03-25 10:59:22 EDT

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 11:02:15 EDT

Created realmd tracking bugs for this issue:

Affects: fedora-all [bug 1205753]

Comment 2 Stef Walter 2015-04-14 07:06:45 EDT

Created attachment 1014277 [details]
Disable Automatic AD Jains

Combined patch for this issue.

Comment 4 Huzaifa S. Sidhpurwala 2015-11-16 23:25:10 EST

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 2015-11-18 22:43:45 EST

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

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