Bug 1484154 – CVE-2017-12160 keycloak: resource privilege extension via access token in oauth

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Bug 1484154 - (CVE-2017-12160) CVE-2017-12160 keycloak: resource privilege extension via access token in oauth

Summary:	CVE-2017-12160 keycloak: resource privilege extension via access token in oauth

Status:	NEW

Aliases:	CVE-2017-12160

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

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

URL:
Whiteboard:	impact=low,public=20171017,reported=2...
Keywords:	Security

Depends On:
Blocks:	1484091
	Show dependency tree / graph

Reported:	2017-08-22 16:58 EDT by Chess Hazlett
Modified:	2018-08-01 16:57 EDT (History)
CC List:	17 users (show)

See Also:
Fixed In Version:	Keycloak 3.3.0.Final, Keycloak 3.4.0.Final
Doc Type:	Bug Fix
Doc Text:	It was found that Keycloak oauth would permit an authenticated resource to obtain an access/refresh token pair from the authentication server, permitting indefinite usage in the case of permission revocation. An attacker on an already compromised resource could use this flaw to grant himself continued permissions and possibly conduct further attacks.
Story Points:	---
Clone Of:
Environment:
Last Closed:
Type:	---
Regression:	---
Mount Type:	---
Documentation:	---
CRM:
Verified Versions:
Category:	---
oVirt Team:	---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---

Attachments	(Terms of Use)
Add an attachment (proposed patch, testcase, etc.)

External Trackers
Tracker	ID	Priority	Status	Summary	Last Updated
Red Hat Product Errata	RHSA-2017:2904	normal	SHIPPED_LIVE	Moderate: rh-sso7-keycloak security update	2017-10-17 19:53:00 EDT
Red Hat Product Errata	RHSA-2017:2905	normal	SHIPPED_LIVE	Moderate: rh-sso7-keycloak security update	2017-10-17 19:53:19 EDT
Red Hat Product Errata	RHSA-2017:2906	normal	SHIPPED_LIVE	Moderate: Red Hat Single Sign-On security update	2017-10-17 19:42:35 EDT

Groups: None (edit)

Description Chess Hazlett 2017-08-22 16:58:25 EDT

It was found that Keycloak oauth would permit an authenticated resource to obtain an access/refresh token pair from the authentication server, permitting indefinite usage in the case of permission revocation. An attacker on an already compromised resource could use this flaw to grant himself continued permissions and possibly conduct further attacks.

Upstream issue:

https://issues.jboss.org/browse/KEYCLOAK-5280

Comment 1 Chess Hazlett 2017-10-17 12:14:42 EDT

Acknowledgments:

Name: Bart Toersche (Simacan)

Comment 2 errata-xmlrpc 2017-10-17 15:42:58 EDT

This issue has been addressed in the following products:

  Red Hat Single Sign-On

Via RHSA-2017:2906 https://access.redhat.com/errata/RHSA-2017:2906

Comment 3 errata-xmlrpc 2017-10-17 15:53:57 EDT

This issue has been addressed in the following products:

  Red Hat Single Sign-On 7.1 for RHEL 6

Via RHSA-2017:2904 https://access.redhat.com/errata/RHSA-2017:2904

Comment 4 errata-xmlrpc 2017-10-17 15:54:29 EDT

This issue has been addressed in the following products:

  Red Hat Single Sign-On 7.1 for RHEL 7

Via RHSA-2017:2905 https://access.redhat.com/errata/RHSA-2017:2905

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