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
Keywords:
Status: NEW
Alias: CVE-2017-12160
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks: 1484091
TreeView+ depends on / blocked
 
Reported: 2017-08-22 20:58 UTC by Chess Hazlett
Modified: 2019-09-29 14:19 UTC (History)
16 users (show)

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.
Clone Of:
Environment:
Last Closed:


Attachments (Terms of Use)


Links
System 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 23:53:00 UTC
Red Hat Product Errata RHSA-2017:2905 normal SHIPPED_LIVE Moderate: rh-sso7-keycloak security update 2017-10-17 23:53:19 UTC
Red Hat Product Errata RHSA-2017:2906 normal SHIPPED_LIVE Moderate: Red Hat Single Sign-On security update 2017-10-17 23:42:35 UTC

Description Chess Hazlett 2017-08-22 20:58:25 UTC
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 16:14:42 UTC
Acknowledgments:

Name: Bart Toersche (Simacan)

Comment 2 errata-xmlrpc 2017-10-17 19:42:58 UTC
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 19:53:57 UTC
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 19:54:29 UTC
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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