Bug 1489161 (CVE-2017-12158)

Summary:	CVE-2017-12158 keycloak: reflected XSS using HOST header
Product:	[Other] Security Response	Reporter:	Chess Hazlett <chazlett>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	bdawidow, chazlett, dffrench, drieden, drusso, jmadigan, jshepherd, kpiwko, lgriffin, ngough, pdrozd, pwright, rrajasek, security-response-team, sthorger, trepel
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	Keycloak 3.3.0.Final, Keycloak 3.4.0.Final	Doc Type:	If docs needed, set a value
Doc Text:	It was found that keycloak would accept a HOST header URL in the admin console and use it to determine web resource locations. An attacker could use this flaw against an authenticated user to attain reflected XSS via a malicious server.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2021-10-21 11:56:30 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:
Bug Blocks:	1484091

Description Chess Hazlett 2017-09-06 20:31:18 UTC

It was found that keycloak would accept a HOST header URL in the admin console and use it to determine web resource locations. An attacker could use this flaw against an authenticated user to attain reflected XSS via a malicious server.

Upstream issue:

https://issues.jboss.org/browse/KEYCLOAK-5225

Comment 1 Chess Hazlett 2017-10-17 16:12:25 UTC

Acknowledgments:

Name: Mykhailo Stadnyk (Playtech)

Comment 2 errata-xmlrpc 2017-10-17 19:43:04 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 19:54:04 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 19:54:35 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