Bug 1836786 (CVE-2020-10748)

Summary:	CVE-2020-10748 keycloak: top-level navigations to data URLs resulting in XSS are possible (incomplete fix of CVE-2020-1697)
Product:	[Other] Security Response	Reporter:	Paramvir jindal <pjindal>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	aboyko, aileenc, akoufoud, alazarot, almorale, anstephe, avibelli, bgeorges, chazlett, cmoulliard, dkreling, drieden, etirelli, ggaughan, gmalinko, ibek, ikanello, janstey, jbalunas, jochrist, jpallich, jstastny, jwon, krathod, kverlaen, lthon, mnovotny, mszynkie, paradhya, pdrozd, pgallagh, pjindal, rrajasek, rruss, rsynek, sdaley, security-response-team, sthorger
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	RHSSO 7.4.1	Doc Type:	If docs needed, set a value
Doc Text:	A flaw was found in Keycloak's data filter, where it allowed the processing of data URLs in some circumstances. This flaw allows an attacker to conduct cross-site scripting or further attacks.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2020-07-02 13:27:48 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:	1836784

Description Paramvir jindal 2020-05-18 07:08:01 UTC

Insufficient filtering of Client baseUrl (follow-up to CVE-2020-1697)

https://issues.redhat.com/browse/KEYCLOAK-14149

Comment 5 Paramvir jindal 2020-05-19 11:13:36 UTC

Acknowledgments:

Name: Lauritz Holtmann (Chair for Network and Data Security at Ruhr University Bochum)

Comment 8 errata-xmlrpc 2020-07-02 13:21:51 UTC

This issue has been addressed in the following products:

  Red Hat Single Sign-On 7.4.1

Via RHSA-2020:2813 https://access.redhat.com/errata/RHSA-2020:2813

Comment 9 Product Security DevOps Team 2020-07-02 13:27:48 UTC

This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):

https://access.redhat.com/security/cve/cve-2020-10748