Bug 1576267 (CVE-2018-5166)

Summary:	CVE-2018-5166 Mozilla: WebExtension host permission bypass through filterReponseData
Product:	[Other] Security Response	Reporter:	Doran Moppert <dmoppert>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED NOTABUG	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	cschalle, gecko-bugs-nobody, jhorak, security-response-team, stransky
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
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Last Closed:	2019-06-10 10:22:05 UTC	Type:	---
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:
Bug Blocks:	1573375

Description Doran Moppert 2018-05-09 07:14:51 UTC

WebExtensions can use request redirection and a `filterReponseData` filter to bypass host permission settings to redirect network traffic and access content from a host for which they do not have explicit user permissions.



External Reference:

https://www.mozilla.org/en-US/security/advisories/mfsa2018-11/#CVE-2018-5166

Comment 1 Doran Moppert 2018-05-09 07:14:56 UTC

Acknowledgments:

Name: the Mozilla project
Upstream: Francois Lajeunesse Robert