Bug 1696314 (CVE-2018-12550)

Summary:	CVE-2018-12550 mosquitto: improper access control in ACL file leads to use default allow policy
Product:	[Other] Security Response	Reporter:	Dhananjay Arunesh <darunesh>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	linville, mail, richmattes
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2019-05-09 16:07:51 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:	1696315, 1696317
Bug Blocks:

Description Dhananjay Arunesh 2019-04-04 14:17:51 UTC

When Eclipse Mosquitto version 1.0 to 1.5.5 (inclusive) is configured to use an ACL file, and that ACL file is empty, or contains only comments or blank lines, then Mosquitto will treat this as though no ACL file has been defined and use a default allow policy. The new behaviour is to have an empty ACL file mean that all access is denied, which is not a useful configuration but is not unexpected.

Reference:
https://bugs.eclipse.org/bugs/show_bug.cgi?id=541870

Comment 1 Dhananjay Arunesh 2019-04-04 14:19:06 UTC

Created mosquitto tracking bugs for this issue:

Affects: fedora-29 [bug 1696315]

Comment 2 Dhananjay Arunesh 2019-04-04 14:19:34 UTC

Created mosquitto tracking bugs for this issue:

Affects: epel-7 [bug 1696317]