Bug 1692916 (CVE-2019-3850)

Summary:	CVE-2019-3850 moodle: Stored HTML in assignment submission comments allowed links to be opened directly
Product:	[Other] Security Response	Reporter:	Laura Pardo <lpardo>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED UPSTREAM	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	gwync, igor.raits, sergio
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	moodle 3.6.3, moodle 3.5.5, moodle 3.4.8, moodle 3.1.17	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2019-06-10 10:52:08 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:	1692917, 1692918
Bug Blocks:

Description Laura Pardo 2019-03-26 16:57:10 UTC

A vulnerability was found in moodle before versions 3.6.3, 3.5.5, 3.4.8 and 3.1.17. Links within assignment submission comments would open directly (in the same window). Although links themselves may be valid, opening within the same window and without the no-referrer header policy made them more susceptible to exploits.


Upstream Bug:
https://tracker.moodle.org/browse/MDL-64651

Upstream Patch:
http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-64651

Comment 1 Laura Pardo 2019-03-26 16:57:13 UTC

Acknowledgments:

Name: Steeven George

Comment 2 Laura Pardo 2019-03-26 16:57:15 UTC

External References:

https://moodle.org/mod/forum/discuss.php?d=384013#p1547745

Comment 3 Laura Pardo 2019-03-26 16:57:32 UTC

Created moodle tracking bugs for this issue:

Affects: epel-all [bug 1692918]
Affects: fedora-all [bug 1692917]

Comment 4 Product Security DevOps Team 2019-06-10 10:52:08 UTC

This CVE Bugzilla entry is for community support informational purposes only as it does not affect a package in a commercially supported Red Hat product. Refer to the dependent bugs for status of those individual community products.