Bug 1692908 (CVE-2019-3849)

Summary:	CVE-2019-3849 moodle: Users could elevate their role when accessing the LTI tool on a provider site
Product:	[Other] Security Response	Reporter:	Laura Pardo <lpardo>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED UPSTREAM	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
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	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2019-06-10 10:52:06 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:	1692910, 1692909
Bug Blocks:

Description Laura Pardo 2019-03-26 16:46:13 UTC

A vulnerability was found in moodle before versions 3.6.3, 3.5.5 and 3.4.8. Users could assign themselves an escalated role within courses or content accessed via LTI, by modifying the request to the LTI publisher site.


Upstream Bug:
https://tracker.moodle.org/browse/MDL-62702

Upstream Patch:
http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-62702

Comment 1 Laura Pardo 2019-03-26 16:46:16 UTC

Acknowledgments:

Name: Brendan Cox

Comment 2 Laura Pardo 2019-03-26 16:46:19 UTC

External References:

https://moodle.org/mod/forum/discuss.php?d=384012#p1547744

Comment 3 Laura Pardo 2019-03-26 16:46:39 UTC

Created moodle tracking bugs for this issue:

Affects: epel-all [bug 1692910]
Affects: fedora-all [bug 1692909]

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