Bug 1895432 (CVE-2020-25701)

Summary: CVE-2020-25701 moodle: tool_uploadcourse creates new enrol instances unexpectedly in some circumstances
Product: [Other] Security Response Reporter: Michael Kaplan <mkaplan>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED UPSTREAM QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: gwync, igor.raits, security-response-team, sergio
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: moodle 3.9.3, moodle 3.8.6, moodle 3.7.9, moodle 3.5.15, moodle 3.10 Doc Type: If docs needed, set a value
Doc Text:
If the upload course tool was used to delete an enrolment method which did not exist or was not already enabled, the tool would erroneously enable that enrolment method. This could lead to unintended users gaining access to the course. Versions affected: 3.9 to 3.9.2, 3.8 to 3.8.5, 3.7 to 3.7.8, 3.5 to 3.5.14 and earlier unsupported versions
Story Points: ---
Clone Of: Environment:
Last Closed: 2020-11-19 17:28:42 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Bug Depends On: 1899541, 1899542    
Bug Blocks:    

Description Michael Kaplan 2020-11-06 16:40:09 UTC
If the upload course tool was used to delete an enrolment method which did not exist or was not already enabled, the tool would erroneously enable that enrolment method. This could lead to unintended users gaining access to the course.

Versions affected: 3.9 to 3.9.2, 3.8 to 3.8.5, 3.7 to 3.7.8, 3.5 to 3.5.14 and earlier unsupported versions

Comment 1 Michael Kaplan 2020-11-06 16:40:11 UTC
Acknowledgments:

Name: Víctor Déniz Falcón

Comment 2 Michael Kaplan 2020-11-19 14:05:43 UTC
External References:

https://moodle.org/mod/forum/discuss.php?d=413939

Comment 3 Michael Kaplan 2020-11-19 14:06:01 UTC
Created moodle tracking bugs for this issue:

Affects: epel-all [bug 1899541]
Affects: fedora-all [bug 1899542]

Comment 4 Product Security DevOps Team 2020-11-19 17:28:42 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.