If the upload course tool in Moodle was used to delete an enrollment method which did not exist or was not already enabled, the tool would erroneously enable that enrollment 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. This is fixed in moodle 3.9.3, 3.8.6, 3.7.9, 3.5.15, and 3.10.
The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Moodle | Moodle | 3.5.0 (including) | 3.5.14 (including) |
| Moodle | Moodle | 3.7.0 (including) | 3.7.8 (including) |
| Moodle | Moodle | 3.8.0 (including) | 3.8.5 (including) |
| Moodle | Moodle | 3.9.0 (including) | 3.9.2 (including) |
| Moodle | Ubuntu | bionic | * |
| Moodle | Ubuntu | trusty | * |
| Moodle | Ubuntu | xenial | * |
Access control involves the use of several protection mechanisms such as:
When any mechanism is not applied or otherwise fails, attackers can compromise the security of the product by gaining privileges, reading sensitive information, executing commands, evading detection, etc. There are two distinct behaviors that can introduce access control weaknesses: