The vulnerability was found Moodle which exists due to insufficient limitations on the start page preference. A remote attacker can set that preference for another user. The vulnerability allows a remote attacker to gain unauthorized access to otherwise restricted functionality.
The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Moodle | Moodle | 3.9.0 (including) | 3.9.19 (excluding) |
| Moodle | Moodle | 3.11.0 (including) | 3.11.12 (excluding) |
| Moodle | Moodle | 4.0.0 (including) | 4.0.6 (excluding) |
| Moodle | Moodle | 4.1.0 (including) | 4.1.0 (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: