The Shibboleth authentication plugin in auth/shibboleth/index.php in Moodle through 2.3.11, 2.4.x before 2.4.11, and 2.5.x before 2.5.7 does not check whether a session ID is empty, which allows remote authenticated users to hijack sessions via crafted plugin interaction.
When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Moodle | Moodle | 2.4.0 (including) | 2.4.0 (including) |
| Moodle | Moodle | 2.4.1 (including) | 2.4.1 (including) |
| Moodle | Moodle | 2.4.2 (including) | 2.4.2 (including) |
| Moodle | Moodle | 2.4.3 (including) | 2.4.3 (including) |
| Moodle | Moodle | 2.4.4 (including) | 2.4.4 (including) |
| Moodle | Moodle | 2.4.5 (including) | 2.4.5 (including) |
| Moodle | Moodle | 2.4.6 (including) | 2.4.6 (including) |
| Moodle | Moodle | 2.4.7 (including) | 2.4.7 (including) |
| Moodle | Moodle | 2.4.8 (including) | 2.4.8 (including) |
| Moodle | Moodle | 2.4.9 (including) | 2.4.9 (including) |
| Moodle | Moodle | 2.4.10 (including) | 2.4.10 (including) |
| Moodle | Ubuntu | lucid | * |
| Moodle | Ubuntu | precise | * |
| Moodle | Ubuntu | trusty | * |
| Moodle | Ubuntu | upstream | * |