When adding attachments to ticket comments, another user can add attachments as well impersonating the orginal user. The attack requires a logged-in other user to know the UUID. While the legitimate user completes the comment, the malicious user can add more files to the comment.
This issue affects OTRS: from 7.0.X through 7.0.48, from 8.0.X through 8.0.37, from 2023.X through 2023.1.1.
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 |
|---|---|---|---|
| Otrs | Otrs | 7.0.0 (including) | 7.0.49 (excluding) |
| Otrs | Otrs | 8.0.0 (including) | 2024.1.1 (excluding) |
| Otrs2 | Ubuntu | bionic | * |
| Znuny | Ubuntu | mantic | * |