Nextcloud Server before 9.0.54 and 10.0.1 & ownCloud Server before 9.0.6 and 9.1.2 suffer from content spoofing in the dav app. The exception message displayed on the DAV endpoints contained partially user-controllable input leading to a potential misrepresentation of information.
The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Nextcloud_server | Nextcloud | * | 9.0.54 (excluding) |
| Nextcloud_server | Nextcloud | 10.0.0 (including) | 10.0.1 (including) |
| Owncloud | Owncloud | 9.0.0 (including) | 9.0.6 (excluding) |
| Owncloud | Owncloud | 9.1.0 (including) | 9.1.2 (excluding) |
| Owncloud | Ubuntu | precise | * |
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: