The SSH server implementation of AsyncSSH before 1.12.1 does not properly check whether authentication is completed before processing other requests. A customized SSH client can simply skip the authentication step.
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 |
|---|---|---|---|
| Asyncssh | Asyncssh_project | * | 1.12.1 (excluding) |
| Python-asyncssh | Ubuntu | artful | * |
| Python-asyncssh | Ubuntu | bionic | * |
| Python-asyncssh | Ubuntu | cosmic | * |
| Python-asyncssh | Ubuntu | disco | * |
| Python-asyncssh | Ubuntu | esm-apps/bionic | * |
| Python-asyncssh | Ubuntu | esm-apps/xenial | * |
| Python-asyncssh | Ubuntu | upstream | * |
| Python-asyncssh | Ubuntu | xenial | * |