Cisco ONS15454 and ONS15327 running ONS before 3.4 have an account for the VxWorks Operating System in the TCC, TCC+ and XTC that cannot be changed or disabled, which allows remote attackers to gain privileges by connecting to the account via Telnet.
| Software | From | Fixed in |
|---|---|---|
| cisco / optical_networking_systems_software | 3.2 | 3.2.x |
| cisco / optical_networking_systems_software | 3.3.0 | 3.3.0.x |
| cisco / optical_networking_systems_software | 3.1.0 | 3.1.0.x |
| cisco / optical_networking_systems_software | 3.2.0 | 3.2.0.x |
| cisco / optical_networking_systems_software | 3.0 | 3.0.x |