Description
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.
References
- cisco-ons-default-vsworks-account(10510) vdb-entry
- 6083 vdb-entry
- 20021031 Cisco ONS15454 and Cisco ONS15327 Vulnerabilities vendor-advisory