CVE-2002-1558
HighSummary
Cisco ONS15454 and ONS15327 running ONS before 3.4 have an account for the VxWorks Operating System that cannot be changed or disabled. This allows remote attackers to gain privileges by connecting to the account via Telnet.
Risk Assessment
Attackers can gain unauthorized access to the system, potentially leading to serious security breaches and data loss.
Recommendation
It is recommended to update the devices to the latest software version to remove this account or block access to Telnet.
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Original NVD description (English source)
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.