Tyan Megarac SP Default Credentials Scanner

Tyan Megarac SP is a service processor used in Tyan motherboards to manage and monitor hardware components remotely. It is primarily used by IT administrators and technicians in data centers and enterprise environments for efficient hardware management. This product allows for operations such as system monitoring, remote access to hardware settings, and firmware updates. Due to its critical management features, maintaining security in accessing Tyan Megarac SP is vital. The product is designed to facilitate ease of management for large-scale server installations. Its usage spans multiple industries that require reliable server management tools.

Default Credentials vulnerabilities occur when systems are shipped or configured with default usernames and passwords, intended to simplify initial setup but often not changed post-installation. Such vulnerabilities can grant unauthorized access due to predictable authentication credentials. In the case of Tyan Megarac SP, retaining default settings poses significant risks to system integrity. It allows malicious actors easy access if they manage to connect to the network where Tyan devices are deployed. Proper mitigation involves changing these default credentials immediately upon installation to maintain system security.

Technical details of this vulnerability include the use of common default usernames such as 'admin', 'sysadmin', and 'root' in conjunction with weak default passwords. The endpoint, represented by '/rpc/WEBSES/create.asp', processes login attempts. Successful exploitation involves predicting or knowing the default credentials and gaining system access. A pattern indicating a session creation response ('SESSION_COOKIE') in the HTTP body can confirm successful exploitation. Due to the nature of this vulnerability, access control measures can be bypassed if the system administrators have not modified these settings after setup.

Exploiting this vulnerability can lead to unauthorized access to critical system management features. Once an attacker is inside the Tyan Megarac SP, they can monitor and potentially control various hardware components. This could result in unauthorized configuration changes, system downtime, or broader network compromise if not addressed. Continuation of use under default credentials increases the risk of information theft and unauthorized control over critical infrastructure, possibly leading to severe organizational damage.

REFERENCES

• https://blog.mpecsinc.com/2020/03/30/tyan-rmm-tips-default-username-and-password-plus-set-up-tips/