GUDE 2301 and 2302 Default Credentials Scanner

The GUDE 2301 and 2302 are network devices commonly used in various industrial and commercial environments for remote control and monitoring purposes. These devices are often implemented in operations where power management and control are critical, and they help provide efficient energy management. GUDE devices enable administrators to manage power distribution networks easily, often featuring user-friendly interfaces for real-time monitoring and control. Industries such as manufacturing, IT infrastructure, and building management frequently utilize these systems to ensure seamless operational continuity. The devices are known for their reliability and flexibility, supporting remote access through web interfaces. They fundamentally streamline operations by allowing centralized control of various networked devices.

The default credentials vulnerability is a common security oversight where devices ship with universally known default login credentials, such as "admin:admin." Users often overlook changing these credentials, leaving the system susceptible to unauthorized access. This vulnerability is particularly concerning as it may allow attackers to gain administrative control without much effort. Default credentials are considered insecure as they can be easily targeted by malicious actors using automated scripts for mass exploitation. Despite the simplicity of mitigation, this oversight persists across various device types, creating significant vulnerabilities. Once compromised, an attacker could disrupt operations, exfiltrate data, or use the device as a launchpad for further attacks. Ensuring the modification of default credentials is a basic but vital security measure.

The vulnerability stems from the device's web interface where it performs authentication using basic HTTP authentication. The URL endpoint '{{BaseURL}}/ov.html?' illustrates where the login attempt occurs. If the device is using the default credentials, an attacker will receive a successful HTTP 200 status code, confirming access through the vulnerable endpoint. This interface offers critical control functions, thereby being attractive to attackers intending to gain entrance to broader network segments. This technical detail pinpoints precisely where defenders need to apply countermeasures in their network security posture. A change from default to unique, strong passwords could significantly mitigate this risk.

If exploited, this vulnerability allows threat actors to gain full administrative privileges over the GUDE devices. With such access, attackers could not only control the power settings within the network but also redirect systems to malicious URLs. Furthermore, they could leverage the access to establish a foothold in the network for more complex attacks, such as lateral movements across systems. The disruption could range from minor service interruptions to large-scale operational outages, affecting connected devices and users significantly. A worst-case effect could be a full network breach and data theft or destruction, representing substantial reputational and financial damage to any organization relying on these devices.

REFERENCES

• https://media.distrelec.com/Web/Downloads/_m/an/Gude_2302-1_ger_man.pdf