Ruijie RG-UAC Remote Code Execution Scanner

The Ruijie RG-UAC unified online behavior management and audit system is utilized by enterprises and organizations to streamline control over user access and monitor online activities within the network infrastructure. Developed by Ruijie, this software aids IT departments in managing security policies, supporting regulatory compliance, and enhancing network security. Its user-friendly interface and robust features make it a preferable choice for environments demanding stringent audit trails and online management capabilities. By mitigating unauthorized access and ensuring strict governance over network use, the RG-UAC helps prevent data breaches and maintains organizational integrity. This system is predominantly deployed in corporate networks, educational institutions, and government facilities requiring a comprehensive user authentication and behavior management solution. However, like other systems handling sensitive operations, ensuring its configurations are secure from vulnerabilities is critical.

The Remote Code Execution (RCE) vulnerability in Ruijie RG-UAC allows an attacker to run arbitrary commands on the affected systems, gaining control over server permissions. This type of vulnerability is highly critical, as it can be exploited by unauthenticated users, potentially resulting in a complete takeover of the compromised server. RCE vulnerabilities are typically caused by improper validation of user inputs or failures in command execution controls within the software. Attackers leveraging this flaw can install malware, manipulate data, or further establish persistence within the network environments. Mitigating such issues is vital to ensure The RG-UAC security and prevent malicious actors from exploiting network services.

Technically, the vulnerability in the Ruijie RG-UAC system resides within the nmc_sync.php interface, an endpoint potentially exposed to remote access. Using specifically crafted requests, attackers are able to bypass normal authentication controls, injecting and executing malicious commands directly on the server. The template tests for this vulnerability by executing a harmless command and verifying if the expected output is generated, indicating the system's susceptibility. Critical parameters such as command inclusion within the template_path attribute highlight the path to exploitation. Ensuring these parameters are properly sanitized can prevent exploitation and maintain system integrity.

Exploitation of this vulnerability may lead to severe consequences for organizations, as it grants attackers remote access with command execution privileges. Potential effects include data theft, unauthorized access to sensitive information, alteration of critical settings, and possible infiltration with malware for prolonged exploitation. Additionally, a successful breach could undermine the organization's reputation, incur financial losses due to downtime or data recovery, and result in legal consequences for failing to safeguard user data. Prompt identification and patching of such vulnerabilities are imperative in safeguarding network systems.

REFERENCES

• https://github.com/xinyisleep/pocscan/blob/main/%E9%94%90%E6%8D%B7/%E9%94%90%E6%8D%B7_EG%E6%98%93%E7%BD%91%E5%85%B3_%E4%B8%8A%E7%BD%91%E8%A1%8C%E4%B8%BA%E7%AE%A1%E7%90%86%E7%B3%BB%E7%BB%9F_%E5%89%8D%E5%8F%B0RCE.py