CNVD-2021-09650 Scanner

The Ruijie EWEB Network Management System is a sophisticated tool used by organizations to manage and monitor their network infrastructure efficiently. It is popular among IT professionals and network administrators for its capability to streamline network operations and ensure connectivity. The system offers a variety of features, including monitoring network performance, configuring devices, and automating network tasks. Utilized in enterprises, governmental agencies, and institutions, it helps maintain robust and efficient network environments. The EWEB platform's ease of integration with existing network setups makes it a preferred choice for ensuring operational continuity. Regular updates and a strong support network bolster its reliability and security.

Remote Code Execution (RCE) is a critical vulnerability that allows attackers to execute arbitrary code on a remote system. This vulnerability is particularly dangerous because it can be exploited without physical access to the system. RCE vulnerabilities can lead to unauthorized control over a system, allowing malicious actors to alter configurations, steal data, or propagate other malicious activities. The exploitation of RCE typically involves sending crafted requests to vulnerable endpoints, which are then improperly processed by the system. Due to its severe impact potential, addressing any RCE vulnerability is crucial to maintaining the security posture of an affected system.

The Remote Code Execution vulnerability in Ruijie EWEB Network Management System is linked to improper handling of input in the 'guestIsUp.php' endpoint. The system inadequately filters user-provided inputs in the 'mac' or 'ip' parameters, which allows injection of malicious commands. Attackers can craft HTTP POST requests to these parameters with shell command sequences appended, initiating unauthorized operations on the host server. The endpoint's logic vulnerability arises from concatenating unsanitized user input into shell command constructs. The endpoint at this location does not employ adequate escaping or validation techniques to neutralize or reject unsafe entries, leading to elevated risk of system compromise.

Exploitation of the RCE vulnerability could lead to significant adverse effects, such as complete system takeover by malicious actors. Attackers could extract sensitive information, install unauthorized software, and possibly use compromised systems as springboards for further network infiltration. The integrity and availability of network resources could be seriously undermined, impacting business operations and data security. Furthermore, persistent threats could establish footholds within affected environments, leading to prolonged exposure to malicious activities. Mitigating this vulnerability is vital to prevent unauthorized access and the cascading effects that result from it.

REFERENCES

• https://github.com/yumusb/EgGateWayGetShell_py/blob/main/eg.py
• https://www.ruijienetworks.com