CERIO-DT Command Injection Scanner

The CERIO-DT Interface is commonly used in CERIO's DT series routers, which are employed across various network environments, from small businesses to larger institutions, to manage routing operations efficiently. These routers are essential for ensuring seamless and robust internet connectivity. Network administrators and IT professionals use the CERIO-DT Interface to configure router settings, manage network traffic, and oversee network security operations. The interface provides necessary tools and functionalities for maintaining an optimized and secure network performance. Given its critical role in network management, ensuring the CERIO-DT Interface functions without any vulnerabilities is vital for network security. Many organizations rely on this interface to prevent unauthorized access and maintain the integrity of their network systems.

The command injection vulnerability detected in the CERIO-DT Interface allows attackers to execute arbitrary commands within the application framework. This vulnerability arises when user inputs are improperly sanitized, leading to the execution of unintended commands through the system shell. Attackers could exploit this to gain unauthorized access to system functionalities, manipulate system configurations, or disrupt network operations. Such vulnerabilities are particularly concerning as they can compromise the underlying network infrastructure, leading to potential data breaches or service interruptions. Identifying and mitigating command injection vulnerabilities are crucial steps in ensuring the security and stability of network operations. Security measures and best practices need to be implemented to safeguard against such exploitations.

Technical details of the command injection vulnerability in CERIO-DT Interface involve exploiting the 'Save.cgi' endpoint with unsanitized input parameters. The POST request sent to this endpoint includes a parameter 'pid' followed by shell command injections using characters like semicolons. When these characters are not adequately handled, they allow the execution of shell commands remotely. The manipulated input combined with a valid HTTP status response enables attackers to confirm successful command execution. The use of Basic Authorization credentials in HTTP headers further highlights potential attack vectors if credentials are compromised. These technical aspects emphasize the need for secure coding practices and thorough input validation mechanisms.

When this command injection vulnerability is exploited, the potential effects can be severe and far-reaching. Attackers could gain unauthorized access to the router's operating system, enabling them to manipulate network configurations, redirect traffic, or potentially shut down network services. Such exploitations could lead to data breaches, as sensitive information within the network might be accessed or exfiltrated. Additionally, the integrity and availability of network services might be compromised, resulting in operational downtime and financial losses. Prolonged exposure to this vulnerability could undermine trust in network security and impact the reputation of the affected organization.

REFERENCES

• https://github.com/20142995/sectool
• https://github.com/tanjiti/sec_profile
• https://github.com/wy876/POC/blob/main/D-Link_DAR-8000%E6%93%8D%E4%BD%9C%E7%B3%BB%E7%BB%9F%E5%91%BD%E4%BB%A4%E6%B3%A8%E5%85%A5%E6%BC%8F%E6%B4%9E(CVE-2023-4542).md