SecGate 3600 Firewall Arbitrary File Upload Scanner

The SecGate 3600 Firewall is a security product commonly used by enterprises and organizations for protecting their internal networks. It is deployed in various types of network environments to filter incoming and outgoing traffic based on predetermined security rules. The purpose of this firewall is to prevent unauthorized access and cyber threats while allowing legitimate traffic to flow seamlessly. The SecGate 3600 Firewall is typically managed by IT professionals or network administrators who configure and monitor its performance. It is known for its robustness and reliability, often forming a critical component in the security infrastructure of many institutions. As an integral part of network security solutions, it provides tools and functionalities to secure sensitive data and maintain the integrity of the network.

The Arbitrary File Upload vulnerability allows attackers to upload malicious files to a server without authorization. This vulnerability exists when the software does not properly validate or sanitize file inputs, allowing for server-side code execution. Exploiting this flaw, attackers can upload scripts or executable files that could be run on the server, escalating their level of access or compromising critical data. Typically, such vulnerabilities can be found in web applications with poor security configurations of file upload functionalities. This type of vulnerability poses a significant risk as it could lead to system compromises and subsequent severe security breaches. Effective mitigation strategies involve implementing stringent input validation and restricting the types of files that can be uploaded to the server.

In the case of the SecGate 3600 Firewall, the vulnerability is specifically present in the 'obj_app_upfile' endpoint, where file uploads occur without sufficient security checks. The vulnerable parameter is the file upload input, which can accept arbitrary files disguised as legitimate uploads. Attackers can craft a special request to exploit this endpoint, potentially leading to a server compromise. To execute the attack, malicious files, such as a PHP script, are disguised and uploaded to the server. Once uploaded, the attacker can trigger code execution using these malicious files, enabling them to manipulate or change server configurations. This technical oversight offers a vector for gaining unauthorized server access, highlighting the need for more comprehensive security practices.

Exploiting the Arbitrary File Upload vulnerability can have numerous detrimental effects. Hackers can execute malicious scripts to deface websites hosted on the compromised server. Data breach and extraction become possible, compromising confidential information. Attackers can introduce backdoors, granting them persistent access to the system, facilitating further exploitation. The vulnerability can also be used as a stepping stone to launch additional attacks within the network, such as lateral movement or privilege escalation attacks. It can undermine the reputation of the organization, resulting in financial and reputational damage. Organizations must promptly address this vulnerability to safeguard their infrastructure and maintain the trust of their stakeholders.

REFERENCES

• https://peiqi.wgpsec.org/wiki/iot/%E5%A5%87%E5%AE%89%E4%BF%A1/%E7%BD%91%E7%A5%9E%20SecGate%203600%20%E9%98%B2%E7%81%AB%E5%A2%99%20obj_app_upfile%20%E4%BB%BB%E6%84%8F%E6%96%87%E4%BB%B6%E4%B8%8A%E4%BC%A0%E6%BC%8F%E6%B4%9E.html
• https://github.com/PeiQi0/PeiQi-WIKI-Book/blob/main/docs/wiki/iot/%E5%A5%87%E5%AE%89%E4%BF%A1/%E7%BD%91%E7%A5%9E%20SecGate%203600%20%E9%98%B2%E7%81%AB%E5%A2%99%20obj_app_upfile%20%E4%BB%BB%E6%84%8F%E6%96%87%E4%BB%B6%E4%B8%8A%E4%BC%A0%E6%BC%8F%E6%B4%9E.md