HJTcloud Local File Inclusion Scanner

HJTcloud is a popular cloud service platform used by organizations to manage their data and applications in a secure environment. It offers various functionalities like backup, recovery, and sharing of digital resources. The platform is utilized by IT departments to streamline infrastructure management and improve operational efficiencies. Users of HJTcloud include enterprises and governmental agencies aiming to leverage cloud technologies for enhanced performance. The service is designed to offer scalable solutions that can adapt to the dynamic needs of clients. HJTcloud supports integrations with various third-party applications to expand its feature set and provide comprehensive cloud management tools.

Local File Inclusion (LFI) is a type of vulnerability that allows attackers to include files on a server through the web browser. This vulnerability can lead to information disclosure, remote code execution, or the complete takeover of a vulnerable service. LFI arises due to insufficient input validation and can be exploited by manipulating file parameters to include unintended files. It typically affects web applications that dynamically include files based on user input, often through URL parameters. The risk associated with LFI depends on the sensitivity of the included files and the logic of the exploited application. Exploitations of LFI vulnerabilities can lead to significant security breaches if left unaddressed.

The vulnerability in the HJTcloud platform involves the inclusion of unauthorized files through a file download endpoint. Affected endpoints include "/fileDownload?action=downloadBackupFile," which is susceptible to LFI due to inadequate input sanitization. This issue allows malicious users to craft requests that can access system files such as "/etc/passwd" on Linux or "win.ini" on Windows servers. Successful exploitation can yield sensitive information that helps attackers further infiltrate the system. The endpoint improperly processes user input, making it feasible for attackers to infer the presence of crucial files based on response behavior. LFI vulnerabilities like those in HJTcloud can serve as footholds for more complex attacks.

When successfully exploited, the LFI vulnerability in the HJTcloud platform can result in unauthorized access to server files. This may lead to the disclosure of sensitive data, such as user credentials and system configuration details. Attackers could leverage this information to escalate privileges within the network and execute further cyberattacks. The accessibility of system files might also enable attackers to alter application behaviors, potentially introducing malicious code. On a broader scale, exploiting the vulnerability could compromise the integrity, confidentiality, and availability of the hosted data and services. The fallout from such breaches often includes operational disruptions and reputational damage.

REFERENCES

• https://mp.weixin.qq.com/s/w2pkj5ADN7b5uxe-wmfGbw