Asanhamayesh CMS Local File Inclusion Scanner

Asanhamayesh CMS is a comprehensive content management platform widely used by businesses to manage and publish web content. Its flexibility and ease of use make it a popular choice for web designers and developers in creating and maintaining websites. Organizations use Asanhamayesh CMS to easily update web content without the need for deep technical knowledge. It provides an array of features ranging from website template customization to content scheduling. The system is designed for scalability, accommodating both small websites and large enterprise platforms. Its open architecture allows integration with third-party plugins and services to enhance its functionality.

Local File Inclusion (LFI) vulnerability occurs when an application allows users to access files on the server that should not be accessible. This security flaw typically arises from improper input validation of file paths in requests. Attackers can exploit LFI to read sensitive files such as configuration files, database credentials, or even execute code residing on the server under certain conditions. The vulnerability is considered severe as it can lead to unauthorized data exposure and potentially lead to a full system compromise. LFI is often utilized as a stepping stone in more complex attack chains. Properly sanitizing and validating user input is crucial to prevent such vulnerabilities.

This vulnerability in Asanhamayesh CMS version 3.4.6 allows malicious users to craft specific requests to retrieve sensitive files from the server’s filesystem. The exploitation point typically involves a download file function, which improperly handles user input. The critical parameter "file" is vulnerable, allowing attackers to perform directory traversal attacks. With this exploit, attackers can use payloads to access critical system files, like "/etc/passwd" on Unix-based systems. This improper handling arises due to failure in restricting filesystem access in server-side code. Patch and maintenance strategies need to be adopted to secure against such exposures.

Exploitation of this LFI vulnerability can lead to severe repercussions for the affected systems. Attackers may gain unauthorized access to sensitive data, leading to data breaches. These breaches can include exposure of user credentials, private keys, and other confidential information. Furthermore, depending on the server configuration, it might be possible for attackers to maneuver into executing arbitrary code. This can result in service disruptions, data tampering, and possibly complete system takeover. Additionally, it can lead to reputational damage and financial loss to the organization running the vulnerable CMS.

REFERENCES

• https://cxsecurity.com/issue/WLB-2018030006
• https://asanhamayesh.com