CNVD-2023-03903 Scanner

The EduSoho education and training system is widely used by educational institutions, training centers, and corporate trainers. Its purpose is to provide comprehensive learning management solutions, allowing users to create, manage, and distribute course content effectively. EduSoho simplifies the process of learning by integrating various educational tools and resources. It is popular for its flexible, scalable, and customizable platform that supports diverse learning needs. The system is often chosen for its capability to support a blended learning environment. With its robust community and extensive support, EduSoho helps institutions worldwide deliver quality education and training.

The vulnerability detected in EduSoho pertains to Local File Inclusion (LFI), which is a highly critical security issue. LFI occurs when an attacker is able to include files on a server through the web browser. This vulnerability often arises due to the improper validation of user input, allowing attackers to manipulate file paths. LFI can lead to the exposure of sensitive information, including confidential data and configuration files. If exploited, LFI can result in unauthorized access to the system files, potentially leading to remote code execution or serving as a foothold for further compromises. Thus, remediating LFI vulnerabilities is essential to maintaining the security of web applications.

The technical details of the Local File Inclusion (LFI) vulnerability in EduSoho involve the improper handling of input parameters that lets attackers include unintended files. The vulnerable endpoint includes patterns such as '../../../../../../etc/passwd' used to traverse directories. Attackers leverage this by sending specially crafted HTTP requests to read sensitive server files. The misuse of relative path references in file retrieval processes is the core weakness. Typically, LFI vulnerabilities depend on the application logic which doesn’t restrict file references correctly. By exploiting this, an attacker can read the contents of configuration files like 'config/parameters.yml'. Detection of such vulnerabilities is crucial as it can lead to severe security risks.

Exploiting the Local File Inclusion vulnerability can have profound effects on system confidentiality, integrity, and availability. If attackers gain access to sensitive files, they might obtain credentials for database access or sensitive configuration files. With such data, they can breach further into the system. Moreover, LFI can lead to remote code execution if the server allows scripting files to be included and executed. Systems might also experience data loss or manipulation. Additionally, LFI exploits can serve as the first step towards gaining full control over the server, potentially leaving it vulnerable to various threats. Addressing this vulnerability is key to preserving system security and data privacy.

REFERENCES

• https://blog.csdn.net/qq_41904294/article/details/135007351
• https://github.com/gobysec/GobyVuls/blob/master/CNVD-2023-03903.md