Description: Local File Inclusion (LFI) is a security vulnerability that allows an attacker to include files on a server through a web browser. This technique relies on manipulating a system’s inputs, where the attacker can modify the file paths that the server attempts to load. If the system does not properly validate these inputs, the attacker can access sensitive server files, such as configuration files, passwords, or even execute malicious code. LFI is particularly dangerous because it can lead to remote code execution (RCE) if combined with other vulnerabilities. Exploiting LFI can be used to obtain confidential information, escalate privileges, or completely compromise a server. Detecting this vulnerability is crucial in penetration testing, as it allows security professionals to identify and mitigate risks in web applications that do not properly handle file inclusion. LFI commonly occurs in applications that use input parameters to load files, such as web applications that allow user file uploads without adequate validation.
