Directory traversal attack example

The simplest example of a directory traversal attack is when an application displays or allows the user to download a file via a URL parameter.

1. What is a directory traversal attack answer?
2. How does directory traversal attack work?
3. What causes directory traversal?
4. What is the impact of directory traversal attack?
5. How do you mitigate a directory traversal attack?

What is a directory traversal attack answer?

Directory traversal (also known as file path traversal) is a web security vulnerability that allows an attacker to read arbitrary files on the server that is running an application. This might include application code and data, credentials for back-end systems, and sensitive operating system files.

How does directory traversal attack work?

Directory traversal is a type of HTTP exploit in which a hacker uses the software on a web server to access data in a directory other than the server's root directory. If the attempt is successful, the threat actor can view restricted files or execute commands on the server.

What causes directory traversal?

Directory traversal (path traversal) happens when the attacker is able to read files on the web server outside of the directory of the website. Directory traversal is only possible if the website developer makes mistakes.

What is the impact of directory traversal attack?

The impact of a Directory Traversal attack

An attacker can leverage a directory traversal vulnerability in the system to step out of the root directory, allowing them to access other parts of the file system to view restricted files and gather more information required to further compromise the system.

How do you mitigate a directory traversal attack?

How to mitigate directory traversal attacks? One method for preventing directory traversal attacks is to avoid passing user-supplied input to filesystem APIs. Many functions that pass user-supplied input can be rewritten so they retain the same behavior, but in a much safer manner.