Kali Linux

Log4J-Detect : Script To Detect The “Log4j” Java Library Vulnerability For A List Of URLs With Multithreading

Log4J-Detect is a script “log4j-detect.py” developed in Python 3 is responsible for detecting whether a list of URLs are vulnerable to CVE-2021-44228.

To do so, it sends a GET request using threads (higher performance) to each of the URLs in the specified list. The GET request contains a payload that on success returns a DNS request to Burp Collaborator / interactsh. This payload is sent in a test parameter and in the “User-Agent” / “Referer” / “X-Forwarded-For” / “Authentication” headers. Finally, if a host is vulnerable, an identification number will appear in the subdomain prefix of the Burp Collaborator / interactsh payload and in the output of the script, allowing to know which host has responded via DNS.

It should be noted that this script only handles DNS detection of the vulnerability and does not test remote command execution.

Downloading log4j-detect.py

wget https://github.com/takito1812/log4j-detect/raw/main/log4j-detect.py

Running log4j-detect.py

python3 log4j-detect.py

R K

Recent Posts

What Is a Data Protection Platform and Why Your Organization Needs One

A data protection platform is a unified system that helps organizations discover, classify, monitor, and…

4 days ago

How Swiss Privacy Rules Affect AI Companies Under GDPR

AI companies operating in or around Switzerland face a compliance challenge that most legal teams…

5 days ago

Swiss FADP vs EU GDPR: Key Differences for AI and Data Privacy

Two major data privacy laws now govern how organizations handle personal data across Europe; the…

6 days ago

Kali Linux Commands Cheat Sheet: Complete Quick Reference

This cheat sheet covers the essential Kali Linux commands every pentester and ethical hacker uses…

1 month ago

What I Wish I Knew Before Learning Malware Analysis and Reverse Engineering

When I first started learning malware analysis and reverse engineering, I thought the hardest part…

1 month ago

git fetch vs git pull: How They Work and When to Use Each

Both git fetch and git pull talk to a remote repository, but they do very different things to your…

2 months ago