Codem-chat.rar
If the chat allows "file sharing," try to fetch /etc/passwd or the flag file using ../../flag.txt . 4. Conclusion & Flag
Use The Unarchiver or the brew command brew install unrar . codem-chat.rar
The provided file is a . After downloading, the first step is to check its contents without fully extracting to see the file structure. Command: unrar l codem-chat.rar If the chat allows "file sharing," try to
If the challenge is a "White Box" (source code provided), we look for common vulnerabilities in the chat logic: If the chat allows "file sharing
The archive typically contains source code for a Node.js or Python-based chat application. Key files might include app.js , package.json , or a hidden .env file. 2. Static Analysis

