Hackfail.htb

22/tcp – OpenSSH 7.9p1 80/tcp – Apache httpd 2.4.38 8080/tcp – Apache Tomcat 9.0.30

Tools like directory brute-forcers, passive crawling, and careful inspection of responses uncovered these with minimal noise — the hallmark of stealthy, effective reconnaissance. hackfail.htb

Visiting the website on port 80 in a browser presents a basic login portal. This is the initial foothold we need to investigate. A key observation is that if you enter any random username, you're met with a generic "Try Again" message. However, if you enter the username admin , the error message changes to inform you that the password is wrong. This subtle difference is critical—it confirms that the admin user exists in the system, giving us a valid username to work with. 22/tcp – OpenSSH 7

# Check for unencrypted files containing credentials grep -ri "password" /var/www/html/ 2>/dev/null cat /home/user/user.txt Use code with caution. 2. Database or Configuration Harvesting A key observation is that if you enter

The note reveals a critical vulnerability disclosure: "User informed me that he was able to log into MY account without knowing the password and gain FULL CONTROL over the website using the image upload feature... A senior PHP developer was responsible for URL filtering for uploads, so I have no idea how he succeeded."