medium.com/tag/ctf-writeup· Sep 11, 2026· by Roberto Carlino

HTB Snoopy — From LFI to Root via DNS Hijacking and a Clamscan XXE

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Snoopy is a Linux machine that chains an LFI-driven DNS zone hijack against a Mattermost instance with credential capture through a fake… Continue reading on Medium »
🎯 Vulnerability: Web Security Vulnerability
💡 Defense Fix: Implement strict input validation, contextual output encoding, and enforce least-privilege authorization controls.
#penetration-testing#ethical-hacking#cybersecurity#hackthebox#ctf-writeup