Security Write-ups & Research
CTF write-ups, security research, and technical notes.
Silent Footprint CTF — Full Attack Chain from SMB to Root
Overview Silent Footprint is a free CTF lab from INE with four challenges that chain together into a full penetration test: enumerate services, gain initial access, pivot through a segmented network, and escalate to root using a recent sudo vulnerability. The lab has three target machines — ctf.playground.ine, ctf2.playground.ine, and a hidden third host that doesn’t resolve by name. The attack path crosses two network segments and ends with a privilege escalation via CVE-2025-32463. ...