Vulnerability › Module 9 › Lesson 4
Remediation Lab
Patch one P1 on YOUR lab VM, update tracker, retest, document — no exploit PoCs.
Visual · t18_remediation_lab
Lab: remediate + retest on $LAB_ASSETS. Original Cyberlium.
Opening
Patch your lab VM, rescan it, close the row — that is defender closure, not neighbor router chaos.
On $LAB_ASSETS: (1) pick one P1 from remediation tracker; (2) apply patch or documented compensate on YOUR lab VM (snapshot first); (3) update tracker Owner/Due/Status; (4) retest with safe method; (5) mark Closed with evidence. Optional: accept one low finding with review date and justification. chmod 600 all notes. No patching systems you do not own, no exploit validation, no scanning new unauthorized hosts.
1. Patch or compensate
Snapshot VM before change. Record package versions before/after.
If compensate only — document rule and schedule patch follow-up.
Command guide
Try these commands — Patch or compensate
═══ TOOLS & WEBSITES ═══ Browse / read these (authorized learning only — stay in YOUR lab / program scope)
Remediation tracking — owner, due date, retest OpenVAS retest literacy — https://docs.greenbone.net/
═══ INSTALL ═══
Linux (Debian/Ubuntu):
Command — copy this
sudo apt install nmap
macOS:
Command — copy this
brew install nmap
Windows:
Command — copy this
choco install nmap # or download https://nmap.org/download.html
═══ LINUX / macOS ═══
Command — copy this
cat > "$HOME/cyberlium-lab/t18-remediation.txt" <<'EOF' finding: treatment: patch|compensate|accept owner: due_date: retest_plan: nmap -sV $LAB_HOST EOF
Command — copy this
source "$HOME/cyberlium-lab/t18-lab.env"; nmap -sn "$LAB_HOST" grep -E 'treatment|retest' "$HOME/cyberlium-lab/t18-remediation.txt"
Primary tools to practice this lesson: grep, nmap. Reference sites: Remediation tracking; OpenVAS retest literacy (https://docs.greenbone.net/). Run every command in the box — install first, then the usage lines — only on YOUR lab / program scope.
2. Tracker update
Status progression Open → In Progress → Closed with dates.
Link retest evidence to report finding ID.
3. Teardown
Revert snapshot if lab requires clean state — document either way.
Secure remediation log chmod 600.
4. What you ship: remediation lab closure pack
One closed P1 with patch/compensate + retest evidence + tracker screenshot redacted.
5. What you record before the next lesson
Remediation lab path.
6. Wrong vs right: stranger nets vs YOUR lab assets
Worked failure — same MSF word, opposite target. Right never needs a café Wi-Fi or classmate laptop.
Wrong
Patch neighbor device 'to help them' without permission.
Right
Remediation + retest on $LAB_ASSETS. Next: quiz.
Mission: remediation lab
1) Fix one P1 on lab VM. 2) Update tracker and retest. 3) Close with evidence; secure notes.
Stuck? Ask Cyberlium AI Mentor
Ask Mentor: “Snapshot rollback practice?”
Knowledge Check
APPLY: Remediation lab target:
Multiple choice
Knowledge Check
APPLY: True or False: Exploit PoC required to close finding.
True or False
Knowledge Check
APPLY: Before patch on lab VM:
Multiple choice