thinQtankLABS

Detection Engineering & Incident Response: CVE-2026-10520

Respond to a Ivanti Sentry OS-command-injection compromise (CVE-2026-10520). Reconstruct the timeline from the access and service logs, see how shell metacharacters in a host parameter ran commands as root, find the rogue root-cron persistence, engineer a detection rule for the injection pattern, then contain by restricting the interface, eradicate, upgrade, verify and report.

Intermediate 21 guided steps 6 tasks About 75 minutes Runs in your browser

Skills you will practice

  • Log analysis
  • detection and IR; Incident-handling lifecycle; Command injection and IOCs; Security Operations domain

Certifications this lab maps to

This lab builds hands-on skills that appear on these certification exams. thinQtank Learning runs instructor-led training camps for each — click one to see upcoming classes.

CompTIA CySA+ CS0-003 Log analysis, detection and IR Training at thinQtank Learning EC-Council Certified Incident Handler E|CIH Incident-handling lifecycle Training at thinQtank Learning EC-Council Certified Ethical Hacker CEH Command injection and IOCs Training at thinQtank Learning ISC2 CISSP CISSP Security Operations domain Training at thinQtank Learning
Part of these certification lab packages: CySA+ CS0-003 CISSP Certified Ethical Hacker (CEH) CEH Certified Incident Handler (E|CIH) E|CIH GCIH GCIH GCIA GCIA

The scenario

An internet-facing Ivanti Sentry appliance (CVE-2026-10520 open) logged a host parameter with shell metacharacters, then it ran OS commands as root. You are the responder. Classify it.

What you will do

  1. Open and classify the incident4 steps

    Open the incident · Read the alert · Read the ticket · Classify it

  2. Reconstruct the timeline3 steps

    Pull the attacker’s requests · Correlate the service log · What made RCE possible?

  3. Impact and persistence3 steps

    Inspect the rogue cron · What persistence? · Record IOCs

  4. Engineer a detection rule4 steps

    Study the sample · Write a rule · Test and tune · Why not flag the hyphen?

  5. Contain, eradicate, verify5 steps

    Contain: restrict the management interface · Eradicate the persistence · Upgrade the appliance · Verify the host · …

  6. Report2 steps

    Write the report · What must be assumed?

How this lab works

A real Linux-style console. Commands run against real files, so hashes, hex dumps and comparisons give real results.

A file browser where you can place evidence into the lab, either the file provided or one of your own.

Reset a single step, a whole task or the entire lab. The environment is rebuilt so you can try again cleanly.

Progress saves after every step. Close the tab and come back later; your files and answers are waiting.