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113 challenges (Page 5 of 5)

General SkillsLevel 4★★★★☆

Custom Tool Development - Web Directory Scanner

Analyze the locally generated artifacts/scanner/directory-report.ndjson instead of scanning a live website. The…

General SkillsLevel 4★★★★☆

Network Tunneling - SSH Port Forwarding

Practice SSH local port forwarding inside one container. SSH listens on 127.0.0.1:22 and the internal service uses…

General SkillsLevel 4★★★★☆

Encrypted Communication - GPG Public Key Cryptography

Practice GnuPG decryption. Import every private key under `/challenge/keys/` and decrypt each ciphertext under…

General SkillsLevel 4★★★★☆

Vulnerability Scanning - Advanced Nmap NSE

The results of running `nmap -sV -sC --script vuln` against the internal subnet `10.66.13.0/24` are in…

General SkillsLevel 4★★★★☆

Static Analysis - Code Vulnerability Scanning

The Python source of an internal notes app is in `/challenge/src/`. The nine lines flagged by an earlier…

General SkillsLevel 5★★★★★

APT Simulation - Full Breach Scenario

This is not an attack exercise but a blue-team task of reading the logs of an incident that already happened. From the…

General SkillsLevel 5★★★★★

Bug Bounty Practice - Vulnerability Discovery Master

Analyze the fixed artifacts/bug-bounty/triage-report.json instead of testing a live application. A chained report has…

LinuxLevel 5★★★★★

Linux-eBPF Rootkit. Unmasking a Hidden Process

This challenge safely recreates eBPF-rootkit investigation as offline evidence analysis. Without loading eBPF, tell…

LinuxLevel 5★★★★★

Linux-Kernel Exploit. Rewriting a Read-Only File with Dirty COW

This challenge models mmap, MAP_PRIVATE, and madvise—the ingredients used by Dirty COW (CVE-2016-5195)—as a safe,…

General SkillsLevel 5★★★★★

Red Teaming - Custom C2 Framework

No C2 server, agent, socket communication, or command execution is started. Analyze the local…

General SkillsLevel 5★★★★★

Anti-Forensics - Evidence Elimination

After the intrusion the attacker covered their tracks: they cut a time window out of `/challenge/auth_syslog.log` (the…

General SkillsLevel 5★★★★★

Custom Malware - Stealth Techniques

No executable malware, injection, or evasion capability is included. Analyze the inert configuration sample…

General SkillsLevel 5★★★★★

Cloud Pentesting - AWS Multi-Stage Attack

Do not use AWS credentials, a metadata endpoint, or Lambda. Analyze the local artifacts/aws/cloudtrail-chain.jsonl…

General SkillsLevel 5★★★★★

Container Escape - Kubernetes Privilege Escalation

Do not use a Kubernetes API, host mount, privileged container, or escape. Read the static…

General SkillsLevel 5★★★★★

Supply Chain Attack - Dependency Exploitation

Audit the dependency records of the Node.js app `kinoco-webapp`: `/challenge/dependencies.txt` (the dependencies…

General SkillsLevel 5★★★★★

Pivoting - Multi-Tier Network Penetration

Analyze the prerecorded artifacts/pivot/topology.json without creating routes, tunnels, proxies, or remote services.…

General SkillsLevel 5★★★★★

Fuzzing Basics - 0-day Discovery

Analyze the prerecorded crash set without running a fuzzer or target binary. artifacts/fuzzing/triage.csv lists each…