Challenge list
Web SecurityLevel 3★★★☆☆Web-25. SSTI in the Greeting Card Generator
This greeting card generator is built with Flask/Jinja2 and renders the user's message directly through the template…
ProgrammingLevel 3★★★☆☆Algorithms - BFS Shortest Path Through a Maze
Use BFS to find the shortest path from S to E in data.txt, then submit the UDLR move sequence to challenge.py. A…
Digital ForensicsLevel 3★★★☆☆Detect Brute-Force Attack in Event Logs
Analyze the sshd authentication log `/challenge/auth.log` of the server `kinoco-srv01` and identify the session of the…
General SkillsLevel 3★★★☆☆System Call Tracing - strace Debugging
Analyze `/challenge/strace.log`, a strace recording of the source-less program `/app/mystery_program`. The program…
General SkillsLevel 3★★★☆☆System Log Analysis - journalctl Master
Analyze `/challenge/system.log`, a systemd journal exported in `journalctl -o short` style. Each line reads "timestamp…
General SkillsLevel 3★★★☆☆Network Master - Netcat Reverse Shell
Analyze the prerecorded artifacts/netcat/callback-transcript.log without connecting to any external host; no listener…
Network SecurityLevel 3★★★☆☆Network Analysis - 802.1Q VLAN Separated Traffic
capture.pcap was captured from a mirrored switch trunk port, so frames from several VLANs are mixed together with…
Network SecurityLevel 3★★★☆☆Network Analysis - SNMP Information Leak
A device speaking SNMPv2c with a weak community string (public) was captured returning a GetResponse. Download the…
Network SecurityLevel 3★★★☆☆Network Analysis - SSL Strip Clear-text Credentials
An SSL Strip attack downgraded HTTPS to HTTP, so the victim's credentials traveled in clear text and were captured.…
Network SecurityLevel 3★★★☆☆Network Analysis - Unmasking WebSocket Frames
capture.pcap records WebSocket traffic between a browser and a chat server. Every client-to-server frame is masked…
Network SecurityLevel 3★★★☆☆Network Analysis - Custom Protocol Decoding
Traffic from a system using a small custom binary protocol was captured. Download the packet capture (traffic.pcap),…
General SkillsLevel 3★★★☆☆Performance Analysis - Find the Resource Hog
Analyze the server snapshot `/challenge/metrics.log`. The first half is a top-style process table (%CPU is column 9,…
ProgrammingLevel 3★★★☆☆Programming - SQLite Evidence Database
evidence.db is a SQLite database built from random data at every start (in /challenge, with the tables users /…
ProgrammingLevel 3★★★☆☆Programming - Web Scraping Graph Traversal
site.json is a crawl result built from random data at every start (in /challenge). It holds the start and target URLs…
ProgrammingLevel 3★★★☆☆Programming - ZIP Password Recovery
secret.zip is a ZIP encrypted with ZipCrypto (the traditional PKWARE cipher), created at every start (in /challenge,…
ProgrammingLevel 3★★★☆☆Programming - Packet Log Analysis
capture.txt is a packet log created at every start (in /challenge). Each line is one flow of the form flow=<name>…
ProgrammingLevel 3★★★☆☆Programming - Multithreaded Result Reassembly
Analyze the parallel-job result log worker-results.jsonl, which is generated randomly at every start. Each slot was…
ProgrammingLevel 3★★★☆☆Programming - Memory Dump Analysis
Analyze the synthetic memory image memory.img, which is generated randomly at every start. In the heap table at the…
ProgrammingLevel 3★★★☆☆Programming - Known-Plaintext Attack
Analyze the evidence files ciphertext.b64 and known.txt, which are generated randomly at every start. ciphertext.b64…
ProgrammingLevel 3★★★☆☆Programming - Custom Protocol Parsing
protocol.bin is a binary capture created at every start (in /challenge): several length-prefixed frames that begin…
ProgrammingLevel 3★★★☆☆Programming - Image Steganography
image.pgm is a text-format (P2) PGM image created at every start (in /challenge). Collect the least significant bit…
Digital ForensicsLevel 3★★★☆☆Find Suspicious Network Connections in Memory
From the memory image of the compromised host `kinoco-app03`, the socket table `/challenge/netstat_dump.txt` and the…
Digital ForensicsLevel 3★★★☆☆Recover Executed Commands from Memory
Analyze the memory-string record `memdump.txt` to recover the executed command history. Decode the Base64 strings and…
Digital ForensicsLevel 3★★★☆☆Recover Deleted SQLite Records
You are given the SQLite database `/challenge/app.db` of the internal chat tool "kinoco-msg". The body of a message…