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187 challenges (Page 8 of 8)

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…

Network SecurityLevel 5★★★★★

Network Analysis - IPv4 Overlapping Fragment Reassembly

The UDP datagram with IPv4 ID 0xbeef in fragments.pcap contains overlapping fragments that overwrite earlier bytes.…

Digital ForensicsLevel 5★★★★★

Extract VM Information from Hypervisor Memory

Analyze the KVM host memory dump `/home/ctfuser/evidence/kvm_host.dump`. The guests are configured like AMD SEV, so…

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…

ProgrammingLevel 5★★★★★

Programming - APT Timeline Analysis

/challenge/events.jsonl combines security logs collected from several hosts and is regenerated with random data every…

ProgrammingLevel 5★★★★★

Programming - AST-Based Vulnerability Detection

/challenge/corpus/*.py are Python sources for code review, regenerated with random data every time the container…

ProgrammingLevel 5★★★★★

Programming - AWS Permission Analysis

/challenge/iam.json holds users, groups and policies and /challenge/s3_objects.json lists S3 objects (bucket, key,…

ProgrammingLevel 5★★★★★

Programming - IoT Firmware Analysis

Analyze the network-camera firmware image firmware.bin, which is generated randomly at every start (it contains no…

ProgrammingLevel 5★★★★★

Programming - Coverage-Guided Fuzzing

Analyze the coverage-guided fuzzer run record coverage-queue.jsonl, which is generated randomly at every start (the…

ProgrammingLevel 5★★★★★

Programming - Zero-Click Message Analysis

messages.ndjson is the traffic log of a messaging app, built from random data at every start (in /challenge). Each…

ProgrammingLevel 5★★★★★

Programming - Timing Attack Data Analysis

timings.csv is raw timing-attack measurements built from random data at every start (in /challenge). Against a server…

Digital ForensicsLevel 5★★★★★

Detect Process Hollowing Attack

From the memory of a Windows host, the process list `process_list.txt` (the PEB view), the VAD list `vad_regions.txt`…

Digital ForensicsLevel 5★★★★★

Detect Tampered Timestamps

`/challenge/mft_timeline.csv` is a timeline exported from the NTFS `$MFT`. It has the `$STANDARD_INFORMATION` (SI) and…

Digital ForensicsLevel 5★★★★★

Decrypt Encrypted iOS Backup

Verify the password of an encrypted iOS backup with a safe iTunes metadata fixture. No real iPhone or backup is used.…

Digital ForensicsLevel 5★★★★★

Create Memory Profile for Unknown Linux Kernel

Analyze `/home/ctfuser/evidence/custom_kernel.dump`, part of the physical memory of a server running an in-house…

Digital ForensicsLevel 5★★★★★

Decode Custom Protocol C&C Communication

The egress proxy recorded the traffic of the compromised endpoint 10.20.4.88. In `/challenge/beacon.log`, each line is…