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67 challenges (Page 3 of 3)

ProgrammingLevel 4★★★★☆

Programming - Buffer Overflow Crash Analysis

Analyze the crash reports crash_01.txt to crash_06.txt, which are generated randomly at every start (they contain no…

ProgrammingLevel 4★★★★☆

Programming - Fuzzing Result Analysis

Analyze the fuzzing result log fuzz-results.log, which is generated randomly at every start (inputs are merely stored;…

ProgrammingLevel 4★★★★☆

Programming - Blockchain Event Reassembly

/challenge/blocks.json is a list of blocks from an offline development chain, regenerated with random data every time…

ProgrammingLevel 4★★★★☆

Programming - Rootkit View Diffing

proc_ps.txt (the userland ps output) and proc_kernel.txt (the result of walking the kernel task list directly) are…

ProgrammingLevel 4★★★★☆

Programming - Anomaly Detection

/challenge/requests.csv is a web API access log that is regenerated with random data every time the container starts…

ProgrammingLevel 4★★★★☆

Programming - Pentest Finding Analysis

findings.json is a scan result built from random data at every start (in /challenge). It has entry (edge-gw),…

ProgrammingLevel 4★★★★☆

Programming - Async Scan Result Analysis

/challenge/scan-events.jsonl is the event log of an asynchronous port scanner, regenerated with random data every time…

CryptographyLevel 4★★★★☆

Cryptanalysis - DSA Nonce Reuse Key Recovery

/challenge/signatures.json, created with fresh keys at every start, holds the DSA public parameters (p of 1024 bits, q…

CryptographyLevel 4★★★★☆

Cryptanalysis - Wiener's Attack on RSA

An embedded-device team made the RSA private exponent d very small to speed up decryption. The public exponent e in…

CryptographyLevel 4★★★★☆

Cryptanalysis - Recovering an LCG's Hidden Parameters

A service generated both session tokens and an encryption keystream from a linear congruential generator x_{k+1} =…

ProgrammingLevel 5★★★★★

Advanced Python - Concurrent Event DAG Correlation

events.jsonl interleaves randomly ordered events from many services and traces. Starting from the marked auth.failed…

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…

CryptographyLevel 5★★★★★

Cryptanalysis - RSA e=3 Broadcast Attack

broadcast.json contains the same plaintext encrypted with unpadded RSA e=3 under three pairwise-coprime moduli.…