Category: Hackvent 2024

Dive into the 2024 Hackvent CTF challenges, part of the annual festive security event hosted by Hacking-Lab.

Posts

Showing 21 posts in this category.

Hackvent 2024: Day 24

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A long MP3 audio file was reversed and sped up to restore its original form, revealing a hidden flag spoken by a TTS voice partway through.

Hackvent 2024: Hidden Easy

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Uncover hidden flags in images with steganography! Using Aperisolve, we found a hidden flag in the LSB of the blue channel through RGB analysis.

Hackvent 2024: Day 23

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Decode a mysterious pattern with the Ogham language to uncover a hidden secret flag.

Hackvent 2024: Day 22

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Discover how to uncover hidden secrets in GitHub repositories by exploring remote refs and deleted commits in this engaging challenge.

Hackvent 2024: Day 21

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Brute-force a timestamp on a Pastebin-like website, decrypt hidden text using an obfuscated JS function, and uncover the flag

Hackvent 2024: Day 19

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Discover how to find a hidden flag in a virtual machine by visualising disk errors with ddrescue, revealing hidden information from damaged sectors.

Hackvent 2024: Day 18

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Learn how to extract hidden data from an image by analysing the LSB of RGB channels and creating a QR code using bit manipulation techniques.

Hackvent 2024: Day 17

Hackvent 202460
Discover vulnerabilities in a custom RSA and AES implementation, exploit APIs to elevate to admin, and retrieve the hidden flag through clever cryptographic techniques.

Hackvent 2024: Day 16

Hackvent 202460
Learn how to solve an ECDSA biased-k lattice attack to uncover the original private key and hidden flag using MSB manipulation and brute force techniques.

Hackvent 2024: Hidden Hard

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Exploring Chrome's Favicon SQLite database, we found a raw favicon blob linked to a hidden URL. Scanning it revealed the hidden flag!

Hackvent 2024: Day 15

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Help Blitzen, Prancer, Comet, and Dancer crack passwords, decode hidden files, and solve cryptographic puzzles as they prepare for their grand symphony!

Hackvent 2024: Day 10

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Explore how to reverse-engineer a ransomware binary, bypass anti-VM checks, decrypt AES-encrypted files, and exploit web vulnerabilities to recover encrypted files.

Hackvent 2024: Day 9

Hackvent 202470
Explore a fascinating journey of network traffic analysis, Docker container inspection, Python code deobfuscation, and Hashicorp Vault setup to uncover hidden secrets.

Hackvent 2024: Day 7

Hackvent 202440
Solve a maze with Python using pathfinding and dynamic programming to collect all gifts and reach the exit in the fewest moves.

Hackvent 2024: Day 6

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Learn how to extract flags from a Windows system running in Wine using netcat, VBS scripts, and hex editors to solve a challenging cybersecurity puzzle.

Hackvent 2024: Hidden Medium

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Using Volatility 3 and a custom Notepad plugin, we extracted unsaved text from memory, revealing a password. Steghide then uncovered a hidden flag in a QR code.

Hackvent 2024: Day 5

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Explore how to analyze a 2GB memory dump, recover hidden files, crack passwords with Hashcat, and uncover secrets using forensic tools in this detailed guide.

Hackvent 2024: Day 4

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Learn how to decode a messed-up QR code using Python by analysing the GIF colour palette table and extracting hidden data for a scannable result.

Hackvent 2024: Day 3

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Explore how a timing attack reveals admin credentials, leading to clever exploitation of path traversal to uncover the flag.

Hackvent 2024: Day 2

Hackvent 202450
Decode EAN-8 barcodes with missing digits using Python, checksum validation, and clever mapping to uncover the hidden flag in this Hackvent challenge!

Hackvent 2024: Day 1

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Learn how a QR code puzzle was cracked by tweaking the global GIF palette, revealing a hidden QR code, and decoding the daily flag.