mfcuk ☆
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Description:
MiFare Classic Universal toolKit
Type: Formula  |  Tracked Since: Dec 28, 2025
Links: Homepage  |  formulae.brew.sh
Category: Security
Tags: rfid security pentesting mifare hardware cli
Install: brew install mfcuk
About:
Mfcuk is a command-line tool for interacting with MiFare Classic RFID chips. It provides advanced diagnostic and recovery capabilities, including the ability to detect and exploit weak authentication keys. The tool is essential for security researchers performing penetration testing on access control systems.
Key Features:
  • Detects and exploits weak key authentication vulnerabilities
  • Performs hardnested attacks for key recovery
  • Reads and dumps card memory sectors
  • Supports direct communication with RFID readers via PC/SC
  • Command-line interface for scripting and automation
Use Cases:
  • Security auditing of physical access control systems
  • Penetration testing of RFID-based authentication
  • Recovering data from MiFare Classic cards with lost keys
  • Educational research on RFID security vulnerabilities
Alternatives:
  • mfoc – mfoc focuses on nested attack key recovery, while mfcuk offers more advanced hardnested attacks and diagnostics
  • nfc-tools – Broader NFC toolkit with libnfc, whereas mfcuk specializes specifically in MiFare Classic vulnerabilities
Version History
Detected Version Rev Change Commit
Sep 16, 2025 2:32am 1 VERSION_BUMP fce69a13
Sep 14, 2024 3:20am 1 VERSION_BUMP 15292eb9
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