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Advisories

Shuffle Master Deck Mate 1 Unauthenticated EEPROM Firmware Execution

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severity
high
date
Affecting

  • A defined firmware range is unavailable.

  • Deck Mate 1 is no longer supported.

CWE
  • CWE-347 Improper Verification of Cryptographic Signature
  • CWE-1326 Missing Immutable Root of Trust in Hardware
CVSS
7
CVSS V4 Vector
CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Credit
Joseph Tartaro of IOActive, Enrique Nissim of IOActive, Ethan Shackelford of IOActive
Description
Deck Mate 1 executes firmware directly from an external EEPROM without verifying authenticity or integrity. An attacker with physical access can replace or reflash the EEPROM to run arbitrary code that persists across reboots. Because this design predates modern secure-boot or signed-update mechanisms, affected systems should be physically protected or retired from service. The vendor has not indicated that firmware updates are available for this legacy model.

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