{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2025-34500", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "state": "PUBLISHED", "assignerShortName": "VulnCheck", "dateReserved": "2025-04-15T19:15:22.611Z", "datePublished": "2025-10-24T23:02:29.851Z", "dateUpdated": "2025-10-24T23:02:29.851Z"}, "containers": {"cna": {"affected": [{"defaultStatus": "unknown", "modules": ["Update/decryption utility and package verification"], "product": "Deck Mate 2", "vendor": "Light & Wonder, Inc. / SHFL Entertainment, Inc. / Shuffle Master, Inc.", "versions": [{"lessThan": "all known versions prior to 2025-10-23", "status": "affected", "version": "0", "versionType": "custom"}]}], "credits": [{"lang": "en", "type": "finder", "value": "Joseph Tartaro of IOActive"}, {"lang": "en", "type": "finder", "value": "Enrique Nissim of IOActive"}, {"lang": "en", "type": "finder", "value": "Ethan Shackelford of IOActive"}], "descriptions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "Deck Mate 2's firmware update mechanism accepts packages without cryptographic signature verification, encrypts them with a single hard-coded AES key shared across devices, and uses a truncated HMAC for integrity validation. Attackers with access to the update interface - typically via the unit's USB update port - can craft or modify firmware packages to execute arbitrary code as root, allowing persistent compromise of the device's integrity and deck randomization process. Physical or on-premises access remains the most likely attack path, though network-exposed or telemetry-enabled deployments could theoretically allow remote exploitation if misconfigured. The vendor confirmed that firmware updates have been issued to correct these update-chain weaknesses and that USB update access has been disabled on affected units.<br>"}], "value": "Deck Mate 2's firmware update mechanism accepts packages without cryptographic signature verification, encrypts them with a single hard-coded AES key shared across devices, and uses a truncated HMAC for integrity validation. Attackers with access to the update interface - typically via the unit's USB update port - can craft or modify firmware packages to execute arbitrary code as root, allowing persistent compromise of the device's integrity and deck randomization process. Physical or on-premises access remains the most likely attack path, though network-exposed or telemetry-enabled deployments could theoretically allow remote exploitation if misconfigured. The vendor confirmed that firmware updates have been issued to correct these update-chain weaknesses and that USB update access has been disabled on affected units."}], "metrics": [{"cvssV4_0": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "PHYSICAL", "baseScore": 7, "baseSeverity": "HIGH", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "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", "version": "4.0", "vulnAvailabilityImpact": "HIGH", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "problemTypes": [{"descriptions": [{"cweId": "CWE-321", "description": "CWE-321 Use of Hard-coded Cryptographic Key", "lang": "en", "type": "CWE"}]}, {"descriptions": [{"cweId": "CWE-327", "description": "CWE-327 Use of a Broken or Risky Cryptographic Algorithm", "lang": "en", "type": "CWE"}]}, {"descriptions": [{"cweId": "CWE-347", "description": "CWE-347 Improper Verification of Cryptographic Signature", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2025-10-24T23:02:29.851Z"}, "references": [{"tags": ["technical-description", "exploit"], "url": "https://www.ioactive.com/wp-content/uploads/2025/05/IOActive-card-shuffler-security.pdf"}, {"tags": ["media-coverage"], "url": "https://www.wired.com/story/card-shuffler-hack/"}, {"tags": ["media-coverage"], "url": "https://www.wired.com/story/how-hacked-card-shufflers-allegedly-enabled-a-mob-fueled-poker-scam-that-rocked-the-nba/"}, {"tags": ["third-party-advisory"], "url": "https://www.vulncheck.com/advisories/shuffle-master-deck-mate-2-insecure-update-chain"}], "solutions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "<span style=\"background-color: rgb(255, 255, 255);\">Light &amp; Wonder reports that it has deployed firmware updates addressing the update-chain weaknesses IOActive described (including fixes to the cryptographic integrity checks) and has disabled the USB update port on affected Deck Mate 2 units.</span><br>"}], "value": "Light & Wonder reports that it has deployed firmware updates addressing the update-chain weaknesses IOActive described (including fixes to the cryptographic integrity checks) and has disabled the USB update port on affected Deck Mate 2 units."}], "source": {"discovery": "UNKNOWN"}, "title": "Shuffle Master Deck Mate 2 Insecure Update Chain", "x_generator": {"engine": "Vulnogram 0.4.0"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "Deck Mate 2's firmware update mechanism accepts packages without cryptographic signature verification, encrypts them with a single hard-coded AES key shared across devices, and uses a truncated HMAC for integrity validation. Attackers with access to the update interface - typically via the unit's USB update port - can craft or modify firmware packages to execute arbitrary code as root, allowing persistent compromise of the device's integrity and deck randomization process. Physical or on-premises access remains the most likely attack path, though network-exposed or telemetry-enabled deployments could theoretically allow remote exploitation if misconfigured. The vendor confirmed that firmware updates have been issued to correct these update-chain weaknesses and that USB update access has been disabled on affected units."}], "id": "CVE-2025-34500", "lastModified": "2025-10-24T23:15:46.620", "metrics": {"cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "PHYSICAL", "availabilityRequirement": "NOT_DEFINED", "baseScore": 7.0, "baseSeverity": "HIGH", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "version": "4.0", "vulnAvailabilityImpact": "HIGH", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "disclosure@vulncheck.com", "type": "Secondary"}]}, "published": "2025-10-24T23:15:46.620", "references": [{"source": "disclosure@vulncheck.com", "url": "https://www.ioactive.com/wp-content/uploads/2025/05/IOActive-card-shuffler-security.pdf"}, {"source": "disclosure@vulncheck.com", "url": "https://www.vulncheck.com/advisories/shuffle-master-deck-mate-2-insecure-update-chain"}, {"source": "disclosure@vulncheck.com", "url": "https://www.wired.com/story/card-shuffler-hack/"}, {"source": "disclosure@vulncheck.com", "url": "https://www.wired.com/story/how-hacked-card-shufflers-allegedly-enabled-a-mob-fueled-poker-scam-that-rocked-the-nba/"}], "sourceIdentifier": "disclosure@vulncheck.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-321"}, {"lang": "en", "value": "CWE-327"}, {"lang": "en", "value": "CWE-347"}], "source": "disclosure@vulncheck.com", "type": "Secondary"}]}

{}

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