{ "id": "CVE-2023-27892", "sourceIdentifier": "cve@mitre.org", "published": "2023-05-02T21:15:09.337", "lastModified": "2025-01-30T17:15:13.877", "vulnStatus": "Modified", "cveTags": [], "descriptions": [ { "lang": "en", "value": "Insufficient length checks in the ShapeShift KeepKey hardware wallet firmware before 7.7.0 allow a global buffer overflow via crafted messages. Flaws in cf_confirmExecTx() in ethereum_contracts.c can be used to reveal arbitrary microcontroller memory on the device screen or crash the device. With physical access to a PIN-unlocked device, attackers can extract the BIP39 mnemonic secret from the hardware wallet." } ], "metrics": { "cvssMetricV31": [ { "source": "cve@mitre.org", "type": "Secondary", "cvssData": { "version": "3.1", "vectorString": "CVSS:3.1/AV:P/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N", "baseScore": 3.8, "baseSeverity": "LOW", "attackVector": "PHYSICAL", "attackComplexity": "HIGH", "privilegesRequired": "HIGH", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "availabilityImpact": "NONE" }, "exploitabilityScore": 0.2, "impactScore": 3.6 }, { "source": "nvd@nist.gov", "type": "Primary", "cvssData": { "version": "3.1", "vectorString": "CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:H", "baseScore": 5.7, "baseSeverity": "MEDIUM", "attackVector": "PHYSICAL", "attackComplexity": "HIGH", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "availabilityImpact": "HIGH" }, "exploitabilityScore": 0.5, "impactScore": 5.2 } ] }, "weaknesses": [ { "source": "nvd@nist.gov", "type": "Primary", "description": [ { "lang": "en", "value": "CWE-125" } ] }, { "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "description": [ { "lang": "en", "value": "CWE-120" } ] } ], "configurations": [ { "operator": "AND", "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:o:shapeshift:keepkey_firmware:*:*:*:*:*:*:*:*", "versionStartIncluding": "7.5.2", "versionEndExcluding": "7.7.0", "matchCriteriaId": "A1C9272A-8363-487C-909D-4D7E7A1929D4" } ] }, { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": false, "criteria": "cpe:2.3:h:shapeshift:keepkey:-:*:*:*:*:*:*:*", "matchCriteriaId": "663CE48F-F657-40AA-8954-EADA31C9DFB1" } ] } ] } ], "references": [ { "url": "https://blog.inhq.net/posts/keepkey-CVE-2023-27892/", "source": "cve@mitre.org", "tags": [ "Exploit", "Third Party Advisory" ] }, { "url": "https://github.com/keepkey/keepkey-firmware/pull/337", "source": "cve@mitre.org", "tags": [ "Patch" ] }, { "url": "https://blog.inhq.net/posts/keepkey-CVE-2023-27892/", "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Exploit", "Third Party Advisory" ] }, { "url": "https://github.com/keepkey/keepkey-firmware/pull/337", "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Patch" ] } ] }