{ "id": "CVE-2023-33242", "sourceIdentifier": "disclosures@halborn.com", "published": "2023-08-09T22:15:11.180", "lastModified": "2024-11-21T08:05:13.993", "vulnStatus": "Modified", "cveTags": [], "descriptions": [ { "lang": "en", "value": "Crypto wallets implementing the Lindell17 TSS protocol might allow an attacker to extract the full ECDSA private key by exfiltrating a single bit in every signature attempt (256 in total) because of not adhering to the paper's security proof's assumption regarding handling aborts after a failed signature." } ], "metrics": { "cvssMetricV31": [ { "source": "disclosures@halborn.com", "type": "Secondary", "cvssData": { "version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N", "baseScore": 9.6, "baseSeverity": "CRITICAL", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "CHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "NONE" }, "exploitabilityScore": 3.1, "impactScore": 5.8 }, { "source": "nvd@nist.gov", "type": "Primary", "cvssData": { "version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N", "baseScore": 8.1, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "NONE" }, "exploitabilityScore": 2.8, "impactScore": 5.2 } ] }, "weaknesses": [ { "source": "nvd@nist.gov", "type": "Primary", "description": [ { "lang": "en", "value": "CWE-74" } ] } ], "configurations": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:a:lindell17_project:lindell17:-:*:*:*:*:*:*:*", "matchCriteriaId": "BCB206C8-258F-4DAD-AAF2-D38153F2C7A4" } ] } ] } ], "references": [ { "url": "https://eprint.iacr.org/2017/552.pdf", "source": "disclosures@halborn.com", "tags": [ "Exploit", "Third Party Advisory" ] }, { "url": "https://github.com/fireblocks-labs/mpc-ecdsa-attacks-23", "source": "disclosures@halborn.com", "tags": [ "Exploit" ] }, { "url": "https://github.com/fireblocks-labs/zengo-lindell17-exploit-poc", "source": "disclosures@halborn.com", "tags": [ "Exploit" ] }, { "url": "https://www.fireblocks.com/blog/lindell17-abort-vulnerability-technical-report/", "source": "disclosures@halborn.com", "tags": [ "Third Party Advisory" ] }, { "url": "https://eprint.iacr.org/2017/552.pdf", "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Exploit", "Third Party Advisory" ] }, { "url": "https://github.com/fireblocks-labs/mpc-ecdsa-attacks-23", "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Exploit" ] }, { "url": "https://github.com/fireblocks-labs/zengo-lindell17-exploit-poc", "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Exploit" ] }, { "url": "https://www.fireblocks.com/blog/lindell17-abort-vulnerability-technical-report/", "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Third Party Advisory" ] } ] }