cvelist/2023/33xxx/CVE-2023-33242.json

{
    "data_version": "4.0",
    "data_type": "CVE",
    "data_format": "MITRE",
    "CVE_data_meta": {
        "ID": "CVE-2023-33242",
        "ASSIGNER": "disclosures@halborn.com",
        "STATE": "PUBLIC"
    },
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "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."
            }
        ]
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "Private Key Exfiltration"
                    }
                ]
            }
        ]
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "vendor_name": "Lindell TSS Implementations",
                    "product": {
                        "product_data": [
                            {
                                "product_name": "Wallet",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_affected": "=",
                                            "version_value": "17"
                                        }
                                    ]
                                }
                            }
                        ]
                    }
                }
            ]
        }
    },
    "references": {
        "reference_data": [
            {
                "url": "https://www.fireblocks.com/blog/lindell17-abort-vulnerability-technical-report/",
                "refsource": "MISC",
                "name": "https://www.fireblocks.com/blog/lindell17-abort-vulnerability-technical-report/"
            },
            {
                "url": "https://github.com/fireblocks-labs/mpc-ecdsa-attacks-23",
                "refsource": "MISC",
                "name": "https://github.com/fireblocks-labs/mpc-ecdsa-attacks-23"
            },
            {
                "url": "https://github.com/fireblocks-labs/zengo-lindell17-exploit-poc",
                "refsource": "MISC",
                "name": "https://github.com/fireblocks-labs/zengo-lindell17-exploit-poc"
            },
            {
                "url": "https://eprint.iacr.org/2017/552.pdf",
                "refsource": "MISC",
                "name": "https://eprint.iacr.org/2017/552.pdf"
            }
        ]
    },
    "generator": {
        "engine": "Vulnogram 0.1.0-dev"
    },
    "source": {
        "discovery": "UNKNOWN"
    },
    "credits": [
        {
            "lang": "en",
            "value": "Fireblocks Research, Nikolaos Makriyannis, Oren Yomtov"
        }
    ],
    "impact": {
        "cvss": [
            {
                "attackComplexity": "LOW",
                "attackVector": "NETWORK",
                "availabilityImpact": "NONE",
                "baseScore": 9.6,
                "baseSeverity": "CRITICAL",
                "confidentialityImpact": "HIGH",
                "integrityImpact": "HIGH",
                "privilegesRequired": "LOW",
                "scope": "CHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N",
                "version": "3.1"
            }
        ]
    }
}