cvelist/2020/15xxx/CVE-2020-15093.json

{
    "CVE_data_meta": {
        "ASSIGNER": "security-advisories@github.com",
        "ID": "CVE-2020-15093",
        "STATE": "PUBLIC",
        "TITLE": "Improper verification of signature threshold in tough"
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "product": {
                        "product_data": [
                            {
                                "product_name": "tough",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_value": "< 0.7.1"
                                        }
                                    ]
                                }
                            }
                        ]
                    },
                    "vendor_name": "awslabs"
                }
            ]
        }
    },
    "data_format": "MITRE",
    "data_type": "CVE",
    "data_version": "4.0",
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "The tough library (Rust/crates.io) prior to version 0.7.1 does not properly verify the threshold of cryptographic signatures. It allows an attacker to duplicate a valid signature in order to circumvent TUF requiring a minimum threshold of unique signatures before the metadata is considered valid. A fix is available in version 0.7.1. CVE-2020-6174 is assigned to the same vulnerability in the TUF reference implementation."
            }
        ]
    },
    "impact": {
        "cvss": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 8.6,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N",
            "version": "3.1"
        }
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "CWE-347: Improper Verification of Cryptographic Signature"
                    }
                ]
            }
        ]
    },
    "references": {
        "reference_data": [
            {
                "name": "https://github.com/awslabs/tough/security/advisories/GHSA-5q2r-92f9-4m49",
                "refsource": "CONFIRM",
                "url": "https://github.com/awslabs/tough/security/advisories/GHSA-5q2r-92f9-4m49"
            },
            {
                "name": "https://crates.io/crates/tough",
                "refsource": "MISC",
                "url": "https://crates.io/crates/tough"
            },
            {
                "name": "https://github.com/theupdateframework/tuf/pull/974",
                "refsource": "MISC",
                "url": "https://github.com/theupdateframework/tuf/pull/974"
            },
            {
                "name": "https://github.com/theupdateframework/tuf/commit/2977188139d065ff3356c3cb4aec60c582b57e0e",
                "refsource": "MISC",
                "url": "https://github.com/theupdateframework/tuf/commit/2977188139d065ff3356c3cb4aec60c582b57e0e"
            }
        ]
    },
    "source": {
        "advisory": "GHSA-5q2r-92f9-4m49",
        "discovery": "UNKNOWN"
    }
}