cvelist/2020/26xxx/CVE-2020-26290.json

{
    "CVE_data_meta": {
        "ASSIGNER": "security-advisories@github.com",
        "ID": "CVE-2020-26290",
        "STATE": "PUBLIC",
        "TITLE": "Critical security issues in XML encoding in Dex"
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "product": {
                        "product_data": [
                            {
                                "product_name": "dex",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_value": "< 2.27.0"
                                        }
                                    ]
                                }
                            }
                        ]
                    },
                    "vendor_name": "dexidp"
                }
            ]
        }
    },
    "data_format": "MITRE",
    "data_type": "CVE",
    "data_version": "4.0",
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "Dex is a federated OpenID Connect provider written in Go. In Dex before version 2.27.0 there is a critical set of vulnerabilities which impacts users leveraging the SAML connector. The vulnerabilities enables potential signature bypass due to issues with XML encoding in the underlying Go library. The vulnerabilities have been addressed in version 2.27.0 by using the xml-roundtrip-validator from Mattermost (see related references)."
            }
        ]
    },
    "impact": {
        "cvss": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 9.3,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/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/mattermost/xml-roundtrip-validator/blob/master/advisories/unstable-directives.md",
                "refsource": "MISC",
                "url": "https://github.com/mattermost/xml-roundtrip-validator/blob/master/advisories/unstable-directives.md"
            },
            {
                "name": "https://github.com/mattermost/xml-roundtrip-validator/blob/master/advisories/unstable-elements.md",
                "refsource": "MISC",
                "url": "https://github.com/mattermost/xml-roundtrip-validator/blob/master/advisories/unstable-elements.md"
            },
            {
                "name": "https://github.com/mattermost/xml-roundtrip-validator/blob/master/advisories/unstable-attributes.md",
                "refsource": "MISC",
                "url": "https://github.com/mattermost/xml-roundtrip-validator/blob/master/advisories/unstable-attributes.md"
            },
            {
                "name": "https://mattermost.com/blog/coordinated-disclosure-go-xml-vulnerabilities/",
                "refsource": "MISC",
                "url": "https://mattermost.com/blog/coordinated-disclosure-go-xml-vulnerabilities/"
            },
            {
                "name": "https://github.com/dexidp/dex/security/advisories/GHSA-m9hp-7r99-94h5",
                "refsource": "CONFIRM",
                "url": "https://github.com/dexidp/dex/security/advisories/GHSA-m9hp-7r99-94h5"
            },
            {
                "name": "https://github.com/russellhaering/goxmldsig/security/advisories/GHSA-q547-gmf8-8jr7",
                "refsource": "MISC",
                "url": "https://github.com/russellhaering/goxmldsig/security/advisories/GHSA-q547-gmf8-8jr7"
            },
            {
                "name": "https://github.com/dexidp/dex/commit/324b1c886b407594196113a3dbddebe38eecd4e8",
                "refsource": "MISC",
                "url": "https://github.com/dexidp/dex/commit/324b1c886b407594196113a3dbddebe38eecd4e8"
            },
            {
                "name": "https://github.com/dexidp/dex/releases/tag/v2.27.0",
                "refsource": "MISC",
                "url": "https://github.com/dexidp/dex/releases/tag/v2.27.0"
            }
        ]
    },
    "source": {
        "advisory": "GHSA-m9hp-7r99-94h5",
        "discovery": "UNKNOWN"
    }
}