cvelist/2020/5xxx/CVE-2020-5206.json

{
    "CVE_data_meta": {
        "ASSIGNER": "security-advisories@github.com",
        "ID": "CVE-2020-5206",
        "STATE": "PUBLIC",
        "TITLE": "Authentication Bypass For Endpoints With Anonymous Access in OpenCast"
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "product": {
                        "product_data": [
                            {
                                "product_name": "opencast",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_value": "< 7.6"
                                        },
                                        {
                                            "version_value": ">= 8.0, < 8.1"
                                        }
                                    ]
                                }
                            }
                        ]
                    },
                    "vendor_name": "opencast"
                }
            ]
        }
    },
    "data_format": "MITRE",
    "data_type": "CVE",
    "data_version": "4.0",
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "In Opencast before 7.6 and 8.1, using a remember-me cookie with an arbitrary username can cause Opencast to assume proper authentication for that user even if the remember-me cookie was incorrect given that the attacked endpoint also allows anonymous access. This way, an attacker can, for example, fake a remember-me token, assume the identity of the global system administrator and request non-public content from the search service without ever providing any proper authentication. This problem is fixed in Opencast 7.6 and Opencast 8.1"
            }
        ]
    },
    "impact": {
        "cvss": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 8.7,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N",
            "version": "3.1"
        }
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "CWE-285: Improper Authorization"
                    }
                ]
            }
        ]
    },
    "references": {
        "reference_data": [
            {
                "name": "https://github.com/opencast/opencast/security/advisories/GHSA-vmm6-w4cf-7f3x",
                "refsource": "CONFIRM",
                "url": "https://github.com/opencast/opencast/security/advisories/GHSA-vmm6-w4cf-7f3x"
            },
            {
                "name": "https://github.com/opencast/opencast/commit/b157e1fb3b35991ca7bf59f0730329fbe7ce82e8",
                "refsource": "MISC",
                "url": "https://github.com/opencast/opencast/commit/b157e1fb3b35991ca7bf59f0730329fbe7ce82e8"
            }
        ]
    },
    "source": {
        "advisory": "GHSA-vmm6-w4cf-7f3x",
        "discovery": "UNKNOWN"
    }
}