{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.1",
    "cveMetadata": {
        "cveId": "CVE-2023-28998",
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "state": "PUBLISHED",
        "assignerShortName": "GitHub_M",
        "dateReserved": "2023-03-29T17:39:16.141Z",
        "datePublished": "2023-04-04T12:45:42.156Z",
        "dateUpdated": "2024-08-02T13:51:38.943Z"
    },
    "containers": {
        "cna": {
            "title": "Nextcloud Desktop client misbehaves with E2EE when the server returns empty list of metadata keys",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-325",
                            "lang": "en",
                            "description": "CWE-325: Missing Cryptographic Step",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV3_1": {
                        "attackComplexity": "LOW",
                        "attackVector": "PHYSICAL",
                        "availabilityImpact": "NONE",
                        "baseScore": 6.7,
                        "baseSeverity": "MEDIUM",
                        "confidentialityImpact": "HIGH",
                        "integrityImpact": "HIGH",
                        "privilegesRequired": "HIGH",
                        "scope": "CHANGED",
                        "userInteraction": "REQUIRED",
                        "vectorString": "CVSS:3.1/AV:P/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:N",
                        "version": "3.1"
                    }
                }
            ],
            "references": [
                {
                    "name": "https://github.com/nextcloud/security-advisories/security/advisories/GHSA-jh3g-wpwv-cqgr",
                    "tags": [
                        "x_refsource_CONFIRM"
                    ],
                    "url": "https://github.com/nextcloud/security-advisories/security/advisories/GHSA-jh3g-wpwv-cqgr"
                },
                {
                    "name": "https://github.com/nextcloud/desktop/pull/5323",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/nextcloud/desktop/pull/5323"
                },
                {
                    "name": "https://ethz.ch/content/dam/ethz/special-interest/infk/inst-infsec/appliedcrypto/education/theses/report_DanieleCoppola.pdf",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://ethz.ch/content/dam/ethz/special-interest/infk/inst-infsec/appliedcrypto/education/theses/report_DanieleCoppola.pdf"
                }
            ],
            "affected": [
                {
                    "vendor": "nextcloud",
                    "product": "security-advisories",
                    "versions": [
                        {
                            "version": ">= 3.0.0, < 3.6.5",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
                "shortName": "GitHub_M",
                "dateUpdated": "2023-04-04T12:45:42.156Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "The Nextcloud Desktop Client is a tool to synchronize files from Nextcloud Server. Starting with version 3.0.0 and prior to version 3.6.5, a malicious server administrator can gain full access to an end-to-end encrypted folder. They can decrypt files, recover the folder structure, and add new files.​ Users should upgrade the Nextcloud Desktop client to 3.6.5 to receive a patch. No known workarounds are available."
                }
            ],
            "source": {
                "advisory": "GHSA-jh3g-wpwv-cqgr",
                "discovery": "UNKNOWN"
            }
        },
        "adp": [
            {
                "providerMetadata": {
                    "orgId": "af854a3a-2127-422b-91ae-364da2661108",
                    "shortName": "CVE",
                    "dateUpdated": "2024-08-02T13:51:38.943Z"
                },
                "title": "CVE Program Container",
                "references": [
                    {
                        "name": "https://github.com/nextcloud/security-advisories/security/advisories/GHSA-jh3g-wpwv-cqgr",
                        "tags": [
                            "x_refsource_CONFIRM",
                            "x_transferred"
                        ],
                        "url": "https://github.com/nextcloud/security-advisories/security/advisories/GHSA-jh3g-wpwv-cqgr"
                    },
                    {
                        "name": "https://github.com/nextcloud/desktop/pull/5323",
                        "tags": [
                            "x_refsource_MISC",
                            "x_transferred"
                        ],
                        "url": "https://github.com/nextcloud/desktop/pull/5323"
                    },
                    {
                        "name": "https://ethz.ch/content/dam/ethz/special-interest/infk/inst-infsec/appliedcrypto/education/theses/report_DanieleCoppola.pdf",
                        "tags": [
                            "x_refsource_MISC",
                            "x_transferred"
                        ],
                        "url": "https://ethz.ch/content/dam/ethz/special-interest/infk/inst-infsec/appliedcrypto/education/theses/report_DanieleCoppola.pdf"
                    }
                ]
            }
        ]
    }
}