{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.1",
    "cveMetadata": {
        "cveId": "CVE-2021-25635",
        "assignerOrgId": "4fe7d05b-1353-44cc-8b7a-1e416936dff2",
        "state": "PUBLISHED",
        "assignerShortName": "Document Fdn.",
        "dateReserved": "2021-01-19T22:48:43.994Z",
        "datePublished": "2025-03-21T14:52:50.484Z",
        "dateUpdated": "2025-03-21T15:13:24.100Z"
    },
    "containers": {
        "cna": {
            "affected": [
                {
                    "defaultStatus": "unknown",
                    "product": "LibreOffice",
                    "vendor": "The Document Foundation",
                    "versions": [
                        {
                            "lessThan": "7.0.5",
                            "status": "affected",
                            "version": "7.0",
                            "versionType": "7.0 series"
                        },
                        {
                            "lessThan": "7.1.1",
                            "status": "affected",
                            "version": "7.1",
                            "versionType": "7.1 series"
                        }
                    ]
                }
            ],
            "credits": [
                {
                    "lang": "en",
                    "type": "finder",
                    "value": "NDS of Ruhr University Bochum"
                }
            ],
            "datePublic": "2021-10-11T14:00:00.000Z",
            "descriptions": [
                {
                    "lang": "en",
                    "supportingMedia": [
                        {
                            "base64": false,
                            "type": "text/html",
                            "value": "<div>An Improper Certificate Validation vulnerability in LibreOffice allowed \nan attacker to self sign an ODF document, with a signature untrusted by \nthe target, then modify it to change the signature algorithm to an \ninvalid (or unknown to LibreOffice) algorithm and LibreOffice would incorrectly present such a signature with an unknown algorithm as a \nvalid signature issued by a trusted person<br></div><p>This issue affects LibreOffice: from 7.0 before 7.0.5, from 7.1 before 7.1.1.</p>"
                        }
                    ],
                    "value": "An Improper Certificate Validation vulnerability in LibreOffice allowed \nan attacker to self sign an ODF document, with a signature untrusted by \nthe target, then modify it to change the signature algorithm to an \ninvalid (or unknown to LibreOffice) algorithm and LibreOffice would incorrectly present such a signature with an unknown algorithm as a \nvalid signature issued by a trusted person\n\n\nThis issue affects LibreOffice: from 7.0 before 7.0.5, from 7.1 before 7.1.1."
                }
            ],
            "impacts": [
                {
                    "capecId": "CAPEC-475",
                    "descriptions": [
                        {
                            "lang": "en",
                            "value": "CAPEC-475 Signature Spoofing by Improper Validation"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV4_0": {
                        "Automatable": "NOT_DEFINED",
                        "Recovery": "NOT_DEFINED",
                        "Safety": "NOT_DEFINED",
                        "attackComplexity": "HIGH",
                        "attackRequirements": "NONE",
                        "attackVector": "LOCAL",
                        "baseScore": 5.2,
                        "baseSeverity": "MEDIUM",
                        "privilegesRequired": "NONE",
                        "providerUrgency": "NOT_DEFINED",
                        "subAvailabilityImpact": "HIGH",
                        "subConfidentialityImpact": "HIGH",
                        "subIntegrityImpact": "HIGH",
                        "userInteraction": "PASSIVE",
                        "valueDensity": "NOT_DEFINED",
                        "vectorString": "CVSS:4.0/AV:L/AC:H/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:H/SI:H/SA:H",
                        "version": "4.0",
                        "vulnAvailabilityImpact": "NONE",
                        "vulnConfidentialityImpact": "LOW",
                        "vulnIntegrityImpact": "LOW",
                        "vulnerabilityResponseEffort": "NOT_DEFINED"
                    },
                    "format": "CVSS",
                    "scenarios": [
                        {
                            "lang": "en",
                            "value": "GENERAL"
                        }
                    ]
                }
            ],
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-295",
                            "description": "CWE-295 Improper Certificate Validation",
                            "lang": "en",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "4fe7d05b-1353-44cc-8b7a-1e416936dff2",
                "shortName": "Document Fdn.",
                "dateUpdated": "2025-03-21T14:52:50.484Z"
            },
            "references": [
                {
                    "url": "https://www.libreoffice.org/about-us/security/advisories/cve-2021-25635/"
                }
            ],
            "source": {
                "discovery": "EXTERNAL"
            },
            "title": "Content Manipulation with Certificate Validation Attack",
            "x_generator": {
                "engine": "Vulnogram 0.2.0"
            }
        },
        "adp": [
            {
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2025-03-21T15:13:07.905943Z",
                                "id": "CVE-2021-25635",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "no"
                                    },
                                    {
                                        "Technical Impact": "total"
                                    }
                                ],
                                "role": "CISA Coordinator",
                                "version": "2.0.3"
                            }
                        }
                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2025-03-21T15:13:24.100Z"
                }
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        ]
    }
}