{"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"}}]}}