CVE-2021-25631

{"containers": {"cna": {"affected": [{"platforms": ["Windows"], "product": "LibreOffice", "vendor": "The Document Foundation", "versions": [{"lessThan": "7.1.2", "status": "affected", "version": "7.1", "versionType": "custom"}, {"lessThan": "7.0.5", "status": "affected", "version": "7.0", "versionType": "custom"}]}], "credits": [{"lang": "en", "value": "Lukas Euler of Positive Security"}], "datePublic": "2021-04-15T00:00:00.000Z", "descriptions": [{"lang": "en", "value": "In the LibreOffice 7-1 series in versions prior to 7.1.2, and in the 7-0 series in versions prior to 7.0.5, the denylist can be circumvented by manipulating the link so it doesn't match the denylist but results in ShellExecute attempting to launch an executable type."}], "problemTypes": [{"descriptions": [{"cweId": "CWE-184", "description": "CWE-184 Incomplete Denylist", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"dateUpdated": "2021-05-03T11:10:33.000Z", "orgId": "4fe7d05b-1353-44cc-8b7a-1e416936dff2", "shortName": "Document Fdn."}, "references": [{"tags": ["x_refsource_MISC"], "url": "https://positive.security/blog/url-open-rce#open-libreoffice"}, {"tags": ["x_refsource_MISC"], "url": "https://www.libreoffice.org/about-us/security/advisories/cve-2021-25631/"}], "source": {"discovery": "UNKNOWN"}, "title": "denylist of executable filename extensions possible to bypass under windows", "x_generator": {"engine": "Vulnogram 0.0.9"}, "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "security@documentfoundation.org", "DATE_PUBLIC": "2021-04-15T00:00:00.000Z", "ID": "CVE-2021-25631", "STATE": "PUBLIC", "TITLE": "denylist of executable filename extensions possible to bypass under windows"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "LibreOffice", "version": {"version_data": [{"platform": "Windows", "version_affected": "<", "version_name": "7.1", "version_value": "7.1.2"}, {"platform": "Windows", "version_affected": "<", "version_name": "7.0", "version_value": "7.0.5"}]}}]}, "vendor_name": "The Document Foundation"}]}}, "credit": [{"lang": "eng", "value": "Lukas Euler of Positive Security"}], "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "In the LibreOffice 7-1 series in versions prior to 7.1.2, and in the 7-0 series in versions prior to 7.0.5, the denylist can be circumvented by manipulating the link so it doesn't match the denylist but results in ShellExecute attempting to launch an executable type."}]}, "generator": {"engine": "Vulnogram 0.0.9"}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "CWE-184 Incomplete Denylist"}]}]}, "references": {"reference_data": [{"name": "https://positive.security/blog/url-open-rce#open-libreoffice", "refsource": "MISC", "url": "https://positive.security/blog/url-open-rce#open-libreoffice"}, {"name": "https://www.libreoffice.org/about-us/security/advisories/cve-2021-25631/", "refsource": "MISC", "url": "https://www.libreoffice.org/about-us/security/advisories/cve-2021-25631/"}]}, "source": {"discovery": "UNKNOWN"}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T20:11:27.645Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://positive.security/blog/url-open-rce#open-libreoffice"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://www.libreoffice.org/about-us/security/advisories/cve-2021-25631/"}]}]}, "cveMetadata": {"assignerOrgId": "4fe7d05b-1353-44cc-8b7a-1e416936dff2", "assignerShortName": "Document Fdn.", "cveId": "CVE-2021-25631", "datePublished": "2021-05-03T11:10:33.079Z", "dateReserved": "2021-01-19T00:00:00.000Z", "dateUpdated": "2024-09-16T17:08:37.634Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

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{"affected": [{"affectedData": [{"platforms": ["Windows"], "product": "LibreOffice", "vendor": "The Document Foundation", "versions": [{"lessThan": "7.1.2", "status": "affected", "version": "7.1", "versionType": "custom"}, {"lessThan": "7.0.5", "status": "affected", "version": "7.0", "versionType": "custom"}]}], "source": "security@documentfoundation.org"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:libreoffice:libreoffice:*:*:*:*:*:*:*:*", "matchCriteriaId": "37496EEC-C63C-46DE-92F2-A29DECF95EE2", "versionEndExcluding": "7.0.5", "versionStartIncluding": "7.0.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:libreoffice:libreoffice:*:*:*:*:*:*:*:*", "matchCriteriaId": "BA884385-2527-4F68-9FD5-67ECD9A89F42", "versionEndExcluding": "7.1.2", "versionStartIncluding": "7.1.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the LibreOffice 7-1 series in versions prior to 7.1.2, and in the 7-0 series in versions prior to 7.0.5, the denylist can be circumvented by manipulating the link so it doesn't match the denylist but results in ShellExecute attempting to launch an executable type."}, {"lang": "es", "value": "En la serie LibreOffice 7-1 en versiones anteriores a 7.1.2, y en la serie 7-0 en versiones anteriores a 7.0.5, la denylist puede ser omitida al manipular el enlace para que no coincida con la denylist pero resulte en ShellExecute intentando iniciar un tipo ejecutable."}], "id": "CVE-2021-25631", "lastModified": "2026-06-17T03:42:15.093", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "HIGH", "cvssData": {"accessComplexity": "MEDIUM", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "COMPLETE", "baseScore": 9.3, "confidentialityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "vectorString": "AV:N/AC:M/Au:N/C:C/I:C/A:C", "version": "2.0"}, "exploitabilityScore": 8.6, "impactScore": 10.0, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": true}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2021-05-03T12:15:07.417", "references": [{"source": "security@documentfoundation.org", "tags": ["Exploit", "Third Party Advisory"], "url": "https://positive.security/blog/url-open-rce#open-libreoffice"}, {"source": "security@documentfoundation.org", "tags": ["Vendor Advisory"], "url": "https://www.libreoffice.org/about-us/security/advisories/cve-2021-25631/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Third Party Advisory"], "url": "https://positive.security/blog/url-open-rce#open-libreoffice"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://www.libreoffice.org/about-us/security/advisories/cve-2021-25631/"}], "sourceIdentifier": "security@documentfoundation.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-184"}], "source": "security@documentfoundation.org", "type": "Secondary"}, {"description": [{"lang": "en", "value": "NVD-CWE-Other"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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