{"containers": {"cna": {"affected": [{"product": "Yandex Browser (Desktop)", "vendor": "n/a", "versions": [{"status": "affected", "version": "All versions prior to version 22.5.0.862"}]}], "descriptions": [{"lang": "en", "value": "Local privilege vulnerability in Yandex Browser for Windows prior to 22.5.0.862 allows a local, low privileged, attacker to execute arbitary code with the SYSTEM privileges through manipulating symlinks to installation file during Yandex Browser update process."}], "problemTypes": [{"descriptions": [{"description": "Privilege escalation", "lang": "en", "type": "text"}]}], "providerMetadata": {"dateUpdated": "2022-06-15T19:05:54", "orgId": "a51c9250-e584-488d-808b-03e6f1386796", "shortName": "yandex"}, "references": [{"tags": ["x_refsource_MISC"], "url": "https://yandex.com/bugbounty/i/hall-of-fame-browser/"}], "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "browser-security@yandex-team.ru", "ID": "CVE-2021-25261", "STATE": "PUBLIC"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "Yandex Browser (Desktop)", "version": {"version_data": [{"version_value": "All versions prior to version 22.5.0.862"}]}}]}, "vendor_name": "n/a"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "Local privilege vulnerability in Yandex Browser for Windows prior to 22.5.0.862 allows a local, low privileged, attacker to execute arbitary code with the SYSTEM privileges through manipulating symlinks to installation file during Yandex Browser update process."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "Privilege escalation"}]}]}, "references": {"reference_data": [{"name": "https://yandex.com/bugbounty/i/hall-of-fame-browser/", "refsource": "MISC", "url": "https://yandex.com/bugbounty/i/hall-of-fame-browser/"}]}}}}, "cveMetadata": {"assignerOrgId": "a51c9250-e584-488d-808b-03e6f1386796", "assignerShortName": "yandex", "cveId": "CVE-2021-25261", "datePublished": "2022-06-15T19:05:54", "dateReserved": "2021-01-15T00:00:00", "dateUpdated": "2022-06-15T19:05:54", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.0"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:yandex:yandex_browser:*:*:*:*:*:*:*:*", "matchCriteriaId": "BA7BAE67-AF47-488D-8252-B712530F284B", "versionEndExcluding": "22.5.0.862", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*", "matchCriteriaId": "A2572D17-1DE6-457B-99CC-64AFD54487EA", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}], "descriptions": [{"lang": "en", "value": "Local privilege vulnerability in Yandex Browser for Windows prior to 22.5.0.862 allows a local, low privileged, attacker to execute arbitary code with the SYSTEM privileges through manipulating symlinks to installation file during Yandex Browser update process."}, {"lang": "es", "value": "Una vulnerabilidad de privilegios locales en Yandex Browser para Windows versiones anteriores a 22.5.0.862 permite a un atacante local, con pocos privilegios, ejecutar c\u00f3digo arbitrario con los privilegios del SISTEMA a trav\u00e9s de la manipulaci\u00f3n de enlaces simb\u00f3licos al archivo de instalaci\u00f3n durante el proceso de actualizaci\u00f3n de Yandex Browser"}], "id": "CVE-2021-25261", "lastModified": "2022-06-24T16:41:44.597", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "HIGH", "cvssData": {"accessComplexity": "LOW", "accessVector": "LOCAL", "authentication": "NONE", "availabilityImpact": "COMPLETE", "baseScore": 7.2, "confidentialityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C", "version": "2.0"}, "exploitabilityScore": 3.9, "impactScore": 10.0, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2022-06-15T20:15:17.093", "references": [{"source": "browser-security@yandex-team.ru", "tags": ["Vendor Advisory"], "url": "https://yandex.com/bugbounty/i/hall-of-fame-browser/"}], "sourceIdentifier": "browser-security@yandex-team.ru", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-59"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{}