{ "id": "CVE-2021-26561", "sourceIdentifier": "security@synology.com", "published": "2021-02-26T22:15:19.877", "lastModified": "2022-04-26T13:16:30.897", "vulnStatus": "Analyzed", "descriptions": [ { "lang": "en", "value": "Stack-based buffer overflow vulnerability in synoagentregisterd in Synology DiskStation Manager (DSM) before 6.2.3-25426-3 allows man-in-the-middle attackers to execute arbitrary code via syno_finder_site HTTP header." }, { "lang": "es", "value": "Una vulnerabilidad de desbordamiento del b\u00fafer en la regi\u00f3n stack de la memoria en synoagentregisterd en Synology DiskStation Manager (DSM) versiones anteriores a 6.2.3-25426-3, permite a atacantes de tipo man-in-the-middle ejecutar c\u00f3digo arbitrario por medio del encabezado HTTP syno_finder_site" } ], "metrics": { "cvssMetricV31": [ { "source": "nvd@nist.gov", "type": "Primary", "cvssData": { "version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H", "attackVector": "NETWORK", "attackComplexity": "HIGH", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH", "baseScore": 8.1, "baseSeverity": "HIGH" }, "exploitabilityScore": 2.2, "impactScore": 5.9 }, { "source": "security@synology.com", "type": "Secondary", "cvssData": { "version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H", "attackVector": "NETWORK", "attackComplexity": "HIGH", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "CHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH", "baseScore": 9.0, "baseSeverity": "CRITICAL" }, "exploitabilityScore": 2.2, "impactScore": 6.0 } ], "cvssMetricV2": [ { "source": "nvd@nist.gov", "type": "Primary", "cvssData": { "version": "2.0", "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P", "accessVector": "NETWORK", "accessComplexity": "MEDIUM", "authentication": "NONE", "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "baseScore": 6.8 }, "baseSeverity": "MEDIUM", "exploitabilityScore": 8.6, "impactScore": 6.4, "acInsufInfo": false, "obtainAllPrivilege": false, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false } ] }, "weaknesses": [ { "source": "nvd@nist.gov", "type": "Primary", "description": [ { "lang": "en", "value": "CWE-119" } ] }, { "source": "security@synology.com", "type": "Secondary", "description": [ { "lang": "en", "value": "CWE-121" } ] } ], "configurations": [ { "operator": "AND", "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:a:synology:diskstation_manager:*:*:*:*:*:*:*:*", "versionEndExcluding": "6.2.3-25426-3", "matchCriteriaId": "D3A47DA1-91A8-408B-9985-59C64DFF81DC" } ] } ] }, { "operator": "AND", "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:o:synology:vs960hd_firmware:-:*:*:*:*:*:*:*", "matchCriteriaId": "3D0C5120-B961-440F-B454-584BC54B549C" } ] }, { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": false, "criteria": "cpe:2.3:h:synology:vs960hd:-:*:*:*:*:*:*:*", "matchCriteriaId": "1CCBDFF9-AF42-4681-879B-CF789EBAD130" } ] } ] }, { "operator": "AND", "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:o:synology:skynas_firmware:-:*:*:*:*:*:*:*", "matchCriteriaId": "53EF087B-D7E9-4F9A-803A-B0260C495C67" } ] }, { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": false, "criteria": "cpe:2.3:h:synology:skynas:-:*:*:*:*:*:*:*", "matchCriteriaId": "D0A88A76-CF8A-4D29-B480-E5317219072D" } ] } ] }, { "operator": "AND", "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:o:synology:diskstation_manager_unified_controller:3.0:*:*:*:*:*:*:*", "matchCriteriaId": "6B04366E-B5F8-4835-B1FB-106AFD3D3785" } ] }, { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": false, "criteria": "cpe:2.3:h:synology:uc3200:-:*:*:*:*:*:*:*", "matchCriteriaId": "1100D972-198E-45F9-8F04-763F6FE88377" } ] } ] } ], "references": [ { "url": "https://www.synology.com/security/advisory/Synology_SA_20_26", "source": "security@synology.com", "tags": [ "Vendor Advisory" ] }, { "url": "https://www.talosintelligence.com/vulnerability_reports/TALOS-2020-1159", "source": "security@synology.com", "tags": [ "Exploit", "Third Party Advisory" ] } ] }