{ "id": "CVE-2019-8268", "sourceIdentifier": "vulnerability@kaspersky.com", "published": "2019-03-08T23:29:00.623", "lastModified": "2020-10-19T17:56:30.103", "vulnStatus": "Analyzed", "descriptions": [ { "lang": "en", "value": "UltraVNC revision 1206 has multiple off-by-one vulnerabilities in VNC client code connected with improper usage of ClientConnection::ReadString function, which can potentially result code execution. This attack appears to be exploitable via network connectivity. These vulnerabilities have been fixed in revision 1207." }, { "lang": "es", "value": "UltraVNC, en su revisi\u00f3n 1206, tiene m\u00faltiples vulnerabilidades de error por un paso en el c\u00f3digo del cliente VNC conectadas con el uso incorrecto de la funci\u00f3n ClientConnection::ReadString, lo cual puede resultar, potencialmente, en la ejecuci\u00f3n de c\u00f3digo. Este ataque parece ser explotable mediante la conectividad de red. Se han solucionado estas vulnerabilidades en la revisi\u00f3n 1207." } ], "metrics": { "cvssMetricV31": [ { "source": "nvd@nist.gov", "type": "Primary", "cvssData": { "version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL" }, "exploitabilityScore": 3.9, "impactScore": 5.9 } ], "cvssMetricV2": [ { "source": "nvd@nist.gov", "type": "Primary", "cvssData": { "version": "2.0", "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "accessVector": "NETWORK", "accessComplexity": "LOW", "authentication": "NONE", "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "baseScore": 7.5 }, "baseSeverity": "HIGH", "exploitabilityScore": 10.0, "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-193" } ] }, { "source": "vulnerability@kaspersky.com", "type": "Secondary", "description": [ { "lang": "en", "value": "CWE-193" } ] } ], "configurations": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:a:uvnc:ultravnc:*:*:*:*:*:*:*:*", "versionEndExcluding": "1.2.2.3", "matchCriteriaId": "555D034F-3D64-4ED1-9B63-F8D59199E99C" } ] } ] }, { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:a:siemens:sinumerik_access_mymachine\\/p2p:*:*:*:*:*:*:*:*", "versionEndExcluding": "4.8", "matchCriteriaId": "D9345335-DF62-4472-93CD-E2C85453F91E" }, { "vulnerable": true, "criteria": "cpe:2.3:a:siemens:sinumerik_pcu_base_win10_software\\/ipc:*:*:*:*:*:*:*:*", "versionEndExcluding": "14.00", "matchCriteriaId": "7498412D-79FD-43FE-AD9B-5820FB5CF7D8" }, { "vulnerable": true, "criteria": "cpe:2.3:a:siemens:sinumerik_pcu_base_win7_software\\/ipc:*:*:*:*:*:*:*:*", "versionEndIncluding": "12.01", "matchCriteriaId": "1F603341-03C5-46CA-8A74-EC5A50135194" } ] } ] } ], "references": [ { "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-927095.pdf", "source": "vulnerability@kaspersky.com", "tags": [ "Third Party Advisory" ] }, { "url": "https://ics-cert.kaspersky.com/advisories/klcert-advisories/2019/03/01/klcert-19-015-ultravnc-off-by-one-error/", "source": "vulnerability@kaspersky.com", "tags": [ "Third Party Advisory" ] }, { "url": "https://www.us-cert.gov/ics/advisories/icsa-20-161-06", "source": "vulnerability@kaspersky.com", "tags": [ "Third Party Advisory", "US Government Resource" ] } ] }