{ "id": "CVE-2020-14002", "sourceIdentifier": "cve@mitre.org", "published": "2020-06-29T18:15:11.767", "lastModified": "2024-11-21T05:02:19.737", "vulnStatus": "Modified", "cveTags": [], "descriptions": [ { "lang": "en", "value": "PuTTY 0.68 through 0.73 has an Observable Discrepancy leading to an information leak in the algorithm negotiation. This allows man-in-the-middle attackers to target initial connection attempts (where no host key for the server has been cached by the client)." }, { "lang": "es", "value": "PuTTY versiones 0.68 hasta 0.73, presenta una Discrepancia Observable que conlleva a una filtraci\u00f3n de informaci\u00f3n en la negociaci\u00f3n del algoritmo. Esto permite a atacantes de tipo man-in-the-middle apuntar a los intentos iniciales de conexi\u00f3n (donde ninguna clave de host para el servidor ha sido almacenada en cach\u00e9 por parte del cliente)" } ], "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:N/A:N", "baseScore": 5.9, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "HIGH", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "availabilityImpact": "NONE" }, "exploitabilityScore": 2.2, "impactScore": 3.6 } ], "cvssMetricV2": [ { "source": "nvd@nist.gov", "type": "Primary", "cvssData": { "version": "2.0", "vectorString": "AV:N/AC:M/Au:N/C:P/I:N/A:N", "baseScore": 4.3, "accessVector": "NETWORK", "accessComplexity": "MEDIUM", "authentication": "NONE", "confidentialityImpact": "PARTIAL", "integrityImpact": "NONE", "availabilityImpact": "NONE" }, "baseSeverity": "MEDIUM", "exploitabilityScore": 8.6, "impactScore": 2.9, "acInsufInfo": false, "obtainAllPrivilege": false, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": true } ] }, "weaknesses": [ { "source": "nvd@nist.gov", "type": "Primary", "description": [ { "lang": "en", "value": "CWE-203" } ] } ], "configurations": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:a:putty:putty:*:*:*:*:*:*:*:*", "versionStartIncluding": "0.68", "versionEndIncluding": "0.73", "matchCriteriaId": "DA634637-36DC-4B12-BA44-350AB2FDA175" } ] } ] }, { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:a:netapp:oncommand_unified_manager_core_package:-:*:*:*:*:*:*:*", "matchCriteriaId": "0A4D418D-B526-46B9-B439-E1963BF88C0A" } ] } ] }, { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*", "matchCriteriaId": "80F0FA5D-8D3B-4C0E-81E2-87998286AF33" }, { "vulnerable": true, "criteria": "cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*", "matchCriteriaId": "36D96259-24BD-44E2-96D9-78CE1D41F956" } ] } ] } ], "references": [ { "url": "https://lists.debian.org/debian-lts-announce/2024/04/msg00016.html", "source": "cve@mitre.org" }, { "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/26TACCSQYYCPWAJYNAUIXJGZ5RGORJZV/", "source": "cve@mitre.org" }, { "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JPV4A77EDCT4BTFO5BE26ZH72BG4E5IJ/", "source": "cve@mitre.org" }, { "url": "https://lists.tartarus.org/pipermail/putty-announce/", "source": "cve@mitre.org", "tags": [ "Third Party Advisory" ] }, { "url": "https://security.netapp.com/advisory/ntap-20200717-0003/", "source": "cve@mitre.org", "tags": [ "Third Party Advisory" ] }, { "url": "https://www.chiark.greenend.org.uk/~sgtatham/putty/changes.html", "source": "cve@mitre.org", "tags": [ "Release Notes", "Third Party Advisory" ] }, { "url": "https://www.fzi.de/en/news/news/detail-en/artikel/fsa-2020-2-ausnutzung-eines-informationslecks-fuer-gezielte-mitm-angriffe-auf-ssh-clients/", "source": "cve@mitre.org", "tags": [ "Third Party Advisory" ] }, { "url": "https://lists.debian.org/debian-lts-announce/2024/04/msg00016.html", "source": "af854a3a-2127-422b-91ae-364da2661108" }, { "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/26TACCSQYYCPWAJYNAUIXJGZ5RGORJZV/", "source": "af854a3a-2127-422b-91ae-364da2661108" }, { "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JPV4A77EDCT4BTFO5BE26ZH72BG4E5IJ/", "source": "af854a3a-2127-422b-91ae-364da2661108" }, { "url": "https://lists.tartarus.org/pipermail/putty-announce/", "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Third Party Advisory" ] }, { "url": "https://security.netapp.com/advisory/ntap-20200717-0003/", "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Third Party Advisory" ] }, { "url": "https://www.chiark.greenend.org.uk/~sgtatham/putty/changes.html", "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Release Notes", "Third Party Advisory" ] }, { "url": "https://www.fzi.de/en/news/news/detail-en/artikel/fsa-2020-2-ausnutzung-eines-informationslecks-fuer-gezielte-mitm-angriffe-auf-ssh-clients/", "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Third Party Advisory" ] } ] }