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CVE-2020-4747

Estado: ModificadaCrítica (9.8)—

IBM Connect:Direct para UNIX versiones 6.1.0, 6.0.0, 4.3.0 y 4.2.0, puede permitir a un usuario local o remoto obtener una sesión de la CLI autenticada debido a métodos de autenticación inapropiados. IBM X-Force ID: 188516

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

IBM — Connect\

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2020-4747",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 7.5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 6.4,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV30": [
      {
        "type": "Secondary",
        "source": "psirt@us.ibm.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.0",
          "baseScore": 7.4,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "HIGH",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.2,
        "exploitabilityScore": 2.2
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 9.8,
          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "psirt@us.ibm.com",
      "affectedData": [
        {
          "vendor": "IBM",
          "product": "Sterling Connect:Direct for UNIX",
          "versions": [
            {
              "status": "affected",
              "version": "4.2.0"
            },
            {
              "status": "affected",
              "version": "4.3.0"
            },
            {
              "status": "affected",
              "version": "6.0.0"
            },
            {
              "status": "affected",
              "version": "6.1.0"
            }
          ]
        }
      ]
    }
  ],
  "published": "2020-12-15T15:15:12.627",
  "references": [
    {
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/188516",
      "tags": [
        "VDB Entry",
        "Vendor Advisory"
      ],
      "source": "psirt@us.ibm.com"
    },
    {
      "url": "https://www.ibm.com/support/pages/node/6381904",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "psirt@us.ibm.com"
    },
    {
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/188516",
      "tags": [
        "VDB Entry",
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://www.ibm.com/support/pages/node/6381904",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-287"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "IBM Connect:Direct for UNIX 6.1.0, 6.0.0, 4.3.0, and 4.2.0 can allow a local or remote user to obtain an authenticated CLI session due to improper authentication methods. IBM X-Force ID: 188516."
    },
    {
      "lang": "es",
      "value": "IBM Connect:Direct para UNIX versiones 6.1.0, 6.0.0, 4.3.0 y 4.2.0, puede permitir a un usuario local o remoto obtener una sesión de la CLI autenticada debido a métodos de autenticación inapropiados. IBM X-Force ID: 188516"
    }
  ],
  "lastModified": "2026-06-17T03:20:25.793",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:ibm:connect\\:direct:4.2.0:*:*:*:*:unix:*:*",
              "vulnerable": true,
              "matchCriteriaId": "02EA198D-BF51-4A15-972E-A62629DC6462"
            },
            {
              "criteria": "cpe:2.3:a:ibm:connect\\:direct:4.3.0:*:*:*:*:unix:*:*",
              "vulnerable": true,
              "matchCriteriaId": "EB35CB2A-D755-4B46-ABAD-3F30AB64FA7E"
            },
            {
              "criteria": "cpe:2.3:a:ibm:connect\\:direct:6.0.0:*:*:*:*:unix:*:*",
              "vulnerable": true,
              "matchCriteriaId": "23A0E317-0293-4357-B943-B94924BE2FD5"
            },
            {
              "criteria": "cpe:2.3:a:ibm:connect\\:direct:6.1.0:*:*:*:*:unix:*:*",
              "vulnerable": true,
              "matchCriteriaId": "70B07868-83AC-40EF-B193-FC9825424878"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "psirt@us.ibm.com"
}