« Volver al listado

CVE-2020-28214

Estado: ModificadaMedia (5.5)—

A CWE-760: Use of a One-Way Hash with a Predictable Salt vulnerability exists in Modicon M221 (all references, all versions), that could allow an attacker to pre-compute the hash value using dictionary attack technique such as rainbow tables, effectively disabling the protection that an unpredictable salt would provide.

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)

Schneider-electric — Modicon M221 Firmware

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2020-28214",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2020-28214",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-05-28T20:12:35.109774Z"
        }
      }
    ],
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 2.1,
          "accessVector": "LOCAL",
          "vectorString": "AV:L/AC:L/Au:N/C:P/I:N/A:N",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "LOW",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "LOW",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 3.9,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 5.5,
          "attackVector": "LOCAL",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 1.8
      },
      {
        "type": "Secondary",
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "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": "cybersecurity@se.com",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "Modicon M221 (all references, all versions)",
          "versions": [
            {
              "status": "affected",
              "version": "Modicon M221 (all references, all versions)"
            }
          ]
        }
      ]
    }
  ],
  "published": "2020-12-11T01:15:11.407",
  "references": [
    {
      "url": "https://us-cert.cisa.gov/ics/advisories/icsa-20-343-04",
      "tags": [
        "Third Party Advisory",
        "US Government Resource"
      ],
      "source": "cybersecurity@se.com"
    },
    {
      "url": "https://www.se.com/ww/en/download/document/SEVD-2020-315-05/",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "cybersecurity@se.com"
    },
    {
      "url": "https://us-cert.cisa.gov/ics/advisories/icsa-20-343-04",
      "tags": [
        "Third Party Advisory",
        "US Government Resource"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://www.se.com/ww/en/download/document/SEVD-2020-315-05/",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "cybersecurity@se.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-760"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "A CWE-760: Use of a One-Way Hash with a Predictable Salt vulnerability exists in Modicon M221 (all references, all versions), that could allow an attacker to pre-compute the hash value using dictionary attack technique such as rainbow tables, effectively disabling the protection that an unpredictable salt would provide."
    },
    {
      "lang": "es",
      "value": "Una CWE-760: Una vulnerabilidad de un Uso de Hash Unidireccional con una Sal Predecible se presenta en Modicon M221 (todas las referencias, todas las versiones), que podría permitir a un atacante precalcular el valor del hash utilizando una técnica de ataque de diccionario tal y como tablas de arco iris, deshabilitando efectivamente la protección que una sal impredecible podría proporcionar"
    }
  ],
  "lastModified": "2026-06-17T03:10:12.900",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:schneider-electric:modicon_m221_firmware:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "97963104-B620-4AE1-BD6C-7BF714497F78"
            }
          ],
          "operator": "OR"
        },
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:h:schneider-electric:modicon_m221:-:*:*:*:*:*:*:*",
              "vulnerable": false,
              "matchCriteriaId": "BB0D83F4-B718-47AB-AFB8-B576CB138AAC"
            }
          ],
          "operator": "OR"
        }
      ],
      "operator": "AND"
    }
  ],
  "sourceIdentifier": "cybersecurity@se.com"
}