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CVE-2021-42794

Estado: ModificadaMedia (5.3)—

An issue was discovered in AVEVA Edge (formerly InduSoft Web Studio) versions R2020 and prior. The application allows a client to provide a malicious connection string that could allow an adversary to port scan the LAN, depending on the hosts' responses.

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)

Aveva — Edge

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2021-42794",
  "cveTags": [],
  "metrics": {
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "cve@mitre.org",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 5.3,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "LOW"
        },
        "impactScore": 1.4,
        "exploitabilityScore": 3.9
      },
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 5.3,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "LOW"
        },
        "impactScore": 1.4,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2023-12-16T01:15:07.367",
  "references": [
    {
      "url": "https://www.aveva.com/en/products/edge/",
      "tags": [
        "Product"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://www.cisa.gov/news-events/ics-advisories/icsa-22-326-01",
      "tags": [
        "Third Party Advisory",
        "US Government Resource"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://www.exploit-db.com/docs/english/17254-connection-string-parameter-pollution-attacks.pdf",
      "tags": [
        "Exploit",
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://www.aveva.com/en/products/edge/",
      "tags": [
        "Product"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://www.cisa.gov/news-events/ics-advisories/icsa-22-326-01",
      "tags": [
        "Third Party Advisory",
        "US Government Resource"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://www.exploit-db.com/docs/english/17254-connection-string-parameter-pollution-attacks.pdf",
      "tags": [
        "Exploit",
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "An issue was discovered in AVEVA Edge (formerly InduSoft Web Studio) versions R2020 and prior. The application allows a client to provide a malicious connection string that could allow an adversary to port scan the LAN, depending on the hosts' responses."
    },
    {
      "lang": "es",
      "value": "Se descubrió un problema en las versiones R2020 y anteriores de AVEVA Edge (anteriormente InduSoft Web Studio). La aplicación permite a un cliente proporcionar una cadena de conexión maliciosa que podría permitir a un adversario escanear puertos de la LAN, dependiendo de las respuestas de los hosts."
    }
  ],
  "lastModified": "2026-06-17T04:10:09.157",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:aveva:edge:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "1838ED5C-E082-4087-A55D-8038A308510C",
              "versionEndExcluding": "2020"
            },
            {
              "criteria": "cpe:2.3:a:aveva:edge:2020:-:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "AF8F7975-0BF0-446E-A33C-306D9045BE5D"
            },
            {
              "criteria": "cpe:2.3:a:aveva:edge:2020:r2:-:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "F6A6358A-9F55-452A-8378-5BF05473EDFA"
            },
            {
              "criteria": "cpe:2.3:a:aveva:edge:2020:r2:sp1:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "D5080C65-4773-4AF2-B385-9FD02BAD5237"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cve@mitre.org"
}