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CVE-2024-0323

Status: ModifiedCritical (9.8)—

The FTP server used on the B&R Automation Runtime supports unsecure encryption mechanisms, such as SSLv3, TLSv1.0 and TLS1.1. An network-based attacker can exploit the flaws to conduct man-in-the-middle attacks or to decrypt communications between the affected product clients.

CVSS

Exploitation probability (EPSS)

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Affected technologies (1)

Br-automation — Automation Runtime

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2024-0323",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2024-0323",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2024-08-22T14:10:59.497846Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "cybersecurity@ch.abb.com",
        "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
      },
      {
        "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": "cybersecurity@ch.abb.com",
      "affectedData": [
        {
          "vendor": "B&R Industrial Automation",
          "modules": [
            "SDM"
          ],
          "product": "Automation Runtime",
          "versions": [
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              "status": "affected",
              "version": "14.0",
              "lessThan": "14.93",
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      "affectedData": [
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          "vendor": "br-automation",
          "product": "automation_runtime",
          "versions": [
            {
              "status": "affected",
              "version": "14.0",
              "lessThan": "14.93",
              "versionType": "custom"
            }
          ],
          "defaultStatus": "unaffected"
        }
      ]
    }
  ],
  "published": "2024-02-05T16:15:54.980",
  "references": [
    {
      "url": "https://www.br-automation.com/fileadmin/SA23P004_FTP_uses_unsecure_encryption_mechanisms-f57c147c.pdf",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "cybersecurity@ch.abb.com"
    },
    {
      "url": "https://www.br-automation.com/fileadmin/SA23P004_FTP_uses_unsecure_encryption_mechanisms-f57c147c.pdf",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "cybersecurity@ch.abb.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-1240"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "The FTP server used on the B&R\nAutomation Runtime supports unsecure encryption mechanisms, such as SSLv3,\nTLSv1.0 and TLS1.1. An network-based attacker can exploit the flaws to conduct\nman-in-the-middle attacks or to decrypt communications between the affected product\nclients."
    },
    {
      "lang": "es",
      "value": "Uso de una vulnerabilidad de algoritmo criptográfico defectuoso o riesgoso en B&R Industrial Automation Automation Runtime (módulos SDM). El servidor FTP utilizado en B&R Automation Runtime admite mecanismos de cifrado no seguros, como SSLv3, TLSv1.0 y TLS1.1. Un atacante basado en red puede explotar las fallas para realizar ataques de intermediario o para descifrar las comunicaciones entre los clientes del producto afectado. Este problema afecta a Automation Runtime: desde 14.0 antes de 14.93."
    }
  ],
  "lastModified": "2026-06-17T06:53:16.587",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:br-automation:automation_runtime:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "B9413C6B-C322-4F68-8CA3-EA167591CED0",
              "versionEndIncluding": "i4.93"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cybersecurity@ch.abb.com"
}