csaf_opcfoundation:opc-2024-10-15-45526

{
  "document": {
    "category": "opc_security_advisory",
    "csaf_version": "2.0",
    "notes": [
      {
        "category": "legal_disclaimer",
        "text": "The information provided in this disclosure is provided 'as is' without warranty of any kind. OPC Foundation disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. In no event shall OPC Foundation or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if OPC Foundation or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation may not apply"
      }
    ],
    "publisher": {
      "category": "vendor",
      "name": "OPC Foundation",
      "namespace": "https://opcfoundation.org/security/csaf"
    },
    "title": "Security Advisory for CVE-2024-45526",
    "tracking": {
      "current_release_date": "2024-10-15T00:00:00Z",
      "id": "OPC-2024-10-15-45526",
      "initial_release_date": "2024-10-15T00:00:00Z",
      "revision_history": [
        {
          "date": "2024-10-15T00:00:00Z",
          "number": "1.0.0",
          "summary": "Bulletin published."
        }
      ],
      "status": "final",
      "version": "1.0.0"
    }
  },
  "product_tree": {
    "branches": [
      {
        "category": "product_name",
        "name": "OPC UA .NET Standard Stack",
        "product": {
          "name": "OPC UA .NET Standard Stack <1.5.374.118",
          "product_id": "CSAFPID-01"
        }
      }
    ]
  },
  "vulnerabilities": [
    {
      "acknowledgments": [
        {
          "names": [
            "Florian Kohnhäuser"
          ],
          "organization": "ABB",
          "summary": "Reported the issue."
        }
      ],
      "cve": "CVE-2024-45526",
      "cwe": {
        "id": "CWE-770",
        "name": "Allocation of Resources Without Limits or Throttling"
      },
      "discovery_date": "2024-10-15T00:00:00Z",
      "ids": [
        {
          "system_name": "GCVE",
          "text": "GCVE-105-2024-45526"
        }
      ],
      "references": [
        {
          "summary": "PDF version",
          "url": "https://files.opcfoundation.org/SecurityBulletins/OPC%20Foundation%20Security%20Bulletin%20CVE-2024-45526.pdf"
        },
        {
          "summary": "CVE record",
          "url": "https://www.cve.org/CVERecord?id=CVE-2024-45526"
        },
        {
          "summary": "Patch version",
          "url": "https://github.com/OPCFoundation/UA-.NETStandard/releases/tag/1.5.374.118"
        },
        {
          "summary": "CWE-770: Allocation of Resources Without Limits or Throttling",
          "url": "https://cwe.mitre.org/data/definitions/770.html"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "Update to OPC UA .NET Standard Stack version 1.5.374.118 or later.",
          "product_ids": [
            "CSAFPID-01"
          ],
          "url": "https://github.com/OPCFoundation/UA-.NETStandard/releases/tag/1.5.374.118"
        },
        {
          "category": "workaround",
          "details": "Disable saving rejected certificates after authentication failure.",
          "product_ids": [
            "CSAFPID-01"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
            "version": "3.1"
          },
          "products": [
            "CSAFPID-01"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "An unauthorized attacker can trigger a gradual degradation in performance."
        }
      ],
      "title": "Performance degradation attack in OPC UA .NET Standard Stack"
    }
  ]
}