csaf_opcfoundation:opc-2025-02-09t00:00:00z

{
  "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-2024-42512",
    "tracking": {
      "current_release_date": "2025-02-09T00:00:00Z",
      "id": "OPC-2025-02-09T00:00:00Z",
      "initial_release_date": "2025-02-09T00:00:00Z",
      "revision_history": [
        {
          "date": "2025-02-09T00:00:00Z",
          "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 <1.5.374.158",
          "product_id": "CSAFPID-01"
        }
      }
    ]
  },
  "vulnerabilities": [
    {
      "acknowledgments": [
        {
          "names": [
            "Tom Tervoort"
          ],
          "organization": "Secura B.V.",
          "summary": "Reported the issue."
        }
      ],
      "cve": "CVE-2024-42512",
      "cwe": {
        "id": "CWE-208",
        "name": "Observable Timing Discrepancy"
      },
      "discovery_date": "2025-02-09T00:00:00Z",
      "ids": [
        {
          "system_name": "GCVE",
          "text": "GCVE-105-2024-42512"
        }
      ],
      "involvements": [
        {
          "party": "vendor",
          "status": "completed"
        }
      ],
      "references": [
        {
          "summary": "PDF version",
          "url": "https://files.opcfoundation.org/SecurityBulletins/OPC%20Foundation%20Security%20Bulletin%20CVE-2024-42512.pdf"
        },
        {
          "summary": "CVE record",
          "url": "https://www.cve.org/CVERecord?id=CVE-2024-42512"
        },
        {
          "summary": "Patch version",
          "url": "https://github.com/OPCFoundation/UA-.NETStandard/tree/1.5.374.158"
        },
        {
          "summary": "CWE-208: Observable Timing Discrepancy",
          "url": "https://cwe.mitre.org/data/definitions/208.html"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "Update to OPC UA .NET Standard Stack version 1.5.374.158 or later.",
          "product_ids": [
            "CSAFPID-01"
          ],
          "url": "https://github.com/OPCFoundation/UA-.NETStandard/tree/1.5.374.158"
        },
        {
          "category": "workaround",
          "details": "Disable the Basic128Rsa15 security policy.",
          "product_ids": [
            "CSAFPID-01"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 5.9,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
            "version": "3.1"
          },
          "products": [
            "CSAFPID-01"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Unauthorized attacker can bypass application authentication when Basic128Rsa15 is enabled. Most users unaffected as it is disabled by default."
        }
      ],
      "title": "Bypass of application authentication via Basic128Rsa15 in OPC UA .NET Standard Stack"
    }
  ]
}