{
  "document": {
    "acknowledgments": [
      {
        "organization": "Siemens",
        "summary": "reporting this vulnerability to CISA"
      }
    ],
    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "distribution": {
      "text": "Disclosure is not limited",
      "tlp": {
        "label": "WHITE",
        "url": "https://us-cert.cisa.gov/tlp/"
      }
    },
    "lang": "en-US",
    "notes": [
      {
        "category": "general",
        "text": "This CSAF advisory was extracted from unstructured data and may contain inaccuracies. If you notice any errors, please reach out to the designated contact at CISA CSAF: central@cisa.dhs.gov",
        "title": "CISA Disclaimer"
      },
      {
        "category": "legal_disclaimer",
        "text": "All information products included in https://us-cert.cisa.gov/ics are provided \"as is\" for informational purposes only. The Department of Homeland Security (DHS) does not provide any warranties of any kind regarding any information contained within. DHS does not endorse any commercial product or service, referenced in this product or otherwise. Further dissemination of this product is governed by the Traffic Light Protocol (TLP) marking in the header. For more information about TLP, see https://us-cert.cisa.gov/tlp/.",
        "title": "Legal Notice"
      },
      {
        "category": "summary",
        "text": "Successful Exploitation of this vulnerability could allow an attacker to bypass XPath constraints and retrieve information using XPath queries that trigger errors.",
        "title": "Risk evaluation"
      },
      {
        "category": "other",
        "text": "Multiple",
        "title": "Critical infrastructure sectors"
      },
      {
        "category": "other",
        "text": "Worldwide",
        "title": "Countries/areas deployed"
      },
      {
        "category": "other",
        "text": "Germany",
        "title": "Company headquarters location"
      },
      {
        "category": "general",
        "text": "CISA recommends users take defensive measures to minimize the risk of exploitation of this vulnerability. Specifically, users should:",
        "title": "Recommended Practices"
      },
      {
        "category": "general",
        "text": "Minimize network exposure for all control system devices and/or systems, and ensure they are not accessible from the Internet.",
        "title": "Recommended Practices"
      },
      {
        "category": "general",
        "text": "Locate control system networks and remote devices behind firewalls and isolate them from business networks.",
        "title": "Recommended Practices"
      },
      {
        "category": "general",
        "text": "When remote access is required, use secure methods, such as Virtual Private Networks (VPNs), recognizing VPNs may have vulnerabilities and should be updated to the most current version available. Also recognize VPN is only as secure as its connected devices.",
        "title": "Recommended Practices"
      },
      {
        "category": "general",
        "text": "CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures.",
        "title": "Recommended Practices"
      },
      {
        "category": "general",
        "text": "CISA also provides a section for control systems security recommended practices on the ICS webpage at cisa.gov/ics. Several CISA products detailing cyber defense best practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies.",
        "title": "Recommended Practices"
      },
      {
        "category": "general",
        "text": "Additional mitigation guidance and recommended practices are publicly available on the ICS webpage at cisa.gov/ics in the technical information paper, ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation Strategies.",
        "title": "Recommended Practices"
      },
      {
        "category": "general",
        "text": "Organizations observing suspected malicious activity should follow established internal procedures and report findings to CISA for tracking and correlation against other incidents.",
        "title": "Recommended Practices"
      },
      {
        "category": "general",
        "text": "No known public exploits specifically target this vulnerability. This vulnerability has a high attack complexity.",
        "title": "Recommended Practices"
      },
      {
        "category": "general",
        "text": "Recipients of this report are encouraged to contribute any additional information they may have related to this threat. Include the reference number in the subject line of all email correspondence. For any questions related to this report, please contact CISA:",
        "title": "Recommended Practices"
      },
      {
        "category": "general",
        "text": "Phone: +1-888-282-0870",
        "title": "Recommended Practices"
      },
      {
        "category": "general",
        "text": "Email: CISAservicedesk@cisa.dhs.gov",
        "title": "Recommended Practices"
      },
      {
        "category": "general",
        "text": "CISA continuously strives to improve its products and services. You can help by answering a few short questions about this product at https://www.cisa.gov/uscert/forms/feedback",
        "title": "Recommended Practices"
      },
      {
        "category": "general",
        "text": "For further inquiries on security vulnerabilities in Siemens products and solutions, please contact the Siemens ProductCERT: https://www.siemens.com/cert/advisories",
        "title": "Additional Resources"
      }
    ],
    "publisher": {
      "category": "coordinator",
      "contact_details": "Email: CISAservicedesk@cisa.dhs.gov;\n Toll Free: 1-888-282-0870",
      "name": "CISA",
      "namespace": "https://www.cisa.gov/"
    },
    "references": [
      {
        "category": "external",
        "summary": "SSA-252808: XPath Constraint Vulnerability in Mendix Runtime - CSAF Version",
        "url": "https://cert-portal.siemens.com/productcert/csaf/ssa-252808.json"
      },
      {
        "category": "self",
        "summary": "ICS Advisory ICSA-23-047-11 JSON",
        "url": "https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/OT/white/2023/icsa-23-047-11.json"
      },
      {
        "category": "self",
        "summary": "ICS Advisory ICSA-23-047-11 Web Version",
        "url": "https://www.cisa.gov/news-events/ics-advisories/icsa-23-047-11"
      },
      {
        "category": "external",
        "summary": "Recommended Practices",
        "url": "https://www.cisa.gov/uscert/ics/alerts/ICS-ALERT-10-301-01"
      },
      {
        "category": "external",
        "summary": "Recommended Practices",
        "url": "https://us-cert.cisa.gov/ics/Recommended-Practices"
      },
      {
        "category": "external",
        "summary": "Recommended Practices",
        "url": "https://cisa.gov/ics"
      },
      {
        "category": "external",
        "summary": "Recommended Practices",
        "url": "mailto:cisaservicedesk@cisa.dhs.gov"
      },
      {
        "category": "external",
        "summary": "Recommended Practices",
        "url": "https://www.cisa.gov/uscert/forms/feedback"
      },
      {
        "category": "external",
        "summary": "SSA-252808: XPath Constraint Vulnerability in Mendix Runtime - PDF Version",
        "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-252808.pdf"
      },
      {
        "category": "external",
        "summary": "SSA-252808: XPath Constraint Vulnerability in Mendix Runtime - TXT Version",
        "url": "https://cert-portal.siemens.com/productcert/txt/ssa-252808.txt"
      }
    ],
    "title": "Siemens Mendix",
    "tracking": {
      "current_release_date": "2023-02-20T16:14:40.073822Z",
      "generator": {
        "engine": {
          "name": "CISA CSAF Generator",
          "version": "1.0.0"
        }
      },
      "id": "ICSA-23-047-11",
      "initial_release_date": "2023-02-20T16:14:40.073822Z",
      "revision_history": [
        {
          "date": "2023-02-20T16:14:40.073822Z",
          "legacy_version": "1",
          "number": "1",
          "summary": "CSAF Creation Date"
        }
      ],
      "status": "final",
      "version": "1"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c V7.23.34",
                "product": {
                  "name": "Mendix Applications using Mendix 7",
                  "product_id": "CSAFPID-0001"
                }
              }
            ],
            "category": "product_name",
            "name": "Mendix Applications using Mendix 7"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c V8.18.23",
                "product": {
                  "name": "Mendix Applications using Mendix 8",
                  "product_id": "CSAFPID-0002"
                }
              }
            ],
            "category": "product_name",
            "name": "Mendix Applications using Mendix 8"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c V9.22.0",
                "product": {
                  "name": "Mendix Applications using Mendix 9",
                  "product_id": "CSAFPID-0003"
                }
              }
            ],
            "category": "product_name",
            "name": "Mendix Applications using Mendix 9"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c V9.12.10",
                "product": {
                  "name": "Mendix Applications using Mendix 9 (V9.12)",
                  "product_id": "CSAFPID-0004"
                }
              }
            ],
            "category": "product_name",
            "name": "Mendix Applications using Mendix 9 (V9.12)"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c V9.18.4",
                "product": {
                  "name": "Mendix Applications using Mendix 9 (V9.18)",
                  "product_id": "CSAFPID-0005"
                }
              }
            ],
            "category": "product_name",
            "name": "Mendix Applications using Mendix 9 (V9.18)"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c V9.6.15",
                "product": {
                  "name": "Mendix Applications using Mendix 9 (V9.6)",
                  "product_id": "CSAFPID-0006"
                }
              }
            ],
            "category": "product_name",
            "name": "Mendix Applications using Mendix 9 (V9.6)"
          }
        ],
        "category": "vendor",
        "name": "Siemens"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2023-23835",
      "cwe": {
        "id": "CWE-284",
        "name": "Improper Access Control"
      },
      "notes": [
        {
          "category": "summary",
          "text": "Some of the Mendix runtime API\u2019s allow attackers to bypass XPath constraints and retrieve information using XPath queries that trigger errors.",
          "title": "Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "CSAFPID-0001",
          "CSAFPID-0002",
          "CSAFPID-0003",
          "CSAFPID-0004",
          "CSAFPID-0005",
          "CSAFPID-0006"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "nvd.nist.gov",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-23835"
        },
        {
          "category": "external",
          "summary": "www.first.org",
          "url": "https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "Update to V7.23.34 or later version and redeploy your application",
          "product_ids": [
            "CSAFPID-0001"
          ],
          "url": "https://docs.mendix.com/releasenotes/studio-pro/7.23/"
        },
        {
          "category": "vendor_fix",
          "details": "Update to V8.18.23 or later version and redeploy your application",
          "product_ids": [
            "CSAFPID-0002"
          ],
          "url": "https://docs.mendix.com/releasenotes/studio-pro/8.18/"
        },
        {
          "category": "vendor_fix",
          "details": "Update to V9.18.4 or later version and redeploy your application",
          "product_ids": [
            "CSAFPID-0005"
          ],
          "url": "https://docs.mendix.com/releasenotes/studio-pro/9.18/"
        },
        {
          "category": "vendor_fix",
          "details": "Update to V9.12.10 or later version and redeploy your application",
          "product_ids": [
            "CSAFPID-0004"
          ],
          "url": "https://docs.mendix.com/releasenotes/studio-pro/9.12/"
        },
        {
          "category": "vendor_fix",
          "details": "Update to V9.6.15 or later version and redeploy your application",
          "product_ids": [
            "CSAFPID-0006"
          ],
          "url": "https://docs.mendix.com/releasenotes/studio-pro/9.6/"
        },
        {
          "category": "vendor_fix",
          "details": "Update to V9.22.0 or later version and redeploy your application",
          "product_ids": [
            "CSAFPID-0003"
          ],
          "url": "https://docs.mendix.com/releasenotes/studio-pro/9/"
        },
        {
          "category": "mitigation",
          "details": "As a general security measure, Siemens strongly recommends to protect network access to devices with appropriate mechanisms. In order to operate the devices in a protected IT environment, Siemens recommends to configure the environment according to Siemens\u0027 operational guidelines for Industrial Security (Download: \nhttps://www.siemens.com/cert/operational-guidelines-industrial-security), and to follow the recommendations in the product manuals.\nAdditional information on Industrial Security by Siemens can be found at: \nhttps://www.siemens.com/industrialsecurity",
          "product_ids": [
            "CSAFPID-0001",
            "CSAFPID-0002",
            "CSAFPID-0003",
            "CSAFPID-0004",
            "CSAFPID-0005",
            "CSAFPID-0006"
          ]
        }
      ],
      "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/E:P/RL:O/RC:C",
            "version": "3.1"
          },
          "products": [
            "CSAFPID-0001",
            "CSAFPID-0002",
            "CSAFPID-0003",
            "CSAFPID-0004",
            "CSAFPID-0005",
            "CSAFPID-0006"
          ]
        }
      ],
      "title": "CVE-2023-23835"
    }
  ]
}