{
  "document": {
    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "distribution": {
      "text": "Disclosure is not limited. (TLPv2: TLP:CLEAR)",
      "tlp": {
        "label": "WHITE"
      }
    },
    "lang": "en",
    "notes": [
      {
        "category": "summary",
        "text": "Mendix Runtime contains an observable response discrepancy vulnerability when validating usernames during authentication. This could allow unauthenticated remote attackers to distinguish between valid and invalid usernames.\n\nSiemens has released new versions for the affected products and recommends to update to the latest versions.",
        "title": "Summary"
      },
      {
        "category": "general",
        "text": "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",
        "title": "General Recommendations"
      },
      {
        "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"
      },
      {
        "category": "legal_disclaimer",
        "text": "The use of Siemens Security Advisories is subject to the terms and conditions listed on: https://www.siemens.com/productcert/terms-of-use.",
        "title": "Terms of Use"
      }
    ],
    "publisher": {
      "category": "vendor",
      "contact_details": "productcert@siemens.com",
      "name": "Siemens ProductCERT",
      "namespace": "https://www.siemens.com"
    },
    "references": [
      {
        "category": "self",
        "summary": "SSA-097435: Usernames Disclosure Vulnerability in Mendix Runtime - HTML Version",
        "url": "https://cert-portal.siemens.com/productcert/html/ssa-097435.html"
      },
      {
        "category": "self",
        "summary": "SSA-097435: Usernames Disclosure Vulnerability in Mendix Runtime - CSAF Version",
        "url": "https://cert-portal.siemens.com/productcert/csaf/ssa-097435.json"
      }
    ],
    "title": "SSA-097435: Usernames Disclosure Vulnerability in Mendix Runtime",
    "tracking": {
      "current_release_date": "2024-11-26T00:00:00Z",
      "generator": {
        "engine": {
          "name": "Siemens ProductCERT CSAF Generator",
          "version": "1"
        }
      },
      "id": "SSA-097435",
      "initial_release_date": "2024-09-10T00:00:00Z",
      "revision_history": [
        {
          "date": "2024-09-10T00:00:00Z",
          "legacy_version": "1.0",
          "number": "1",
          "summary": "Publication Date"
        },
        {
          "date": "2024-09-12T00:00:00Z",
          "legacy_version": "1.1",
          "number": "2",
          "summary": "Added fix for Mendix Runtime V8; updated Acknowledgements"
        },
        {
          "date": "2024-10-08T00:00:00Z",
          "legacy_version": "1.2",
          "number": "3",
          "summary": "Fixed a bug in the csaf output"
        },
        {
          "date": "2024-10-10T00:00:00Z",
          "legacy_version": "1.3",
          "number": "4",
          "summary": "Corrected fix version information for all Mendix Runtime version lines (fix releases not yet available, except for V8)"
        },
        {
          "date": "2024-11-12T00:00:00Z",
          "legacy_version": "1.4",
          "number": "5",
          "summary": "Added fix releases for remaining Mendix Runtime version lines"
        },
        {
          "date": "2024-11-26T00:00:00Z",
          "legacy_version": "1.5",
          "number": "6",
          "summary": "Added information about additional required actions after having installed a fix release"
        }
      ],
      "status": "final",
      "version": "6"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:all/\u003cV8.18.32",
                "product": {
                  "name": "Mendix Runtime V8",
                  "product_id": "1"
                }
              }
            ],
            "category": "product_name",
            "name": "Mendix Runtime V8"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:all/\u003cV9.24.29",
                "product": {
                  "name": "Mendix Runtime V9",
                  "product_id": "2"
                }
              }
            ],
            "category": "product_name",
            "name": "Mendix Runtime V9"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:all/\u003cV10.16.0",
                "product": {
                  "name": "Mendix Runtime V10",
                  "product_id": "3"
                }
              }
            ],
            "category": "product_name",
            "name": "Mendix Runtime V10"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:all/\u003cV10.6.16",
                "product": {
                  "name": "Mendix Runtime V10.6",
                  "product_id": "4"
                }
              }
            ],
            "category": "product_name",
            "name": "Mendix Runtime V10.6"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:all/\u003cV10.12.7",
                "product": {
                  "name": "Mendix Runtime V10.12",
                  "product_id": "5"
                }
              }
            ],
            "category": "product_name",
            "name": "Mendix Runtime V10.12"
          }
        ],
        "category": "vendor",
        "name": "Siemens"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2023-49069",
      "cwe": {
        "id": "CWE-204",
        "name": "Observable Response Discrepancy"
      },
      "notes": [
        {
          "category": "summary",
          "text": "The authentication mechanism of affected applications contains an observable response discrepancy vulnerability when validating usernames. This could allow unauthenticated remote attackers to distinguish between valid and invalid usernames.",
          "title": "Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "3",
          "5",
          "4",
          "1",
          "2"
        ]
      },
      "remediations": [
        {
          "category": "mitigation",
          "details": "Do not use basic authentication, but setup an alternative authentication module (e.g. SAML, MendixSSO), or your own Identity Provider (IDP)",
          "product_ids": [
            "3",
            "5",
            "4",
            "1",
            "2"
          ]
        },
        {
          "category": "vendor_fix",
          "details": "Update to V8.18.32 or later version. Note that after installing the fix version, the issue still occurs and is only fully resolved after a first successful login. A successful login is also required after every app restart.",
          "product_ids": [
            "1"
          ]
        },
        {
          "category": "vendor_fix",
          "details": "Update to V9.24.29 or later version. Note that after installing the fix version, the issue still occurs and is only fully resolved after a first successful login. A successful login is also required after every app restart.",
          "product_ids": [
            "2"
          ]
        },
        {
          "category": "vendor_fix",
          "details": "Update to V10.16.0 or later version. Note that after installing the fix version, the issue still occurs and is only fully resolved after a first successful login. A successful login is also required after every app restart.",
          "product_ids": [
            "3"
          ]
        },
        {
          "category": "vendor_fix",
          "details": "Update to V10.6.16 or later version. Note that after installing the fix version, the issue still occurs and is only fully resolved after a first successful login. A successful login is also required after every app restart.",
          "product_ids": [
            "4"
          ]
        },
        {
          "category": "vendor_fix",
          "details": "Update to V10.12.7 or later version. Note that after installing the fix version, the issue still occurs and is only fully resolved after a first successful login. A successful login is also required after every app restart.",
          "product_ids": [
            "5"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
            "version": "3.1"
          },
          "products": [
            "3",
            "5",
            "4",
            "1",
            "2"
          ]
        }
      ],
      "title": "CVE-2023-49069"
    }
  ]
}