{
  "document": {
    "acknowledgments": [
      {
        "organization": "CERT@VDE",
        "summary": "coordination",
        "urls": [
          "https://certvde.com"
        ]
      },
      {
        "organization": "Maxim Rupp",
        "summary": "reporting",
        "urls": [
          "https://rupp.it/"
        ]
      }
    ],
    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "distribution": {
      "tlp": {
        "label": "WHITE",
        "url": "https://www.first.org/tlp/"
      }
    },
    "lang": "en-GB",
    "notes": [
      {
        "category": "summary",
        "text": "After login the source IP is used as the session identifier, so that users sharing the same source IP are able to gain full authenticated access to the WEB-UI.\n\nThe access attempt will only be successful if the former authorized session has not been terminated by the authorized user or by session timeout.",
        "title": "Summary"
      },
      {
        "category": "description",
        "text": "If an unauthorized user manages to get access as described above, he gains full access to the device configuration.",
        "title": "Impact"
      },
      {
        "category": "description",
        "text": "Customers using Phoenix Contact FL NAT SMx devices are recommended to operate the devices in closed networks or protected with a suitable firewall.\\\nFor detailed information on our  recommendations for measures to protect network-capable devices, please refer to the [application note:](https://www.phoenixcontact.com/assets/downloads_ed/local_pc/web_dwl_technical_info/ah_en_industrial_security_107913_en_01.pdf)\n\nTo protect the device from an attacker who has gained access to the closed network, or if there is a possibility that multiple users might share a VPN connection with a single endpoint IP, it might be considered to:\n\nlog off from the WEB-UI immediately after administration\\\ndisable the WEB-UI and use configuration access via SNMP instead",
        "title": "Mitigation"
      }
    ],
    "publisher": {
      "category": "vendor",
      "contact_details": "psirt@phoenixcontact.com",
      "name": "Phoenix Contact GmbH \u0026 Co. KG",
      "namespace": "https://phoenixcontact.com/psirt"
    },
    "references": [
      {
        "category": "external",
        "summary": "CERT@VDE Security Advisories for Phoenix Contact",
        "url": "https://certvde.com/en/advisories/vendor/phoenixcontact"
      },
      {
        "category": "self",
        "summary": "VDE-2019-006: PHOENIX CONTACT: unauthorized access to WEB-UI on FL NAT SMx - HTML",
        "url": "https://certvde.com/en/advisories/VDE-2019-006"
      },
      {
        "category": "self",
        "summary": "VDE-2019-006: PHOENIX CONTACT: unauthorized access to WEB-UI on FL NAT SMx - CSAF",
        "url": "https://phoenixcontact.csaf-tp.certvde.com/.well-known/csaf/white/2019/vde-2019-006.json"
      }
    ],
    "title": "PHOENIX CONTACT: unauthorized access to WEB-UI on FL NAT SMx",
    "tracking": {
      "aliases": [
        "VDE-2019-006"
      ],
      "current_release_date": "2025-05-14T12:28:19.000Z",
      "generator": {
        "date": "2024-08-01T11:45:03.988Z",
        "engine": {
          "name": "Secvisogram",
          "version": "2.5.9"
        }
      },
      "id": "VDE-2019-006",
      "initial_release_date": "2019-03-25T11:40:00.000Z",
      "revision_history": [
        {
          "date": "2019-03-25T11:40:00.000Z",
          "number": "1",
          "summary": "Initial revision."
        },
        {
          "date": "2024-11-06T11:27:01.000Z",
          "number": "2",
          "summary": "Fix: correct certvde domain, added alias, added self-reference"
        },
        {
          "date": "2025-05-14T12:28:19.000Z",
          "number": "3",
          "summary": "Fix: version term, added distribution"
        }
      ],
      "status": "final",
      "version": "3"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "branches": [
                  {
                    "category": "product_name",
                    "name": "SMCS 8TX",
                    "product": {
                      "name": "FL NAT SMCS 8TX",
                      "product_id": "CSAFPID-11001"
                    }
                  },
                  {
                    "category": "product_name",
                    "name": "SMN 8TX",
                    "product": {
                      "name": "FL NAT SMN 8TX",
                      "product_id": "CSAFPID-11002"
                    }
                  },
                  {
                    "category": "product_name",
                    "name": "SMN 8TX-M",
                    "product": {
                      "name": "FL NAT SMN 8TX-M",
                      "product_id": "CSAFPID-11003"
                    }
                  },
                  {
                    "category": "product_name",
                    "name": "SMN 8TX-M-DMG",
                    "product": {
                      "name": "FL NAT SMN 8TX-M-DMG",
                      "product_id": "CSAFPID-11004"
                    }
                  }
                ],
                "category": "product_family",
                "name": "FL NAT"
              }
            ],
            "category": "product_family",
            "name": "Hardware"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:all/*",
                "product": {
                  "name": "Firmware all versions",
                  "product_id": "CSAFPID-21001"
                }
              }
            ],
            "category": "product_family",
            "name": "Firmware"
          }
        ],
        "category": "vendor",
        "name": "PHOENIX CONTACT"
      }
    ],
    "product_groups": [
      {
        "group_id": "CSAFGID-0001",
        "product_ids": [
          "CSAFPID-31001",
          "CSAFPID-31002",
          "CSAFPID-31003",
          "CSAFPID-31004"
        ],
        "summary": "Affected products."
      }
    ],
    "relationships": [
      {
        "category": "installed_on",
        "full_product_name": {
          "name": "Firmware all versions installed on FL NAT SMCS 8TX",
          "product_id": "CSAFPID-31001"
        },
        "product_reference": "CSAFPID-21001",
        "relates_to_product_reference": "CSAFPID-11001"
      },
      {
        "category": "installed_on",
        "full_product_name": {
          "name": "Firmware all versions installed on FL NAT SMN 8TX",
          "product_id": "CSAFPID-31002"
        },
        "product_reference": "CSAFPID-21001",
        "relates_to_product_reference": "CSAFPID-11002"
      },
      {
        "category": "installed_on",
        "full_product_name": {
          "name": " Firmware all versions installed on FL NAT SMN 8TX-M",
          "product_id": "CSAFPID-31003"
        },
        "product_reference": "CSAFPID-21001",
        "relates_to_product_reference": "CSAFPID-11003"
      },
      {
        "category": "installed_on",
        "full_product_name": {
          "name": " Firmware all versions installed on FL NAT SMN 8TX-M-DMG",
          "product_id": "CSAFPID-31004"
        },
        "product_reference": "CSAFPID-21001",
        "relates_to_product_reference": "CSAFPID-11004"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2019-9744",
      "cwe": {
        "id": "CWE-284",
        "name": "Improper Access Control"
      },
      "notes": [
        {
          "audience": "all",
          "category": "description",
          "text": "An issue was discovered on PHOENIX CONTACT FL NAT SMCS 8TX, FL NAT SMN 8TX, FL NAT SMN 8TX-M, and FL NAT SMN 8TX-M-DMG devices. There is unauthorized access to the WEB-UI by attackers arriving from the same source IP address as an authenticated user, because this IP address is used as a session identifier.",
          "title": "Vulnerability Description"
        }
      ],
      "product_status": {
        "known_affected": [
          "CSAFPID-31001",
          "CSAFPID-31002",
          "CSAFPID-31003",
          "CSAFPID-31004"
        ]
      },
      "remediations": [
        {
          "category": "mitigation",
          "details": "Customers using Phoenix Contact FL NAT SMx devices are recommended to operate the devices in closed networks or protected with a suitable firewall.\\\nFor detailed information on our  recommendations for measures to protect network-capable devices, please refer to the [application note:](https://www.phoenixcontact.com/assets/downloads_ed/local_pc/web_dwl_technical_info/ah_en_industrial_security_107913_en_01.pdf)\n\nTo protect the device from an attacker who has gained access to the closed network, or if there is a possibility that multiple users might share a VPN connection with a single endpoint IP, it might be considered to:\n\nlog off from the WEB-UI immediately after administration\\\ndisable the WEB-UI and use configuration access via SNMP instead",
          "group_ids": [
            "CSAFGID-0001"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "environmentalScore": 8.8,
            "environmentalSeverity": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "temporalScore": 8.8,
            "temporalSeverity": "HIGH",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
            "version": "3.0"
          },
          "products": [
            "CSAFPID-31001",
            "CSAFPID-31002",
            "CSAFPID-31003",
            "CSAFPID-31004"
          ]
        }
      ],
      "title": "CVE-2019-9744"
    }
  ]
}