{
  "document": {
    "acknowledgments": [
      {
        "organization": "Siemens ProductCERT",
        "summary": "reporting this vulnerability to NCCIC"
      }
    ],
    "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 a remote attacker to exfiltrate limited data from the system or execute code with operating system user permissions.",
        "title": "Risk evaluation"
      },
      {
        "category": "other",
        "text": "Chemical, Critical Manufacturing, Energy, Food and Agriculture, Water and Wastewater Systems",
        "title": "Critical infrastructure sectors"
      },
      {
        "category": "other",
        "text": "Worldwide",
        "title": "Countries/areas deployed"
      },
      {
        "category": "other",
        "text": "Germany",
        "title": "Company headquarters location"
      },
      {
        "category": "general",
        "text": "NCCIC recommends users take defensive measures to minimize the risk of exploitation of this vulnerability. Specifically, users should:",
        "title": "Recommended Practices"
      },
      {
        "category": "general",
        "text": "NCCIC reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures.NCCIC also provides a section for control systems security recommended practices on the ICS-CERT web page. Several recommended 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-CERT website in the Technical Information Paper, ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation Strategies.Organizations observing any suspected malicious activity should follow their established internal procedures and report their findings to NCCIC for tracking and correlation against other incidents.",
        "title": "Recommended Practices"
      },
      {
        "category": "general",
        "text": "NCCIC also recommends that users take the following measures to protect themselves from social engineering attacks:",
        "title": "Recommended Practices"
      },
      {
        "category": "general",
        "text": "For further inquiries on security vulnerabilities in Siemens products and \nsolutions, please contact the Siemens ProductCERT:\n\nhttps://www.siemens.com/cert/advisories",
        "title": "Additional Resources"
      },
      {
        "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": "other",
        "text": "No known public exploits specifically target this vulnerability. High skill level is needed to exploit.",
        "title": "Exploitability"
      }
    ],
    "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": "self",
        "summary": "ICS Advisory ICSA-18-317-01 JSON",
        "url": "https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/OT/white/2018/icsa-18-317-01.json"
      },
      {
        "category": "self",
        "summary": "ICS Advisory ICSA-18-317-01 Web Version",
        "url": "https://www.cisa.gov/news-events/ics-advisories/icsa-18-317-01"
      },
      {
        "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://www.cisa.gov/uscert/sites/default/files/recommended_practices/NCCIC_ICS-CERT_Defense_in_Depth_2016_S508C.pdf"
      },
      {
        "category": "external",
        "summary": "Recommended Practices",
        "url": "https://www.cisa.gov/uscert/ics/tips/ICS-TIP-12-146-01B"
      },
      {
        "category": "external",
        "summary": "Recommended Practices",
        "url": "https://www.cisa.gov/news-events/ics-advisories/icsa-18-317-01"
      },
      {
        "category": "external",
        "summary": "SSA-496604: SSA-159860: Access Control Vulnerability in IEC 61850 system configurator, DIGSI 5, DIGSI 4, SICAM PAS/PQS, SICAM PQ Analyzer, and SICAM SCC - TXT Version",
        "url": "https://cert-portal.siemens.com/productcert/txt/SSA-159860.txt"
      }
    ],
    "title": "Siemens IEC 61850 System Configurator, DIGSI 5, DIGSI 4, SICAM PAS/PQS, SICAM PQ Analyzer, and SICAM SCC",
    "tracking": {
      "current_release_date": "2018-11-13T00:00:00.000000Z",
      "generator": {
        "engine": {
          "name": "CISA CSAF Generator",
          "version": "1.0.0"
        }
      },
      "id": "ICSA-18-317-01",
      "initial_release_date": "2018-11-13T00:00:00.000000Z",
      "revision_history": [
        {
          "date": "2018-11-13T00:00:00.000000Z",
          "legacy_version": "Initial",
          "number": "1",
          "summary": "ICSA-18-317-01 Siemens IEC 61850 System Configurator, DIGSI 5, DIGSI 4, SICAM PAS/PQS, SICAM PQ Analyzer, and SICAM SCC"
        }
      ],
      "status": "final",
      "version": "1"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "All versions \u003c V5.80",
                "product": {
                  "name": "IEC 61850 system configurator: All versions \u003c V5.80",
                  "product_id": "CSAFPID-0001"
                }
              }
            ],
            "category": "product_name",
            "name": "IEC 61850 system configurator"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "All versions \u003c V7.80",
                "product": {
                  "name": "DIGSI 5 (affected as IEC 61850 system configurator is incorporated): All versions \u003c V7.80",
                  "product_id": "CSAFPID-0002"
                }
              }
            ],
            "category": "product_name",
            "name": "DIGSI 5 (affected as IEC 61850 system configurator is incorporated)"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "All versions \u003c V4.93",
                "product": {
                  "name": "DIGSI 4: All versions \u003c V4.93",
                  "product_id": "CSAFPID-0003"
                }
              }
            ],
            "category": "product_name",
            "name": "DIGSI 4"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "All versions \u003c V8.11",
                "product": {
                  "name": "SICAM PAS/PQS: All versions \u003c V8.11",
                  "product_id": "CSAFPID-0004"
                }
              }
            ],
            "category": "product_name",
            "name": "SICAM PAS/PQS"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "All versions \u003c V3.11",
                "product": {
                  "name": "SICAM PQ Analyzer: All versions \u003c V3.11",
                  "product_id": "CSAFPID-0005"
                }
              }
            ],
            "category": "product_name",
            "name": "SICAM PQ Analyzer"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "All versions \u003c V9.02 HF3",
                "product": {
                  "name": "SICAM SCC: All versions \u003c V9.02 HF3",
                  "product_id": "CSAFPID-0006"
                }
              }
            ],
            "category": "product_name",
            "name": "SICAM SCC"
          }
        ],
        "category": "vendor",
        "name": "Siemens"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2018-4858",
      "cwe": {
        "id": "CWE-284",
        "name": "Improper Access Control"
      },
      "notes": [
        {
          "category": "summary",
          "text": "A service of the affected products listening on all of the host\u0027s network interfaces on either port 4884/TCP, 5885/TCP, or port 5886/TCP could allow an attacker to either exfiltrate limited data from the system or to execute code with Microsoft Windows user permissions.",
          "title": "Summary"
        },
        {
          "category": "summary",
          "text": "Successful exploitation requires an attacker to be able to send a specially crafted network request to the vulnerable service and a user interacting with the service\u2019s client application on the host. In order to execute arbitrary code with Microsoft Windows user permissions, an attacker must be able to plant the code in advance on the host by other means. The vulnerability has limited impact to confidentiality and integrity of the affected system.",
          "title": "Summary"
        },
        {
          "category": "summary",
          "text": "At the time of advisory publication no public exploitation of this security vulnerability was known. Siemens confirms the security vulnerability and provides mitigations to resolve the security issue.",
          "title": "Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "CSAFPID-0001",
          "CSAFPID-0002",
          "CSAFPID-0003",
          "CSAFPID-0004",
          "CSAFPID-0005",
          "CSAFPID-0006"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "https://support.industry.siemens.com/cs/ww/en/view/109745469",
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109745469"
        },
        {
          "category": "external",
          "summary": "web.nvd.nist.gov",
          "url": "http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2018-4858"
        },
        {
          "category": "external",
          "summary": "www.first.org",
          "url": "https://www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "Change firewall configuration to restrict access to port 4884/TCP,\n5885/TCP or 5886/TCP to localhost (depending on the affected product in\nuse).",
          "product_ids": [
            "CSAFPID-0001",
            "CSAFPID-0002",
            "CSAFPID-0003",
            "CSAFPID-0004",
            "CSAFPID-0005",
            "CSAFPID-0006"
          ]
        },
        {
          "category": "vendor_fix",
          "details": "Follow Secure Substations security guidelines\nhttps://www.siemens.com/gridsecurity",
          "product_ids": [
            "CSAFPID-0001",
            "CSAFPID-0002",
            "CSAFPID-0003",
            "CSAFPID-0004",
            "CSAFPID-0005",
            "CSAFPID-0006"
          ]
        },
        {
          "category": "vendor_fix",
          "details": "Update to V5.80 - Download: https://support.industry.siemens.com/cs/ww/en/view/109740546 ",
          "product_ids": [
            "CSAFPID-0001"
          ],
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109740546"
        },
        {
          "category": "vendor_fix",
          "details": "Uninstall IEC 61850 system configurator or update to V7.80 - Download: https://support.industry.siemens.com/cs/ww/en/view/109758531 ",
          "product_ids": [
            "CSAFPID-0002"
          ],
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109758531"
        },
        {
          "category": "vendor_fix",
          "details": "Update to V4.93 - Download: https://support.industry.siemens.com/cs/ww/en/view/109740980 ",
          "product_ids": [
            "CSAFPID-0003"
          ],
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109740980"
        },
        {
          "category": "vendor_fix",
          "details": "Update to V8.11 - Download: https://support.industry.siemens.com/cs/us/en/view/109757831 ",
          "product_ids": [
            "CSAFPID-0004"
          ],
          "url": "https://support.industry.siemens.com/cs/us/en/view/109757831"
        },
        {
          "category": "vendor_fix",
          "details": "Update to V3.11 - Download: https://support.industry.siemens.com/cs/us/en/view/109757833 ",
          "product_ids": [
            "CSAFPID-0005"
          ],
          "url": "https://support.industry.siemens.com/cs/us/en/view/109757833"
        },
        {
          "category": "vendor_fix",
          "details": "Update to V9.02 HF3 - Download: https://support.industry.siemens.com/cs/ww/en/view/109745469 ",
          "product_ids": [
            "CSAFPID-0006"
          ],
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109745469"
        },
        {
          "category": "mitigation",
          "details": "As a general security measure Siemens strongly recommends to protect network access with appropriate mechanisms (e.g. firewalls, segmentation, VPN). It is advised to configure the environment according to our operational guidelines in order to run the devices in a protected IT environment. Recommended security guidelines to Secure Substations can be found at: https://www.siemens.com/gridsecurity",
          "product_ids": [
            "CSAFPID-0001",
            "CSAFPID-0002",
            "CSAFPID-0003",
            "CSAFPID-0004",
            "CSAFPID-0005",
            "CSAFPID-0006"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 4.2,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N/E:P/RL:O/RC:C",
            "version": "3.0"
          },
          "products": [
            "CSAFPID-0001",
            "CSAFPID-0002",
            "CSAFPID-0003",
            "CSAFPID-0004",
            "CSAFPID-0005",
            "CSAFPID-0006"
          ]
        }
      ]
    }
  ]
}