{
  "document": {
    "acknowledgments": [
      {
        "organization": "Siemens",
        "summary": "reported 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": "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": "other",
        "text": "This CISA CSAF advisory was converted from Siemens ProductCERT\u0027s TXT advisory.",
        "title": "Advisory Conversion Disclaimer"
      },
      {
        "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 exploitation risk of this vulnerability.",
        "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 more secure methods, such as Virtual Private Networks (VPNs), recognizing VPNs may have vulnerabilities and should be updated to the most recent 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 on cisa.gov. 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": "CISA encourages organizations to implement recommended cybersecurity strategies for proactive defense of ICS assets. Additional mitigation guidance and recommended practices are publicly available on the ICS webpage at cisa.gov 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": "As a general security measure Siemens strongly recommends to protectnetwork access with appropriate mechanisms (e.g. firewalls,segmentation, VPN). It is advised to configure the environment accordingto our operational guidelines in order to run the devices in a protectedIT environment.",
        "title": "General Recommendations"
      },
      {
        "category": "general",
        "text": "Recommended security guidelines to Secure Substations can be found at:https://www.siemens.com/gridsecurity",
        "title": "General Recommendations"
      },
      {
        "category": "legal_disclaimer",
        "text": "Siemens Security Advisories are subject to the terms and conditions containedin Siemens\u0027 underlying license terms or other applicable agreements previouslyagreed to with Siemens (hereinafter \"License Terms\"). To the extent applicableto information, software or documentation made available in or through aSiemens Security Advisory, the Terms of Use of Siemens\u0027 Global Website(https://www.siemens.com/terms_of_use, hereinafter \"Terms of Use\"), inparticular Sections 8-10 of the Terms of Use, shall apply additionally. In caseof conflicts, the License Terms shall prevail over the Terms of Use.",
        "title": "Terms of Use"
      }
    ],
    "publisher": {
      "category": "coordinator",
      "contact_details": "central@cisa.dhs.gov;\n Toll Free: 1-888-282-0870",
      "name": "CISA",
      "namespace": "https://www.cisa.gov/"
    },
    "references": [
      {
        "category": "self",
        "summary": "SSA-579309: Denial-of-Service in SICAM A8000 Series",
        "url": "https://cert-portal.siemens.com/productcert/txt/ssa-579309.txt"
      },
      {
        "category": "self",
        "summary": "ICS Advisory ICSA-19-038-01 JSON",
        "url": "https://raw.githubusercontent.com/cisagov/CSAF/refs/heads/develop/csaf_files/OT/white/2019/icsa-19-038-01.json"
      },
      {
        "category": "self",
        "summary": "ICSA Advisory ICSA-19-038-01 - Web Version",
        "url": "https://www.cisa.gov/news-events/ics-advisories/icsa-19-038-01"
      },
      {
        "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/resources-tools/resources/ics-recommended-practices"
      },
      {
        "category": "external",
        "summary": "Recommended Practices",
        "url": "https://www.cisa.gov/sites/default/files/publications/Cybersecurity_Best_Practices_for_Industrial_Control_Systems.pdf"
      },
      {
        "category": "external",
        "summary": "Recommended Practices",
        "url": "https://www.cisa.gov/topics/industrial-control-systems"
      },
      {
        "category": "external",
        "summary": "Recommended Practices",
        "url": "https://us-cert.cisa.gov/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"
      }
    ],
    "title": "ICSA-19-038-01 Siemens SICAM A8000 RTU Series",
    "tracking": {
      "current_release_date": "2019-02-12T00:00:00.000000Z",
      "generator": {
        "engine": {
          "name": "CISA CSAF Generator",
          "version": "1.0.0"
        }
      },
      "id": "ICSA-19-038-01",
      "initial_release_date": "2019-01-08T00:00:00.000000Z",
      "revision_history": [
        {
          "date": "2019-01-08T00:00:00.000000Z",
          "legacy_version": "1.0",
          "number": "1",
          "summary": "Publication Date"
        },
        {
          "date": "2019-02-12T00:00:00.000000Z",
          "legacy_version": "1.1",
          "number": "2",
          "summary": "Adapted CVSS vector due to known exploit"
        }
      ],
      "status": "final",
      "version": "2"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003cV14",
                "product": {
                  "name": "SICAM A8000 CP-8000",
                  "product_id": "CSAFPID-0001"
                }
              }
            ],
            "category": "product_name",
            "name": "SICAM A8000 CP-8000"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003cV14",
                "product": {
                  "name": "SICAM A8000 CP-802X",
                  "product_id": "CSAFPID-0002"
                }
              }
            ],
            "category": "product_name",
            "name": "SICAM A8000 CP-802X"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003cV2.00",
                "product": {
                  "name": "SICAM A8000 CP-8050",
                  "product_id": "CSAFPID-0003"
                }
              }
            ],
            "category": "product_name",
            "name": "SICAM A8000 CP-8050"
          }
        ],
        "category": "vendor",
        "name": "Siemens"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2018-13798",
      "cwe": {
        "id": "CWE-248",
        "name": "Uncaught Exception"
      },
      "notes": [
        {
          "category": "summary",
          "text": "Specially crafted network packets sent to port 80/TCP or 443/TCP could allow an unauthenticated remote attacker to cause a Denial-of-Service condition of the web server. The security vulnerability could be exploited by an attacker with network access to the affected systems on port 80/TCP or 443/TCP. Successful exploitation requires no system privileges and no user interaction. An attacker could use the vulnerability to compromise availability of the web server. A system reboot is required to recover the web service of the device. At the time of advisory update, exploit code for this security vulnerability is public.",
          "title": "Vulnerability Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "CSAFPID-0001",
          "CSAFPID-0002",
          "CSAFPID-0003"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "web.nvd.nist.gov",
          "url": "http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2018-13798"
        },
        {
          "category": "external",
          "summary": "www.first.org",
          "url": "https://www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:H/RL:O/RC:C"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "Update to V14 - Download: https://support.industry.siemens.com/cs/search?search=a8000%20cp8000",
          "product_ids": [
            "CSAFPID-0001"
          ],
          "url": "https://support.industry.siemens.com/cs/search"
        },
        {
          "category": "vendor_fix",
          "details": "Update to V14 - Download: https://support.industry.siemens.com/cs/search?search=a8000%20cp8000",
          "product_ids": [
            "CSAFPID-0002"
          ],
          "url": "https://support.industry.siemens.com/cs/search"
        },
        {
          "category": "vendor_fix",
          "details": "Update to V2.00 or higher - Download: https://support.industry.siemens.com/cs/search?search=a8000%20cp8050",
          "product_ids": [
            "CSAFPID-0003"
          ],
          "url": "https://support.industry.siemens.com/cs/search"
        },
        {
          "category": "mitigation",
          "details": "Siemens has identified the following specific workarounds and mitigations thatcustomers can apply to reduce the risk:external firewall. Limit access to the web server on port 80/TCP and 443/TCP with an",
          "product_ids": [
            "CSAFPID-0001",
            "CSAFPID-0002",
            "CSAFPID-0003"
          ]
        },
        {
          "category": "mitigation",
          "details": "Siemens has identified the following specific workarounds and mitigations thatcustomers can apply to reduce the risk:external firewall. Apply a Defence-in-Depth strategy.",
          "product_ids": [
            "CSAFPID-0001",
            "CSAFPID-0002",
            "CSAFPID-0003"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:H/RL:O/RC:C",
            "version": "3.0"
          },
          "products": [
            "CSAFPID-0001",
            "CSAFPID-0002",
            "CSAFPID-0003"
          ]
        }
      ]
    }
  ]
}