{
  "document": {
    "acknowledgments": [
      {
        "organization": "CybExer Technologies",
        "summary": "reporting this vulnerability to Siemens"
      }
    ],
    "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": "\u202fSuccessful exploitation of this vulnerability could allow unauthenticated access to the web interface of the affected web server.",
        "title": "Risk evaluation"
      },
      {
        "category": "other",
        "text": "Energy",
        "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": "CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures.\nCISA also provides a section for control systems security recommended practices on the ICS webpage on cisa.gov. 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 webpage on cisa.gov in the Technical Information Paper, ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation Strategies.\nOrganizations observing any suspected malicious activity should follow their established internal procedures and report their findings to CISA for tracking and correlation against other incidents.",
        "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"
      },
      {
        "category": "other",
        "text": "No known public exploits specifically target these vulnerabilities.",
        "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": "external",
        "summary": "SSA-185638: Authentication Bypass Vulnerability in SICAM A8000 Web Server Module - CSAF Version",
        "url": "https://cert-portal.siemens.com/productcert/csaf/ssa-185638.json"
      },
      {
        "category": "self",
        "summary": "ICS Advisory ICSA-22-223-05 JSON",
        "url": "https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/OT/white/2022/icsa-22-223-05.json"
      },
      {
        "category": "self",
        "summary": "ICS Advisory ICSA-22-223-05 Web Version",
        "url": "https://www.cisa.gov/news-events/ics-advisories/icsa-22-223-05"
      },
      {
        "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": "SSA-185638: Authentication Bypass Vulnerability in SICAM A8000 Web Server Module - PDF Version",
        "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-185638.pdf"
      },
      {
        "category": "external",
        "summary": "SSA-185638: Authentication Bypass Vulnerability in SICAM A8000 Web Server Module - TXT Version",
        "url": "https://cert-portal.siemens.com/productcert/txt/ssa-185638.txt"
      }
    ],
    "title": "Siemens SICAM A8000 Web Server Module",
    "tracking": {
      "current_release_date": "2022-08-11T00:00:00.000000Z",
      "generator": {
        "engine": {
          "name": "CISA CSAF Generator",
          "version": "1.0.0"
        }
      },
      "id": "ICSA-22-223-05",
      "initial_release_date": "2022-08-11T00:00:00.000000Z",
      "revision_history": [
        {
          "date": "2022-08-11T00:00:00.000000Z",
          "legacy_version": "Initial",
          "number": "1",
          "summary": "Publication Date"
        }
      ],
      "status": "final",
      "version": "1"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:all/*",
                "product": {
                  "name": "CP-8000 MASTER MODULE WITH I/O -25/+70\u00b0C",
                  "product_id": "CSAFPID-0001",
                  "product_identification_helper": {
                    "model_numbers": [
                      "6MF2101-0AB10-0AA0"
                    ]
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "CP-8000 MASTER MODULE WITH I/O -25/+70\u00b0C"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:all/*",
                "product": {
                  "name": "CP-8000 MASTER MODULE WITH I/O -40/+70\u00b0C",
                  "product_id": "CSAFPID-0002",
                  "product_identification_helper": {
                    "model_numbers": [
                      "6MF2101-1AB10-0AA0"
                    ]
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "CP-8000 MASTER MODULE WITH I/O -40/+70\u00b0C"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:all/*",
                "product": {
                  "name": "CP-8021 MASTER MODULE",
                  "product_id": "CSAFPID-0003",
                  "product_identification_helper": {
                    "model_numbers": [
                      "6MF2802-1AA00"
                    ]
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "CP-8021 MASTER MODULE"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:all/*",
                "product": {
                  "name": "CP-8022 MASTER MODULE WITH GPRS",
                  "product_id": "CSAFPID-0004",
                  "product_identification_helper": {
                    "model_numbers": [
                      "6MF2802-2AA00"
                    ]
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "CP-8022 MASTER MODULE WITH GPRS"
          }
        ],
        "category": "vendor",
        "name": "Siemens"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2021-46304",
      "cwe": {
        "id": "CWE-284",
        "name": "Improper Access Control"
      },
      "notes": [
        {
          "category": "summary",
          "text": "The component allows to activate a web server module which provides unauthenticated access to its web pages. This could allow an attacker to retrieve debug-level information from the component such as internal network topology or connected systems.",
          "title": "Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "CSAFPID-0001",
          "CSAFPID-0002",
          "CSAFPID-0003",
          "CSAFPID-0004"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "cve.mitre.org",
          "url": "https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-46304"
        },
        {
          "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:R/S:U/C:L/I:N/A:N"
        }
      ],
      "remediations": [
        {
          "category": "mitigation",
          "details": "Operate the affected web server module only when required and consider\nthe security instructions provided in the updated manual (see also\nAdditional Information chapter)",
          "product_ids": [
            "CSAFPID-0001",
            "CSAFPID-0002",
            "CSAFPID-0003",
            "CSAFPID-0004"
          ]
        },
        {
          "category": "no_fix_planned",
          "details": "Currently no fix is planned",
          "product_ids": [
            "CSAFPID-0001",
            "CSAFPID-0002",
            "CSAFPID-0003",
            "CSAFPID-0004"
          ]
        },
        {
          "category": "mitigation",
          "details": "Operators of critical power systems (e.g. TSOs or DSOs) worldwide are\nusually required by regulations to build resilience into the power\ngrids by applying multi-level redundant secondary protection schemes.\nIt is therefore recommended that the operators check whether\nappropriate resilient protection measures are in place. The risk of\ncyber incidents impacting the grid\u0027s reliability can thus be minimized\nby virtue of the grid design.\n\nSiemens strongly recommends applying the provided security updates\nusing the corresponding tooling and documented procedures made\navailable with the product. If supported by the product, an automated\nmeans to apply the security updates across multiple product instances\nmay be used. Siemens strongly recommends prior validation of any\nsecurity update before being applied, and supervision by trained staff\nof the update process in the target environment.\n\nAs a general security measure Siemens strongly recommends to protect\nnetwork access with appropriate mechanisms (e.g. firewalls,\nsegmentation, VPN). It is advised to configure the environment\naccording to our operational guidelines in order to run the devices in\na protected IT environment.\n\nRecommended security guidelines can be found at:\n\nhttps://www.siemens.com/gridsecurity",
          "product_ids": [
            "CSAFPID-0001",
            "CSAFPID-0002",
            "CSAFPID-0003",
            "CSAFPID-0004"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 4.3,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C",
            "version": "3.1"
          },
          "products": [
            "CSAFPID-0001",
            "CSAFPID-0002",
            "CSAFPID-0003",
            "CSAFPID-0004"
          ]
        }
      ],
      "title": "CVE-2021-46304"
    }
  ]
}