{
  "document": {
    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "distribution": {
      "text": "Disclosure is not limited.",
      "tlp": {
        "label": "WHITE"
      }
    },
    "notes": [
      {
        "category": "summary",
        "text": "A vulnerability was identified in the CPC80 firmware of SICAM A8000 devices. It could allow an unauthenticated remote attacker to cause a permanent denial of service condition.\n\nSiemens has released updates for the affected products and recommends to update to the latest versions.",
        "title": "Summary"
      },
      {
        "category": "general",
        "text": "Operators of critical power systems (e.g. TSOs or DSOs) worldwide are usually required by regulations to build resilience into the power grids by applying multi-level redundant secondary protection schemes. It is therefore recommended that the operators check whether appropriate resilient protection measures are in place. The risk of cyber incidents impacting the grid\u0027s reliability can thus be minimized by virtue of the grid design.\n\nSiemens strongly recommends applying the provided security updates using the corresponding tooling and documented procedures made available with the product. If supported by the product, an automated means to apply the security updates across multiple product instances may be used. Siemens strongly recommends prior validation of any security update before being applied, and supervision by trained staff of the update process in the target environment. \n\nAs 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.\n\nRecommended security guidelines can be found at:\n\nhttps://www.siemens.com/gridsecurity",
        "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": "Siemens Security Advisories are subject to the terms and conditions contained in Siemens\u0027 underlying license terms or other applicable agreements previously agreed to with Siemens (hereinafter \"License Terms\"). To the extent applicable to information, software or documentation made available in or through a Siemens Security Advisory, the Terms of Use of Siemens\u0027 Global Website (https://www.siemens.com/terms_of_use, hereinafter \"Terms of Use\"), in particular Sections 8-10 of the Terms of Use, shall apply additionally. In case of conflicts, the License Terms shall prevail over the 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-491621: Denial of Service Vulnerability in CPC80 Firmware of SICAM A8000 Devices - PDF Version",
        "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-491621.pdf"
      },
      {
        "category": "self",
        "summary": "SSA-491621: Denial of Service Vulnerability in CPC80 Firmware of SICAM A8000 Devices - TXT Version",
        "url": "https://cert-portal.siemens.com/productcert/txt/ssa-491621.txt"
      },
      {
        "category": "self",
        "summary": "SSA-491621: Denial of Service Vulnerability in CPC80 Firmware of SICAM A8000 Devices - CSAF Version",
        "url": "https://cert-portal.siemens.com/productcert/csaf/ssa-491621.json"
      }
    ],
    "title": "SSA-491621: Denial of Service Vulnerability in CPC80 Firmware of SICAM A8000 Devices",
    "tracking": {
      "current_release_date": "2022-07-12T00:00:00Z",
      "generator": {
        "engine": {
          "name": "Siemens ProductCERT CSAF Generator",
          "version": "1"
        }
      },
      "id": "SSA-491621",
      "initial_release_date": "2022-07-12T00:00:00Z",
      "revision_history": [
        {
          "date": "2022-07-12T00:00:00Z",
          "legacy_version": "1.0",
          "number": "1",
          "summary": "Publication Date"
        }
      ],
      "status": "final",
      "version": "1"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c CPC80 V16.30",
                "product": {
                  "name": "CP-8000 MASTER MODULE WITH I/O -25/+70\u00b0C",
                  "product_id": "1",
                  "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": "\u003c CPC80 V16.30",
                "product": {
                  "name": "CP-8000 MASTER MODULE WITH I/O -40/+70\u00b0C",
                  "product_id": "2",
                  "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": "\u003c CPC80 V16.30",
                "product": {
                  "name": "CP-8021 MASTER MODULE",
                  "product_id": "3",
                  "product_identification_helper": {
                    "model_numbers": [
                      "6MF2802-1AA00"
                    ]
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "CP-8021 MASTER MODULE"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c CPC80 V16.30",
                "product": {
                  "name": "CP-8022 MASTER MODULE WITH GPRS",
                  "product_id": "4",
                  "product_identification_helper": {
                    "model_numbers": [
                      "6MF2802-2AA00"
                    ]
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "CP-8022 MASTER MODULE WITH GPRS"
          }
        ],
        "category": "vendor",
        "name": "Siemens"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2022-29884",
      "cwe": {
        "id": "CWE-772",
        "name": "Missing Release of Resource after Effective Lifetime"
      },
      "notes": [
        {
          "category": "summary",
          "text": "When using the HTTPS server under specific conditions, affected devices do not properly free resources. This could allow an unauthenticated remote attacker to put the device into a denial of service condition.",
          "title": "Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "1",
          "2",
          "3",
          "4"
        ]
      },
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "Update to CPC80 V16.30 or later version",
          "product_ids": [
            "1",
            "2",
            "3",
            "4"
          ],
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109811278/"
        },
        {
          "category": "workaround",
          "details": "Limit access to port 443/tcp to trusted IP addresses",
          "product_ids": [
            "1",
            "2",
            "3",
            "4"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C",
            "version": "3.1"
          },
          "products": [
            "1",
            "2",
            "3",
            "4"
          ]
        }
      ],
      "title": "CVE-2022-29884"
    }
  ]
}