{
  "document": {
    "title": "SSA-501073: Vulnerabilities in Controllers CPU 1518 MFP using Intel CPUs (November 2020)",
    "category": "Siemens Security Advisory",
    "csaf_version": "2.0",
    "publisher": {
      "name": "Siemens ProductCERT",
      "contact_details": "productcert@siemens.com",
      "category": "vendor",
      "namespace": "https://www.siemens.com"
    },
    "distribution": {
      "text": "Disclosure is not limited.",
      "tlp": {
        "label": "WHITE"
      }
    },
    "tracking": {
      "id": "SSA-501073",
      "status": "final",
      "version": "2",
      "revision_history": [
        {
          "number": "1",
          "legacy_version": "1.0",
          "date": "2021-05-11T00:00:00Z",
          "summary": "Publication Date"
        },
        {
          "number": "2",
          "legacy_version": "1.1",
          "date": "2022-03-08T00:00:00Z",
          "summary": "Updated specific mitigations; clarified that no remediation is planned"
        }
      ],
      "initial_release_date": "2021-05-11T00:00:00Z",
      "current_release_date": "2022-03-08T00:00:00Z",
      "generator": {
        "engine": {
          "name": "Siemens ProductCERT CSAF Generator",
          "version": "1"
        }
      }
    },
    "notes": [
      {
        "title": "Summary",
        "category": "summary",
        "text": "Intel has published information on vulnerabilities in Intel products in November 2020. This advisory lists the Siemens Controllers that are affected by these vulnerabilities.\n\nIn this advisory we take a representative CVE from each advisory:\n\n-   “Intel CSME, SPS, TXE, AMT and DAL Advisory” Intel-SA-00391 is represented by CVE-2020-8744\n\n-   “BIOS Advisory” Intel-SA-00358 is represented by CVE-2020-0591.\n\nSiemens is currently working on BIOS updates that include chipset microcode updates and recommends specific countermeasures for products where updates are not, or not yet available."
      },
      {
        "title": "General Recommendations",
        "category": "general",
        "text": "As a general security measure, Siemens strongly recommends to protect network access to devices with appropriate mechanisms. In order to operate the devices in a protected IT environment, Siemens recommends to configure the environment according to Siemens' operational guidelines for Industrial Security (Download: https://www.siemens.com/cert/operational-guidelines-industrial-security), and to follow the recommendations in the product manuals.\n\nAdditional information on Industrial Security by Siemens can be found at: https://www.siemens.com/industrialsecurity"
      },
      {
        "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": "Terms of Use",
        "category": "legal_disclaimer",
        "text": "Siemens Security Advisories are subject to the terms and conditions contained in Siemens' 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' 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."
      }
    ],
    "references": [
      {
        "category": "self",
        "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-501073.pdf",
        "summary": "SSA-501073: Vulnerabilities in Controllers CPU 1518 MFP using Intel CPUs (November 2020) - PDF Version"
      },
      {
        "category": "self",
        "url": "https://cert-portal.siemens.com/productcert/txt/ssa-501073.txt",
        "summary": "SSA-501073: Vulnerabilities in Controllers CPU 1518 MFP using Intel CPUs (November 2020) - TXT Version"
      },
      {
        "category": "self",
        "url": "https://cert-portal.siemens.com/productcert/csaf/ssa-501073.json",
        "summary": "SSA-501073: Vulnerabilities in Controllers CPU 1518 MFP using Intel CPUs (November 2020) - CSAF Version"
      }
    ]
  },
  "product_tree": {
    "branches": [
      {
        "name": "Siemens",
        "category": "vendor",
        "branches": [
          {
            "name": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (MLFB: 6ES7518-4AX00-1AC0, 6AG1518-4AX00-4AC0, incl. SIPLUS variant)",
            "category": "product_name",
            "branches": [
              {
                "name": "vers:all/*",
                "category": "product_version_range",
                "product": {
                  "product_id": "1",
                  "name": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (MLFB: 6ES7518-4AX00-1AC0, 6AG1518-4AX00-4AC0, incl. SIPLUS variant)"
                }
              }
            ]
          },
          {
            "name": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP",
            "category": "product_name",
            "branches": [
              {
                "name": "vers:all/*",
                "category": "product_version_range",
                "product": {
                  "product_id": "2",
                  "name": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AC0)",
                  "product_identification_helper": {
                    "model_numbers": [
                      "6ES7518-4FX00-1AC0"
                    ]
                  }
                }
              }
            ]
          }
        ]
      }
    ]
  },
  "vulnerabilities": [
    {
      "title": "CVE-2020-0591",
      "notes": [
        {
          "title": "Summary",
          "category": "summary",
          "text": "Improper buffer restrictions in BIOS firmware for some Intel(R) Processors may allow a privileged user to potentially enable escalation of privilege via local access."
        }
      ],
      "cve": "CVE-2020-0591",
      "cwe": {
        "id": "CWE-119",
        "name": "Improper Restriction of Operations within the Bounds of a Memory Buffer"
      },
      "product_status": {
        "known_affected": [
          "1",
          "2"
        ]
      },
      "scores": [
        {
          "cvss_v3": {
            "version": "3.1",
            "baseScore": 6.7,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C"
          },
          "products": [
            "1",
            "2"
          ]
        }
      ],
      "remediations": [
        {
          "product_ids": [
            "1",
            "2"
          ],
          "category": "no_fix_planned",
          "details": "Currently no remediation is planned"
        },
        {
          "product_ids": [
            "1",
            "2"
          ],
          "category": "mitigation",
          "details": "Avoid to run untrusted code on affected systems"
        }
      ],
      "references": [
        {
          "url": "https://cert-portal.siemens.com/productcert/mitre/CVE-2020-0591.json",
          "summary": "CVE-2020-0591 Mitre 5.0 json"
        }
      ]
    },
    {
      "title": "CVE-2020-8744",
      "notes": [
        {
          "title": "Summary",
          "category": "summary",
          "text": "Improper initialization in subsystem for Intel(R) CSME versions before 12.0.70, 13.0.40, 13.30.10, 14.0.45 and 14.5.25, Intel(R) TXE versions before 4.0.30 Intel(R) SPS versions before E3_05.01.04.200 may allow a privileged user to potentially enable escalation of privilege via local access."
        }
      ],
      "cve": "CVE-2020-8744",
      "cwe": {
        "id": "CWE-665",
        "name": "Improper Initialization"
      },
      "product_status": {
        "known_affected": [
          "1",
          "2"
        ]
      },
      "scores": [
        {
          "cvss_v3": {
            "version": "3.1",
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C"
          },
          "products": [
            "1",
            "2"
          ]
        }
      ],
      "remediations": [
        {
          "product_ids": [
            "1",
            "2"
          ],
          "category": "no_fix_planned",
          "details": "Currently no remediation is planned"
        },
        {
          "product_ids": [
            "1",
            "2"
          ],
          "category": "mitigation",
          "details": "Avoid to run untrusted code on affected systems"
        }
      ],
      "references": [
        {
          "url": "https://cert-portal.siemens.com/productcert/mitre/CVE-2020-8744.json",
          "summary": "CVE-2020-8744 Mitre 5.0 json"
        }
      ]
    }
  ]
}