{
  "document": {
    "title": "SSA-273799: Message Integrity Protection Bypass Vulnerability in SIMATIC Products",
    "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-273799",
      "status": "final",
      "version": "4",
      "revision_history": [
        {
          "number": "1",
          "legacy_version": "1.0",
          "date": "2019-12-10T00:00:00Z",
          "summary": "Publication Date"
        },
        {
          "number": "2",
          "legacy_version": "1.1",
          "date": "2020-02-11T00:00:00Z",
          "summary": "Added solution for TIM 1531 IRC and SIMATIC NET PC Software"
        },
        {
          "number": "3",
          "legacy_version": "1.2",
          "date": "2020-03-10T00:00:00Z",
          "summary": "Added links for WinCC Runtime"
        },
        {
          "number": "4",
          "legacy_version": "1.3",
          "date": "2022-04-12T00:00:00Z",
          "summary": "Added solution for SIMATIC NET PC Software V14 and clarified affected versions; Clarified no remediation planned"
        }
      ],
      "initial_release_date": "2019-12-10T00:00:00Z",
      "current_release_date": "2022-04-12T00:00:00Z",
      "generator": {
        "engine": {
          "name": "Siemens ProductCERT CSAF Generator",
          "version": "1"
        }
      }
    },
    "notes": [
      {
        "title": "Summary",
        "category": "summary",
        "text": "A message integrity protection bypass vulnerability has been identified in several SIMATIC products. The vulnerability could allow an attacker in a Man-in-the-Middle position to modify network traffic exchanged on port 102/tcp to PLCs of the SIMATIC S7-1200, SIMATIC S7-1500 and SIMATIC SoftwareController CPU families.\n\nSiemens has released updates for several affected products and recommends to update to the latest versions. Siemens recommends 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-273799.pdf",
        "summary": "SSA-273799: Message Integrity Protection Bypass Vulnerability in SIMATIC Products - PDF Version"
      },
      {
        "category": "self",
        "url": "https://cert-portal.siemens.com/productcert/txt/ssa-273799.txt",
        "summary": "SSA-273799: Message Integrity Protection Bypass Vulnerability in SIMATIC Products - TXT Version"
      },
      {
        "category": "self",
        "url": "https://cert-portal.siemens.com/productcert/csaf/ssa-273799.json",
        "summary": "SSA-273799: Message Integrity Protection Bypass Vulnerability in SIMATIC Products - CSAF Version"
      }
    ],
    "acknowledgments": [
      {
        "names": [
          "Eli Biham",
          "Sara Bitan",
          "Aviad Carmel",
          "Alon Dankner"
        ],
        "organization": "Faculty of Computer Science, Technion Haifa",
        "summary": "reporting the vulnerabilities"
      },
      {
        "names": [
          "Avishai Wool",
          "Uriel Malin"
        ],
        "organization": "School of Electrical Engineering, Tel-Aviv University",
        "summary": "reporting the vulnerabilities"
      }
    ]
  },
  "product_tree": {
    "branches": [
      {
        "name": "Siemens",
        "category": "vendor",
        "branches": [
          {
            "name": "SIMATIC CP 1626",
            "category": "product_name",
            "branches": [
              {
                "name": "vers:all/*",
                "category": "product_version_range",
                "product": {
                  "product_id": "1",
                  "name": "SIMATIC CP 1626",
                  "product_identification_helper": {
                    "model_numbers": [
                      "6GK1162-6AA01"
                    ]
                  }
                }
              }
            ]
          },
          {
            "name": "SIMATIC HMI Panel (incl. SIPLUS variants)",
            "category": "product_name",
            "branches": [
              {
                "name": "vers:all/*",
                "category": "product_version_range",
                "product": {
                  "product_id": "2",
                  "name": "SIMATIC HMI Panel (incl. SIPLUS variants)"
                }
              }
            ]
          },
          {
            "name": "SIMATIC NET PC Software V14",
            "category": "product_name",
            "branches": [
              {
                "name": "< V14 SP1 Update 14",
                "category": "product_version_range",
                "product": {
                  "product_id": "3",
                  "name": "SIMATIC NET PC Software V14"
                }
              }
            ]
          },
          {
            "name": "SIMATIC NET PC Software V15",
            "category": "product_name",
            "branches": [
              {
                "name": "vers:all/*",
                "category": "product_version_range",
                "product": {
                  "product_id": "4",
                  "name": "SIMATIC NET PC Software V15"
                }
              }
            ]
          },
          {
            "name": "SIMATIC STEP 7 (TIA Portal)",
            "category": "product_name",
            "branches": [
              {
                "name": "< V16",
                "category": "product_version_range",
                "product": {
                  "product_id": "5",
                  "name": "SIMATIC STEP 7 (TIA Portal)"
                }
              }
            ]
          },
          {
            "name": "SIMATIC WinCC (TIA Portal)",
            "category": "product_name",
            "branches": [
              {
                "name": "< V16",
                "category": "product_version_range",
                "product": {
                  "product_id": "6",
                  "name": "SIMATIC WinCC (TIA Portal)"
                }
              }
            ]
          },
          {
            "name": "SIMATIC WinCC OA",
            "category": "product_name",
            "branches": [
              {
                "name": "< V3.16 P013",
                "category": "product_version_range",
                "product": {
                  "product_id": "7",
                  "name": "SIMATIC WinCC OA"
                }
              }
            ]
          },
          {
            "name": "SIMATIC WinCC Runtime Advanced",
            "category": "product_name",
            "branches": [
              {
                "name": "< V16",
                "category": "product_version_range",
                "product": {
                  "product_id": "8",
                  "name": "SIMATIC WinCC Runtime Advanced"
                }
              }
            ]
          },
          {
            "name": "SIMATIC WinCC Runtime Professional",
            "category": "product_name",
            "branches": [
              {
                "name": "< V16",
                "category": "product_version_range",
                "product": {
                  "product_id": "9",
                  "name": "SIMATIC WinCC Runtime Professional"
                }
              }
            ]
          },
          {
            "name": "TIM 1531 IRC (incl. SIPLUS NET variants)",
            "category": "product_name",
            "branches": [
              {
                "name": "< V2.1",
                "category": "product_version_range",
                "product": {
                  "product_id": "10",
                  "name": "TIM 1531 IRC (incl. SIPLUS NET variants)"
                }
              }
            ]
          }
        ]
      }
    ]
  },
  "vulnerabilities": [
    {
      "title": "CVE-2019-10929",
      "notes": [
        {
          "title": "Summary",
          "category": "summary",
          "text": "Affected devices contain a message protection bypass vulnerability due to certain properties in the calculation used for integrity protection.\n\nThis could allow an attacker in a Man-in-the-Middle position to modify network traffic sent on port 102/tcp to the affected devices."
        }
      ],
      "cve": "CVE-2019-10929",
      "cwe": {
        "id": "CWE-327",
        "name": "Use of a Broken or Risky Cryptographic Algorithm"
      },
      "product_status": {
        "known_affected": [
          "1",
          "2",
          "3",
          "4",
          "5",
          "6",
          "7",
          "8",
          "9",
          "10"
        ]
      },
      "scores": [
        {
          "cvss_v3": {
            "version": "3.1",
            "baseScore": 3.7,
            "baseSeverity": "LOW",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C"
          },
          "products": [
            "1",
            "2",
            "3",
            "4",
            "5",
            "6",
            "7",
            "8",
            "9",
            "10"
          ]
        }
      ],
      "remediations": [
        {
          "product_ids": [
            "1",
            "2",
            "4"
          ],
          "category": "no_fix_planned",
          "details": "Currently no fix is planned"
        },
        {
          "product_ids": [
            "3"
          ],
          "category": "vendor_fix",
          "details": "Update to V14 SP1 Update 14 or later version",
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109807351/"
        },
        {
          "product_ids": [
            "5",
            "6"
          ],
          "category": "vendor_fix",
          "details": "Update to version V16",
          "url": "https://support.industry.siemens.com/cs/document/109772803/"
        },
        {
          "product_ids": [
            "7"
          ],
          "category": "vendor_fix",
          "details": "Update to V3.16 P013 or later version",
          "url": "https://www.winccoa.com/downloads/category/versions-patches.html"
        },
        {
          "product_ids": [
            "8",
            "9"
          ],
          "category": "vendor_fix",
          "details": "Update to version V16",
          "url": "https://support.industry.siemens.com/cs/document/109771219/"
        },
        {
          "product_ids": [
            "10"
          ],
          "category": "vendor_fix",
          "details": "Update to V2.1",
          "url": "https://support.industry.siemens.com/cs/document/109774204/"
        }
      ],
      "references": [
        {
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109807351/",
          "summary": "CVE-2019-10929 - SIMATIC NET PC Software V14"
        },
        {
          "url": "https://support.industry.siemens.com/cs/document/109772803/",
          "summary": "CVE-2019-10929 - SIMATIC STEP 7 (TIA Portal)"
        },
        {
          "url": "https://support.industry.siemens.com/cs/document/109772803/",
          "summary": "CVE-2019-10929 - SIMATIC WinCC (TIA Portal)"
        },
        {
          "url": "https://www.winccoa.com/downloads/category/versions-patches.html",
          "summary": "CVE-2019-10929 - SIMATIC WinCC OA"
        },
        {
          "url": "https://support.industry.siemens.com/cs/document/109771219/",
          "summary": "CVE-2019-10929 - SIMATIC WinCC Runtime Advanced"
        },
        {
          "url": "https://support.industry.siemens.com/cs/document/109771219/",
          "summary": "CVE-2019-10929 - SIMATIC WinCC Runtime Professional"
        },
        {
          "url": "https://support.industry.siemens.com/cs/document/109774204/",
          "summary": "CVE-2019-10929 - TIM 1531 IRC (incl. SIPLUS NET variants)"
        },
        {
          "url": "https://cert-portal.siemens.com/productcert/mitre/CVE-2019-10929.json",
          "summary": "CVE-2019-10929 Mitre 5.0 json"
        }
      ]
    }
  ]
}