icsa-19-344-04
Vulnerability from csaf_cisa
Published
2019-12-10 00:00
Modified
2025-05-06 06:00
Summary
Siemens SIMATIC Products (Update C)

Notes

Summary
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. Siemens 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.
General Recommendations
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. Additional information on Industrial Security by Siemens can be found at: https://www.siemens.com/industrialsecurity
Additional Resources
For further inquiries on security vulnerabilities in Siemens products and solutions, please contact the Siemens ProductCERT: https://www.siemens.com/cert/advisories
Terms of Use
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.
Legal Notice
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/.
Advisory Conversion Disclaimer
This CISA CSAF advisory was converted from Siemens ProductCERT's CSAF advisory.
Critical infrastructure sectors
Multiple
Countries/areas deployed
Worldwide
Company headquarters location
Germany
Recommended Practices
CISA recommends users take defensive measures to minimize the exploitation risk of these vulnerabilities.
Recommended Practices
Minimize network exposure for all control system devices and/or systems, and ensure they are not accessible from the internet.
Recommended Practices
Locate control system networks and remote devices behind firewalls and isolate them from business networks.
Recommended Practices
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.
Recommended Practices
CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures.
Recommended Practices
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.
Recommended Practices
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.
Recommended Practices
Organizations observing suspected malicious activity should follow established internal procedures and report findings to CISA for tracking and correlation against other incidents.


To clipboard 

{
  "document": {
    "acknowledgments": [
      {
        "organization": "Siemens ProductCERT",
        "summary": "reporting these vulnerabilities to CISA."
      },
      {
        "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"
      }
    ],
    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "distribution": {
      "text": "Disclosure is not limited",
      "tlp": {
        "label": "WHITE",
        "url": "https://us-cert.cisa.gov/tlp/"
      }
    },
    "notes": [
      {
        "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": "Summary"
      },
      {
        "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\u0027 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": "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"
      },
      {
        "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 CSAF 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 these vulnerabilities.",
        "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"
      }
    ],
    "publisher": {
      "category": "other",
      "contact_details": "central@cisa.dhs.gov",
      "name": "CISA",
      "namespace": "https://www.cisa.gov/"
    },
    "references": [
      {
        "category": "self",
        "summary": "SSA-273799: Message Integrity Protection Bypass Vulnerability in SIMATIC Products - CSAF Version",
        "url": "https://cert-portal.siemens.com/productcert/csaf/ssa-273799.json"
      },
      {
        "category": "self",
        "summary": "SSA-273799: Message Integrity Protection Bypass Vulnerability in SIMATIC Products - TXT Version",
        "url": "https://cert-portal.siemens.com/productcert/txt/ssa-273799.txt"
      },
      {
        "category": "self",
        "summary": "SSA-273799: Message Integrity Protection Bypass Vulnerability in SIMATIC Products - PDF Version",
        "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-273799.pdf"
      },
      {
        "category": "self",
        "summary": "ICS Advisory ICSA-19-344-04 JSON",
        "url": "https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/OT/white/2019/icsa-19-344-04.json"
      },
      {
        "category": "self",
        "summary": "ICS Advisory ICSA-19-344-04 - Web Version",
        "url": "https://www.cisa.gov/news-events/ics-advisories/icsa-19-344-04"
      },
      {
        "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/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/sites/default/files/publications/Cybersecurity_Best_Practices_for_Industrial_Control_Systems.pdf"
      },
      {
        "category": "external",
        "summary": "Recommended Practices",
        "url": "https://www.cisa.gov/uscert/ics/tips/ICS-TIP-12-146-01B"
      }
    ],
    "title": "Siemens SIMATIC Products (Update C)",
    "tracking": {
      "current_release_date": "2025-05-06T06:00:00.000000Z",
      "generator": {
        "engine": {
          "name": "CISA CSAF Generator",
          "version": "1.0.0"
        }
      },
      "id": "ICSA-19-344-04",
      "initial_release_date": "2019-12-10T00:00:00.000000Z",
      "revision_history": [
        {
          "date": "2019-12-10T00:00:00.000000Z",
          "legacy_version": "1.0",
          "number": "1",
          "summary": "Publication Date"
        },
        {
          "date": "2020-02-11T00:00:00.000000Z",
          "legacy_version": "1.1",
          "number": "2",
          "summary": "Added solution for TIM 1531 IRC and SIMATIC NET PC Software"
        },
        {
          "date": "2020-03-10T00:00:00.000000Z",
          "legacy_version": "1.2",
          "number": "3",
          "summary": "Added links for WinCC Runtime"
        },
        {
          "date": "2022-04-12T00:00:00.000000Z",
          "legacy_version": "1.3",
          "number": "4",
          "summary": "Added solution for SIMATIC NET PC Software V14 and clarified affected versions; Clarified no remediation planned"
        },
        {
          "date": "2025-05-06T06:00:00.000000Z",
          "legacy_version": "Revision",
          "number": "5",
          "summary": "Revision - Fixing typos"
        }
      ],
      "status": "final",
      "version": "5"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:all/*",
                "product": {
                  "name": "SIMATIC CP 1626",
                  "product_id": "CSAFPID-0001",
                  "product_identification_helper": {
                    "model_numbers": [
                      "6GK1162-6AA01"
                    ]
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "SIMATIC CP 1626"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:all/*",
                "product": {
                  "name": "SIMATIC HMI Panel (incl. SIPLUS variants)",
                  "product_id": "CSAFPID-0002"
                }
              }
            ],
            "category": "product_name",
            "name": "SIMATIC HMI Panel (incl. SIPLUS variants)"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003cV14_SP1_Update_14",
                "product": {
                  "name": "SIMATIC NET PC Software V14",
                  "product_id": "CSAFPID-0003"
                }
              }
            ],
            "category": "product_name",
            "name": "SIMATIC NET PC Software V14"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:all/*",
                "product": {
                  "name": "SIMATIC NET PC Software V15",
                  "product_id": "CSAFPID-0004"
                }
              }
            ],
            "category": "product_name",
            "name": "SIMATIC NET PC Software V15"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003cV16",
                "product": {
                  "name": "SIMATIC STEP 7 (TIA Portal)",
                  "product_id": "CSAFPID-0005"
                }
              }
            ],
            "category": "product_name",
            "name": "SIMATIC STEP 7 (TIA Portal)"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003cV16",
                "product": {
                  "name": "SIMATIC WinCC (TIA Portal)",
                  "product_id": "CSAFPID-0006"
                }
              }
            ],
            "category": "product_name",
            "name": "SIMATIC WinCC (TIA Portal)"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003cV3.16_P013",
                "product": {
                  "name": "SIMATIC WinCC OA",
                  "product_id": "CSAFPID-0007"
                }
              }
            ],
            "category": "product_name",
            "name": "SIMATIC WinCC OA"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003cV16",
                "product": {
                  "name": "SIMATIC WinCC Runtime Advanced",
                  "product_id": "CSAFPID-0008"
                }
              }
            ],
            "category": "product_name",
            "name": "SIMATIC WinCC Runtime Advanced"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003cV16",
                "product": {
                  "name": "SIMATIC WinCC Runtime Professional",
                  "product_id": "CSAFPID-0009"
                }
              }
            ],
            "category": "product_name",
            "name": "SIMATIC WinCC Runtime Professional"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003cV2.1",
                "product": {
                  "name": "TIM 1531 IRC (incl. SIPLUS NET variants)",
                  "product_id": "CSAFPID-0010"
                }
              }
            ],
            "category": "product_name",
            "name": "TIM 1531 IRC (incl. SIPLUS NET variants)"
          }
        ],
        "category": "vendor",
        "name": "Siemens"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2019-10929",
      "cwe": {
        "id": "CWE-327",
        "name": "Use of a Broken or Risky Cryptographic Algorithm"
      },
      "notes": [
        {
          "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.",
          "title": "Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "CSAFPID-0001",
          "CSAFPID-0002",
          "CSAFPID-0003",
          "CSAFPID-0004",
          "CSAFPID-0005",
          "CSAFPID-0006",
          "CSAFPID-0007",
          "CSAFPID-0008",
          "CSAFPID-0009",
          "CSAFPID-0010"
        ]
      },
      "references": [
        {
          "summary": "CVE-2019-10929 - SIMATIC NET PC Software V14",
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109807351/"
        },
        {
          "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://support.industry.siemens.com/cs/document/109772803/"
        },
        {
          "summary": "CVE-2019-10929 - SIMATIC WinCC OA",
          "url": "https://www.winccoa.com/downloads/category/versions-patches.html"
        },
        {
          "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/109771219/"
        },
        {
          "summary": "CVE-2019-10929 - TIM 1531 IRC (incl. SIPLUS NET variants)",
          "url": "https://support.industry.siemens.com/cs/document/109774204/"
        },
        {
          "summary": "CVE-2019-10929 Mitre 5.0 json",
          "url": "https://cert-portal.siemens.com/productcert/mitre/CVE-2019-10929.json"
        }
      ],
      "remediations": [
        {
          "category": "no_fix_planned",
          "details": "Currently no fix is planned",
          "product_ids": [
            "CSAFPID-0001",
            "CSAFPID-0002",
            "CSAFPID-0004"
          ]
        },
        {
          "category": "vendor_fix",
          "details": "Update to V14 SP1 Update 14 or later version",
          "product_ids": [
            "CSAFPID-0003"
          ],
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109807351/"
        },
        {
          "category": "vendor_fix",
          "details": "Update to version V16",
          "product_ids": [
            "CSAFPID-0005",
            "CSAFPID-0006"
          ],
          "url": "https://support.industry.siemens.com/cs/document/109772803/"
        },
        {
          "category": "vendor_fix",
          "details": "Update to V3.16 P013 or later version",
          "product_ids": [
            "CSAFPID-0007"
          ],
          "url": "https://www.winccoa.com/downloads/category/versions-patches.html"
        },
        {
          "category": "vendor_fix",
          "details": "Update to version V16",
          "product_ids": [
            "CSAFPID-0008",
            "CSAFPID-0009"
          ],
          "url": "https://support.industry.siemens.com/cs/document/109771219/"
        },
        {
          "category": "vendor_fix",
          "details": "Update to V2.1",
          "product_ids": [
            "CSAFPID-0010"
          ],
          "url": "https://support.industry.siemens.com/cs/document/109774204/"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "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",
            "version": "3.1"
          },
          "products": [
            "CSAFPID-0001",
            "CSAFPID-0002",
            "CSAFPID-0003",
            "CSAFPID-0004",
            "CSAFPID-0005",
            "CSAFPID-0006",
            "CSAFPID-0007",
            "CSAFPID-0008",
            "CSAFPID-0009",
            "CSAFPID-0010"
          ]
        }
      ],
      "title": "CVE-2019-10929"
    }
  ]
}


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