icsa-16-140-02
Vulnerability from csaf_cisa
Published
2016-02-20 07:00
Modified
2025-06-05 21:42
Summary
Siemens SIPROTEC Information Disclosure Vulnerabilities (Update B)

Notes

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/.
CISA Disclaimer
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
Recommended Practices
CISA recommends users take defensive measures to minimize the risk of exploitation.
Recommended Practices
Minimize network exposure for all control system devices and/or systems, ensuring they are not accessible from the internet.
Recommended Practices
Locate control system networks and remote devices behind firewalls and isolating them from business networks.
Recommended Practices
When remote access is required, use more secure methods, such as Virtual Private Networks (VPNs). Recognize VPNs may have vulnerabilities, should be updated to the most recent version available, and are only as secure as the 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.
Recommended Practices
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.
Recommended Practices
CISA also recommends users take the following measures to protect themselves from social engineering attacks: Do not click web links or open attachments in unsolicited email messages. Refer to Recognizing and Avoiding Email Scams for more information on avoiding email scams. Refer to Avoiding Social Engineering and Phishing Attacks for more information on social engineering attacks.


To clipboard 

{
  "document": {
    "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": "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": "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": "general",
        "text": "CISA recommends users take defensive measures to minimize the risk of exploitation.",
        "title": "Recommended Practices"
      },
      {
        "category": "general",
        "text": "Minimize network exposure for all control system devices and/or systems, ensuring they are not accessible from the internet.",
        "title": "Recommended Practices"
      },
      {
        "category": "general",
        "text": "Locate control system networks and remote devices behind firewalls and isolating 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). Recognize VPNs may have vulnerabilities, should be updated to the most recent version available, and are only as secure as the 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.",
        "title": "Recommended Practices"
      },
      {
        "category": "general",
        "text": "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"
      },
      {
        "category": "general",
        "text": "CISA also recommends users take the following measures to protect themselves from social engineering attacks: Do not click web links or open attachments in unsolicited email messages. Refer to Recognizing and Avoiding Email Scams for more information on avoiding email scams. Refer to Avoiding Social Engineering and Phishing Attacks for more information on social engineering attacks.",
        "title": "Recommended Practices"
      }
    ],
    "publisher": {
      "category": "coordinator",
      "contact_details": "central@cisa.dhs.gov",
      "name": "CISA",
      "namespace": "https://www.cisa.gov/"
    },
    "references": [
      {
        "category": "self",
        "summary": "ICS Advisory ICSA-16-140-02 JSON",
        "url": "https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/OT/white/2016/icsa-16-140-02.json"
      },
      {
        "category": "self",
        "summary": "ICS Advisory ICSA-16-140-02 - Web Version",
        "url": "https://www.cisa.gov/news-events/ics-advisories/icsa-16-140-02"
      },
      {
        "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"
      },
      {
        "category": "external",
        "summary": "Recommended Practices",
        "url": "https://www.cisa.gov/uscert/sites/default/files/publications/emailscams0905.pdf"
      },
      {
        "category": "external",
        "summary": "Recommended Practices",
        "url": "https://www.cisa.gov/uscert/ncas/tips/ST04-014"
      }
    ],
    "title": "Siemens SIPROTEC Information Disclosure Vulnerabilities (Update B)",
    "tracking": {
      "current_release_date": "2025-06-05T21:42:14.185644Z",
      "generator": {
        "date": "2025-06-05T21:42:14.185508Z",
        "engine": {
          "name": "CISA CSAF Generator",
          "version": "1.0.0"
        }
      },
      "id": "ICSA-16-140-02",
      "initial_release_date": "2016-02-20T07:00:00.000000Z",
      "revision_history": [
        {
          "date": "2016-02-20T07:00:00.000000Z",
          "legacy_version": "Initial",
          "number": "1",
          "summary": "Initial Publication"
        },
        {
          "date": "2025-06-05T21:42:14.185644Z",
          "legacy_version": "CSAF Conversion",
          "number": "2",
          "summary": "Advisory converted into a CSAF"
        }
      ],
      "status": "final",
      "version": "2"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c=V4.26",
                "product": {
                  "name": "Siemens EN100 Ethernet module included in SIPROTEC 4: \u003c=V4.26",
                  "product_id": "CSAFPID-0001"
                }
              }
            ],
            "category": "product_name",
            "name": "EN100 Ethernet module included in SIPROTEC 4"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c=V4.26",
                "product": {
                  "name": "Siemens EN100 Ethernet module included in SIPROTEC Compact: \u003c=V4.26",
                  "product_id": "CSAFPID-0002"
                }
              }
            ],
            "category": "product_name",
            "name": "EN100 Ethernet module included in SIPROTEC Compact"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c=V4.75",
                "product": {
                  "name": "Siemens SIPROTEC Compact model 7SJ80 with Ethernet Service Interface on Port A Firmware: \u003c=V4.75",
                  "product_id": "CSAFPID-0003"
                }
              }
            ],
            "category": "product_name",
            "name": "SIPROTEC Compact model 7SJ80 with Ethernet Service Interface on Port A Firmware"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:all/*",
                "product": {
                  "name": "Siemens SIPROTEC Compact models 7RW80  with Ethernet Service Interface on Port A: vers:all/*",
                  "product_id": "CSAFPID-0004"
                }
              }
            ],
            "category": "product_name",
            "name": "SIPROTEC Compact models 7RW80  with Ethernet Service Interface on Port A"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:all/*",
                "product": {
                  "name": "Siemens SIPROTEC Compact models 7SJ81 with Ethernet Service Interface on Port A: vers:all/*",
                  "product_id": "CSAFPID-0005"
                }
              }
            ],
            "category": "product_name",
            "name": "SIPROTEC Compact models 7SJ81 with Ethernet Service Interface on Port A"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:all/*",
                "product": {
                  "name": "Siemens SIPROTEC Compact models 7SK81 with Ethernet Service Interface on Port A: vers:all/*",
                  "product_id": "CSAFPID-0006"
                }
              }
            ],
            "category": "product_name",
            "name": "SIPROTEC Compact models 7SK81 with Ethernet Service Interface on Port A"
          }
        ],
        "category": "vendor",
        "name": "Siemens"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2016-4784",
      "cwe": {
        "id": "CWE-200",
        "name": "Exposure of Sensitive Information to an Unauthorized Actor"
      },
      "notes": [
        {
          "category": "summary",
          "text": "A vulnerability has been identified in firmware variant PROFINET IO for EN100 Ethernet module : All versions \u003c V1.04.01; Firmware variant Modbus TCP for EN100 Ethernet module : All versions \u003c V1.11.00; Firmware variant DNP3 TCP for EN100 Ethernet module : All versions \u003c V1.03; Firmware variant IEC 104 for EN100 Ethernet module : All versions \u003c V1.21; EN100 Ethernet module included in SIPROTEC Merging Unit 6MU80 : All versions \u003c 1.02.02; SIPROTEC 7SJ686 : All versions \u003c V 4.83; SIPROTEC 7UT686 : All versions \u003c V 4.01; SIPROTEC 7SD686 : All versions \u003c V 4.03; SIPROTEC 7SJ66 : All versions \u003c V 4.20. The integrated web server (port 80/tcp) of the affected devices could allow remote attackers to obtain sensitive device information if network access was obtained.",
          "title": "Vulnerability Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "CSAFPID-0001",
          "CSAFPID-0002",
          "CSAFPID-0003",
          "CSAFPID-0004",
          "CSAFPID-0005",
          "CSAFPID-0006"
        ]
      },
      "remediations": [
        {
          "category": "mitigation",
          "details": "Siemens provides firmware update V4.27 for EN100 module included in SIPROTEC 4 and SIPROTEC Compact to fix the vulnerabilities. The firmware updates can be found at the following locations on the Siemens website: (http://www.siemens.com/downloads/siprotec-4) (http://www.siemens.com/downloads/siprotec-compact)",
          "product_ids": [
            "CSAFPID-0001",
            "CSAFPID-0002",
            "CSAFPID-0003",
            "CSAFPID-0004",
            "CSAFPID-0005",
            "CSAFPID-0006"
          ],
          "url": "http://www.siemens.com/downloads/siprotec-4"
        },
        {
          "category": "mitigation",
          "details": "Siemens provides firmware update V4.27 for EN100 module included in SIPROTEC 4 and SIPROTEC Compact to fix the vulnerabilities. The firmware updates can be found at the following locations on the Siemens website: (http://www.siemens.com/downloads/siprotec-4) (http://www.siemens.com/downloads/siprotec-compact)",
          "product_ids": [
            "CSAFPID-0001",
            "CSAFPID-0002",
            "CSAFPID-0003",
            "CSAFPID-0004",
            "CSAFPID-0005",
            "CSAFPID-0006"
          ],
          "url": "http://www.siemens.com/downloads/siprotec-compact"
        },
        {
          "category": "mitigation",
          "details": "For SIPROTEC Compact 7SJ80 with Ethernet Service Interface on Port A, Siemens provides firmware update V4.76. The firmware update can be found at the following location on the Siemens website: (http://www.siemens.com/downloads/siprotec-compact)",
          "product_ids": [
            "CSAFPID-0001",
            "CSAFPID-0002",
            "CSAFPID-0003",
            "CSAFPID-0004",
            "CSAFPID-0005",
            "CSAFPID-0006"
          ],
          "url": "http://www.siemens.com/downloads/siprotec-compact"
        },
        {
          "category": "mitigation",
          "details": "An attacker must have network access to the affected devices. For remaining affected products, Siemens recommends to protect network access with appropriate mechanisms (e.g., firewalls, segmentation, VPN). It is advised to configure the environment according to Siemens operational guidelines in order to run the devices in a protected IT environment. Siemens provides guidance at the following location for operating the devices only within trusted networks: (http://www.siemens.com/gridsecurity)",
          "product_ids": [
            "CSAFPID-0001",
            "CSAFPID-0002",
            "CSAFPID-0003",
            "CSAFPID-0004",
            "CSAFPID-0005",
            "CSAFPID-0006"
          ],
          "url": "http://www.siemens.com/gridsecurity"
        },
        {
          "category": "mitigation",
          "details": "For more information on these vulnerabilities and more detailed mitigation instructions, please see Siemens Security Advisory SSA-547990 at the following location: (http://www.siemens.com/cert/advisories)",
          "product_ids": [
            "CSAFPID-0001",
            "CSAFPID-0002",
            "CSAFPID-0003",
            "CSAFPID-0004",
            "CSAFPID-0005",
            "CSAFPID-0006"
          ],
          "url": "http://www.siemens.com/cert/advisories"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
            "version": "3.0"
          },
          "products": [
            "CSAFPID-0001",
            "CSAFPID-0002",
            "CSAFPID-0003",
            "CSAFPID-0004",
            "CSAFPID-0005",
            "CSAFPID-0006"
          ]
        }
      ]
    },
    {
      "cve": "CVE-2016-4785",
      "cwe": {
        "id": "CWE-200",
        "name": "Exposure of Sensitive Information to an Unauthorized Actor"
      },
      "notes": [
        {
          "category": "summary",
          "text": "A vulnerability has been identified in Firmware variant PROFINET IO for EN100 Ethernet module : All versions \u003c V1.04.01; Firmware variant Modbus TCP for EN100 Ethernet module : All versions \u003c V1.11.00; Firmware variant DNP3 TCP for EN100 Ethernet module : All versions \u003c V1.03; Firmware variant IEC 104 for EN100 Ethernet module : All versions \u003c V1.21; EN100 Ethernet module included in SIPROTEC Merging Unit 6MU80 : All versions \u003c 1.02.02. The integrated web server (port 80/tcp) of the affected devices could allow remote attackers to obtain a limited amount of device memory content if network access was obtained. This vulnerability only affects EN100 Ethernet module included in SIPROTEC4 and SIPROTEC Compact devices.",
          "title": "Vulnerability Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "CSAFPID-0001",
          "CSAFPID-0002",
          "CSAFPID-0003",
          "CSAFPID-0004",
          "CSAFPID-0005",
          "CSAFPID-0006"
        ]
      },
      "remediations": [
        {
          "category": "mitigation",
          "details": "Siemens provides firmware update V4.27 for EN100 module included in SIPROTEC 4 and SIPROTEC Compact to fix the vulnerabilities. The firmware updates can be found at the following locations on the Siemens website: (http://www.siemens.com/downloads/siprotec-4) (http://www.siemens.com/downloads/siprotec-compact)",
          "product_ids": [
            "CSAFPID-0001",
            "CSAFPID-0002",
            "CSAFPID-0003",
            "CSAFPID-0004",
            "CSAFPID-0005",
            "CSAFPID-0006"
          ],
          "url": "http://www.siemens.com/downloads/siprotec-4"
        },
        {
          "category": "mitigation",
          "details": "Siemens provides firmware update V4.27 for EN100 module included in SIPROTEC 4 and SIPROTEC Compact to fix the vulnerabilities. The firmware updates can be found at the following locations on the Siemens website: (http://www.siemens.com/downloads/siprotec-4) (http://www.siemens.com/downloads/siprotec-compact)",
          "product_ids": [
            "CSAFPID-0001",
            "CSAFPID-0002",
            "CSAFPID-0003",
            "CSAFPID-0004",
            "CSAFPID-0005",
            "CSAFPID-0006"
          ],
          "url": "http://www.siemens.com/downloads/siprotec-compact"
        },
        {
          "category": "mitigation",
          "details": "For SIPROTEC Compact 7SJ80 with Ethernet Service Interface on Port A, Siemens provides firmware update V4.76. The firmware update can be found at the following location on the Siemens website: (http://www.siemens.com/downloads/siprotec-compact)",
          "product_ids": [
            "CSAFPID-0001",
            "CSAFPID-0002",
            "CSAFPID-0003",
            "CSAFPID-0004",
            "CSAFPID-0005",
            "CSAFPID-0006"
          ],
          "url": "http://www.siemens.com/downloads/siprotec-compact"
        },
        {
          "category": "mitigation",
          "details": "An attacker must have network access to the affected devices. For remaining affected products, Siemens recommends to protect network access with appropriate mechanisms (e.g., firewalls, segmentation, VPN). It is advised to configure the environment according to Siemens operational guidelines in order to run the devices in a protected IT environment. Siemens provides guidance at the following location for operating the devices only within trusted networks: (http://www.siemens.com/gridsecurity)",
          "product_ids": [
            "CSAFPID-0001",
            "CSAFPID-0002",
            "CSAFPID-0003",
            "CSAFPID-0004",
            "CSAFPID-0005",
            "CSAFPID-0006"
          ],
          "url": "http://www.siemens.com/gridsecurity"
        },
        {
          "category": "mitigation",
          "details": "For more information on these vulnerabilities and more detailed mitigation instructions, please see Siemens Security Advisory SSA-547990 at the following location: (http://www.siemens.com/cert/advisories)",
          "product_ids": [
            "CSAFPID-0001",
            "CSAFPID-0002",
            "CSAFPID-0003",
            "CSAFPID-0004",
            "CSAFPID-0005",
            "CSAFPID-0006"
          ],
          "url": "http://www.siemens.com/cert/advisories"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
            "version": "3.0"
          },
          "products": [
            "CSAFPID-0001",
            "CSAFPID-0002",
            "CSAFPID-0003",
            "CSAFPID-0004",
            "CSAFPID-0005",
            "CSAFPID-0006"
          ]
        }
      ]
    }
  ]
}


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