SEVD-2020-105-02

Vulnerability from csaf_se - Published: 2020-04-14 00:00 - Updated: 2020-11-10 00:00
Summary
Modicon M218/M241/M251/M258 Logic Controllers,SoMachine/SoMachine Motion, EcoStruxure™ Machine Expert

Notes

General Security Recommendations
We strongly recommend the following industry cybersecurity best practices. https://www.se.com/us/en/download/document/7EN52-0390/ * Locate control and safety system networks and remote devices behind firewalls and isolate them from the business network. * Install physical controls so no unauthorized personnel can access your industrial control and safety systems, components, peripheral equipment, and networks. * Place all controllers in locked cabinets and never leave them in the “Program” mode. * Never connect programming software to any network other than the network intended for that device. * Scan all methods of mobile data exchange with the isolated network such as CDs, USB drives, etc. before use in the terminals or any node connected to these networks. * Never allow mobile devices that have connected to any other network besides the intended network to connect to the safety or control networks without proper sanitation. * Minimize network exposure for all control system devices and systems and ensure that they are not accessible from the Internet. * When remote access is required, use secure methods, such as Virtual Private Networks (VPNs). Recognize that VPNs may have vulnerabilities and should be updated to the most current version available. Also, understand that VPNs are only as secure as the connected devices. For more information refer to the Schneider Electric Recommended Cybersecurity Best Practices document.
For More Information
This document provides an overview of the identified vulnerability or vulnerabilities and actions required to mitigate. For more details and assistance on how to protect your installation, contact your local Schneider Electric representative or Schneider Electric Industrial Cybersecurity Services: https://www.se.com/ww/en/work/solutions/cybersecurity/. These organizations will be fully aware of this situation and can support you through the process. For further information related to cybersecurity in Schneider Electric’s products, visit the company’s cybersecurity support portal page: https://www.se.com/ww/en/work/support/cybersecurity/overview.jsp
LEGAL DISCLAIMER
THIS NOTIFICATION DOCUMENT, THE INFORMATION CONTAINED HEREIN, AND ANY MATERIALS LINKED FROM IT (COLLECTIVELY, THIS “NOTIFICATION”) ARE INTENDED TO HELP PROVIDE AN OVERVIEW OF THE IDENTIFIED SITUATION AND SUGGESTED MITIGATION ACTIONS, REMEDIATION, FIX, AND/OR GENERAL SECURITY RECOMMENDATIONS AND IS PROVIDED ON AN “AS-IS” BASIS WITHOUT WARRANTY OR GUARANTEE OF ANY KIND. SCHNEIDER ELECTRIC DISCLAIMS ALL WARRANTIES RELATING TO THIS NOTIFICATION, EITHER EXPRESS OR IMPLIED, INCLUDING WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. SCHNEIDER ELECTRIC MAKES NO WARRANTY THAT THE NOTIFICATION WILL RESOLVE THE IDENTIFIED SITUATION. IN NO EVENT SHALL SCHNEIDER ELECTRIC BE LIABLE FOR ANY DAMAGES OR LOSSES WHATSOEVER IN CONNECTION WITH THIS NOTIFICATION, INCLUDING DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF SCHNEIDER ELECTRIC HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. YOUR USE OF THIS NOTIFICATION IS AT YOUR OWN RISK, AND YOU ARE SOLELY LIABLE FOR ANY DAMAGES TO YOUR SYSTEMS OR ASSETS OR OTHER LOSSES THAT MAY RESULT FROM YOUR USE OF THIS NOTIFICATION. SCHNEIDER ELECTRIC RESERVES THE RIGHT TO UPDATE OR CHANGE THIS NOTIFICATION AT ANY TIME AND IN ITS SOLE DISCRETION
About Schneider Electric
At Schneider, we believe access to energy and digital is a basic human right. We empower all to do more with less, ensuring Life Is On everywhere, for everyone, at every moment. We provide energy and automation digital solutions for efficiency and sustainability. We combine world-leading energy technologies, real-time automation, software and services into integrated solutions for Homes, Buildings, Data Centers, Infrastructure and Industries. We are committed to unleash the infinite possibilities of an open, global, innovative community that is passionate with our Meaningful Purpose, Inclusive and Empowered values. www.se.com
Overview
Schneider Electric is aware of multiple vulnerabilities in the Modicon M218, M241, M251 and M258 Logic Controllers, SoMachine & SoMachine Motion, and EcoStruxure Machine Expert products. The Ecostruxure Machine Expert products are programmable logic controllers and associated programming software. Failure to apply the remediations provided below may risk denial of service or potential arbitrary code execution. Nov 2020 Update: Added remediation for M258
Product Specific Reccomendations
Secure the network communications between the engineering workstation and the controllers to ensure trustworthiness.• Harden the Engineering Workstationo Follow workstation, network, and site hardening guidelines in the Cybersecurity Best Practices guide available for download here https://www.se.com/ww/en/download/document/CS-Best-Practices-2019-340/ . • Enable Application WhitelistingSchneider Electric strongly recommends applying a whitelisting solution to mitigate the risk of this and other vulnerabilities. For assistance with this step, contact our Cybersecurity Services team https://www.se.com/us/en/work/services/field-services/industrial-automation/industrial-cybersecurity/industrial-cybersecurity.jsp .
To clipboard 

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    "notes": [
      {
        "category": "general",
        "text": "We strongly recommend the following industry cybersecurity best practices.\n\nhttps://www.se.com/us/en/download/document/7EN52-0390/\n* Locate control and safety system networks and remote devices behind firewalls and isolate them from the business network.\n* Install physical controls so no unauthorized personnel can access your industrial control and safety systems, components, peripheral equipment, and networks.\n* Place all controllers in locked cabinets and never leave them in the \u201cProgram\u201d mode.\n* Never connect programming software to any network other than the network intended for that device.\n* Scan all methods of mobile data exchange with the isolated network such as CDs, USB drives, etc. before use in the terminals or any node connected to these networks.\n* Never allow mobile devices that have connected to any other network besides the intended network to connect to the safety or control networks without proper sanitation.\n* Minimize network exposure for all control system devices and systems and ensure that they are not accessible from the Internet.\n* When remote access is required, use secure methods, such as Virtual Private Networks (VPNs). Recognize that VPNs may have vulnerabilities and should be updated to the most current version available. Also, understand that VPNs are only as secure as the connected devices.\nFor more information refer to the Schneider Electric Recommended Cybersecurity Best Practices document. \n",
        "title": "General Security Recommendations"
      },
      {
        "category": "general",
        "text": "This document provides an overview of the identified vulnerability or vulnerabilities and actions required to mitigate. For more details and assistance on how to protect your installation, contact your local Schneider Electric representative or Schneider Electric Industrial Cybersecurity Services: https://www.se.com/ww/en/work/solutions/cybersecurity/. These organizations will be fully aware of this situation and can support you through the process.\nFor further information related to cybersecurity in Schneider Electric\u2019s products, visit the company\u2019s cybersecurity support portal page: https://www.se.com/ww/en/work/support/cybersecurity/overview.jsp",
        "title": "For More Information"
      },
      {
        "category": "legal_disclaimer",
        "text": "THIS NOTIFICATION DOCUMENT, THE INFORMATION CONTAINED HEREIN, AND ANY MATERIALS LINKED FROM IT (COLLECTIVELY, THIS \u201cNOTIFICATION\u201d) ARE INTENDED TO HELP PROVIDE AN OVERVIEW OF THE IDENTIFIED SITUATION AND SUGGESTED MITIGATION ACTIONS, REMEDIATION, FIX, AND/OR GENERAL SECURITY RECOMMENDATIONS AND IS PROVIDED ON AN \u201cAS-IS\u201d BASIS WITHOUT WARRANTY OR GUARANTEE OF ANY KIND.  SCHNEIDER ELECTRIC DISCLAIMS ALL WARRANTIES RELATING TO THIS NOTIFICATION, EITHER EXPRESS OR IMPLIED, INCLUDING WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. SCHNEIDER ELECTRIC MAKES NO WARRANTY THAT THE NOTIFICATION WILL RESOLVE THE IDENTIFIED SITUATION. IN NO EVENT SHALL SCHNEIDER ELECTRIC BE LIABLE FOR ANY DAMAGES OR LOSSES WHATSOEVER IN CONNECTION WITH THIS NOTIFICATION, INCLUDING DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF SCHNEIDER ELECTRIC HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. YOUR USE OF THIS NOTIFICATION IS AT YOUR OWN RISK, AND YOU ARE SOLELY LIABLE FOR ANY DAMAGES TO YOUR SYSTEMS OR ASSETS OR OTHER LOSSES THAT MAY RESULT FROM YOUR USE OF THIS NOTIFICATION. SCHNEIDER ELECTRIC RESERVES THE RIGHT TO UPDATE OR CHANGE THIS NOTIFICATION AT ANY TIME AND IN ITS SOLE DISCRETION",
        "title": "LEGAL DISCLAIMER"
      },
      {
        "category": "general",
        "text": "At Schneider, we believe access to energy and digital is a basic human right. We empower all to do more with less, ensuring Life Is On everywhere, for everyone, at every moment.\n\nWe provide energy and automation digital solutions for efficiency and sustainability. We combine world-leading energy technologies, real-time automation, software and services into integrated solutions for Homes, Buildings, Data Centers, Infrastructure and Industries.\n\nWe are committed to unleash the infinite possibilities of an open, global, innovative community that is passionate with our Meaningful Purpose, Inclusive and Empowered values.\n\nwww.se.com ",
        "title": "About Schneider Electric"
      },
      {
        "category": "summary",
        "text": "Schneider Electric is aware of multiple vulnerabilities in the Modicon M218, M241, M251 and \r\nM258 Logic Controllers, SoMachine \u0026 SoMachine Motion, and EcoStruxure Machine Expert \r\nproducts. \r\nThe Ecostruxure Machine Expert products are programmable logic controllers and associated \r\nprogramming software. \r\nFailure to apply the remediations provided below may risk denial of service or potential arbitrary \r\ncode execution. \r\nNov 2020 Update: Added remediation for M258",
        "title": "Overview"
      },
      {
        "category": "general",
        "text": "Secure the network communications between the engineering workstation and the controllers to ensure trustworthiness.\u2022 Harden the Engineering Workstationo Follow workstation, network, and site hardening guidelines in the Cybersecurity Best Practices guide available for download here https://www.se.com/ww/en/download/document/CS-Best-Practices-2019-340/ . \u2022 Enable Application WhitelistingSchneider Electric strongly recommends applying a whitelisting solution to mitigate the risk of this and other vulnerabilities. For assistance with this step, contact our Cybersecurity Services team https://www.se.com/us/en/work/services/field-services/industrial-automation/industrial-cybersecurity/industrial-cybersecurity.jsp .",
        "title": "Product Specific Reccomendations"
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    "title": "Modicon M218/M241/M251/M258 Logic Controllers,SoMachine/SoMachine Motion, EcoStruxure\u2122 Machine Expert",
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          "summary": "Original Release"
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        {
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          "number": "1.1.0",
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  "vulnerabilities": [
    {
      "acknowledgments": [
        {
          "names": [
            "Rongkuan Ma",
            "Shunkai Zhu",
            "Peng Cheng"
          ],
          "organization": "307Lab at Zhejiang University"
        }
      ],
      "cve": "CVE-2020-7487",
      "cwe": {
        "id": "CWE-345",
        "name": "Insufficient Verification of Data Authenticity"
      },
      "notes": [
        {
          "category": "description",
          "text": "CWE-345: Insufficient Verification of Data Authenticity vulnerability exists which could allow \r\nthe attacker to execute malicious code on the Modicon M218, M241, M251, and M258 \r\ncontrollers.",
          "title": "CVE Description"
        }
      ],
      "product_status": {
        "fixed": [
          "7"
        ],
        "known_affected": [
          "1",
          "2",
          "3",
          "4",
          "5",
          "6"
        ]
      },
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "For Modicon M258 (all versions prior to V5.0.4.11): \r\nModicon M258 offer has been migrated to EcoStruxure Machine Expert v1.2.5. A fix has \r\nbeen implemented for both (CVE-2020-7087 and CVE-2020-7488) vulnerabilities on \r\nfirmware version V5.0.4.11. We recommend the customer to migrate from the legacy \r\nSoMachine application to the new version of EcoStruxure Machine Expert application \r\n(https://www.se.com/fr/fr/product-range-download/2226-ecostruxure%E2%84%A2-\r\nmachine-expert/#/software-firmware-tab) and update the firmware to the latest version \r\nthrough Schneider Electric Software Update (SESU). ",
          "product_ids": [
            "6"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://www.se.com/fr/fr/product-range-download/2226-ecostruxure%E2%84%A2-machine-expert/#/software-firmware-tab"
        },
        {
          "category": "mitigation",
          "details": "The following workarounds and mitigations should be applied by customers to reduce \r\nthe risk. All steps are required. \r\nStep 1: Update software and firmware.\r\n\u2022 On the engineering workstation, update to EcoStruxure Machine Expert v1.2 or \r\nabove: https://www.se.com/fr/fr/product-range-download/2226-\r\necostruxure%E2%84%A2-machine-expert/#/software-firmware-tab",
          "product_ids": [
            "1",
            "2"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://www.se.com/fr/fr/product-range-download/2226-ecostruxure%E2%84%A2-machine-expert/#/software-firmware-tab"
        },
        {
          "category": "mitigation",
          "details": "The following workarounds and mitigations should be applied by customers to reduce \r\nthe risk. All steps are required. \r\nStep 1: Update software and firmware.\r\n\u2022 On Modicon M218/M241/M251 Logic Controllers, update to latest firmware \r\nversion available through Schneider Electric Software Update (SESU)",
          "product_ids": [
            "3",
            "4",
            "5"
          ],
          "restart_required": {
            "category": "none"
          }
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "HIGH",
            "attackVector": "ADJACENT_NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 5.4,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.0/AV:A/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:H",
            "version": "3.0"
          },
          "products": [
            "1",
            "2",
            "3",
            "4",
            "5",
            "6"
          ]
        }
      ],
      "title": "CVE-2020-7487"
    },
    {
      "acknowledgments": [
        {
          "names": [
            "Rongkuan Ma",
            "Shunkai Zhu",
            "Peng Cheng"
          ],
          "organization": "307Lab at Zhejiang University"
        }
      ],
      "cve": "CVE-2020-7488",
      "cwe": {
        "id": "CWE-319",
        "name": "Cleartext Transmission of Sensitive Information"
      },
      "notes": [
        {
          "category": "description",
          "text": "CWE-319: Cleartext Transmission of Sensitive Information vulnerability exists which could \r\nleak sensitive information transmitted between the software and the Modicon M218, M241,\r\nM251, and M258 controllers.",
          "title": "CVE Description"
        }
      ],
      "product_status": {
        "fixed": [
          "7"
        ],
        "known_affected": [
          "1",
          "2",
          "3",
          "4",
          "5",
          "6"
        ]
      },
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "For Modicon M258 (all versions prior to V5.0.4.11): \r\nModicon M258 offer has been migrated to EcoStruxure Machine Expert v1.2.5. A fix has \r\nbeen implemented for both (CVE-2020-7087 and CVE-2020-7488) vulnerabilities on \r\nfirmware version V5.0.4.11. We recommend the customer to migrate from the legacy \r\nSoMachine application to the new version of EcoStruxure Machine Expert application \r\n(https://www.se.com/fr/fr/product-range-download/2226-ecostruxure%E2%84%A2-\r\nmachine-expert/#/software-firmware-tab) and update the firmware to the latest version \r\nthrough Schneider Electric Software Update (SESU). ",
          "product_ids": [
            "6"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://www.se.com/fr/fr/product-range-download/2226-ecostruxure%E2%84%A2-machine-expert/#/software-firmware-tab"
        },
        {
          "category": "mitigation",
          "details": "The following workarounds and mitigations should be applied by customers to reduce \r\nthe risk. All steps are required. \r\nStep 1: Update software and firmware.\r\n\u2022 On the engineering workstation, update to EcoStruxure Machine Expert v1.2 or \r\nabove: https://www.se.com/fr/fr/product-range-download/2226-\r\necostruxure%E2%84%A2-machine-expert/#/software-firmware-tab",
          "product_ids": [
            "1",
            "2"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://www.se.com/fr/fr/product-range-download/2226-ecostruxure%E2%84%A2-machine-expert/#/software-firmware-tab"
        },
        {
          "category": "mitigation",
          "details": "The following workarounds and mitigations should be applied by customers to reduce \r\nthe risk. All steps are required. \r\nStep 1: Update software and firmware.\r\n\u2022 On Modicon M218/M241/M251 Logic Controllers, update to latest firmware \r\nversion available through Schneider Electric Software Update (SESU)",
          "product_ids": [
            "3",
            "4",
            "5"
          ],
          "restart_required": {
            "category": "none"
          }
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "HIGH",
            "attackVector": "ADJACENT_NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 5.4,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.0/AV:A/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:H",
            "version": "3.0"
          },
          "products": [
            "1",
            "2",
            "3",
            "4",
            "5",
            "6"
          ]
        }
      ],
      "title": "CVE-2020-7488"
    }
  ]
}


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Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.