{
  "document": {
    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "distribution": {
      "text": "Public",
      "tlp": {
        "label": "WHITE"
      }
    },
    "lang": "en-US",
    "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 its PLC Simulator for EcoStruxure\u2122 Control Expert product.\r\nPLC Simulator feature is part of the EcostruxureTM Control Expert and EcostruxureTM Process Expert software and it helps users to review and test their configurations files in a simulation environment; it is not intended to be used as a controller CPU in a production environment.\r\nFailure to apply the mitigations provided below may risk unauthorized command execution or denial of service, which could result in undesired actions by the PLC simulator software.\r\nMarch 2023 Update: An additional mitigation has been provided using a Cybersecurity Application Note (page 3).",
        "title": "Overview"
      }
    ],
    "publisher": {
      "category": "vendor",
      "contact_details": "cybersecurity@se.com",
      "name": "Schneider Electric CPCERT",
      "namespace": "https://www.se.com/ww/en/work/support/cybersecurity/security-notifications.jsp"
    },
    "references": [
      {
        "category": "self",
        "summary": "PLC Simulator on EcoStruxure\u2122 Control Expert and Process Expert - SEVD-2020-315-07 PDF Version",
        "url": "https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2020-315-07\u0026p_enDocType=Security+and+Safety+Notice\u0026p_File_Name=SEVD-2020-315-07_PLC_Simulator_on_EcoStruxure%E2%84%A2_Control_Expert_and_Process_Expert_Security_Notification.pdf"
      },
      {
        "category": "self",
        "summary": "PLC Simulator on EcoStruxure\u2122 Control Expert and Process Expert - SEVD-2020-315-07 CSAF Version",
        "url": "https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2020-315-07\u0026p_enDocType=Security+and+Safety+Notice\u0026p_File_Name=sevd-2020-315-07.json"
      },
      {
        "category": "external",
        "summary": "Recommended Cybersecurity Best Practices",
        "url": "https://www.se.com/us/en/download/document/7EN52-0390/"
      }
    ],
    "title": "PLC Simulator on EcoStruxure\u2122 Control Expert and Process Expert",
    "tracking": {
      "current_release_date": "2023-03-14T15:07:11.000Z",
      "generator": {
        "date": "2023-03-13T16:18:08.115Z",
        "engine": {
          "name": "Schneider Electric CSAF Generator",
          "version": "1.2"
        }
      },
      "id": "SEVD-2020-315-07",
      "initial_release_date": "2020-11-10T15:07:11.000Z",
      "revision_history": [
        {
          "date": "2020-11-10T15:07:11.000Z",
          "number": "1.0.0",
          "summary": "Original Release"
        },
        {
          "date": "2021-03-09T15:07:11.000Z",
          "number": "2.0.0",
          "summary": "Future remediation plan will include a fix for CVE-2020-7559 (page 2)"
        },
        {
          "date": "2021-06-08T15:07:11.000Z",
          "number": "3.0.0",
          "summary": "PLC Simulator for EcostruxureTM Process Expert has been added as an affected product. In addition, a new mitigation option has been added. (page 1-3)"
        },
        {
          "date": "2021-07-13T15:07:11.000Z",
          "number": "3.1.0",
          "summary": "Added fix of CVE-2020-7559 for PLC Simulator for EcoStruxure\u2122 Control Expert"
        },
        {
          "date": "2023-03-14T15:07:11.000Z",
          "number": "4.0.0",
          "summary": "An additional mitigation has been provided using a Cybersecurity Application Note (page 3)."
        }
      ],
      "status": "final",
      "version": "4.0.0"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c15.0 SP1",
                "product": {
                  "name": "Schneider Electric PLC Simulator for EcoStruxure\u2122 Control Expert prior to v15.0 SP1",
                  "product_id": "1"
                }
              }
            ],
            "category": "product_name",
            "name": "PLC Simulator for EcoStruxure\u2122 Control Expert"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:all/*",
                "product": {
                  "name": "Schneider Electric PLC Simulator for Unity Pro (former name of EcoStruxure\u2122 Control Expert) all versions",
                  "product_id": "2"
                }
              }
            ],
            "category": "product_name",
            "name": "PLC Simulator for Unity Pro (former name of EcoStruxure\u2122 Control Expert)"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:all/*",
                "product": {
                  "name": "Schneider Electric PLC Simulator for EcoStruxure\u2122 Process Expert all versions",
                  "product_id": "3"
                }
              }
            ],
            "category": "product_name",
            "name": "PLC Simulator for EcoStruxure\u2122 Process Expert"
          },
          {
            "branches": [
              {
                "category": "product_version",
                "name": "15.0 SP1",
                "product": {
                  "name": "Schneider Electric EcoStruxure\u2122 Control Expert 15.0 SP1",
                  "product_id": "4"
                }
              }
            ],
            "category": "product_name",
            "name": "EcoStruxure\u2122 Control Expert"
          }
        ],
        "category": "vendor",
        "name": "Schneider Electric"
      }
    ]
  },
  "vulnerabilities": [
    {
      "acknowledgments": [
        {
          "names": [
            "Alexander Perez-Palma and Jared Rittle"
          ],
          "organization": "Cisco Talos"
        }
      ],
      "cve": "CVE-2020-7559",
      "cwe": {
        "id": "CWE-120",
        "name": "Buffer Copy without Checking Size of Input (\u0027Classic Buffer Overflow\u0027)"
      },
      "notes": [
        {
          "category": "description",
          "text": "A CWE-120: Buffer Copy without Checking Size of Input (\u0027Classic Buffer Overflow\u0027) vulnerability exists that could cause a crash of the PLC simulator present in EcoStruxure\u2122 Control Expert software and EcoStruxure\u2122 Process Expert when receiving a specially crafted request over Modbus.",
          "title": "CVE Description"
        }
      ],
      "product_status": {
        "fixed": [
          "4"
        ],
        "known_affected": [
          "1"
        ]
      },
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "EcoStruxure\u2122 Control Expert Version 15.0 SP1 product includes a fix for the vulnerability CVE-2020-7559 and is available for download here:\r\nhttps://www.se.com/ww/en/download/document/EcoStruxureControlExpert_15SP1\r\nCustomers should use appropriate patching methodologies when applying these patches to their systems. We strongly recommend the use of back-ups and evaluating the impact of these patches in a Test and Development environment or on an offline infrastructure.\r\nContact Schneider Electric\u2019s Customer Care Center if you need assistance removing a patch.\r\nIf customers choose not to apply the remediation provided above, they should immediately follow the recommendations in the Mitigation section below to reduce the risk of exploit.",
          "product_ids": [
            "1"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://www.se.com/ww/en/download/document/EcoStruxureControlExpert_15SP1"
        },
        {
          "category": "mitigation",
          "details": "Customers should immediately apply the following mitigations to reduce the risk of exploit of the CVE-2020-7538, CVE-2020-28211, CVE-2020-28212, CVE-2020-28213\r\n\u2022 V15.0 of the EcoStruxure\u2122 Control Expert software includes a mitigation for these vulnerabilities, when applied with the steps outlined below, and is available for download here:\r\n\r\nhttps://www.se.com/ww/en/product-range-download/548-ecostruxure%E2%84%A2-control-expert/?parent-subcategory-id=3950\u0026filter=business-1-industrial-automation-and-control\u0026selected-node-id=12365959203#/software-firmware-tab\r\n\u2022 EcoStruxure\u2122 Process Expert 2020 R2 software, includes a mitigation, when applied with the steps outlined below, for these vulnerabilities and is available for download on the EcoStruxure Process Expert Support Portal (registration is needed):\r\nhttps://app.schneider-electric.com/ecostruxure-hybrid-dcs/\r\nAfter downloading the updated software listed above, the following steps are required to mitigate the vulnerability:\r\n1. Harden the Engineering Workstation running PLC Simulator\r\no Follow workstation, network and site-hardening guidelines in the Recommended Cybersecurity Best Practices guide available for download here.\r\no To help protect workstations running Schneider Electric and other user applications against execution of unauthorized applications and malicious files, Schneider Electric recommends using McAfee Application and Change Control software. Refer to the Cybsercurity Application Note available here.\r\n2. On V15.0 of the EcoStruxure\u2122 Control Expert and EcoStruxure\u2122 Process Expert 2020 R2 software, in the option dialog box of the PLC simulator, customers are requested to set the Listening IP Address to:\r\na. 127.0.0.1 (localhost), which will prevent remote network connections to the PLC simulator; or\r\nb. When deployed as a remote access system the IP Address should be configured to be the same as the system that will be running the PLC simulator.\r\nNote: Customers are informed that on EcoStruxure\u2122 Control Expert v15.0 and EcoStruxure\u2122 Process Expert 2020 R2 software and prior, the default listening IP address is: 0.0.0.0. The default setting exposes the PLC simulator to the vulnerabilities described in this bulletin. The default listening IP address is configurable from v15.0 and 2020 R2 and above.\r\nUpdate: Starting with EcoStruxure\u2122 Control Expert v15.0 SP1 and above the default listening IP address is: 127.0.0.1. The same setting is also recommended for the PLC Simulator and is documented in the PLC Simulator user manual available here\r\n\r\nCustomers should use appropriate patching methodologies when applying these patches to their systems. We strongly recommend the use of back-ups and evaluating the impact of these patches in a Test and Development environment or on an offline infrastructure. Contact Schneider Electric\u2019s Customer Care Center if you need assistance removing a patch\r\n\r\nIf customers choose not to apply the mitigations provided above or in case of older versions of EcoStruxure\u2122 Control Expert software, they should immediately apply the following mitigations to reduce the risk of exploit:\r\n1. Setup network segmentation and implement a firewall to block all unauthorized access to port 502/TCP\r\n2. Harden the Engineering Workstation running PLC Simulator for EcoStruxure\u2122 Control Expert and EcoStruxure\u2122 Process Expert\r\no Follow workstation, network and site-hardening guidelines in the Recommended Cybersecurity Best Practices guide available for download here.\r\nTo ensure you are informed of all updates, including details on affected products and remediation plans, subscribe to Schneider Electric\u2019s security notification service here: https://www.se.com/en/work/support/cybersecurity/security-notifications.jsp",
          "product_ids": [
            "1",
            "2",
            "3"
          ],
          "restart_required": {
            "category": "none"
          }
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 10,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H",
            "version": "3.0"
          },
          "products": [
            "1"
          ]
        }
      ],
      "title": "CVE-2020-7559"
    },
    {
      "acknowledgments": [
        {
          "names": [
            "Alexander Perez-Palma and Jared Rittle"
          ],
          "organization": "Cisco Talos"
        }
      ],
      "cve": "CVE-2020-28212",
      "cwe": {
        "id": "CWE-307",
        "name": "Improper Restriction of Excessive Authentication Attempts"
      },
      "notes": [
        {
          "category": "description",
          "text": "A CWE-307: Improper Restriction of Excessive Authentication Attempts vulnerability exists that could cause unauthorized command execution when a brute force attack is done over Modbus.",
          "title": "CVE Description"
        }
      ],
      "product_status": {
        "known_affected": [
          "1",
          "2",
          "3"
        ]
      },
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "EcoStruxure\u2122 Control Expert Version 15.0 SP1 product includes a fix for the vulnerability CVE-2020-7559 and is available for download here:\r\nhttps://www.se.com/ww/en/download/document/EcoStruxureControlExpert_15SP1\r\nCustomers should use appropriate patching methodologies when applying these patches to their systems. We strongly recommend the use of back-ups and evaluating the impact of these patches in a Test and Development environment or on an offline infrastructure.\r\nContact Schneider Electric\u2019s Customer Care Center if you need assistance removing a patch.\r\nIf customers choose not to apply the remediation provided above, they should immediately follow the recommendations in the Mitigation section below to reduce the risk of exploit.",
          "product_ids": [
            "1"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://www.se.com/ww/en/download/document/EcoStruxureControlExpert_15SP1"
        },
        {
          "category": "mitigation",
          "details": "Customers should immediately apply the following mitigations to reduce the risk of exploit of the CVE-2020-7538, CVE-2020-28211, CVE-2020-28212, CVE-2020-28213\r\n\u2022 V15.0 of the EcoStruxure\u2122 Control Expert software includes a mitigation for these vulnerabilities, when applied with the steps outlined below, and is available for download here:\r\n\r\nhttps://www.se.com/ww/en/product-range-download/548-ecostruxure%E2%84%A2-control-expert/?parent-subcategory-id=3950\u0026filter=business-1-industrial-automation-and-control\u0026selected-node-id=12365959203#/software-firmware-tab\r\n\u2022 EcoStruxure\u2122 Process Expert 2020 R2 software, includes a mitigation, when applied with the steps outlined below, for these vulnerabilities and is available for download on the EcoStruxure Process Expert Support Portal (registration is needed):\r\nhttps://app.schneider-electric.com/ecostruxure-hybrid-dcs/\r\nAfter downloading the updated software listed above, the following steps are required to mitigate the vulnerability:\r\n1. Harden the Engineering Workstation running PLC Simulator\r\no Follow workstation, network and site-hardening guidelines in the Recommended Cybersecurity Best Practices guide available for download here.\r\no To help protect workstations running Schneider Electric and other user applications against execution of unauthorized applications and malicious files, Schneider Electric recommends using McAfee Application and Change Control software. Refer to the Cybsercurity Application Note available here.\r\n2. On V15.0 of the EcoStruxure\u2122 Control Expert and EcoStruxure\u2122 Process Expert 2020 R2 software, in the option dialog box of the PLC simulator, customers are requested to set the Listening IP Address to:\r\na. 127.0.0.1 (localhost), which will prevent remote network connections to the PLC simulator; or\r\nb. When deployed as a remote access system the IP Address should be configured to be the same as the system that will be running the PLC simulator.\r\nNote: Customers are informed that on EcoStruxure\u2122 Control Expert v15.0 and EcoStruxure\u2122 Process Expert 2020 R2 software and prior, the default listening IP address is: 0.0.0.0. The default setting exposes the PLC simulator to the vulnerabilities described in this bulletin. The default listening IP address is configurable from v15.0 and 2020 R2 and above.\r\nUpdate: Starting with EcoStruxure\u2122 Control Expert v15.0 SP1 and above the default listening IP address is: 127.0.0.1. The same setting is also recommended for the PLC Simulator and is documented in the PLC Simulator user manual available here\r\n\r\nCustomers should use appropriate patching methodologies when applying these patches to their systems. We strongly recommend the use of back-ups and evaluating the impact of these patches in a Test and Development environment or on an offline infrastructure. Contact Schneider Electric\u2019s Customer Care Center if you need assistance removing a patch\r\n\r\nIf customers choose not to apply the mitigations provided above or in case of older versions of EcoStruxure\u2122 Control Expert software, they should immediately apply the following mitigations to reduce the risk of exploit:\r\n1. Setup network segmentation and implement a firewall to block all unauthorized access to port 502/TCP\r\n2. Harden the Engineering Workstation running PLC Simulator for EcoStruxure\u2122 Control Expert and EcoStruxure\u2122 Process Expert\r\no Follow workstation, network and site-hardening guidelines in the Recommended Cybersecurity Best Practices guide available for download here.\r\nTo ensure you are informed of all updates, including details on affected products and remediation plans, subscribe to Schneider Electric\u2019s security notification service here: https://www.se.com/en/work/support/cybersecurity/security-notifications.jsp",
          "product_ids": [
            "1",
            "2",
            "3"
          ],
          "restart_required": {
            "category": "none"
          }
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 9.1,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "NONE",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H",
            "version": "3.0"
          },
          "products": [
            "1",
            "2",
            "3"
          ]
        }
      ],
      "title": "CVE-2020-28212"
    },
    {
      "acknowledgments": [
        {
          "names": [
            "Alexander Perez-Palma and Jared Rittle"
          ],
          "organization": "Cisco Talos"
        }
      ],
      "cve": "CVE-2020-28213",
      "cwe": {
        "id": "CWE-494",
        "name": "Download of Code Without Integrity Check"
      },
      "notes": [
        {
          "category": "description",
          "text": "A CWE-494: Download of Code Without Integrity Check vulnerability exists that could cause unauthorized command execution when sending specially crafted requests over Modbus.",
          "title": "CVE Description"
        }
      ],
      "product_status": {
        "known_affected": [
          "1",
          "2",
          "3"
        ]
      },
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "EcoStruxure\u2122 Control Expert Version 15.0 SP1 product includes a fix for the vulnerability CVE-2020-7559 and is available for download here:\r\nhttps://www.se.com/ww/en/download/document/EcoStruxureControlExpert_15SP1\r\nCustomers should use appropriate patching methodologies when applying these patches to their systems. We strongly recommend the use of back-ups and evaluating the impact of these patches in a Test and Development environment or on an offline infrastructure.\r\nContact Schneider Electric\u2019s Customer Care Center if you need assistance removing a patch.\r\nIf customers choose not to apply the remediation provided above, they should immediately follow the recommendations in the Mitigation section below to reduce the risk of exploit.",
          "product_ids": [
            "1"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://www.se.com/ww/en/download/document/EcoStruxureControlExpert_15SP1"
        },
        {
          "category": "mitigation",
          "details": "Customers should immediately apply the following mitigations to reduce the risk of exploit of the CVE-2020-7538, CVE-2020-28211, CVE-2020-28212, CVE-2020-28213\r\n\u2022 V15.0 of the EcoStruxure\u2122 Control Expert software includes a mitigation for these vulnerabilities, when applied with the steps outlined below, and is available for download here:\r\n\r\nhttps://www.se.com/ww/en/product-range-download/548-ecostruxure%E2%84%A2-control-expert/?parent-subcategory-id=3950\u0026filter=business-1-industrial-automation-and-control\u0026selected-node-id=12365959203#/software-firmware-tab\r\n\u2022 EcoStruxure\u2122 Process Expert 2020 R2 software, includes a mitigation, when applied with the steps outlined below, for these vulnerabilities and is available for download on the EcoStruxure Process Expert Support Portal (registration is needed):\r\nhttps://app.schneider-electric.com/ecostruxure-hybrid-dcs/\r\nAfter downloading the updated software listed above, the following steps are required to mitigate the vulnerability:\r\n1. Harden the Engineering Workstation running PLC Simulator\r\no Follow workstation, network and site-hardening guidelines in the Recommended Cybersecurity Best Practices guide available for download here.\r\no To help protect workstations running Schneider Electric and other user applications against execution of unauthorized applications and malicious files, Schneider Electric recommends using McAfee Application and Change Control software. Refer to the Cybsercurity Application Note available here.\r\n2. On V15.0 of the EcoStruxure\u2122 Control Expert and EcoStruxure\u2122 Process Expert 2020 R2 software, in the option dialog box of the PLC simulator, customers are requested to set the Listening IP Address to:\r\na. 127.0.0.1 (localhost), which will prevent remote network connections to the PLC simulator; or\r\nb. When deployed as a remote access system the IP Address should be configured to be the same as the system that will be running the PLC simulator.\r\nNote: Customers are informed that on EcoStruxure\u2122 Control Expert v15.0 and EcoStruxure\u2122 Process Expert 2020 R2 software and prior, the default listening IP address is: 0.0.0.0. The default setting exposes the PLC simulator to the vulnerabilities described in this bulletin. The default listening IP address is configurable from v15.0 and 2020 R2 and above.\r\nUpdate: Starting with EcoStruxure\u2122 Control Expert v15.0 SP1 and above the default listening IP address is: 127.0.0.1. The same setting is also recommended for the PLC Simulator and is documented in the PLC Simulator user manual available here\r\n\r\nCustomers should use appropriate patching methodologies when applying these patches to their systems. We strongly recommend the use of back-ups and evaluating the impact of these patches in a Test and Development environment or on an offline infrastructure. Contact Schneider Electric\u2019s Customer Care Center if you need assistance removing a patch\r\n\r\nIf customers choose not to apply the mitigations provided above or in case of older versions of EcoStruxure\u2122 Control Expert software, they should immediately apply the following mitigations to reduce the risk of exploit:\r\n1. Setup network segmentation and implement a firewall to block all unauthorized access to port 502/TCP\r\n2. Harden the Engineering Workstation running PLC Simulator for EcoStruxure\u2122 Control Expert and EcoStruxure\u2122 Process Expert\r\no Follow workstation, network and site-hardening guidelines in the Recommended Cybersecurity Best Practices guide available for download here.\r\nTo ensure you are informed of all updates, including details on affected products and remediation plans, subscribe to Schneider Electric\u2019s security notification service here: https://www.se.com/en/work/support/cybersecurity/security-notifications.jsp",
          "product_ids": [
            "1",
            "2",
            "3"
          ],
          "restart_required": {
            "category": "none"
          }
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 8.1,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H",
            "version": "3.0"
          },
          "products": [
            "1",
            "2",
            "3"
          ]
        }
      ],
      "title": "CVE-2020-28213"
    },
    {
      "acknowledgments": [
        {
          "names": [
            "Alexander Perez-Palma and Jared Rittle"
          ],
          "organization": "Cisco Talos"
        }
      ],
      "cve": "CVE-2020-7538",
      "cwe": {
        "id": "CWE-754",
        "name": "Improper Check for Unusual or Exceptional Conditions"
      },
      "notes": [
        {
          "category": "description",
          "text": "A CWE-754: Improper Check for Unusual or Exceptional Conditions vulnerability exists that could cause a crash of the PLC simulator present in EcoStruxure\u2122 Control Expert software and EcoStruxure\u2122 Process Expert when receiving a specially crafted request over Modbus.",
          "title": "CVE Description"
        }
      ],
      "product_status": {
        "known_affected": [
          "1",
          "2",
          "3"
        ]
      },
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "EcoStruxure\u2122 Control Expert Version 15.0 SP1 product includes a fix for the vulnerability CVE-2020-7559 and is available for download here:\r\nhttps://www.se.com/ww/en/download/document/EcoStruxureControlExpert_15SP1\r\nCustomers should use appropriate patching methodologies when applying these patches to their systems. We strongly recommend the use of back-ups and evaluating the impact of these patches in a Test and Development environment or on an offline infrastructure.\r\nContact Schneider Electric\u2019s Customer Care Center if you need assistance removing a patch.\r\nIf customers choose not to apply the remediation provided above, they should immediately follow the recommendations in the Mitigation section below to reduce the risk of exploit.",
          "product_ids": [
            "1"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://www.se.com/ww/en/download/document/EcoStruxureControlExpert_15SP1"
        },
        {
          "category": "mitigation",
          "details": "Customers should immediately apply the following mitigations to reduce the risk of exploit of the CVE-2020-7538, CVE-2020-28211, CVE-2020-28212, CVE-2020-28213\r\n\u2022 V15.0 of the EcoStruxure\u2122 Control Expert software includes a mitigation for these vulnerabilities, when applied with the steps outlined below, and is available for download here:\r\n\r\nhttps://www.se.com/ww/en/product-range-download/548-ecostruxure%E2%84%A2-control-expert/?parent-subcategory-id=3950\u0026filter=business-1-industrial-automation-and-control\u0026selected-node-id=12365959203#/software-firmware-tab\r\n\u2022 EcoStruxure\u2122 Process Expert 2020 R2 software, includes a mitigation, when applied with the steps outlined below, for these vulnerabilities and is available for download on the EcoStruxure Process Expert Support Portal (registration is needed):\r\nhttps://app.schneider-electric.com/ecostruxure-hybrid-dcs/\r\nAfter downloading the updated software listed above, the following steps are required to mitigate the vulnerability:\r\n1. Harden the Engineering Workstation running PLC Simulator\r\no Follow workstation, network and site-hardening guidelines in the Recommended Cybersecurity Best Practices guide available for download here.\r\no To help protect workstations running Schneider Electric and other user applications against execution of unauthorized applications and malicious files, Schneider Electric recommends using McAfee Application and Change Control software. Refer to the Cybsercurity Application Note available here.\r\n2. On V15.0 of the EcoStruxure\u2122 Control Expert and EcoStruxure\u2122 Process Expert 2020 R2 software, in the option dialog box of the PLC simulator, customers are requested to set the Listening IP Address to:\r\na. 127.0.0.1 (localhost), which will prevent remote network connections to the PLC simulator; or\r\nb. When deployed as a remote access system the IP Address should be configured to be the same as the system that will be running the PLC simulator.\r\nNote: Customers are informed that on EcoStruxure\u2122 Control Expert v15.0 and EcoStruxure\u2122 Process Expert 2020 R2 software and prior, the default listening IP address is: 0.0.0.0. The default setting exposes the PLC simulator to the vulnerabilities described in this bulletin. The default listening IP address is configurable from v15.0 and 2020 R2 and above.\r\nUpdate: Starting with EcoStruxure\u2122 Control Expert v15.0 SP1 and above the default listening IP address is: 127.0.0.1. The same setting is also recommended for the PLC Simulator and is documented in the PLC Simulator user manual available here\r\n\r\nCustomers should use appropriate patching methodologies when applying these patches to their systems. We strongly recommend the use of back-ups and evaluating the impact of these patches in a Test and Development environment or on an offline infrastructure. Contact Schneider Electric\u2019s Customer Care Center if you need assistance removing a patch\r\n\r\nIf customers choose not to apply the mitigations provided above or in case of older versions of EcoStruxure\u2122 Control Expert software, they should immediately apply the following mitigations to reduce the risk of exploit:\r\n1. Setup network segmentation and implement a firewall to block all unauthorized access to port 502/TCP\r\n2. Harden the Engineering Workstation running PLC Simulator for EcoStruxure\u2122 Control Expert and EcoStruxure\u2122 Process Expert\r\no Follow workstation, network and site-hardening guidelines in the Recommended Cybersecurity Best Practices guide available for download here.\r\nTo ensure you are informed of all updates, including details on affected products and remediation plans, subscribe to Schneider Electric\u2019s security notification service here: https://www.se.com/en/work/support/cybersecurity/security-notifications.jsp",
          "product_ids": [
            "1",
            "2",
            "3"
          ],
          "restart_required": {
            "category": "none"
          }
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.0"
          },
          "products": [
            "1",
            "2",
            "3"
          ]
        }
      ],
      "title": "CVE-2020-7538"
    },
    {
      "acknowledgments": [
        {
          "names": [
            "Alexander Perez-Palma and Jared Rittle"
          ],
          "organization": "Cisco Talos"
        }
      ],
      "cve": "CVE-2020-28211",
      "cwe": {
        "id": "CWE-863",
        "name": "Incorrect Authorization"
      },
      "notes": [
        {
          "category": "description",
          "text": "A CWE-863: Incorrect Authorization vulnerability exists that could cause bypass of authentication when overwriting memory using a debugger.",
          "title": "CVE Description"
        }
      ],
      "product_status": {
        "known_affected": [
          "1",
          "2",
          "3"
        ]
      },
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "EcoStruxure\u2122 Control Expert Version 15.0 SP1 product includes a fix for the vulnerability CVE-2020-7559 and is available for download here:\r\nhttps://www.se.com/ww/en/download/document/EcoStruxureControlExpert_15SP1\r\nCustomers should use appropriate patching methodologies when applying these patches to their systems. We strongly recommend the use of back-ups and evaluating the impact of these patches in a Test and Development environment or on an offline infrastructure.\r\nContact Schneider Electric\u2019s Customer Care Center if you need assistance removing a patch.\r\nIf customers choose not to apply the remediation provided above, they should immediately follow the recommendations in the Mitigation section below to reduce the risk of exploit.",
          "product_ids": [
            "1"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://www.se.com/ww/en/download/document/EcoStruxureControlExpert_15SP1"
        },
        {
          "category": "mitigation",
          "details": "Customers should immediately apply the following mitigations to reduce the risk of exploit of the CVE-2020-7538, CVE-2020-28211, CVE-2020-28212, CVE-2020-28213\r\n\u2022 V15.0 of the EcoStruxure\u2122 Control Expert software includes a mitigation for these vulnerabilities, when applied with the steps outlined below, and is available for download here:\r\n\r\nhttps://www.se.com/ww/en/product-range-download/548-ecostruxure%E2%84%A2-control-expert/?parent-subcategory-id=3950\u0026filter=business-1-industrial-automation-and-control\u0026selected-node-id=12365959203#/software-firmware-tab\r\n\u2022 EcoStruxure\u2122 Process Expert 2020 R2 software, includes a mitigation, when applied with the steps outlined below, for these vulnerabilities and is available for download on the EcoStruxure Process Expert Support Portal (registration is needed):\r\nhttps://app.schneider-electric.com/ecostruxure-hybrid-dcs/\r\nAfter downloading the updated software listed above, the following steps are required to mitigate the vulnerability:\r\n1. Harden the Engineering Workstation running PLC Simulator\r\no Follow workstation, network and site-hardening guidelines in the Recommended Cybersecurity Best Practices guide available for download here.\r\no To help protect workstations running Schneider Electric and other user applications against execution of unauthorized applications and malicious files, Schneider Electric recommends using McAfee Application and Change Control software. Refer to the Cybsercurity Application Note available here.\r\n2. On V15.0 of the EcoStruxure\u2122 Control Expert and EcoStruxure\u2122 Process Expert 2020 R2 software, in the option dialog box of the PLC simulator, customers are requested to set the Listening IP Address to:\r\na. 127.0.0.1 (localhost), which will prevent remote network connections to the PLC simulator; or\r\nb. When deployed as a remote access system the IP Address should be configured to be the same as the system that will be running the PLC simulator.\r\nNote: Customers are informed that on EcoStruxure\u2122 Control Expert v15.0 and EcoStruxure\u2122 Process Expert 2020 R2 software and prior, the default listening IP address is: 0.0.0.0. The default setting exposes the PLC simulator to the vulnerabilities described in this bulletin. The default listening IP address is configurable from v15.0 and 2020 R2 and above.\r\nUpdate: Starting with EcoStruxure\u2122 Control Expert v15.0 SP1 and above the default listening IP address is: 127.0.0.1. The same setting is also recommended for the PLC Simulator and is documented in the PLC Simulator user manual available here\r\n\r\nCustomers should use appropriate patching methodologies when applying these patches to their systems. We strongly recommend the use of back-ups and evaluating the impact of these patches in a Test and Development environment or on an offline infrastructure. Contact Schneider Electric\u2019s Customer Care Center if you need assistance removing a patch\r\n\r\nIf customers choose not to apply the mitigations provided above or in case of older versions of EcoStruxure\u2122 Control Expert software, they should immediately apply the following mitigations to reduce the risk of exploit:\r\n1. Setup network segmentation and implement a firewall to block all unauthorized access to port 502/TCP\r\n2. Harden the Engineering Workstation running PLC Simulator for EcoStruxure\u2122 Control Expert and EcoStruxure\u2122 Process Expert\r\no Follow workstation, network and site-hardening guidelines in the Recommended Cybersecurity Best Practices guide available for download here.\r\nTo ensure you are informed of all updates, including details on affected products and remediation plans, subscribe to Schneider Electric\u2019s security notification service here: https://www.se.com/en/work/support/cybersecurity/security-notifications.jsp",
          "product_ids": [
            "1",
            "2",
            "3"
          ],
          "restart_required": {
            "category": "none"
          }
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "NONE",
            "baseScore": 7.4,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "HIGH",
            "scope": "CHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.0/AV:L/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:N",
            "version": "3.0"
          },
          "products": [
            "1",
            "2",
            "3"
          ]
        }
      ],
      "title": "CVE-2020-28211"
    }
  ]
}