{
  "document": {
    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "publisher": {
      "category": "vendor",
      "name": "Schneider Electric CPCERT",
      "namespace": "https://www.se.com/ww/en/work/support/cybersecurity/security-notifications.jsp",
      "contact_details": "cpcert@se.com"
    },
    "title": "Modicon PAC Controllers",
    "tracking": {
      "current_release_date": "2024-08-13T00:00:00.000Z",
      "id": "SEVD-2022-221-02",
      "initial_release_date": "2022-08-09T08:15:40.000Z",
      "status": "final",
      "version": "5.0.0",
      "generator": {
        "date": "2024-08-13T00:00:00.000Z",
        "engine": {
          "version": "1.2",
          "name": "Schneider Electric CSAF Generator"
        }
      },
      "revision_history": [
        {
          "date": "2022-08-09T08:15:40.000Z",
          "number": "1.0.0",
          "summary": "Original Release"
        },
        {
          "date": "2022-09-13T06:30:00.000Z",
          "number": "2.0.0",
          "summary": "A remediation is available for Modicon MC80 (BMKC80) Controller"
        },
        {
          "date": "2022-12-13T06:30:00.000Z",
          "number": "3.0.0",
          "summary": "The Modicon M580 SV4.02 firmware has been retracted for quality issues and is no longer available for download. For specific questions or support, Customers are requested to contact Schneider Electric’s Customer Care Center.Please refer to the mitigations recommended in the section below."
        },
        {
          "date": "2023-03-14T06:30:00.000Z",
          "number": "4.0.0",
          "summary": "A remediation is available for Modicon Momentum Unity M1E processor and for the Modicon M580 CPU (page 2)."
        },
        {
          "date": "2024-08-13T00:00:00.000Z",
          "number": "5.0.0",
          "summary": "A remediation is available for the Modicon M580 CPU Safety (page 2)."
        }
      ]
    },
    "references": [
      {
        "summary": "Modicon PAC Controllers - SEVD-2022-221-02 PDF Version",
        "url": "https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2022-221-02&p_enDocType=Security+and+Safety+Notice&p_File_Name=SEVD-2022-221-02_Modicon_Controllers_Security_Notification.pdf",
        "category": "self"
      },
      {
        "summary": "Modicon PAC Controllers - SEVD-2022-221-02 CSAF Version",
        "url": "https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2022-221-02&p_enDocType=Security+and+Safety+Notice&p_File_Name=sevd-2022-221-02.json",
        "category": "self"
      },
      {
        "summary": "Recommended Cybersecurity Best Practices",
        "url": "https://www.se.com/us/en/download/document/7EN52-0390/",
        "category": "external"
      }
    ],
    "lang": "en-US",
    "distribution": {
      "text": "Public",
      "tlp": {
        "label": "WHITE"
      }
    },
    "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 “Program” 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’s products, visit the company’s 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 “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",
        "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 a vulnerability in its Modicon PAC Controllers.\nModicon PLCs (Programmable Logic Controllers) and PACs (Programmable Automation Controllers) control and monitor industrial operations in a sustainable, flexible, efficient, and protected way.\nFailure to apply the remediations provided below may risk memory related errors, which could result in Denial of Service of the controller when using Modbus TCP.\nSeptember 2022 Update: A remediation is available for Modicon MC80 (BMKC80) Controller\nMarch 2023 Update: A remediation is available for Modicon Momentum Unity M1E processor and for the Modicon M580 CPU",
        "title": "Overview"
      }
    ]
  },
  "product_tree": {
    "branches": [
      {
        "category": "vendor",
        "name": "Schneider Electric",
        "branches": [
          {
            "category": "product_name",
            "name": "Modicon M340 CPU",
            "branches": [
              {
                "category": "product_version_range",
                "name": "<=3.40",
                "product": {
                  "product_id": "1",
                  "name": "Schneider Electric Modicon M340 CPU <=3.40",
                  "product_identification_helper": {
                    "model_numbers": [
                      "BMXP34*"
                    ]
                  }
                }
              }
            ]
          },
          {
            "category": "product_name",
            "name": "Modicon M340 CPU",
            "branches": [
              {
                "category": "product_version",
                "name": "3.50",
                "product": {
                  "product_id": "2",
                  "name": "Schneider Electric Modicon M340 CPU 3.50",
                  "product_identification_helper": {
                    "model_numbers": [
                      "BMXP34*"
                    ]
                  }
                }
              }
            ]
          },
          {
            "category": "product_name",
            "name": "Modicon M580 CPU",
            "branches": [
              {
                "category": "product_version_range",
                "name": "<=3.22",
                "product": {
                  "product_id": "3",
                  "name": "Schneider Electric Modicon M580 CPU <=3.22",
                  "product_identification_helper": {
                    "model_numbers": [
                      "BMEP*",
                      "BMEH*"
                    ]
                  }
                }
              }
            ]
          },
          {
            "category": "product_name",
            "name": "Modicon M580 CPU",
            "branches": [
              {
                "category": "product_version",
                "name": "4.01",
                "product": {
                  "product_id": "4",
                  "name": "Schneider Electric Modicon M580 CPU 4.01",
                  "product_identification_helper": {
                    "model_numbers": [
                      "BMEP*",
                      "BMEH*"
                    ]
                  }
                }
              }
            ]
          },
          {
            "category": "product_name",
            "name": "Modicon MC80",
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:all/*",
                "product": {
                  "product_id": "5",
                  "name": "Schneider Electric Modicon MC80 all versions",
                  "product_identification_helper": {
                    "model_numbers": [
                      "BMKC80"
                    ]
                  }
                }
              }
            ]
          },
          {
            "category": "product_name",
            "name": "Modicon Momentum MDI CPU",
            "branches": [
              {
                "category": "product_version_range",
                "name": "<=2.5",
                "product": {
                  "product_id": "6",
                  "name": "Schneider Electric Modicon Momentum MDI CPU <=2.5",
                  "product_identification_helper": {
                    "model_numbers": [
                      "171CBU*"
                    ]
                  }
                }
              }
            ]
          },
          {
            "category": "product_name",
            "name": "Legacy Modicon Quantum /Premium",
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:all/*",
                "product": {
                  "product_id": "7",
                  "name": "Schneider Electric Legacy Modicon Quantum /Premium all versions"
                }
              }
            ]
          },
          {
            "category": "product_name",
            "name": "Modicon MC80",
            "branches": [
              {
                "category": "product_version",
                "name": "1.8",
                "product": {
                  "product_id": "8",
                  "name": "Schneider Electric Modicon MC80 1.8",
                  "product_identification_helper": {
                    "model_numbers": [
                      "BMKC80"
                    ]
                  }
                }
              }
            ]
          },
          {
            "category": "product_name",
            "name": "Modicon M580 CPU Safety",
            "branches": [
              {
                "category": "product_version_range",
                "name": "<SV4.21",
                "product": {
                  "product_id": "9",
                  "name": "Schneider Electric Modicon M580 CPU Safety (part numbers BMEP58*S and BMEH58*S)Versions prior to SV4.21",
                  "product_identification_helper": {
                    "model_numbers": [
                      "BMEP58*S",
                      "BMEH58*S"
                    ]
                  }
                }
              }
            ]
          },
          {
            "category": "product_name",
            "name": "Modicon M580 CPU",
            "branches": [
              {
                "category": "product_version",
                "name": "4.10",
                "product": {
                  "product_id": "10",
                  "name": "Schneider Electric Modicon M580 CPU 4.10",
                  "product_identification_helper": {
                    "model_numbers": [
                      "BMEP*",
                      "BMEH*"
                    ]
                  }
                }
              }
            ]
          },
          {
            "category": "product_name",
            "name": "Modicon Momentum MDI CPU",
            "branches": [
              {
                "category": "product_version",
                "name": "2.6",
                "product": {
                  "product_id": "11",
                  "name": "Schneider Electric Modicon Momentum MDI CPU 2.6",
                  "product_identification_helper": {
                    "model_numbers": [
                      "171CBU*"
                    ]
                  }
                }
              }
            ]
          },
          {
            "category": "product_name",
            "name": "Modicon M580 CPU Safety",
            "branches": [
              {
                "category": "product_version",
                "name": "SV4.21",
                "product": {
                  "product_id": "12",
                  "name": "Schneider Electric Modicon M580 CPU Safety (part numbers BMEP58*S and BMEH58*S)Version SV4.21",
                  "product_identification_helper": {
                    "model_numbers": [
                      "BMEP58*S",
                      "BMEH58*S"
                    ]
                  }
                }
              }
            ]
          }
        ]
      }
    ]
  },
  "vulnerabilities": [
    {
      "title": "CVE-2022-37301",
      "notes": [
        {
          "category": "description",
          "text": "A CWE-191: Integer Underflow (Wrap or Wraparound) vulnerability exists that could cause a denial of service of the controller due to memory access violations when using the Modbus TCP protocol.",
          "title": "CVE Description"
        }
      ],
      "cve": "CVE-2022-37301",
      "cwe": {
        "id": "CWE-191",
        "name": "Integer Underflow (Wrap or Wraparound)"
      },
      "acknowledgments": [
        {
          "names": [
            "Li WEI"
          ],
          "organization": "BooleanTech"
        }
      ],
      "product_status": {
        "known_affected": [
          "1",
          "3",
          "5",
          "6",
          "7",
          "9"
        ],
        "fixed": [
          "2",
          "8",
          "10",
          "11",
          "12"
        ]
      },
      "scores": [
        {
          "products": [
            "1",
            "3",
            "5",
            "6",
            "7",
            "9"
          ],
          "cvss_v3": {
            "version": "3.1",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "attackVector": "NETWORK",
            "attackComplexity": "LOW",
            "privilegesRequired": "NONE",
            "userInteraction": "NONE",
            "scope": "UNCHANGED",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "availabilityImpact": "HIGH"
          }
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "Firmware V3.50 of Modicon includes a fix for this vulnerability and is available for download here:\nhttps://www.se.com/ww/en/download/document/BMXP34xxxxx_SV_03.50/",
          "product_ids": [
            "1"
          ],
          "url": "https://www.se.com/ww/en/download/document/BMXP34xxxxx_SV_03.50/",
          "restart_required": {
            "category": "none"
          }
        },
        {
          "category": "vendor_fix",
          "details": "Firmware SV4.10 includes a fix for this vulnerability and is available for download here: https://www.se.com/ww/en/download/document/BMEx58x0x0_SV04.10/",
          "product_ids": [
            "3"
          ],
          "url": "https://www.se.com/ww/en/download/document/BMEx58x0x0_SV04.10/",
          "restart_required": {
            "category": "none"
          }
        },
        {
          "category": "vendor_fix",
          "details": "Firmware SV2.6 includes a fix for this vulnerability and is available for download here: https://www.se.com/ww/en/download/document/Momentum_FW_update/",
          "product_ids": [
            "6"
          ],
          "url": "https://www.se.com/ww/en/download/document/Momentum_FW_update/",
          "restart_required": {
            "category": "none"
          }
        },
        {
          "category": "vendor_fix",
          "details": "Firmware SV4.21 includes a fix for these vulnerabilities and is \r\navailable for download here: \r\nhttps://www.se.com/ww/en/product-range/62098-modicon-m580-epac-controller/#software-and-firmware\r\n Important: customer needs to use version of EcoStruxure™ \r\nControl Expert V16.0 HF001 minimum to connect with the latest \r\nversion of M580 CPU Safety. The software is available for \r\ndownload here: tps://www.se.com/ww/en/product-range/548-ecostruxurecontrol-expert-unity-pro/#software-and-firmware",
          "product_ids": [
            "9"
          ],
          "url": "https://www.se.com/ww/en/product-range/62098-modicon-m580-epac-controller/#software-and-firmware",
          "restart_required": {
            "category": "none"
          }
        },
        {
          "category": "no_fix_planned",
          "details": "Schneider Electric’s Modicon Quantum controllers have reached their end of life and are no longer commercially available. They have been replaced by the Modicon M580 ePAC controller, our current product offer.\r\nCustomers should strongly consider migrating to the Modicon M580 ePAC.\r\nPlease contact your local Schneider Electric technical support for more information.",
          "product_ids": [
            "7"
          ],
          "restart_required": {
            "category": "none"
          }
        },
        {
          "category": "mitigation",
          "details": "• Setup an application password in the project properties\r\n• Setup network segmentation and implement a firewall to block all unauthorized access to port 502/TCP\r\n• Configure the Access Control List following the recommendations of the user manuals:\r\no “Modicon M580, Hardware, Reference Manual” https://www.se.com/ww/en/download/document/EIO0000001578/\r\no “Modicon M340 for Ethernet Communications Modules and Processors User Manual” in chapter “Messaging Configuration Parameters”: https://www.se.com/ww/en/download/document/31007131K01000/\r\no “Modicon MC80 Programmable Logic Controller (PLC) manual” in the chapter “Access Control List (ACL)” https://download.schneider-electric.com/files?p_enDocType=User+guide&p_File_Name=EIO0000002071.02.pdf&p_Doc_Ref=EIO0000002071\r\no “Momentum for EcoStruxure™ Control Expert - 171 CBU 78090, 171 CBU 98090, 171 CBU 98091 Processors” manual in the chapter “Modbus Messaging and Access Control” https://download.schneider-electric.com/files?p_enDocType=User+guide&p_File_Name=HRB44124.08.pdf&p_Doc_Ref=HRB44124\r\n• Setup a secure communication according to the following guideline “Modicon Controllers Platform Cyber Security Reference Manual,” in chapter “Setup secured communications”: https://www.se.com/ww/en/download/document/EIO0000001999/\r\n• Use a BMENOC module and follow the instructions to configure IPSEC feature as described in the guideline “Modicon M580 - BMENOC03.1 Ethernet Communications Schneider Electric Security Notification Module, Installation and Configuration Guide” in the chapter “Configuring IPSEC communications”:\r\nhttps://www.se.com/ww/en/download/document/HRB62665/\r\n• Ensure the M580 CPU is running with the memory protection activated by configuring the input bit to a physical input, for more details refer to the following guideline “Modicon Controllers Platform Cyber Security Reference Manual”, “CPU Memory Protection section”:\r\nhttps://www.schneider-electric.com/en/download/document/EIO0000001999/\r\no NOTE: The CPU memory protection cannot be configured with Hot Standby CPUs. In such cases, use IPsec encrypted communication• Setup a VPN between the Modicon PLC controller and the engineering workstation containing EcoStruxure Control Expert or Process Expert. Note: this functionality may be provided by an external IPSEC compatible firewall located close to the controller.\r\nTo further reduce the attack surface on Modicon M580 CPU Safety:\r\n• Ensure the CPU is running in Safety mode and maintenance input is configured to maintain this Safety mode during operation – refer to the document Modicon M580 - Safety System Planning Guide - in the chapter “Operating Mode Transitions”:\r\nhttps://www.se.com/ww/en/download/document/QGH60283/\r\n To ensure you are informed of all updates, including details on affected products and remediation plans, subscribe to Schneider Electric’s security notification service here:\r\nhttps://www.se.com/en/work/support/cybersecurity/security-notifications.jsp\r\n",
          "product_ids": [
            "1",
            "7",
            "6",
            "9"
          ],
          "url": "https://www.se.com/ww/en/download/document/EIO0000001999/",
          "restart_required": {
            "category": "none"
          }
        },
        {
          "category": "mitigation",
          "details": "If customers choose not to upgrade, they should immediately apply the following mitigations to reduce the risk of exploit:\n• Setup network segmentation and implement a firewall to block all unauthorized access to port 502/TCP\n• Configure the Access Control List feature as mentioned in “Quantum using EcoStruxure™ Control Expert - TCP/IP Configuration, User Manual” in chapter “Software Settings for Ethernet Communication / Messaging / Quantum NOE Ethernet Messaging Configuration”: https://www.se.com/ww/en/download/document/33002467K01000/\n• Configure the Access Control List following the recommendations of the user manual “Premium and Atrium using EcoStruxure™ Control Expert - Ethernet Network Modules, User Manual” in chapters “Connection configuration parameters / TCP/IP Services Configuration Parameters / Connection Configuration Parameters”: https://www.se.com/ww/en/download/document/35006192K01000/",
          "product_ids": [
            "7"
          ],
          "url": "https://www.se.com/ww/en/download/document/33002467K01000/",
          "restart_required": {
            "category": "none"
          }
        },
        {
          "category": "vendor_fix",
          "details": "Firmware V1.8 includes a fix for this vulnerability and is available for download here:\nhttps://www.se.com/ww/en/product-range/62396-modicon-mc80/#software-and-firmware",
          "product_ids": [
            "5"
          ],
          "url": "https://www.se.com/ww/en/product-range/62396-modicon-mc80/#software-and-firmware"
        }
      ]
    }
  ]
}