{
  "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-11-279-02 JSON",
        "url": "https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/OT/white/2011/icsa-11-279-02.json"
      },
      {
        "category": "self",
        "summary": "ICS Advisory ICSA-11-279-02 - Web Version",
        "url": "https://www.cisa.gov/news-events/ics-advisories/icsa-11-279-02"
      },
      {
        "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": "CitectSCADA and Mitsubishi MX4 SCADA Batch Server Buffer Overflow",
    "tracking": {
      "current_release_date": "2025-06-09T19:51:06.585776Z",
      "generator": {
        "date": "2025-06-09T19:51:06.585713Z",
        "engine": {
          "name": "CISA CSAF Generator",
          "version": "1.0.0"
        }
      },
      "id": "ICSA-11-279-02",
      "initial_release_date": "2011-07-09T06:00:00.000000Z",
      "revision_history": [
        {
          "date": "2011-07-09T06:00:00.000000Z",
          "legacy_version": "Initial",
          "number": "1",
          "summary": "Initial Publication"
        },
        {
          "date": "2025-06-09T19:51:06.585776Z",
          "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=V7.10",
                "product": {
                  "name": "Schneider Electric Schneider Electric CitectSCADA  using the CitectSCADA Batch Server module: \u003c=V7.10",
                  "product_id": "CSAFPID-0001"
                }
              }
            ],
            "category": "product_name",
            "name": "Schneider Electric CitectSCADA  using the CitectSCADA Batch Server module"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c=V7.10",
                "product": {
                  "name": "Schneider Electric Mitsubishi MX4 SCADA using the MX4 SCADA Batch module: \u003c=V7.10",
                  "product_id": "CSAFPID-0002"
                }
              }
            ],
            "category": "product_name",
            "name": "Mitsubishi MX4 SCADA using the MX4 SCADA Batch module"
          }
        ],
        "category": "vendor",
        "name": "Schneider Electric"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2011-5163",
      "cwe": {
        "id": "CWE-119",
        "name": "Improper Restriction of Operations within the Bounds of a Memory Buffer"
      },
      "notes": [
        {
          "category": "summary",
          "text": "Buffer overflow in an unspecified third-party component in the Batch module for Schneider Electric CitectSCADA before 7.20 and Mitsubishi MX4 SCADA before 7.20 allows local users to execute arbitrary code via a long string in a login sequence.",
          "title": "Vulnerability Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "CSAFPID-0001",
          "CSAFPID-0002"
        ]
      },
      "remediations": [
        {
          "category": "mitigation",
          "details": "A notification about this vulnerability is available on the Schneider Electric website (http://www.citect.com/citectscada-batch).",
          "product_ids": [
            "CSAFPID-0001",
            "CSAFPID-0002"
          ],
          "url": "http://www.citect.com/citectscada-batch"
        },
        {
          "category": "mitigation",
          "details": "Schneider Electric has made mitigation recommendations to customers using affected products based on their implementation and use of the Batch product.",
          "product_ids": [
            "CSAFPID-0001",
            "CSAFPID-0002"
          ]
        },
        {
          "category": "mitigation",
          "details": "Schneider Electric advises these users to contact Schneider for details on how to migrate to the new Batch platform. The BatchUninstaller is available here: (http://www.citect.com/citectscada-batchuninstaller) .",
          "product_ids": [
            "CSAFPID-0001",
            "CSAFPID-0002"
          ],
          "url": "http://www.citect.com/citectscada-batchuninstaller"
        },
        {
          "category": "mitigation",
          "details": "Schneider Electric recommends these users run the CitectSCADA Batch Uninstaller to uninstall the Batch component, therefore eliminating the risk. The CitectSCADA Batch Uninstaller is available here: (http://www.citect.com/citectscada-batch) .",
          "product_ids": [
            "CSAFPID-0001",
            "CSAFPID-0002"
          ],
          "url": "http://www.citect.com/citectscada-batch"
        },
        {
          "category": "mitigation",
          "details": "Mitsubishi Electric Europe B.V. is contacting customers who have purchased an MX4 BATCH license and will work both with the customer and Schneider Electric to ensure they are not at risk from this vulnerability.",
          "product_ids": [
            "CSAFPID-0001",
            "CSAFPID-0002"
          ]
        },
        {
          "category": "mitigation",
          "details": "Mitsubishi Electric Europe B.V. has released a notification about this vulnerability on the Mitsubishi website (http://my.mitsubishi-automation.com/downloads_show.php?portal_id=1\u0026doc_type=safety\u0026scat=2\u0026sstr=MX4,SCADA).",
          "product_ids": [
            "CSAFPID-0001",
            "CSAFPID-0002"
          ],
          "url": "http://my.mitsubishi-automation.com/downloads_show.php?portal_id=1\u0026doc_type=safety\u0026scat=2\u0026sstr=MX4,SCADA"
        },
        {
          "category": "mitigation",
          "details": "Mitsubishi recommends that users who may have installed the MX4SCADA but are not using the MX4Batch engine (CitectSCADA Batch engine) to remove this module by using the uninstaller provided on their website: (http://www.mitsubishi-automation.com) \u003e Download \u003e Product Safety NoticeAlternatively",
          "product_ids": [
            "CSAFPID-0001",
            "CSAFPID-0002"
          ],
          "url": "http://www.mitsubishi-automation.com"
        },
        {
          "category": "mitigation",
          "details": "the uninstaller can be obtained from Schneider Electric\u2019s website (http://www.citect.com/citectscada-batch-uninstaller).",
          "product_ids": [
            "CSAFPID-0001",
            "CSAFPID-0002"
          ],
          "url": "http://www.citect.com/citectscada-batch-uninstaller"
        },
        {
          "category": "mitigation",
          "details": "MX4 Batch users should contact their local Mitsubishi Electric Europe B.V. representative to discuss upgrading to a new version of the Batch platform or alternatively moving to a non-PC-based batch system such as Mitsubishi Electric Europe B.V.\u2019s C Batch.",
          "product_ids": [
            "CSAFPID-0001",
            "CSAFPID-0002"
          ]
        },
        {
          "category": "mitigation",
          "details": "Mitsubishi Electric can be contacted at (mailto:fa-psn@mitsubishi-automation.com) for further assistance.",
          "product_ids": [
            "CSAFPID-0001",
            "CSAFPID-0002"
          ],
          "url": "mailto:fa-psn@mitsubishi-automation.com"
        }
      ],
      "scores": [
        {
          "cvss_v2": {
            "baseScore": 4.6,
            "vectorString": "AV:L/AC:L/Au:N/C:P/I:P/A:P",
            "version": "2.0"
          },
          "products": [
            "CSAFPID-0001",
            "CSAFPID-0002"
          ]
        }
      ]
    }
  ]
}