icsa-15-141-01a
Vulnerability from csaf_cisa
Published
2015-02-21 07:00
Modified
2025-06-06 21:41
Summary
Schneider Electric OFS Server Vulnerability (Update A)

Notes

Legal Notice
All information products included in https://us-cert.cisa.gov/ics are provided "as is" for informational purposes only. The Department of Homeland Security (DHS) does not provide any warranties of any kind regarding any information contained within. DHS does not endorse any commercial product or service, referenced in this product or otherwise. Further dissemination of this product is governed by the Traffic Light Protocol (TLP) marking in the header. For more information about TLP, see https://us-cert.cisa.gov/tlp/.
CISA Disclaimer
This CSAF advisory was extracted from unstructured data and may contain inaccuracies. If you notice any errors, please reach out to the designated contact at CISA CSAF: central@cisa.dhs.gov
Recommended Practices
CISA recommends users take defensive measures to minimize the risk of exploitation.
Recommended Practices
Minimize network exposure for all control system devices and/or systems, ensuring they are not accessible from the internet.
Recommended Practices
Locate control system networks and remote devices behind firewalls and isolating them from business networks.
Recommended Practices
When remote access is required, use more secure methods, such as Virtual Private Networks (VPNs). Recognize VPNs may have vulnerabilities, should be updated to the most recent version available, and are only as secure as the connected devices.
Recommended Practices
CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures.
Recommended Practices
CISA also provides a section for control systems security recommended practices on the ICS webpage on cisa.gov. Several CISA products detailing cyber defense best practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies.
Recommended Practices
CISA encourages organizations to implement recommended cybersecurity strategies for proactive defense of ICS assets.
Recommended Practices
Additional mitigation guidance and recommended practices are publicly available on the ICS webpage at cisa.gov in the technical information paper, ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation Strategies.
Recommended Practices
Organizations observing suspected malicious activity should follow established internal procedures and report findings to CISA for tracking and correlation against other incidents.
Recommended Practices
CISA also recommends users take the following measures to protect themselves from social engineering attacks: Do not click web links or open attachments in unsolicited email messages. Refer to Recognizing and Avoiding Email Scams for more information on avoiding email scams. Refer to Avoiding Social Engineering and Phishing Attacks for more information on social engineering attacks.


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{
  "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-15-141-01A JSON",
        "url": "https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/OT/white/2015/icsa-15-141-01a.json"
      },
      {
        "category": "self",
        "summary": "ICS Advisory ICSA-15-141-01A - Web Version",
        "url": "https://www.cisa.gov/news-events/ics-advisories/icsa-15-141-01a"
      },
      {
        "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": "Schneider Electric OFS Server Vulnerability (Update A)",
    "tracking": {
      "current_release_date": "2025-06-06T21:41:39.275086Z",
      "generator": {
        "date": "2025-06-06T21:41:39.275052Z",
        "engine": {
          "name": "CISA CSAF Generator",
          "version": "1.0.0"
        }
      },
      "id": "ICSA-15-141-01A",
      "initial_release_date": "2015-02-21T07:00:00.000000Z",
      "revision_history": [
        {
          "date": "2015-02-21T07:00:00.000000Z",
          "legacy_version": "Initial",
          "number": "1",
          "summary": "Initial Publication"
        },
        {
          "date": "2025-06-06T21:41:39.275086Z",
          "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=3.5",
                "product": {
                  "name": "Schneider Electric OPC Factory Server (OSF): \u003c=3.5",
                  "product_id": "CSAFPID-0001"
                }
              }
            ],
            "category": "product_name",
            "name": "OPC Factory Server (OSF)"
          },
          {
            "branches": [
              {
                "category": "product_version",
                "name": "v3.5_with__v7.40",
                "product": {
                  "name": "Schneider Electric OFS: v3.5_with__v7.40",
                  "product_id": "CSAFPID-0002"
                }
              }
            ],
            "category": "product_name",
            "name": "OFS"
          },
          {
            "branches": [
              {
                "category": "product_version",
                "name": "v7.30",
                "product": {
                  "name": "Schneider Electric OFS v3.5: v7.30",
                  "product_id": "CSAFPID-0003"
                }
              }
            ],
            "category": "product_name",
            "name": "OFS v3.5"
          },
          {
            "branches": [
              {
                "category": "product_version",
                "name": "v3.5",
                "product": {
                  "name": "Schneider Electric OFS: v3.5",
                  "product_id": "CSAFPID-0004"
                }
              }
            ],
            "category": "product_name",
            "name": "OFS"
          }
        ],
        "category": "vendor",
        "name": "Schneider Electric"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2015-1014",
      "cwe": {
        "id": "CWE-427",
        "name": "Uncontrolled Search Path Element"
      },
      "notes": [
        {
          "category": "summary",
          "text": "A successful exploit of these vulnerabilities requires the local user to load a crafted DLL file in the system directory on servers running Schneider Electric OFS v3.5 with version v7.40 of SCADA Expert Vijeo Citect/CitectSCADA, OFS v3.5 with version v7.30 of Vijeo Citect/CitectSCADA, and OFS v3.5 with version v7.20 of Vijeo Citect/CitectSCADA.. If the application attempts to open that file, the application could crash or allow the attacker to execute arbitrary code. Schneider Electric recommends vulnerable users upgrade the OFS to V3.5 and install the latest service pack (SP 6 or newer) for their associated version.",
          "title": "Vulnerability Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "CSAFPID-0001",
          "CSAFPID-0002",
          "CSAFPID-0003",
          "CSAFPID-0004"
        ]
      },
      "remediations": [
        {
          "category": "mitigation",
          "details": "Schneider Electric recommends vulnerable users upgrade the OFS to V3.5 and install the latest service pack (SP 6 or newer) for their associated version prior to installing any patches: OFS V3.50 \u2013 Service Pack 6 can be downloaded from the following URL: (http://www.schneider-electric.com/download/WW/EN/details/703716507-OPC-Factory-Server-V350---Service-Pack-6/?showAsIframe=true\u0026reference=OFS_3_50_2911-(SP6))",
          "product_ids": [
            "CSAFPID-0001",
            "CSAFPID-0002",
            "CSAFPID-0003",
            "CSAFPID-0004"
          ],
          "url": "http://www.schneider-electric.com/download/WW/EN/details/703716507-OPC-Factory-Server-V350---Service-Pack-6/?showAsIframe=true\u0026reference=OFS_3_50_2911-(SP6"
        },
        {
          "category": "mitigation",
          "details": "Schneider Electric\u2019s security notice\u2019s SEVD-2015-133-01(13-May-2015) and SEVD-2015-181-01 (V1.1 \u2013 30 June 2015) are available at the following location, respectively: (http://www.schneider-electric.com/ww/en/download/document/SEVD-2015-133-01)",
          "product_ids": [
            "CSAFPID-0001",
            "CSAFPID-0002",
            "CSAFPID-0003",
            "CSAFPID-0004"
          ],
          "url": "http://www.schneider-electric.com/ww/en/download/document/SEVD-2015-133-01"
        },
        {
          "category": "mitigation",
          "details": "(http://www.citect.schneider-electric.com/safety-and-security-notifications/36-security-notifications/8915-dll-hijacking-vulnerability)",
          "product_ids": [
            "CSAFPID-0001",
            "CSAFPID-0002",
            "CSAFPID-0003",
            "CSAFPID-0004"
          ],
          "url": "http://www.citect.schneider-electric.com/safety-and-security-notifications/36-security-notifications/8915-dll-hijacking-vulnerability"
        },
        {
          "category": "mitigation",
          "details": "Schneider Electric originally released advisory SEVD-2015-181-01 on its SCADA \u0026 MES Support secure Portal on May 29, 2015. This public web page release was delayed to allow users time to implement the patch recommended",
          "product_ids": [
            "CSAFPID-0001",
            "CSAFPID-0002",
            "CSAFPID-0003",
            "CSAFPID-0004"
          ]
        },
        {
          "category": "mitigation",
          "details": "SCADA Expert Vijeo Citect/CitectSCADA customers can download the latest Service Packs organized by version at the following location: (http://www.citect.schneider-electric.com/scada/vijeo-citect/downloads-updates/service-packs)",
          "product_ids": [
            "CSAFPID-0001",
            "CSAFPID-0002",
            "CSAFPID-0003",
            "CSAFPID-0004"
          ],
          "url": "http://www.citect.schneider-electric.com/scada/vijeo-citect/downloads-updates/service-packs"
        },
        {
          "category": "mitigation",
          "details": "Additional Schneider Electric Safety and Security Notification information is located at: (http://www.citect.schneider-electric.com/safety-and-security-notifications).",
          "product_ids": [
            "CSAFPID-0001",
            "CSAFPID-0002",
            "CSAFPID-0003",
            "CSAFPID-0004"
          ],
          "url": "http://www.citect.schneider-electric.com/safety-and-security-notifications"
        }
      ],
      "scores": [
        {
          "cvss_v2": {
            "baseScore": 6.6,
            "vectorString": "AV:L/AC:M/Au:S/C:C/I:C/A:C",
            "version": "2.0"
          },
          "products": [
            "CSAFPID-0001",
            "CSAFPID-0002",
            "CSAFPID-0003",
            "CSAFPID-0004"
          ]
        }
      ]
    }
  ]
}


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