ICSA-20-308-01
Vulnerability from csaf_cisa
Published
2020-11-03 00:00
Modified
2020-12-15 00:00
Summary
WAGO Series 750-88x and 750-352 (Update A)

Notes

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
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/.
Risk evaluation
Successful exploitation of this vulnerability could allow an attacker to crash the device being accessed using a denial-of-service attack.
Critical infrastructure sectors
Commercial Facilities, Critical Manufacturing, Energy, Transportation Systems
Countries/areas deployed
Worldwide
Company headquarters location
United States, Germany, Switzerland, Poland, China, India
Recommended Practices
CISA recommends users take defensive measures to minimize the risk of exploitation of this vulnerability. Specifically, users should:
Recommended Practices
CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures. CISA also provides a section for control systems security recommended practices on the ICS webpage onus-cert.cisa.gov. Several recommended practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies.
Recommended Practices
Additional mitigation guidance and recommended practices are publicly available on the ICS webpage on us-cert.cisa.gov in the Technical Information Paper, ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation Strategies. Organizations observing any suspected malicious activity should follow their established internal procedures and report their findings to CISA for tracking and correlation against other incidents.
Exploitability
No known public exploits specifically target this vulnerability.


To clipboard 

{
  "document": {
    "acknowledgments": [
      {
        "names": [
          "William Knowles"
        ],
        "organization": "Applied Risk",
        "summary": "reporting this vulnerability to WAGO"
      },
      {
        "organization": "CERT@VDE",
        "summary": "reporting this vulnerability to WAGO"
      }
    ],
    "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": "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": "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": "summary",
        "text": "Successful exploitation of this vulnerability could allow an attacker to crash the device being accessed using a denial-of-service attack.",
        "title": "Risk evaluation"
      },
      {
        "category": "other",
        "text": "Commercial Facilities, Critical Manufacturing, Energy, Transportation Systems",
        "title": "Critical infrastructure sectors"
      },
      {
        "category": "other",
        "text": "Worldwide",
        "title": "Countries/areas deployed"
      },
      {
        "category": "other",
        "text": "United States, Germany, Switzerland, Poland, China, India",
        "title": "Company headquarters location"
      },
      {
        "category": "general",
        "text": "CISA recommends users take defensive measures to minimize the risk of exploitation of this vulnerability. Specifically, users should:",
        "title": "Recommended Practices"
      },
      {
        "category": "general",
        "text": "CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures.\nCISA also provides a section for control systems security recommended practices on the ICS webpage onus-cert.cisa.gov. Several recommended practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies.",
        "title": "Recommended Practices"
      },
      {
        "category": "general",
        "text": "Additional mitigation guidance and recommended practices are publicly available on the ICS webpage on us-cert.cisa.gov in the Technical Information Paper, ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation Strategies.\nOrganizations observing any suspected malicious activity should follow their established internal procedures and report their findings to CISA for tracking and correlation against other incidents.",
        "title": "Recommended Practices"
      },
      {
        "category": "other",
        "text": "No known public exploits specifically target this vulnerability.",
        "title": "Exploitability"
      }
    ],
    "publisher": {
      "category": "coordinator",
      "contact_details": "Email: CISAservicedesk@cisa.dhs.gov;\n Toll Free: 1-888-282-0870",
      "name": "CISA",
      "namespace": "https://www.cisa.gov/"
    },
    "references": [
      {
        "category": "self",
        "summary": "ICS Advisory ICSA-20-308-01 JSON",
        "url": "https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/OT/white/2020/icsa-20-308-01.json"
      },
      {
        "category": "self",
        "summary": "ICS Advisory ICSA-20-308-01 Web Version",
        "url": "https://www.cisa.gov/news-events/ics-advisories/icsa-20-308-01"
      },
      {
        "category": "external",
        "summary": "Recommended Practices",
        "url": "https://www.cisa.gov/news-events/ics-advisories/icsa-20-308-01"
      },
      {
        "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://us-cert.cisa.gov/ics/tips/ICS-TIP-12-146-01B"
      }
    ],
    "title": "WAGO Series 750-88x and 750-352 (Update A)",
    "tracking": {
      "current_release_date": "2020-12-15T00:00:00.000000Z",
      "generator": {
        "engine": {
          "name": "CISA CSAF Generator",
          "version": "1.0.0"
        }
      },
      "id": "ICSA-20-308-01",
      "initial_release_date": "2020-11-03T00:00:00.000000Z",
      "revision_history": [
        {
          "date": "2020-11-03T00:00:00.000000Z",
          "legacy_version": "Initial",
          "number": "1",
          "summary": "ICSA-20-308-01 WAGO Series 750-88x and 750-352"
        },
        {
          "date": "2020-12-15T00:00:00.000000Z",
          "legacy_version": "A",
          "number": "2",
          "summary": "ICSA-20-308-01 WAGO Series 750-88x and 750-352 (Update A)"
        }
      ],
      "status": "final",
      "version": "2"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c FW11",
                "product": {
                  "name": "750-352: versions prior to FW11",
                  "product_id": "CSAFPID-0001"
                }
              }
            ],
            "category": "product_name",
            "name": "750-352"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c FW11",
                "product": {
                  "name": "750-885: versions prior to FW11",
                  "product_id": "CSAFPID-0002"
                }
              }
            ],
            "category": "product_name",
            "name": "750-885"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c FW11",
                "product": {
                  "name": "750-882: versions prior to FW11",
                  "product_id": "CSAFPID-0003"
                }
              }
            ],
            "category": "product_name",
            "name": "750-882"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c FW11",
                "product": {
                  "name": "750-881: versions prior to FW11",
                  "product_id": "CSAFPID-0004"
                }
              }
            ],
            "category": "product_name",
            "name": "750-881"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c FW11",
                "product": {
                  "name": "750-880/xxx-xxx: versions prior to FW11",
                  "product_id": "CSAFPID-0005"
                }
              }
            ],
            "category": "product_name",
            "name": "750-880/xxx-xxx"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c FW11",
                "product": {
                  "name": "750-831/xxx-xxx: versions prior to FW11",
                  "product_id": "CSAFPID-0006"
                }
              }
            ],
            "category": "product_name",
            "name": "750-831/xxx-xxx"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c FW11",
                "product": {
                  "name": "750-889: versions prior to FW11",
                  "product_id": "CSAFPID-0007"
                }
              }
            ],
            "category": "product_name",
            "name": "750-889"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c FW11",
                "product": {
                  "name": "750-331/xxx-xxx: versions prior to FW11",
                  "product_id": "CSAFPID-0008"
                }
              }
            ],
            "category": "product_name",
            "name": "750-331/xxx-xxx"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c FW11",
                "product": {
                  "name": "750-852: versions prior to FW11",
                  "product_id": "CSAFPID-0009"
                }
              }
            ],
            "category": "product_name",
            "name": "750-852"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c FW11",
                "product": {
                  "name": "750-829: versions prior to FW11",
                  "product_id": "CSAFPID-00010"
                }
              }
            ],
            "category": "product_name",
            "name": "750-829"
          }
        ],
        "category": "vendor",
        "name": "WAGO"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2020-12516",
      "cwe": {
        "id": "CWE-400",
        "name": "Uncontrolled Resource Consumption"
      },
      "notes": [
        {
          "category": "summary",
          "text": "An attacker can execute a denial-of-service attack by sending a series of maliciously constructed packets to HTTP(S) Ports 80/443, which may cause the device to crash.CVE-2020-12516 has been assigned to this vulnerability. A CVSS v3 base score of 7.5 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).",
          "title": "Vulnerability Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "CSAFPID-0001",
          "CSAFPID-0002",
          "CSAFPID-0003",
          "CSAFPID-0004",
          "CSAFPID-0005",
          "CSAFPID-0006",
          "CSAFPID-0007",
          "CSAFPID-0008",
          "CSAFPID-0009",
          "CSAFPID-00010"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "web.nvd.nist.gov",
          "url": "http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2020-12516"
        },
        {
          "category": "external",
          "summary": "www.first.org",
          "url": "https://www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
        }
      ],
      "remediations": [
        {
          "category": "mitigation",
          "details": "WAGO recommends updating to the latest firmware, Version FW14",
          "product_ids": [
            "CSAFPID-0001",
            "CSAFPID-0002",
            "CSAFPID-0003",
            "CSAFPID-0004",
            "CSAFPID-0005",
            "CSAFPID-0006",
            "CSAFPID-0007",
            "CSAFPID-0008",
            "CSAFPID-0009",
            "CSAFPID-00010"
          ],
          "url": "https://www.wago.com/us/requestDownload?downloadFile=FWMedia_58_750-881"
        },
        {
          "category": "mitigation",
          "details": "Restrict network access to the device.",
          "product_ids": [
            "CSAFPID-0001",
            "CSAFPID-0002",
            "CSAFPID-0003",
            "CSAFPID-0004",
            "CSAFPID-0005",
            "CSAFPID-0006",
            "CSAFPID-0007",
            "CSAFPID-0008",
            "CSAFPID-0009",
            "CSAFPID-00010"
          ]
        },
        {
          "category": "mitigation",
          "details": "Do not directly connect the device to the Internet.",
          "product_ids": [
            "CSAFPID-0001",
            "CSAFPID-0002",
            "CSAFPID-0003",
            "CSAFPID-0004",
            "CSAFPID-0005",
            "CSAFPID-0006",
            "CSAFPID-0007",
            "CSAFPID-0008",
            "CSAFPID-0009",
            "CSAFPID-00010"
          ]
        },
        {
          "category": "mitigation",
          "details": "Disable unused TCP/UDP ports.",
          "product_ids": [
            "CSAFPID-0001",
            "CSAFPID-0002",
            "CSAFPID-0003",
            "CSAFPID-0004",
            "CSAFPID-0005",
            "CSAFPID-0006",
            "CSAFPID-0007",
            "CSAFPID-0008",
            "CSAFPID-0009",
            "CSAFPID-00010"
          ]
        },
        {
          "category": "mitigation",
          "details": "CERT@VDE has published an advisory regarding this vulnerability.",
          "product_ids": [
            "CSAFPID-0001",
            "CSAFPID-0002",
            "CSAFPID-0003",
            "CSAFPID-0004",
            "CSAFPID-0005",
            "CSAFPID-0006",
            "CSAFPID-0007",
            "CSAFPID-0008",
            "CSAFPID-0009",
            "CSAFPID-00010"
          ],
          "url": "https://cert.vde.com/en-us/advisories/vde-2020-042"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.0"
          },
          "products": [
            "CSAFPID-0001",
            "CSAFPID-0002",
            "CSAFPID-0003",
            "CSAFPID-0004",
            "CSAFPID-0005",
            "CSAFPID-0006",
            "CSAFPID-0007",
            "CSAFPID-0008",
            "CSAFPID-0009",
            "CSAFPID-00010"
          ]
        }
      ]
    }
  ]
}


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