{
  "document": {
    "acknowledgments": [
      {
        "names": [
          "Sebastian Krause",
          "Toralf Gimpel"
        ],
        "organization": "GAI NetConsult GmbH",
        "summary": "reporting this vulnerability to Hirschmann"
      }
    ],
    "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 unauthenticated, remote attacker to overflow a buffer and fully compromise the device.",
        "title": "Risk evaluation"
      },
      {
        "category": "other",
        "text": "Information Technology",
        "title": "Critical infrastructure sectors"
      },
      {
        "category": "other",
        "text": "Worldwide",
        "title": "Countries/areas deployed"
      },
      {
        "category": "other",
        "text": "United States",
        "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.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.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-20-091-01 JSON",
        "url": "https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/OT/white/2020/icsa-20-091-01.json"
      },
      {
        "category": "self",
        "summary": "ICS Advisory ICSA-20-091-01 Web Version",
        "url": "https://www.cisa.gov/news-events/ics-advisories/icsa-20-091-01"
      },
      {
        "category": "external",
        "summary": "Recommended Practices",
        "url": "https://www.us-cert.gov/ics/alerts/ICS-ALERT-10-301-01"
      },
      {
        "category": "external",
        "summary": "Recommended Practices",
        "url": "https://www.us-cert.gov/sites/default/files/recommended_practices/NCCIC_ICS-CERT_Defense_in_Depth_2016_S508C.pdf"
      },
      {
        "category": "external",
        "summary": "Recommended Practices",
        "url": "https://www.us-cert.gov/ics/tips/ICS-TIP-12-146-01B"
      }
    ],
    "title": "Hirschmann Automation and Control HiOS and HiSecOS Products",
    "tracking": {
      "current_release_date": "2020-03-31T00:00:00.000000Z",
      "generator": {
        "engine": {
          "name": "CISA CSAF Generator",
          "version": "1.0.0"
        }
      },
      "id": "ICSA-20-091-01",
      "initial_release_date": "2020-03-31T00:00:00.000000Z",
      "revision_history": [
        {
          "date": "2020-03-31T00:00:00.000000Z",
          "legacy_version": "Initial",
          "number": "1",
          "summary": "ICSA-20-091-01 Hirschmann Automation and Control HiOS and HiSecOS Products"
        }
      ],
      "status": "final",
      "version": "1"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version",
                "name": "03.2.00",
                "product": {
                  "name": "EAGLE20/30: HiSecOS Version 03.2.00",
                  "product_id": "CSAFPID-0001"
                }
              }
            ],
            "category": "product_name",
            "name": "EAGLE20/30"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c= HiOS 07.0.02",
                "product": {
                  "name": "RSP RSPE RSPS RSPL MSP EES EES EESX GRS OS RED: HiOS Version 07.0.02 and lower",
                  "product_id": "CSAFPID-0002"
                }
              }
            ],
            "category": "product_name",
            "name": "RSP RSPE RSPS RSPL MSP EES EES EESX GRS OS RED"
          }
        ],
        "category": "vendor",
        "name": "Hirschmann Automation and Control GmbH, Belden Inc."
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2020-6994",
      "cwe": {
        "id": "CWE-120",
        "name": "Buffer Copy without Checking Size of Input (\u0027Classic Buffer Overflow\u0027)"
      },
      "notes": [
        {
          "category": "summary",
          "text": "The vulnerability is due to improper parsing of URL arguments. An attacker could exploit this vulnerability by specially crafting HTTP requests to overflow an internal buffer.CVE-2020-6994 has been assigned to this vulnerability. A CVSS v3 base score of 9.8 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).",
          "title": "Vulnerability Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "CSAFPID-0001",
          "CSAFPID-0002"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "web.nvd.nist.gov",
          "url": "http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2020-6994"
        },
        {
          "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:H/I:H/A:H"
        }
      ],
      "remediations": [
        {
          "category": "mitigation",
          "details": "Hirschmann recommends updating HiOS products to Version 07.0.03 or higher and HiSecOS products to Version 03.3.00 or higher.",
          "product_ids": [
            "CSAFPID-0001",
            "CSAFPID-0002"
          ]
        },
        {
          "category": "mitigation",
          "details": "Hirschmann also recommends, as a workaround, users either use the \u201cIP Access Restriction\u201d feature to restrict HTTP and HTTPS to trusted IP addresses, or disable the HTTP and HTTPS server.",
          "product_ids": [
            "CSAFPID-0001",
            "CSAFPID-0002"
          ]
        },
        {
          "category": "mitigation",
          "details": "For more information regarding this vulnerability and the associated mitigations, please see Belden security bulletin number BSECV-2020-01.",
          "product_ids": [
            "CSAFPID-0001",
            "CSAFPID-0002"
          ],
          "url": "https://www.belden.com/hubfs/support/security/bulletins/Belden_Security_Bulletin_BSECV-2020-01_1v2_FINAL.pdf"
        },
        {
          "category": "mitigation",
          "details": "For additional resources, please go to https://www.belden.com/security.",
          "product_ids": [
            "CSAFPID-0001",
            "CSAFPID-0002"
          ],
          "url": "https://www.belden.com/security"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 9.8,
            "baseSeverity": "CRITICAL",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.0"
          },
          "products": [
            "CSAFPID-0001",
            "CSAFPID-0002"
          ]
        }
      ]
    }
  ]
}