{
  "document": {
    "acknowledgments": [
      {
        "organization": "Hitachi ABB Power Grids",
        "summary": "reporting this vulnerability to CISA"
      }
    ],
    "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 may allow an authenticated user or integrated application to inject malicious data into the application that can then be executed in a victim \u0027s browser.",
        "title": "Risk evaluation"
      },
      {
        "category": "other",
        "text": "Energy",
        "title": "Critical infrastructure sectors"
      },
      {
        "category": "other",
        "text": "Worldwide",
        "title": "Countries/areas deployed"
      },
      {
        "category": "other",
        "text": "Switzerland",
        "title": "Company headquarters location"
      },
      {
        "category": "general",
        "text": "CISA recommends users take defensive measures to minimize the risk of exploitation of this vulnerability. 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 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-21-110-01 JSON",
        "url": "https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/OT/white/2021/icsa-21-110-01.json"
      },
      {
        "category": "self",
        "summary": "ICS Advisory ICSA-21-110-01 Web Version",
        "url": "https://www.cisa.gov/news-events/ics-advisories/icsa-21-110-01"
      },
      {
        "category": "external",
        "summary": "Recommended Practices",
        "url": "https://www.cisa.gov/news-events/ics-advisories/icsa-21-110-01"
      },
      {
        "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": "Hitachi ABB Power Grids Ellipse APM",
    "tracking": {
      "current_release_date": "2021-04-20T00:00:00.000000Z",
      "generator": {
        "engine": {
          "name": "CISA CSAF Generator",
          "version": "1.0.0"
        }
      },
      "id": "ICSA-21-110-01",
      "initial_release_date": "2021-04-20T00:00:00.000000Z",
      "revision_history": [
        {
          "date": "2021-04-20T00:00:00.000000Z",
          "legacy_version": "Initial",
          "number": "1",
          "summary": "ICSA-21-110-01 Hitachi ABB Power Grids Ellipse APM"
        }
      ],
      "status": "final",
      "version": "1"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c= 5.1.0.6",
                "product": {
                  "name": "Ellipse APM: Versions 5.1.0.6 and earlier",
                  "product_id": "CSAFPID-0001"
                }
              }
            ],
            "category": "product_name",
            "name": "Ellipse APM"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c= 5.2.0.3",
                "product": {
                  "name": "Ellipse APM: Versions 5.2.0.3 and earlier",
                  "product_id": "CSAFPID-0002"
                }
              }
            ],
            "category": "product_name",
            "name": "Ellipse APM"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c= 5.3.0.1",
                "product": {
                  "name": "Ellipse APM: Versions 5.3.0.1 and earlier",
                  "product_id": "CSAFPID-0003"
                }
              }
            ],
            "category": "product_name",
            "name": "Ellipse APM"
          }
        ],
        "category": "vendor",
        "name": "Hitachi Energy"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2021-27887",
      "cwe": {
        "id": "CWE-79",
        "name": "Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)"
      },
      "notes": [
        {
          "category": "summary",
          "text": "A stored XSS vulnerability in the main dashboard of Ellipse APM versions prior to 5.3.0.1, 5.2.0.3, and 5.1.0.6 allows an authenticated user or integrated application to inject malicious data into the application that can then be executed in a victim \u0027s browser.CVE-2021-27887 has been assigned to this vulnerability. A CVSS v3 base score of 6.3 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:N).",
          "title": "Vulnerability Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "CSAFPID-0001",
          "CSAFPID-0002",
          "CSAFPID-0003"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "web.nvd.nist.gov",
          "url": "http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2021-27887"
        },
        {
          "category": "external",
          "summary": "www.first.org",
          "url": "https://www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:N"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "Hitachi ABB Power Grids recommends users apply Ellipse APM Versions 5.3.0.2, 5.2.0.4, and 5.1.0.7 at the earliest convenience. Please see the advisory on the Hitachi ABB Power Grids website for more information.",
          "product_ids": [
            "CSAFPID-0001",
            "CSAFPID-0002",
            "CSAFPID-0003"
          ],
          "url": "https://search.abb.com/library/Download.aspx?DocumentID=9AKK107991A9700\u0026LanguageCode=en\u0026DocumentPartId=\u0026Action=Launch"
        },
        {
          "category": "mitigation",
          "details": "Ensure the \u201cAdministrator\u201d application role is only granted to fully trusted APM users who are trained not to import harmful data to APM (e.g., containing HTML or JavaScript).",
          "product_ids": [
            "CSAFPID-0001",
            "CSAFPID-0002",
            "CSAFPID-0003"
          ]
        },
        {
          "category": "mitigation",
          "details": "Limit all \u201cImport\u201d role API credentials and integrations to only those providing safe data. Introduce filters in the source applications to ensure data safety.",
          "product_ids": [
            "CSAFPID-0001",
            "CSAFPID-0002",
            "CSAFPID-0003"
          ]
        },
        {
          "category": "mitigation",
          "details": "Introduce a Web Application Firewall solution in front of the APM web interfaces with a capability of blocking XSS attack payloads in HTTP(S) requests, both plain REST (JSON/XML) as well as Excel files wrapped in REST (JSON).",
          "product_ids": [
            "CSAFPID-0001",
            "CSAFPID-0002",
            "CSAFPID-0003"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 6.3,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:N",
            "version": "3.0"
          },
          "products": [
            "CSAFPID-0001",
            "CSAFPID-0002",
            "CSAFPID-0003"
          ]
        }
      ]
    }
  ]
}