icsa-21-257-17
Vulnerability from csaf_cisa
Published
2021-09-14 00:00
Modified
2021-09-14 00:00
Summary
Siemens Desigo CC Family

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 perform remote code execution.
Critical infrastructure sectors
Commercial Facilities, Government Facilities
Countries/areas deployed
Worldwide
Company headquarters location
Germany
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.
Additional Resources
For further inquiries on security vulnerabilities in Siemens products and solutions, please contact the Siemens ProductCERT: https://www.siemens.com/cert/advisories
Exploitability
No known public exploits specifically target this vulnerability.


To clipboard 

{
  "document": {
    "acknowledgments": [
      {
        "names": [
          "Markus Wulftange"
        ],
        "organization": "Code White GmbH",
        "summary": "reporting this vulnerability to Siemens"
      }
    ],
    "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 perform remote code execution.",
        "title": "Risk evaluation"
      },
      {
        "category": "other",
        "text": "Commercial Facilities, Government Facilities",
        "title": "Critical infrastructure sectors"
      },
      {
        "category": "other",
        "text": "Worldwide",
        "title": "Countries/areas deployed"
      },
      {
        "category": "other",
        "text": "Germany",
        "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": "general",
        "text": "For further inquiries on security vulnerabilities in Siemens products and solutions, please contact the Siemens ProductCERT: https://www.siemens.com/cert/advisories",
        "title": "Additional Resources"
      },
      {
        "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": "external",
        "summary": "SSA-453715: Deserialization Vulnerability in CCOM Communication Component of Desigo CC Family - CSAF Version",
        "url": "https://cert-portal.siemens.com/productcert/csaf/ssa-453715.json"
      },
      {
        "category": "self",
        "summary": "ICS Advisory ICSA-21-257-17 JSON",
        "url": "https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/OT/white/2021/icsa-21-257-17.json"
      },
      {
        "category": "self",
        "summary": "ICS Advisory ICSA-21-257-17 Web Version",
        "url": "https://www.cisa.gov/news-events/ics-advisories/icsa-21-257-17"
      },
      {
        "category": "external",
        "summary": "Recommended Practices",
        "url": "https://us-cert.cisa.gov/ics/alerts/ICS-ALERT-10-301-01"
      },
      {
        "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"
      },
      {
        "category": "external",
        "summary": "SSA-453715: Deserialization Vulnerability in CCOM Communication Component of Desigo CC Family - PDF Version",
        "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-453715.pdf"
      },
      {
        "category": "external",
        "summary": "SSA-453715: Deserialization Vulnerability in CCOM Communication Component of Desigo CC Family - TXT Version",
        "url": "https://cert-portal.siemens.com/productcert/txt/ssa-453715.txt"
      }
    ],
    "title": "Siemens Desigo CC Family",
    "tracking": {
      "current_release_date": "2021-09-14T00:00:00.000000Z",
      "generator": {
        "engine": {
          "name": "CISA CSAF Generator",
          "version": "1.0.0"
        }
      },
      "id": "ICSA-21-257-17",
      "initial_release_date": "2021-09-14T00:00:00.000000Z",
      "revision_history": [
        {
          "date": "2021-09-14T00:00:00.000000Z",
          "legacy_version": "Initial",
          "number": "1",
          "summary": "ICSA-21-257-17 Siemens Desigo CC Family"
        }
      ],
      "status": "final",
      "version": "1"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:all/*",
                "product": {
                  "name": "Cerberus DMS V4.0",
                  "product_id": "CSAFPID-0001"
                }
              }
            ],
            "category": "product_name",
            "name": "Cerberus DMS V4.0"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:all/*",
                "product": {
                  "name": "Cerberus DMS V4.1",
                  "product_id": "CSAFPID-0002"
                }
              }
            ],
            "category": "product_name",
            "name": "Cerberus DMS V4.1"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:all/*",
                "product": {
                  "name": "Cerberus DMS V4.2",
                  "product_id": "CSAFPID-0003"
                }
              }
            ],
            "category": "product_name",
            "name": "Cerberus DMS V4.2"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c v5.0 QU1",
                "product": {
                  "name": "Cerberus DMS V5.0",
                  "product_id": "CSAFPID-0004"
                }
              }
            ],
            "category": "product_name",
            "name": "Cerberus DMS V5.0"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:all/*",
                "product": {
                  "name": "Desigo CC Compact V4.0",
                  "product_id": "CSAFPID-0005"
                }
              }
            ],
            "category": "product_name",
            "name": "Desigo CC Compact V4.0"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:all/*",
                "product": {
                  "name": "Desigo CC Compact V4.1",
                  "product_id": "CSAFPID-0006"
                }
              }
            ],
            "category": "product_name",
            "name": "Desigo CC Compact V4.1"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:all/*",
                "product": {
                  "name": "Desigo CC Compact V4.2",
                  "product_id": "CSAFPID-0007"
                }
              }
            ],
            "category": "product_name",
            "name": "Desigo CC Compact V4.2"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c V5.0 QU1",
                "product": {
                  "name": "Desigo CC Compact V5.0",
                  "product_id": "CSAFPID-0008"
                }
              }
            ],
            "category": "product_name",
            "name": "Desigo CC Compact V5.0"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:all/*",
                "product": {
                  "name": "Desigo CC V4.0",
                  "product_id": "CSAFPID-0009"
                }
              }
            ],
            "category": "product_name",
            "name": "Desigo CC V4.0"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:all/*",
                "product": {
                  "name": "Desigo CC V4.1",
                  "product_id": "CSAFPID-00010"
                }
              }
            ],
            "category": "product_name",
            "name": "Desigo CC V4.1"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:all/*",
                "product": {
                  "name": "Desigo CC V4.2",
                  "product_id": "CSAFPID-00011"
                }
              }
            ],
            "category": "product_name",
            "name": "Desigo CC V4.2"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c V5.0 QU1",
                "product": {
                  "name": "Desigo CC V5.0",
                  "product_id": "CSAFPID-00012"
                }
              }
            ],
            "category": "product_name",
            "name": "Desigo CC V5.0"
          }
        ],
        "category": "vendor",
        "name": "Siemens"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2021-37181",
      "cwe": {
        "id": "CWE-502",
        "name": "Deserialization of Untrusted Data"
      },
      "notes": [
        {
          "category": "summary",
          "text": "The application deserialises untrusted data without sufficient validations, that could result in an arbitrary deserialization. This could allow an unauthenticated attacker to execute code in the affected system. The CCOM communication component used for Windows App / Click-Once and IE Web / XBAP client connectivity are affected by the vulnerability.",
          "title": "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",
          "CSAFPID-00011",
          "CSAFPID-00012"
        ]
      },
      "references": [
        {
          "summary": "CVE-2021-37181 - Cerberus DMS V4.0",
          "url": "https://support.industry.siemens.com/cs/document/109801179/"
        },
        {
          "summary": "CVE-2021-37181 - Cerberus DMS V4.1",
          "url": "https://support.industry.siemens.com/cs/document/109801179/"
        },
        {
          "summary": "CVE-2021-37181 - Cerberus DMS V4.2",
          "url": "https://support.industry.siemens.com/cs/document/109801179/"
        },
        {
          "summary": "CVE-2021-37181 - Cerberus DMS V5.0",
          "url": "https://support.industry.siemens.com/cs/document/109800951/"
        },
        {
          "summary": "CVE-2021-37181 - Desigo CC Compact V4.0",
          "url": "https://support.industry.siemens.com/cs/document/109801179/"
        },
        {
          "summary": "CVE-2021-37181 - Desigo CC Compact V4.1",
          "url": "https://support.industry.siemens.com/cs/document/109801179/"
        },
        {
          "summary": "CVE-2021-37181 - Desigo CC Compact V4.2",
          "url": "https://support.industry.siemens.com/cs/document/109801179/"
        },
        {
          "summary": "CVE-2021-37181 - Desigo CC Compact V5.0",
          "url": "https://support.industry.siemens.com/cs/document/109800951/"
        },
        {
          "summary": "CVE-2021-37181 - Desigo CC V4.0",
          "url": "https://support.industry.siemens.com/cs/document/109801179/"
        },
        {
          "summary": "CVE-2021-37181 - Desigo CC V4.1",
          "url": "https://support.industry.siemens.com/cs/document/109801179/"
        },
        {
          "summary": "CVE-2021-37181 - Desigo CC V4.2",
          "url": "https://support.industry.siemens.com/cs/document/109801179/"
        },
        {
          "summary": "CVE-2021-37181 - Desigo CC V5.0",
          "url": "https://support.industry.siemens.com/cs/document/109800951/"
        },
        {
          "summary": "CVE-2021-37181 Mitre 5.0 json",
          "url": "https://cert-portal.siemens.com/productcert/mitre/CVE-2021-37181.json"
        },
        {
          "category": "external",
          "summary": "web.nvd.nist.gov",
          "url": "http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2021-37181"
        },
        {
          "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:C/C:H/I:H/A:H"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "Apply Patch 1520637",
          "product_ids": [
            "CSAFPID-0001",
            "CSAFPID-0005",
            "CSAFPID-0009"
          ],
          "url": "https://support.industry.siemens.com/cs/document/109801179/"
        },
        {
          "category": "vendor_fix",
          "details": "Apply Patch 1417968",
          "product_ids": [
            "CSAFPID-0002",
            "CSAFPID-0006",
            "CSAFPID-00010"
          ],
          "url": "https://support.industry.siemens.com/cs/document/109801179/"
        },
        {
          "category": "vendor_fix",
          "details": "Update to V4.2 QU1 and Apply Patch 1417967",
          "product_ids": [
            "CSAFPID-0003"
          ],
          "url": "https://support.industry.siemens.com/cs/document/109801179/"
        },
        {
          "category": "vendor_fix",
          "details": "Update to V5.0 QU1 or later version",
          "product_ids": [
            "CSAFPID-0004",
            "CSAFPID-0008",
            "CSAFPID-00012"
          ],
          "url": "https://support.industry.siemens.com/cs/document/109800951/"
        },
        {
          "category": "vendor_fix",
          "details": "Update to V4.2 QU1 and Apply Patch 1417967",
          "product_ids": [
            "CSAFPID-0007",
            "CSAFPID-00011"
          ],
          "url": "https://support.industry.siemens.com/cs/document/109801179/"
        },
        {
          "category": "mitigation",
          "details": "If the user is using a software version equal or older than V3.x, no patches will be released. Siemens recommends to upgrade to V5.0 QU1 (or any newer version that will be released in the future).",
          "product_ids": [
            "CSAFPID-0001",
            "CSAFPID-0002",
            "CSAFPID-0003",
            "CSAFPID-0004",
            "CSAFPID-0005",
            "CSAFPID-0006",
            "CSAFPID-0007",
            "CSAFPID-0008",
            "CSAFPID-0009",
            "CSAFPID-00010",
            "CSAFPID-00011",
            "CSAFPID-00012"
          ]
        },
        {
          "category": "mitigation",
          "details": "If a patch or Quality Update is not feasible, and if the user can accept to stop the use of Windows App and IE XBAP Web Client, then disable the Web Application and Web Client from SMC. As a result, Windows App and IE XBAP Web Client will stop working and the vulnerability cannot be exploited anymore.",
          "product_ids": [
            "CSAFPID-0001",
            "CSAFPID-0002",
            "CSAFPID-0003",
            "CSAFPID-0004",
            "CSAFPID-0005",
            "CSAFPID-0006",
            "CSAFPID-0007",
            "CSAFPID-0008",
            "CSAFPID-0009",
            "CSAFPID-00010",
            "CSAFPID-00011",
            "CSAFPID-00012"
          ]
        },
        {
          "category": "mitigation",
          "details": "If all the above cannot apply, restrict Desigo CC to dedicated local networks, disabling the Internet access by blocking the CCOM Port for inbound and outbound communication. This will allow the use of Windows App and IE XBAP Client within a defined network space like the local network only. This action requires approval from the user as it will not remove the vulnerability but reduce the exposure. The vulnerability can be exploited in case the attacker can access the protected network first.",
          "product_ids": [
            "CSAFPID-0001",
            "CSAFPID-0002",
            "CSAFPID-0003",
            "CSAFPID-0004",
            "CSAFPID-0005",
            "CSAFPID-0006",
            "CSAFPID-0007",
            "CSAFPID-0008",
            "CSAFPID-0009",
            "CSAFPID-00010",
            "CSAFPID-00011",
            "CSAFPID-00012"
          ]
        },
        {
          "category": "mitigation",
          "details": "As a general security measure Siemens strongly recommends to protect network access to affected products with appropriate mechanisms. It is advised to follow recommended security practices in order to run the devices in a protected IT environment.",
          "product_ids": [
            "CSAFPID-0001",
            "CSAFPID-0002",
            "CSAFPID-0003",
            "CSAFPID-0004",
            "CSAFPID-0005",
            "CSAFPID-0006",
            "CSAFPID-0007",
            "CSAFPID-0008",
            "CSAFPID-0009",
            "CSAFPID-00010",
            "CSAFPID-00011",
            "CSAFPID-00012"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 10.0,
            "baseSeverity": "CRITICAL",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:P/RL:O/RC:C",
            "version": "3.1"
          },
          "products": [
            "CSAFPID-0001",
            "CSAFPID-0002",
            "CSAFPID-0003",
            "CSAFPID-0004",
            "CSAFPID-0005",
            "CSAFPID-0006",
            "CSAFPID-0007",
            "CSAFPID-0008",
            "CSAFPID-0009",
            "CSAFPID-00010",
            "CSAFPID-00011",
            "CSAFPID-00012"
          ]
        }
      ],
      "title": "CVE-2021-37181"
    }
  ]
}


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