icsa-22-041-02
Vulnerability from csaf_cisa
Published
2022-02-10 00:00
Modified
2022-05-12 00:00
Summary
Siemens SIMATIC WinCC and PCS

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 these vulnerabilities may allow attackers to retrieve and brute force password hashes and access other systems.
Critical infrastructure sectors
Critical Manufacturing
Countries/areas deployed
Worldwide
Company headquarters location
Germany
Recommended Practices
CISA recommends users take defensive measures to minimize the risk of exploitation of these vulnerabilities. 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 on 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 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 these vulnerabilities.


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{
  "document": {
    "acknowledgments": [
      {
        "organization": "Siemens",
        "summary": "reporting these vulnerabilities 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 these vulnerabilities may allow attackers to retrieve and brute force password hashes and access other systems.",
        "title": "Risk evaluation"
      },
      {
        "category": "other",
        "text": "Critical Manufacturing",
        "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 these vulnerabilities. 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 on 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 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 these vulnerabilities.",
        "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-914168: Multiple Vulnerabilities in SIMATIC WinCC Affecting Other SIMATIC Software Products - CSAF Version",
        "url": "https://cert-portal.siemens.com/productcert/csaf/ssa-914168.json"
      },
      {
        "category": "self",
        "summary": "ICS Advisory ICSA-22-041-02 JSON",
        "url": "https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/OT/white/2022/icsa-22-041-02.json"
      },
      {
        "category": "self",
        "summary": "ICS Advisory ICSA-22-041-02 Web Version",
        "url": "https://www.cisa.gov/news-events/ics-advisories/icsa-22-041-02"
      },
      {
        "category": "external",
        "summary": "Recommended Practices",
        "url": "https://www.cisa.gov/uscert/sites/default/files/recommended_practices/NCCIC_ICS-CERT_Defense_in_Depth_2016_S508C.pdf"
      },
      {
        "category": "external",
        "summary": "Recommended Practices",
        "url": "https://www.cisa.gov/uscert/ics/tips/ICS-TIP-12-146-01B"
      },
      {
        "category": "external",
        "summary": "SSA-914168: Multiple Vulnerabilities in SIMATIC WinCC Affecting Other SIMATIC Software Products - PDF Version",
        "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-914168.pdf"
      },
      {
        "category": "external",
        "summary": "SSA-914168: Multiple Vulnerabilities in SIMATIC WinCC Affecting Other SIMATIC Software Products - TXT Version",
        "url": "https://cert-portal.siemens.com/productcert/txt/ssa-914168.txt"
      }
    ],
    "title": "Siemens SIMATIC WinCC and PCS",
    "tracking": {
      "current_release_date": "2022-05-12T00:00:00.000000Z",
      "generator": {
        "engine": {
          "name": "CISA CSAF Generator",
          "version": "1.0.0"
        }
      },
      "id": "ICSA-22-041-02",
      "initial_release_date": "2022-02-10T00:00:00.000000Z",
      "revision_history": [
        {
          "date": "2022-02-10T00:00:00.000000Z",
          "legacy_version": "Initial",
          "number": "1",
          "summary": "ICSA-22-041-02 Siemens SIMATIC WinCC and PCS"
        },
        {
          "date": "2022-04-14T00:00:00.000000Z",
          "legacy_version": "A",
          "number": "2",
          "summary": "ICSA-22-041-02 Siemens SIMATIC WinCC and PCS (Update A)"
        },
        {
          "date": "2022-05-12T00:00:00.000000Z",
          "legacy_version": "B",
          "number": "3",
          "summary": "ICSA-22-041-02 Siemens SIMATIC WinCC and PCS (Update B)"
        }
      ],
      "status": "final",
      "version": "3"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:all/*",
                "product": {
                  "name": "SIMATIC PCS 7 V8.2",
                  "product_id": "CSAFPID-0001"
                }
              }
            ],
            "category": "product_name",
            "name": "SIMATIC PCS 7 V8.2"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:all/*",
                "product": {
                  "name": "SIMATIC PCS 7 V9.0",
                  "product_id": "CSAFPID-0002"
                }
              }
            ],
            "category": "product_name",
            "name": "SIMATIC PCS 7 V9.0"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c V9.1 SP1",
                "product": {
                  "name": "SIMATIC PCS 7 V9.1",
                  "product_id": "CSAFPID-0003"
                }
              }
            ],
            "category": "product_name",
            "name": "SIMATIC PCS 7 V9.1"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c V15 SP1 Update 7",
                "product": {
                  "name": "SIMATIC WinCC V15 and earlier",
                  "product_id": "CSAFPID-0004"
                }
              }
            ],
            "category": "product_name",
            "name": "SIMATIC WinCC V15 and earlier"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c V16 Update 5",
                "product": {
                  "name": "SIMATIC WinCC V16",
                  "product_id": "CSAFPID-0005"
                }
              }
            ],
            "category": "product_name",
            "name": "SIMATIC WinCC V16"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c V17 Update 2",
                "product": {
                  "name": "SIMATIC WinCC V17",
                  "product_id": "CSAFPID-0006"
                }
              }
            ],
            "category": "product_name",
            "name": "SIMATIC WinCC V17"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003e= V17 Update 2 \u003c V17 Update 4",
                "product": {
                  "name": "SIMATIC WinCC V17",
                  "product_id": "CSAFPID-0007"
                }
              }
            ],
            "category": "product_name",
            "name": "SIMATIC WinCC V17"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c V7.4 SP1 Update 19",
                "product": {
                  "name": "SIMATIC WinCC V7.4",
                  "product_id": "CSAFPID-0008"
                }
              }
            ],
            "category": "product_name",
            "name": "SIMATIC WinCC V7.4"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c V7.5 SP2 Update 6",
                "product": {
                  "name": "SIMATIC WinCC V7.5",
                  "product_id": "CSAFPID-0009"
                }
              }
            ],
            "category": "product_name",
            "name": "SIMATIC WinCC V7.5"
          }
        ],
        "category": "vendor",
        "name": "Siemens"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2021-40360",
      "cwe": {
        "id": "CWE-200",
        "name": "Exposure of Sensitive Information to an Unauthorized Actor"
      },
      "notes": [
        {
          "category": "summary",
          "text": "The password hash of a local user account in the remote server could be granted via public API to a user on the affected system. An authenticated attacker could brute force the password hash and use it to login to the server. CVE-2021-40360 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:H/PR:L/UI:N/S:C/C:H/I:N/A:N).",
          "title": "Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "CSAFPID-0001",
          "CSAFPID-0002",
          "CSAFPID-0003",
          "CSAFPID-0004",
          "CSAFPID-0005",
          "CSAFPID-0006",
          "CSAFPID-0008",
          "CSAFPID-0009"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "web.nvd.nist.gov",
          "url": "http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2021-40360"
        },
        {
          "category": "external",
          "summary": "www.first.org",
          "url": "https://www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N"
        }
      ],
      "remediations": [
        {
          "category": "no_fix_planned",
          "details": "Currently no fix is planned",
          "product_ids": [
            "CSAFPID-0001"
          ]
        },
        {
          "category": "vendor_fix",
          "details": "Update to V16 Update 5 or later version",
          "product_ids": [
            "CSAFPID-0005"
          ],
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109776017/"
        },
        {
          "category": "vendor_fix",
          "details": "Update to V17 Update 2 or later version",
          "product_ids": [
            "CSAFPID-0006"
          ],
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109784441/"
        },
        {
          "category": "vendor_fix",
          "details": "Update to V7.4 SP1 Update 19 or later version",
          "product_ids": [
            "CSAFPID-0008"
          ],
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109806846/"
        },
        {
          "category": "vendor_fix",
          "details": "Update to V7.5 SP2 Update 6 or later version",
          "product_ids": [
            "CSAFPID-0009"
          ],
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109793460/"
        },
        {
          "category": "vendor_fix",
          "details": "Install SIMATIC WinCC V7.4 SP1 Update 19 or later version",
          "product_ids": [
            "CSAFPID-0001"
          ],
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109806846/"
        },
        {
          "category": "vendor_fix",
          "details": "Update to V9.0 SP3 UpdateCollection04 or later version",
          "product_ids": [
            "CSAFPID-0002"
          ],
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109780528/"
        },
        {
          "category": "vendor_fix",
          "details": "Update to V9.1 SP1 or later version",
          "product_ids": [
            "CSAFPID-0003"
          ],
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109805073/"
        },
        {
          "category": "vendor_fix",
          "details": "Update to V15 SP1 Update 7 or later version",
          "product_ids": [
            "CSAFPID-0004"
          ],
          "url": "https://support.industry.siemens.com/cs/us/en/view/109763890/"
        },
        {
          "category": "mitigation",
          "details": "As a general security measure, Siemens strongly recommends to protect\nnetwork access to devices with appropriate mechanisms. In order to\noperate the devices in a protected IT environment, Siemens recommends\nto configure the environment according to Siemens\u0027 operational\nguidelines for Industrial Security (Download:\nhttps://www.siemens.com/cert/operational-guidelines-industrial-\nsecurity), and to follow the recommendations in the product manuals.\n\nAdditional information on Industrial Security by Siemens can be found\nat: https://www.siemens.com/industrialsecurity",
          "product_ids": [
            "CSAFPID-0001",
            "CSAFPID-0002",
            "CSAFPID-0003",
            "CSAFPID-0004",
            "CSAFPID-0005",
            "CSAFPID-0006",
            "CSAFPID-0008",
            "CSAFPID-0009"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 6.3,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N/E:P/RL:O/RC:C",
            "version": "3.1"
          },
          "products": [
            "CSAFPID-0001",
            "CSAFPID-0002",
            "CSAFPID-0003",
            "CSAFPID-0004",
            "CSAFPID-0005",
            "CSAFPID-0006",
            "CSAFPID-0008",
            "CSAFPID-0009"
          ]
        }
      ],
      "title": "CVE-2021-40360"
    },
    {
      "cve": "CVE-2021-40363",
      "cwe": {
        "id": "CWE-538",
        "name": "Insertion of Sensitive Information into Externally-Accessible File or Directory"
      },
      "notes": [
        {
          "category": "summary",
          "text": "The affected component stores the credentials of a local system account in a potentially publicly accessible project file using an outdated cipher algorithm. An attacker may use this to brute force the credentials and take over the system. CVE-2021-40363 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:H/PR:L/UI:N/S:C/C:H/I:N/A:N).",
          "title": "Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "CSAFPID-0001",
          "CSAFPID-0002",
          "CSAFPID-0003",
          "CSAFPID-0004",
          "CSAFPID-0005",
          "CSAFPID-0006",
          "CSAFPID-0007",
          "CSAFPID-0008",
          "CSAFPID-0009"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "web.nvd.nist.gov",
          "url": "http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2021-40363"
        },
        {
          "category": "external",
          "summary": "www.first.org",
          "url": "https://www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N"
        }
      ],
      "remediations": [
        {
          "category": "mitigation",
          "details": "CVE-2021-40363: Harden the application\u0027s host to prevent local access\nby untrusted personnel",
          "product_ids": [
            "CSAFPID-0001",
            "CSAFPID-0002",
            "CSAFPID-0003",
            "CSAFPID-0004",
            "CSAFPID-0005",
            "CSAFPID-0006",
            "CSAFPID-0007",
            "CSAFPID-0008",
            "CSAFPID-0009"
          ]
        },
        {
          "category": "no_fix_planned",
          "details": "Currently no fix is planned",
          "product_ids": [
            "CSAFPID-0001"
          ]
        },
        {
          "category": "vendor_fix",
          "details": "Update to V16 Update 5 or later version",
          "product_ids": [
            "CSAFPID-0005"
          ],
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109776017/"
        },
        {
          "category": "vendor_fix",
          "details": "Update to V17 Update 2 or later version",
          "product_ids": [
            "CSAFPID-0006"
          ],
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109784441/"
        },
        {
          "category": "vendor_fix",
          "details": "Update to V7.4 SP1 Update 19 or later version",
          "product_ids": [
            "CSAFPID-0008"
          ],
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109806846/"
        },
        {
          "category": "vendor_fix",
          "details": "Update to V7.5 SP2 Update 6 or later version",
          "product_ids": [
            "CSAFPID-0009"
          ],
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109793460/"
        },
        {
          "category": "vendor_fix",
          "details": "Install SIMATIC WinCC V7.4 SP1 Update 19 or later version",
          "product_ids": [
            "CSAFPID-0001"
          ],
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109806846/"
        },
        {
          "category": "vendor_fix",
          "details": "Update to V9.0 SP3 UpdateCollection04 or later version",
          "product_ids": [
            "CSAFPID-0002"
          ],
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109780528/"
        },
        {
          "category": "vendor_fix",
          "details": "Update to V9.1 SP1 or later version",
          "product_ids": [
            "CSAFPID-0003"
          ],
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109805073/"
        },
        {
          "category": "vendor_fix",
          "details": "Update to V17 Update 4 or later version",
          "product_ids": [
            "CSAFPID-0007"
          ],
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109784441/"
        },
        {
          "category": "vendor_fix",
          "details": "Update to V15 SP1 Update 7 or later version",
          "product_ids": [
            "CSAFPID-0004"
          ],
          "url": "https://support.industry.siemens.com/cs/us/en/view/109763890/"
        },
        {
          "category": "mitigation",
          "details": "As a general security measure, Siemens strongly recommends to protect\nnetwork access to devices with appropriate mechanisms. In order to\noperate the devices in a protected IT environment, Siemens recommends\nto configure the environment according to Siemens\u0027 operational\nguidelines for Industrial Security (Download:\nhttps://www.siemens.com/cert/operational-guidelines-industrial-\nsecurity), and to follow the recommendations in the product manuals.\n\nAdditional information on Industrial Security by Siemens can be found\nat: https://www.siemens.com/industrialsecurity",
          "product_ids": [
            "CSAFPID-0001",
            "CSAFPID-0002",
            "CSAFPID-0003",
            "CSAFPID-0004",
            "CSAFPID-0005",
            "CSAFPID-0006",
            "CSAFPID-0007",
            "CSAFPID-0008",
            "CSAFPID-0009"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 5.5,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/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"
          ]
        }
      ],
      "title": "CVE-2021-40363"
    }
  ]
}


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