ICSA-20-252-07
Vulnerability from csaf_cisa
Published
2020-09-08 00:00
Modified
2022-03-10 00:00
Summary
Siemens Industrial Products (Update F)

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 may allow an authenticated user to enable information disclosure via local access.
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 this vulnerability. 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. This vulnerability is not exploitable remotely.


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{
  "document": {
    "acknowledgments": [
      {
        "names": [
          "Alyssa Milburn",
          "Hany Ragab",
          "Kaveh Razavi",
          "Herbert Bos",
          "Cristiano Giuffrida"
        ],
        "organization": "the VUSec group at VU Amsterdam",
        "summary": "reporting this vulnerability to Intel"
      }
    ],
    "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 to enable information disclosure via local access.",
        "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 this vulnerability. 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. This vulnerability is not exploitable remotely.",
        "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-534763: Special Register Buffer Data Sampling (SRBDS) aka Crosstalk in Industrial Products - CSAF Version",
        "url": "https://cert-portal.siemens.com/productcert/csaf/ssa-534763.json"
      },
      {
        "category": "self",
        "summary": "ICS Advisory ICSA-20-252-07 JSON",
        "url": "https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/OT/white/2020/icsa-20-252-07.json"
      },
      {
        "category": "self",
        "summary": "ICS Advisory ICSA-20-252-07 Web Version",
        "url": "https://www.cisa.gov/news-events/ics-advisories/icsa-20-252-07"
      },
      {
        "category": "external",
        "summary": "Recommended Practices",
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      },
      {
        "category": "external",
        "summary": "Recommended Practices",
        "url": "https://us-cert.cisa.gov/ics/tips/ICS-TIP-12-146-01B"
      },
      {
        "category": "external",
        "summary": "SSA-534763: Special Register Buffer Data Sampling (SRBDS) aka Crosstalk in Industrial Products - PDF Version",
        "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-534763.pdf"
      },
      {
        "category": "external",
        "summary": "SSA-534763: Special Register Buffer Data Sampling (SRBDS) aka Crosstalk in Industrial Products - TXT Version",
        "url": "https://cert-portal.siemens.com/productcert/txt/ssa-534763.txt"
      }
    ],
    "title": "Siemens Industrial Products (Update F)",
    "tracking": {
      "current_release_date": "2022-03-10T00:00:00.000000Z",
      "generator": {
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      "status": "final",
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  },
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          },
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              }
            ],
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          {
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            ],
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          },
          {
            "branches": [
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                "category": "product_version_range",
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                "product": {
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                  "product_id": "CSAFPID-00018"
                }
              }
            ],
            "category": "product_name",
            "name": "SIMATIC IPC677E"
          },
          {
            "branches": [
              {
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                "product": {
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                }
              }
            ],
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            "name": "SIMATIC IPC827D"
          },
          {
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                }
              }
            ],
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            "name": "SIMATIC IPC847D"
          },
          {
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                }
              }
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            "name": "SIMATIC ITP1000"
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  },
  "vulnerabilities": [
    {
      "cve": "CVE-2020-0543",
      "cwe": {
        "id": "CWE-200",
        "name": "Exposure of Sensitive Information to an Unauthorized Actor"
      },
      "notes": [
        {
          "category": "summary",
          "text": "Incomplete cleanup from specific special register read operations in some Intel(R) Processors may allow an authenticated user to potentially enable information disclosure via local access.",
          "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",
          "CSAFPID-00013",
          "CSAFPID-00014",
          "CSAFPID-00015",
          "CSAFPID-00016",
          "CSAFPID-00017",
          "CSAFPID-00018",
          "CSAFPID-00019",
          "CSAFPID-00020",
          "CSAFPID-00021",
          "CSAFPID-00022",
          "CSAFPID-00023",
          "CSAFPID-00024",
          "CSAFPID-00025"
        ]
      },
      "references": [
        {
          "summary": "CVE-2020-0543 - SIMATIC Field PG M5",
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109763408"
        },
        {
          "summary": "CVE-2020-0543 - SIMATIC Field PG M6",
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109763408"
        },
        {
          "summary": "CVE-2020-0543 - SIMATIC IPC427E (incl. SIPLUS variants)",
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109763408"
        },
        {
          "summary": "CVE-2020-0543 - SIMATIC IPC477E",
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109763408"
        },
        {
          "summary": "CVE-2020-0543 - SIMATIC IPC477E Pro",
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109763408"
        },
        {
          "summary": "CVE-2020-0543 - SIMATIC IPC527G",
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109763408"
        },
        {
          "summary": "CVE-2020-0543 - SIMATIC IPC547G",
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109763408"
        },
        {
          "summary": "CVE-2020-0543 - SIMATIC IPC627E",
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109763408"
        },
        {
          "summary": "CVE-2020-0543 - SIMATIC IPC647E",
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109763408"
        },
        {
          "summary": "CVE-2020-0543 - SIMATIC IPC677E",
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109763408"
        },
        {
          "summary": "CVE-2020-0543 - SIMATIC IPC847E",
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109763408"
        },
        {
          "summary": "CVE-2020-0543 - SIMATIC IPC3000 SMART V2",
          "url": "https://support.industry.siemens.com/cs/cn/en/view/109763408/"
        },
        {
          "summary": "CVE-2020-0543 - SIMATIC ITP1000",
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109763408"
        },
        {
          "summary": "CVE-2020-0543 Mitre 5.0 json",
          "url": "https://cert-portal.siemens.com/productcert/mitre/CVE-2020-0543.json"
        },
        {
          "category": "external",
          "summary": "web.nvd.nist.gov",
          "url": "http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2020-0543"
        },
        {
          "category": "external",
          "summary": "www.first.org",
          "url": "https://www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:P/RL:O/RC:C"
        }
      ],
      "remediations": [
        {
          "category": "no_fix_planned",
          "details": "Currently no remediation is planned",
          "product_ids": [
            "CSAFPID-0001",
            "CSAFPID-0004",
            "CSAFPID-0005",
            "CSAFPID-0007",
            "CSAFPID-00011",
            "CSAFPID-00013",
            "CSAFPID-00015",
            "CSAFPID-00017",
            "CSAFPID-00019",
            "CSAFPID-00020",
            "CSAFPID-00024",
            "CSAFPID-00025"
          ]
        },
        {
          "category": "vendor_fix",
          "details": "Update BIOS to V22.01.08",
          "product_ids": [
            "CSAFPID-0002"
          ],
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109763408"
        },
        {
          "category": "vendor_fix",
          "details": "Update BIOS to V26.01.07",
          "product_ids": [
            "CSAFPID-0003"
          ],
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109763408"
        },
        {
          "category": "vendor_fix",
          "details": "Update BIOS to V21.01.14",
          "product_ids": [
            "CSAFPID-0006",
            "CSAFPID-0008",
            "CSAFPID-0009"
          ],
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109763408"
        },
        {
          "category": "vendor_fix",
          "details": "Update BIOS to V1.4.0",
          "product_ids": [
            "CSAFPID-00010"
          ],
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109763408"
        },
        {
          "category": "vendor_fix",
          "details": "Update BIOS to R1.28.0",
          "product_ids": [
            "CSAFPID-00012"
          ],
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109763408"
        },
        {
          "category": "vendor_fix",
          "details": "Update BIOS to V25.02.06",
          "product_ids": [
            "CSAFPID-00014",
            "CSAFPID-00016",
            "CSAFPID-00018",
            "CSAFPID-00021"
          ],
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109763408"
        },
        {
          "category": "vendor_fix",
          "details": "Update BIOS to V1.B or later version",
          "product_ids": [
            "CSAFPID-00022"
          ],
          "url": "https://support.industry.siemens.com/cs/cn/en/view/109763408/"
        },
        {
          "category": "vendor_fix",
          "details": "Update BIOS to V23.01.08",
          "product_ids": [
            "CSAFPID-00023"
          ],
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109763408"
        },
        {
          "category": "mitigation",
          "details": "As a prerequisite for an attack, an attacker must be able to run untrusted code on affected systems. Siemens recommends limiting the possibilities to run untrusted code if possible.",
          "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",
            "CSAFPID-00013",
            "CSAFPID-00014",
            "CSAFPID-00015",
            "CSAFPID-00016",
            "CSAFPID-00017",
            "CSAFPID-00018",
            "CSAFPID-00019",
            "CSAFPID-00020",
            "CSAFPID-00021",
            "CSAFPID-00022",
            "CSAFPID-00023",
            "CSAFPID-00024",
            "CSAFPID-00025"
          ]
        },
        {
          "category": "mitigation",
          "details": "Applying a Defense-in-Depth concept can help to reduce the probability that untrusted code is run on the system. Siemens recommends to apply the Defense-in-Depth concept: 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",
            "CSAFPID-00010",
            "CSAFPID-00011",
            "CSAFPID-00012",
            "CSAFPID-00013",
            "CSAFPID-00014",
            "CSAFPID-00015",
            "CSAFPID-00016",
            "CSAFPID-00017",
            "CSAFPID-00018",
            "CSAFPID-00019",
            "CSAFPID-00020",
            "CSAFPID-00021",
            "CSAFPID-00022",
            "CSAFPID-00023",
            "CSAFPID-00024",
            "CSAFPID-00025"
          ]
        },
        {
          "category": "mitigation",
          "details": "As a general security measure, Siemens strongly recommends to protect network access to devices with appropriate mechanisms. In order to operate the devices in a protected IT environment, Siemens recommends to configure the environment according to Siemens\u0027 operational guidelines for Industrial Security (Download: https://www.siemens.com/cert/operational-guidelines-industrial-security), and to follow the recommendations in the product manuals.\n\nAdditional information on Industrial Security by Siemens can be found at: 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",
            "CSAFPID-00010",
            "CSAFPID-00011",
            "CSAFPID-00012",
            "CSAFPID-00013",
            "CSAFPID-00014",
            "CSAFPID-00015",
            "CSAFPID-00016",
            "CSAFPID-00017",
            "CSAFPID-00018",
            "CSAFPID-00019",
            "CSAFPID-00020",
            "CSAFPID-00021",
            "CSAFPID-00022",
            "CSAFPID-00023",
            "CSAFPID-00024",
            "CSAFPID-00025"
          ]
        }
      ],
      "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",
            "CSAFPID-00010",
            "CSAFPID-00011",
            "CSAFPID-00012",
            "CSAFPID-00013",
            "CSAFPID-00014",
            "CSAFPID-00015",
            "CSAFPID-00016",
            "CSAFPID-00017",
            "CSAFPID-00018",
            "CSAFPID-00019",
            "CSAFPID-00020",
            "CSAFPID-00021",
            "CSAFPID-00022",
            "CSAFPID-00023",
            "CSAFPID-00024",
            "CSAFPID-00025"
          ]
        }
      ],
      "title": "CVE-2020-0543"
    }
  ]
}


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