icsa-20-161-05
Vulnerability from csaf_cisa
Published
2020-06-09 00:00
Modified
2021-04-13 00:00
Summary
Siemens SIMATIC, SINAMICS (Update C)

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 could allow an attacker to affect the availability of the devices under certain conditions.
Critical infrastructure sectors
Chemical, Energy, Food and Agriculture, Water and Wastewater Systems
Countries/areas deployed
Worldwide
Company headquarters location
Germany
Recommended Practices
CISA recommends users take the following measures to protect themselves from social engineering attacks:
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.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.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. These vulnerabilities are not exploitable remotely.


To clipboard 

{
  "document": {
    "acknowledgments": [
      {
        "names": [
          "Uri Katz"
        ],
        "organization": "Claroty",
        "summary": "reporting these vulnerabilities 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 these vulnerabilities could allow an attacker to affect the availability of the devices under certain conditions.",
        "title": "Risk evaluation"
      },
      {
        "category": "other",
        "text": "Chemical, Energy, Food and Agriculture, Water and Wastewater Systems",
        "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 the following measures to protect themselves from social engineering attacks:",
        "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": "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. These vulnerabilities are 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-689942: Denial-of-Service and DLL Hijacking Vulnerabilities in Multiple SIMATIC Software Products - CSAF Version",
        "url": "https://cert-portal.siemens.com/productcert/csaf/ssa-689942.json"
      },
      {
        "category": "self",
        "summary": "ICS Advisory ICSA-20-161-05 JSON",
        "url": "https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/OT/white/2020/icsa-20-161-05.json"
      },
      {
        "category": "self",
        "summary": "ICS Advisory ICSA-20-161-05 Web Version",
        "url": "https://www.cisa.gov/news-events/ics-advisories/icsa-20-161-05"
      },
      {
        "category": "external",
        "summary": "Recommended Practices",
        "url": "https://us-cert.cisa.gov/ncas/tips/ST04-014"
      },
      {
        "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-689942: Denial-of-Service and DLL Hijacking Vulnerabilities in Multiple SIMATIC Software Products - PDF Version",
        "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-689942.pdf"
      },
      {
        "category": "external",
        "summary": "SSA-689942: Denial-of-Service and DLL Hijacking Vulnerabilities in Multiple SIMATIC Software Products - TXT Version",
        "url": "https://cert-portal.siemens.com/productcert/txt/ssa-689942.txt"
      }
    ],
    "title": "Siemens SIMATIC, SINAMICS (Update C)",
    "tracking": {
      "current_release_date": "2021-04-13T00:00:00.000000Z",
      "generator": {
        "engine": {
          "name": "CISA CSAF Generator",
          "version": "1.0.0"
        }
      },
      "id": "ICSA-20-161-05",
      "initial_release_date": "2020-06-09T00:00:00.000000Z",
      "revision_history": [
        {
          "date": "2020-06-09T00:00:00.000000Z",
          "legacy_version": "Initial",
          "number": "1",
          "summary": "ICSA-20-161-05 Siemens SIMATIC, SINAMICS"
        },
        {
          "date": "2020-07-14T00:00:00.000000Z",
          "legacy_version": "A",
          "number": "2",
          "summary": "ICSA-20-161-05 Siemens SIMATIC, SINAMICS (Update A)"
        },
        {
          "date": "2020-12-08T00:00:00.000000Z",
          "legacy_version": "B",
          "number": "3",
          "summary": "ICSA-20-161-05 Siemens SIMATIC, SINAMICS (Update B)"
        },
        {
          "date": "2021-04-13T00:00:00.000000Z",
          "legacy_version": "C",
          "number": "4",
          "summary": "ICSA-20-161-05 Siemens SIMATIC, SINAMICS (Update C)"
        }
      ],
      "status": "final",
      "version": "4"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:all/*",
                "product": {
                  "name": "SIMATIC PCS 7 V8.2 and earlier",
                  "product_id": "CSAFPID-0001"
                }
              }
            ],
            "category": "product_name",
            "name": "SIMATIC PCS 7 V8.2 and earlier"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c V9.0 SP3",
                "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 V9.2",
                "product": {
                  "name": "SIMATIC PDM",
                  "product_id": "CSAFPID-0003"
                }
              }
            ],
            "category": "product_name",
            "name": "SIMATIC PDM"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c V5.6 SP2 HF3",
                "product": {
                  "name": "SIMATIC STEP 7 V5.X",
                  "product_id": "CSAFPID-0004"
                }
              }
            ],
            "category": "product_name",
            "name": "SIMATIC STEP 7 V5.X"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c V5.4 HF2",
                "product": {
                  "name": "SINAMICS STARTER (containing STEP 7 OEM version)",
                  "product_id": "CSAFPID-0005"
                }
              }
            ],
            "category": "product_name",
            "name": "SINAMICS STARTER (containing STEP 7 OEM version)"
          }
        ],
        "category": "vendor",
        "name": "Siemens"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2020-7585",
      "cwe": {
        "id": "CWE-427",
        "name": "Uncontrolled Search Path Element"
      },
      "notes": [
        {
          "category": "summary",
          "text": "A DLL Hijacking vulnerability could allow a local attacker to execute code with elevated privileges.\n\nThe security vulnerability could be exploited by an attacker with local access to the affected systems. Successful exploitation requires user privileges but no user interaction. The vulnerability could allow an attacker to compromise the availability of the system as well as to have access to confidential information.",
          "title": "Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "CSAFPID-0001",
          "CSAFPID-0002",
          "CSAFPID-0003",
          "CSAFPID-0004",
          "CSAFPID-0005"
        ]
      },
      "references": [
        {
          "summary": "CVE-2020-7585 - SIMATIC PDM",
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109794361/"
        },
        {
          "summary": "CVE-2020-7585 - SIMATIC STEP 7 V5.X",
          "url": "https://support.industry.siemens.com/cs/de/en/view/109779992/"
        },
        {
          "summary": "CVE-2020-7585 - SINAMICS STARTER (containing STEP 7 OEM version)",
          "url": "https://support.industry.siemens.com/cs/us/en/view/109782792/"
        },
        {
          "summary": "CVE-2020-7585 Mitre 5.0 json",
          "url": "https://cert-portal.siemens.com/productcert/mitre/CVE-2020-7585.json"
        },
        {
          "category": "external",
          "summary": "web.nvd.nist.gov",
          "url": "http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2020-7585"
        },
        {
          "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:H/A:H"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "See recommendations from section Workarounds and Mitigations or upgrade to a newer SIMATIC PCS 7 version",
          "product_ids": [
            "CSAFPID-0001"
          ]
        },
        {
          "category": "vendor_fix",
          "details": "Update to V9.0 SP3 or later version",
          "product_ids": [
            "CSAFPID-0002"
          ]
        },
        {
          "category": "vendor_fix",
          "details": "Update to V9.2 or later version",
          "product_ids": [
            "CSAFPID-0003"
          ],
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109794361/"
        },
        {
          "category": "vendor_fix",
          "details": "Update to V5.6 SP2 HF3 or later version",
          "product_ids": [
            "CSAFPID-0004"
          ],
          "url": "https://support.industry.siemens.com/cs/de/en/view/109779992/"
        },
        {
          "category": "vendor_fix",
          "details": "Update to V5.4 HF2 or later version",
          "product_ids": [
            "CSAFPID-0005"
          ],
          "url": "https://support.industry.siemens.com/cs/us/en/view/109782792/"
        },
        {
          "category": "mitigation",
          "details": "Restrict access to project files on the engineering station to trusted users.",
          "product_ids": [
            "CSAFPID-0001",
            "CSAFPID-0002",
            "CSAFPID-0003",
            "CSAFPID-0004",
            "CSAFPID-0005"
          ]
        },
        {
          "category": "mitigation",
          "details": "Only use project files from trusted sources.",
          "product_ids": [
            "CSAFPID-0001",
            "CSAFPID-0002",
            "CSAFPID-0003",
            "CSAFPID-0004",
            "CSAFPID-0005"
          ]
        },
        {
          "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"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/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"
          ]
        }
      ],
      "title": "CVE-2020-7585"
    },
    {
      "cve": "CVE-2020-7586",
      "cwe": {
        "id": "CWE-122",
        "name": "Heap-based Buffer Overflow"
      },
      "notes": [
        {
          "category": "summary",
          "text": "A buffer overflow vulnerability could allow a local attacker to cause a Denial-of-Service situation.\n\nThe security vulnerability could be exploited by an attacker with local access to the affected systems. Successful exploitation requires user privileges but no user interaction. The vulnerability could allow an attacker to compromise the availability of the system as well as to have access to confidential information.",
          "title": "Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "CSAFPID-0001",
          "CSAFPID-0002",
          "CSAFPID-0003",
          "CSAFPID-0004",
          "CSAFPID-0005"
        ]
      },
      "references": [
        {
          "summary": "CVE-2020-7586 - SIMATIC PDM",
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109794361/"
        },
        {
          "summary": "CVE-2020-7586 - SIMATIC STEP 7 V5.X",
          "url": "https://support.industry.siemens.com/cs/de/en/view/109779992/"
        },
        {
          "summary": "CVE-2020-7586 - SINAMICS STARTER (containing STEP 7 OEM version)",
          "url": "https://support.industry.siemens.com/cs/us/en/view/109782792/"
        },
        {
          "summary": "CVE-2020-7586 Mitre 5.0 json",
          "url": "https://cert-portal.siemens.com/productcert/mitre/CVE-2020-7586.json"
        },
        {
          "category": "external",
          "summary": "web.nvd.nist.gov",
          "url": "http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2020-7586"
        },
        {
          "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:H/A:H"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "See recommendations from section Workarounds and Mitigations or upgrade to a newer SIMATIC PCS 7 version",
          "product_ids": [
            "CSAFPID-0001"
          ]
        },
        {
          "category": "vendor_fix",
          "details": "Update to V9.0 SP3 or later version",
          "product_ids": [
            "CSAFPID-0002"
          ]
        },
        {
          "category": "vendor_fix",
          "details": "Update to V9.2 or later version",
          "product_ids": [
            "CSAFPID-0003"
          ],
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109794361/"
        },
        {
          "category": "vendor_fix",
          "details": "Update to V5.6 SP2 HF3 or later version",
          "product_ids": [
            "CSAFPID-0004"
          ],
          "url": "https://support.industry.siemens.com/cs/de/en/view/109779992/"
        },
        {
          "category": "vendor_fix",
          "details": "Update to V5.4 HF2 or later version",
          "product_ids": [
            "CSAFPID-0005"
          ],
          "url": "https://support.industry.siemens.com/cs/us/en/view/109782792/"
        },
        {
          "category": "mitigation",
          "details": "Restrict access to project files on the engineering station to trusted users.",
          "product_ids": [
            "CSAFPID-0001",
            "CSAFPID-0002",
            "CSAFPID-0003",
            "CSAFPID-0004",
            "CSAFPID-0005"
          ]
        },
        {
          "category": "mitigation",
          "details": "Only use project files from trusted sources.",
          "product_ids": [
            "CSAFPID-0001",
            "CSAFPID-0002",
            "CSAFPID-0003",
            "CSAFPID-0004",
            "CSAFPID-0005"
          ]
        },
        {
          "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"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/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"
          ]
        }
      ],
      "title": "CVE-2020-7586"
    }
  ]
}


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  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
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