icsa-22-167-10
Vulnerability from csaf_cisa
Published
2022-06-16 00:00
Modified
2022-06-16 00:00
Summary
Siemens SCALANCE XM-400 and XR-500

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 unauthenticated remote attacker to cause interruptions in the network.
Critical infrastructure sectors
Multiple Sectors
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 on cisa.gov/icsSeveral 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/icsin 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
Recommended Practices
Disable OSPF in the layer 3 configuration menu (note that OSPF is disabled by default). The vulnerability is not exploitable, when OSPF is disabled
Exploitability
No known public exploits specifically target this vulnerability. This vulnerability has a high attack complexity.


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{
  "document": {
    "acknowledgments": [
      {
        "organization": "Siemens",
        "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 could allow an unauthenticated remote attacker to cause interruptions in the network.",
        "title": "Risk evaluation"
      },
      {
        "category": "other",
        "text": "Multiple Sectors",
        "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 on cisa.gov/icsSeveral 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/icsin 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": "general",
        "text": "Disable OSPF in the layer 3 configuration menu (note that OSPF is disabled by default). The vulnerability is not exploitable, when OSPF is disabled",
        "title": "Recommended Practices"
      },
      {
        "category": "other",
        "text": "No known public exploits specifically target this vulnerability. This vulnerability has a high attack complexity.",
        "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-145224: Vulnerability in OSPF Packet Handling of SCALANCE XM-400 and XR-500 Devices - CSAF Version",
        "url": "https://cert-portal.siemens.com/productcert/csaf/ssa-145224.json"
      },
      {
        "category": "self",
        "summary": "ICS Advisory ICSA-22-167-10 JSON",
        "url": "https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/OT/white/2022/icsa-22-167-10.json"
      },
      {
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        "url": "https://www.cisa.gov/news-events/ics-advisories/icsa-22-167-10"
      },
      {
        "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"
      },
      {
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        "summary": "Recommended Practices",
        "url": "https://www.cisa.gov/uscert/ics/tips/ICS-TIP-12-146-01B"
      },
      {
        "category": "external",
        "summary": "SSA-145224: Vulnerability in OSPF Packet Handling of SCALANCE XM-400 and XR-500 Devices - PDF Version",
        "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-145224.pdf"
      },
      {
        "category": "external",
        "summary": "SSA-145224: Vulnerability in OSPF Packet Handling of SCALANCE XM-400 and XR-500 Devices - TXT Version",
        "url": "https://cert-portal.siemens.com/productcert/txt/ssa-145224.txt"
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    "title": "Siemens SCALANCE XM-400 and XR-500",
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  },
  "vulnerabilities": [
    {
      "cve": "CVE-2021-37182",
      "cwe": {
        "id": "CWE-354",
        "name": "Improper Validation of Integrity Check Value"
      },
      "notes": [
        {
          "category": "summary",
          "text": "The OSPF protocol implementation in affected devices fails to verify the checksum and length fields in the OSPF LS Update messages.\n\nAn unauthenticated remote attacker could exploit this vulnerability to cause interruptions in the network by sending specially crafted OSPF packets. Successful exploitation requires OSPF to be enabled on an affected device.",
          "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",
          "CSAFPID-00026"
        ]
      },
      "references": [
        {
          "summary": "CVE-2021-37182 - SCALANCE XM408-4C",
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109809635/"
        },
        {
          "summary": "CVE-2021-37182 - SCALANCE XM408-4C (L3 int.)",
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109809635/"
        },
        {
          "summary": "CVE-2021-37182 - SCALANCE XM408-8C",
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109809635/"
        },
        {
          "summary": "CVE-2021-37182 - SCALANCE XM408-8C (L3 int.)",
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109809635/"
        },
        {
          "summary": "CVE-2021-37182 - SCALANCE XM416-4C",
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109809635/"
        },
        {
          "summary": "CVE-2021-37182 - SCALANCE XM416-4C (L3 int.)",
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109809635/"
        },
        {
          "summary": "CVE-2021-37182 - SCALANCE XR524-8C, 1x230V",
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109809635/"
        },
        {
          "summary": "CVE-2021-37182 - SCALANCE XR524-8C, 1x230V (L3 int.)",
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109809635/"
        },
        {
          "summary": "CVE-2021-37182 - SCALANCE XR524-8C, 2x230V",
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109809635/"
        },
        {
          "summary": "CVE-2021-37182 - SCALANCE XR524-8C, 2x230V (L3 int.)",
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109809635/"
        },
        {
          "summary": "CVE-2021-37182 - SCALANCE XR524-8C, 24V",
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109809635/"
        },
        {
          "summary": "CVE-2021-37182 - SCALANCE XR524-8C, 24V (L3 int.)",
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109809635/"
        },
        {
          "summary": "CVE-2021-37182 - SCALANCE XR526-8C, 1x230V",
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109809635/"
        },
        {
          "summary": "CVE-2021-37182 - SCALANCE XR526-8C, 1x230V (L3 int.)",
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109809635/"
        },
        {
          "summary": "CVE-2021-37182 - SCALANCE XR526-8C, 2x230V",
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109809635/"
        },
        {
          "summary": "CVE-2021-37182 - SCALANCE XR526-8C, 2x230V (L3 int.)",
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109809635/"
        },
        {
          "summary": "CVE-2021-37182 - SCALANCE XR526-8C, 24V",
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109809635/"
        },
        {
          "summary": "CVE-2021-37182 - SCALANCE XR526-8C, 24V (L3 int.)",
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109809635/"
        },
        {
          "summary": "CVE-2021-37182 - SCALANCE XR528-6M",
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109809635/"
        },
        {
          "summary": "CVE-2021-37182 - SCALANCE XR528-6M (2HR2)",
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109809635/"
        },
        {
          "summary": "CVE-2021-37182 - SCALANCE XR528-6M (2HR2, L3 int.)",
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109809635/"
        },
        {
          "summary": "CVE-2021-37182 - SCALANCE XR528-6M (L3 int.)",
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109809635/"
        },
        {
          "summary": "CVE-2021-37182 - SCALANCE XR552-12M",
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109809635/"
        },
        {
          "summary": "CVE-2021-37182 - SCALANCE XR552-12M (2HR2)",
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109809635/"
        },
        {
          "summary": "CVE-2021-37182 - SCALANCE XR552-12M (2HR2)",
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109809635/"
        },
        {
          "summary": "CVE-2021-37182 - SCALANCE XR552-12M (2HR2, L3 int.)",
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109809635/"
        },
        {
          "summary": "CVE-2021-37182 Mitre 5.0 json",
          "url": "https://cert-portal.siemens.com/productcert/mitre/CVE-2021-37182.json"
        },
        {
          "category": "external",
          "summary": "web.nvd.nist.gov",
          "url": "http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2021-37182"
        },
        {
          "category": "external",
          "summary": "www.first.org",
          "url": "https://www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "Update to V6.5 or later version",
          "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",
            "CSAFPID-00026"
          ],
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109809635/"
        },
        {
          "category": "mitigation",
          "details": "Disable OSPF in the layer 3 configuration menu (note that OSPF is disabled by default). The vulnerability is not exploitable, when OSPF is disabled",
          "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",
            "CSAFPID-00026"
          ]
        },
        {
          "category": "mitigation",
          "details": "If OSPF is used, set a password for the OSPF interface and enable MD5 authentication",
          "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",
            "CSAFPID-00026"
          ]
        },
        {
          "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",
            "CSAFPID-00026"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 5.9,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/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",
            "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",
            "CSAFPID-00026"
          ]
        }
      ],
      "title": "CVE-2021-37182"
    }
  ]
}


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