icsa-24-303-01
Vulnerability from csaf_cisa
Published
2024-10-23 00:00
Modified
2024-10-23 00:00
Summary
Siemens InterMesh Subscriber Devices

Notes

Summary
InterMesh Subscriber devices contain multiple vulnerabilities that could allow an unauthenticated remote attacker to execute arbitrary code with root privileges. Siemens has released new versions for the affected products and recommends to update to the latest versions.
General Recommendations
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.
Additional Resources
For further inquiries on security vulnerabilities in Siemens products and solutions, please contact the Siemens ProductCERT: https://www.siemens.com/cert/advisories
Terms of Use
Siemens Security Advisories are subject to the terms and conditions contained in Siemens' underlying license terms or other applicable agreements previously agreed to with Siemens (hereinafter "License Terms"). To the extent applicable to information, software or documentation made available in or through a Siemens Security Advisory, the Terms of Use of Siemens' Global Website (https://www.siemens.com/terms_of_use, hereinafter "Terms of Use"), in particular Sections 8-10 of the Terms of Use, shall apply additionally. In case of conflicts, the License Terms shall prevail over the Terms of Use.
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/.
Advisory Conversion Disclaimer
This CISA CSAF advisory was converted from Siemens ProductCERT's CSAF advisory.
Critical infrastructure sectors
Multiple
Countries/areas deployed
Worldwide
Company headquarters location
Germany
Recommended Practices
CISA recommends users take defensive measures to minimize the exploitation risk of this vulnerability.
Recommended Practices
Minimize network exposure for all control system devices and/or systems, and ensure they are not accessible from the internet.
Recommended Practices
Locate control system networks and remote devices behind firewalls and isolate them from business networks.
Recommended Practices
When remote access is required, use more secure methods, such as Virtual Private Networks (VPNs), recognizing VPNs may have vulnerabilities and should be updated to the most recent version available. Also recognize VPN is only as secure as its connected devices.
Recommended Practices
CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures.
Recommended Practices
CISA also provides a section for control systems security recommended practices on the ICS webpage on cisa.gov. Several CISA products detailing cyber defense best practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies.
Recommended Practices
CISA encourages organizations to implement recommended cybersecurity strategies for proactive defense of ICS assets. Additional mitigation guidance and recommended practices are publicly available on the ICS webpage at cisa.gov in the technical information paper, ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation Strategies.
Recommended Practices
Organizations observing suspected malicious activity should follow established internal procedures and report findings to CISA for tracking and correlation against other incidents.


To clipboard 

{
  "document": {
    "acknowledgments": [
      {
        "organization": "AES Corporation",
        "summary": "reporting these vulnerabilities to Siemens."
      },
      {
        "names": [
          "Jean Pereira"
        ],
        "organization": "CYTRES",
        "summary": "reporting these vulnerabilities to Siemens."
      },
      {
        "organization": "Siemens ProductCERT",
        "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",
    "notes": [
      {
        "category": "summary",
        "text": "InterMesh Subscriber devices contain multiple vulnerabilities that could allow an unauthenticated remote attacker to execute arbitrary code with root privileges.\n\nSiemens has released new versions for the affected products and recommends to update to the latest versions.",
        "title": "Summary"
      },
      {
        "category": "general",
        "text": "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.",
        "title": "General Recommendations"
      },
      {
        "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": "legal_disclaimer",
        "text": "Siemens Security Advisories are subject to the terms and conditions contained in Siemens\u0027 underlying license terms or other applicable agreements previously agreed to with Siemens (hereinafter \"License Terms\"). To the extent applicable to information, software or documentation made available in or through a Siemens Security Advisory, the Terms of Use of Siemens\u0027 Global Website (https://www.siemens.com/terms_of_use, hereinafter \"Terms of Use\"), in particular Sections 8-10 of the Terms of Use, shall apply additionally. In case of conflicts, the License Terms shall prevail over the Terms of Use.",
        "title": "Terms of Use"
      },
      {
        "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": "other",
        "text": "This CISA CSAF advisory was converted from Siemens ProductCERT\u0027s CSAF advisory.",
        "title": "Advisory Conversion Disclaimer"
      },
      {
        "category": "other",
        "text": "Multiple",
        "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 exploitation risk of this vulnerability.",
        "title": "Recommended Practices"
      },
      {
        "category": "general",
        "text": "Minimize network exposure for all control system devices and/or systems, and ensure they are not accessible from the internet.",
        "title": "Recommended Practices"
      },
      {
        "category": "general",
        "text": "Locate control system networks and remote devices behind firewalls and isolate them from business networks.",
        "title": "Recommended Practices"
      },
      {
        "category": "general",
        "text": "When remote access is required, use more secure methods, such as Virtual Private Networks (VPNs), recognizing VPNs may have vulnerabilities and should be updated to the most recent version available. Also recognize VPN is only as secure as its connected devices.",
        "title": "Recommended Practices"
      },
      {
        "category": "general",
        "text": "CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures.",
        "title": "Recommended Practices"
      },
      {
        "category": "general",
        "text": "CISA also provides a section for control systems security recommended practices on the ICS webpage on cisa.gov. Several CISA products detailing cyber defense best practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies.",
        "title": "Recommended Practices"
      },
      {
        "category": "general",
        "text": "CISA encourages organizations to implement recommended cybersecurity strategies for proactive defense of ICS assets. Additional mitigation guidance and recommended practices are publicly available on the ICS webpage at cisa.gov in the technical information paper, ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation Strategies.",
        "title": "Recommended Practices"
      },
      {
        "category": "general",
        "text": "Organizations observing suspected malicious activity should follow established internal procedures and report findings to CISA for tracking and correlation against other incidents.",
        "title": "Recommended Practices"
      }
    ],
    "publisher": {
      "category": "other",
      "contact_details": "central@cisa.dhs.gov",
      "name": "CISA",
      "namespace": "https://www.cisa.gov/"
    },
    "references": [
      {
        "category": "self",
        "summary": "SSA-333468: Multiple Vulnerabilities in InterMesh Subscriber Devices - CSAF Version",
        "url": "https://cert-portal.siemens.com/productcert/csaf/ssa-333468.json"
      },
      {
        "category": "self",
        "summary": "SSA-333468: Multiple Vulnerabilities in InterMesh Subscriber Devices - HTML Version",
        "url": "https://cert-portal.siemens.com/productcert/html/ssa-333468.html"
      },
      {
        "category": "self",
        "summary": "ICS Advisory ICSA-24-303-01 JSON",
        "url": "https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/OT/white/2024/icsa-24-303-01.json"
      },
      {
        "category": "self",
        "summary": "ICS Advisory ICSA-24-303-01 - Web Version",
        "url": "https://www.cisa.gov/news-events/ics-advisories/icsa-24-303-01"
      },
      {
        "category": "external",
        "summary": "Recommended Practices",
        "url": "https://www.cisa.gov/uscert/ics/alerts/ICS-ALERT-10-301-01"
      },
      {
        "category": "external",
        "summary": "Recommended Practices",
        "url": "https://www.cisa.gov/resources-tools/resources/ics-recommended-practices"
      },
      {
        "category": "external",
        "summary": "Recommended Practices",
        "url": "https://www.cisa.gov/topics/industrial-control-systems"
      },
      {
        "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://www.cisa.gov/sites/default/files/publications/Cybersecurity_Best_Practices_for_Industrial_Control_Systems.pdf"
      },
      {
        "category": "external",
        "summary": "Recommended Practices",
        "url": "https://www.cisa.gov/uscert/ics/tips/ICS-TIP-12-146-01B"
      }
    ],
    "title": "Siemens InterMesh Subscriber Devices",
    "tracking": {
      "current_release_date": "2024-10-23T00:00:00.000000Z",
      "generator": {
        "engine": {
          "name": "CISA CSAF Generator",
          "version": "1.0.0"
        }
      },
      "id": "ICSA-24-303-01",
      "initial_release_date": "2024-10-23T00:00:00.000000Z",
      "revision_history": [
        {
          "date": "2024-10-23T00:00:00.000000Z",
          "legacy_version": "1.0",
          "number": "1",
          "summary": "Publication Date"
        }
      ],
      "status": "final",
      "version": "1"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:all/\u003cV8.2.12",
                "product": {
                  "name": "InterMesh 7177 Hybrid 2.0 Subscriber",
                  "product_id": "CSAFPID-0001"
                }
              }
            ],
            "category": "product_name",
            "name": "InterMesh 7177 Hybrid 2.0 Subscriber"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:all/\u003cV7.2.12",
                "product": {
                  "name": "InterMesh 7707 Fire Subscriber",
                  "product_id": "CSAFPID-0002"
                }
              }
            ],
            "category": "product_name",
            "name": "InterMesh 7707 Fire Subscriber"
          }
        ],
        "category": "vendor",
        "name": "Siemens"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2024-47901",
      "cwe": {
        "id": "CWE-78",
        "name": "Improper Neutralization of Special Elements used in an OS Command (\u0027OS Command Injection\u0027)"
      },
      "notes": [
        {
          "category": "summary",
          "text": "The web server of affected devices does not sanitize the input parameters in specific GET requests that allow for code execution on operating system level. In combination with other vulnerabilities (CVE-2024-47902, CVE-2024-47903, CVE-2024-47904) this could allow an unauthenticated remote attacker to execute arbitrary code with root privileges.",
          "title": "Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "CSAFPID-0001",
          "CSAFPID-0002"
        ]
      },
      "remediations": [
        {
          "category": "mitigation",
          "details": "Disable the IP interface",
          "product_ids": [
            "CSAFPID-0002"
          ]
        },
        {
          "category": "vendor_fix",
          "details": "Update to V7.2.12 or later version",
          "product_ids": [
            "CSAFPID-0002"
          ]
        },
        {
          "category": "vendor_fix",
          "details": "Update to V8.2.12 or later version",
          "product_ids": [
            "CSAFPID-0001"
          ]
        },
        {
          "category": "workaround",
          "details": "Restrict access to the InterMesh network to trusted systems and persons only",
          "product_ids": [
            "CSAFPID-0001",
            "CSAFPID-0002"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 10,
            "baseSeverity": "CRITICAL",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H",
            "version": "3.1"
          },
          "products": [
            "CSAFPID-0001",
            "CSAFPID-0002"
          ]
        }
      ],
      "title": "CVE-2024-47901"
    },
    {
      "cve": "CVE-2024-47902",
      "cwe": {
        "id": "CWE-306",
        "name": "Missing Authentication for Critical Function"
      },
      "notes": [
        {
          "category": "summary",
          "text": "The web server of affected devices does not authenticate GET requests that execute specific commands (such as `ping`) on operating system level.",
          "title": "Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "CSAFPID-0001",
          "CSAFPID-0002"
        ]
      },
      "remediations": [
        {
          "category": "mitigation",
          "details": "Disable the IP interface",
          "product_ids": [
            "CSAFPID-0002"
          ]
        },
        {
          "category": "vendor_fix",
          "details": "Update to V7.2.12 or later version",
          "product_ids": [
            "CSAFPID-0002"
          ]
        },
        {
          "category": "vendor_fix",
          "details": "Update to V8.2.12 or later version",
          "product_ids": [
            "CSAFPID-0001"
          ]
        },
        {
          "category": "workaround",
          "details": "Restrict access to the InterMesh network to trusted systems and persons only",
          "product_ids": [
            "CSAFPID-0001",
            "CSAFPID-0002"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 7.2,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N",
            "version": "3.1"
          },
          "products": [
            "CSAFPID-0001",
            "CSAFPID-0002"
          ]
        }
      ],
      "title": "CVE-2024-47902"
    },
    {
      "cve": "CVE-2024-47903",
      "cwe": {
        "id": "CWE-250",
        "name": "Execution with Unnecessary Privileges"
      },
      "notes": [
        {
          "category": "summary",
          "text": "The web server of affected devices allows to write arbitrary files to the web server\u0027s DocumentRoot directory.",
          "title": "Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "CSAFPID-0001",
          "CSAFPID-0002"
        ]
      },
      "remediations": [
        {
          "category": "mitigation",
          "details": "Disable the IP interface",
          "product_ids": [
            "CSAFPID-0002"
          ]
        },
        {
          "category": "vendor_fix",
          "details": "Update to V7.2.12 or later version",
          "product_ids": [
            "CSAFPID-0002"
          ]
        },
        {
          "category": "vendor_fix",
          "details": "Update to V8.2.12 or later version",
          "product_ids": [
            "CSAFPID-0001"
          ]
        },
        {
          "category": "workaround",
          "details": "Restrict access to the InterMesh network to trusted systems and persons only",
          "product_ids": [
            "CSAFPID-0001",
            "CSAFPID-0002"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 5.8,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N",
            "version": "3.1"
          },
          "products": [
            "CSAFPID-0001",
            "CSAFPID-0002"
          ]
        }
      ],
      "title": "CVE-2024-47903"
    },
    {
      "cve": "CVE-2024-47904",
      "cwe": {
        "id": "CWE-266",
        "name": "Incorrect Privilege Assignment"
      },
      "notes": [
        {
          "category": "summary",
          "text": "The affected devices contain a SUID binary that could allow an authenticated local attacker to execute arbitrary commands with root privileges.",
          "title": "Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "CSAFPID-0001",
          "CSAFPID-0002"
        ]
      },
      "remediations": [
        {
          "category": "mitigation",
          "details": "Disable the IP interface",
          "product_ids": [
            "CSAFPID-0002"
          ]
        },
        {
          "category": "vendor_fix",
          "details": "Update to V7.2.12 or later version",
          "product_ids": [
            "CSAFPID-0002"
          ]
        },
        {
          "category": "vendor_fix",
          "details": "Update to V8.2.12 or later version",
          "product_ids": [
            "CSAFPID-0001"
          ]
        },
        {
          "category": "workaround",
          "details": "Restrict access to the InterMesh network to trusted systems and persons only",
          "product_ids": [
            "CSAFPID-0001",
            "CSAFPID-0002"
          ]
        }
      ],
      "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",
            "version": "3.1"
          },
          "products": [
            "CSAFPID-0001",
            "CSAFPID-0002"
          ]
        }
      ],
      "title": "CVE-2024-47904"
    }
  ]
}


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