{
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    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-01-09T10:15:19Z",
    "severity": "HIGH"
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  "details": "A vulnerability has been identified in SIMATIC CN 4100 (All versions \u003c V2.7). The \"intermediate installation\" system state of the affected application allows an attacker to add their own login credentials to the device. This allows an attacker to remotely login as root and take control of the device even after the affected device is fully set up.",
  "id": "GHSA-c4wm-h8mm-vr45",
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  "published": "2024-01-09T12:30:36Z",
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    },
    {
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      "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-777015.pdf"
    }
  ],
  "schema_version": "1.4.0",
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    }
  ]
}

{
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    "alias": "CVE-2023-49251",
    "id": "GSD-2023-49251"
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  "gsd": {
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      "exploitCode": "unknown",
      "remediation": "unknown",
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            "value": "A vulnerability has been identified in SIMATIC CN 4100 (All versions \u003c V2.7). The \"intermediate installation\" system state of the affected application allows an attacker to add their own login credentials to the device. This allows an attacker to remotely login as root and take control of the device even after the affected device is fully set up."
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            "lang": "es",
            "value": "Se ha identificado una vulnerabilidad en SIMATIC CN 4100 (todas las versiones \u0026lt; V2.7). El estado del sistema de \"intermediate installation\" de la aplicaci\u00f3n afectada permite a un atacante agregar sus propias credenciales de inicio de sesi\u00f3n al dispositivo. Esto permite a un atacante iniciar sesi\u00f3n de forma remota como root y tomar el control del dispositivo incluso despu\u00e9s de que el dispositivo afectado est\u00e9 completamente configurado."
          }
        ],
        "id": "CVE-2023-49251",
        "lastModified": "2024-01-12T15:37:49.740",
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        ],
        "sourceIdentifier": "productcert@siemens.com",
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}

{
  "document": {
    "acknowledgments": [
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        "organization": "Siemens ProductCERT",
        "summary": "reporting these vulnerabilities to CISA."
      }
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    "category": "csaf_security_advisory",
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        "url": "https://us-cert.cisa.gov/tlp/"
      }
    },
    "lang": "en",
    "notes": [
      {
        "category": "summary",
        "text": "SIMATIC CN 4100 is vulnerable to  authorization bypass through user-controlled key, use of default credentials and unauthenticated IP address change that could allow an attacker to remotely login as root or cause denial of service condition of the device. \n\nSiemens has released a new version for SIMATIC CN 4100 and recommends to update to the latest version.",
        "title": "Summary"
      },
      {
        "category": "general",
        "text": "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: \nhttps://www.siemens.com/cert/operational-guidelines-industrial-security), and to follow the recommendations in the product manuals.\nAdditional information on Industrial Security by Siemens can be found at: https://www.siemens.com/industrialsecurity",
        "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",
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    "references": [
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        "category": "self",
        "summary": "SSA-777015: Multiple Vulnerabilities in SIMATIC CN 4100 before V2.7 - CSAF Version",
        "url": "https://cert-portal.siemens.com/productcert/csaf/ssa-777015.json"
      },
      {
        "category": "self",
        "summary": "SSA-777015: Multiple Vulnerabilities in SIMATIC CN 4100 before V2.7 - HTML Version",
        "url": "https://cert-portal.siemens.com/productcert/html/ssa-777015.html"
      },
      {
        "category": "self",
        "summary": "SSA-777015: Multiple Vulnerabilities in SIMATIC CN 4100 before V2.7 - PDF Version",
        "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-777015.pdf"
      },
      {
        "category": "self",
        "summary": "SSA-777015: Multiple Vulnerabilities in SIMATIC CN 4100 before V2.7 - TXT Version",
        "url": "https://cert-portal.siemens.com/productcert/txt/ssa-777015.txt"
      },
      {
        "category": "self",
        "summary": "ICS Advisory ICSA-24-011-09 JSON",
        "url": "https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/OT/white/2024/icsa-24-011-09.json"
      },
      {
        "category": "self",
        "summary": "ICS Advisory ICSA-24-011-09 - Web Version",
        "url": "https://www.cisa.gov/news-events/ics-advisories/icsa-24-011-09"
      },
      {
        "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 SIMATIC CN 4100",
    "tracking": {
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      "generator": {
        "engine": {
          "name": "CISA CSAF Generator",
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      },
      "id": "ICSA-24-011-09",
      "initial_release_date": "2024-01-09T00:00:00Z",
      "revision_history": [
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                "category": "product_version_range",
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        "id": "CWE-639",
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      },
      "notes": [
        {
          "category": "summary",
          "text": "The \"intermediate installation\" system state of the affected application allows an attacker to add their own login credentials to the device. This allows an attacker to remotely login as root and take control of the device even after the affected device is fully set up.",
          "title": "Summary"
        }
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        }
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            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C",
            "version": "3.1"
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          "products": [
            "1"
          ]
        }
      ],
      "title": "CVE-2023-49251"
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    {
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      "cwe": {
        "id": "CWE-20",
        "name": "Improper Input Validation"
      },
      "notes": [
        {
          "category": "summary",
          "text": "The affected application allows IP configuration change without authentication to the device. This could allow an attacker to cause denial of service condition.",
          "title": "Summary"
        }
      ],
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        "known_affected": [
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      },
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          "details": "Update to V2.7 or later version",
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          "url": "https://support.industry.siemens.com/cs/ww/en/view/109814144/"
        }
      ],
      "scores": [
        {
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            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C",
            "version": "3.1"
          },
          "products": [
            "1"
          ]
        }
      ],
      "title": "CVE-2023-49252"
    },
    {
      "cve": "CVE-2023-49621",
      "cwe": {
        "id": "CWE-1392",
        "name": "Use of Default Credentials"
      },
      "notes": [
        {
          "category": "summary",
          "text": "The \"intermediate installation\" system state of the affected application uses default credential with admin privileges. An attacker could use the credentials to gain complete control of the affected device.",
          "title": "Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "1"
        ]
      },
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "Update to V2.7 or later version",
          "product_ids": [
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          ],
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109814144/"
        }
      ],
      "scores": [
        {
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            "baseScore": 9.8,
            "baseSeverity": "CRITICAL",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C",
            "version": "3.1"
          },
          "products": [
            "1"
          ]
        }
      ],
      "title": "CVE-2023-49621"
    }
  ]
}

{
  "document": {
    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "distribution": {
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      "tlp": {
        "label": "WHITE"
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    "lang": "en",
    "notes": [
      {
        "category": "summary",
        "text": "SIMATIC CN 4100 is vulnerable to  authorization bypass through user-controlled key, use of default credentials and unauthenticated IP address change that could allow an attacker to remotely login as root or cause denial of service condition of the device. \n\nSiemens has released a new version for SIMATIC CN 4100 and recommends to update to the latest version.",
        "title": "Summary"
      },
      {
        "category": "general",
        "text": "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: \nhttps://www.siemens.com/cert/operational-guidelines-industrial-security), and to follow the recommendations in the product manuals.\nAdditional information on Industrial Security by Siemens can be found at: https://www.siemens.com/industrialsecurity",
        "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"
      }
    ],
    "publisher": {
      "category": "vendor",
      "contact_details": "productcert@siemens.com",
      "name": "Siemens ProductCERT",
      "namespace": "https://www.siemens.com"
    },
    "references": [
      {
        "category": "self",
        "summary": "SSA-777015: Multiple Vulnerabilities in SIMATIC CN 4100 before V2.7 - HTML Version",
        "url": "https://cert-portal.siemens.com/productcert/html/ssa-777015.html"
      },
      {
        "category": "self",
        "summary": "SSA-777015: Multiple Vulnerabilities in SIMATIC CN 4100 before V2.7 - CSAF Version",
        "url": "https://cert-portal.siemens.com/productcert/csaf/ssa-777015.json"
      },
      {
        "category": "self",
        "summary": "SSA-777015: Multiple Vulnerabilities in SIMATIC CN 4100 before V2.7 - PDF Version",
        "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-777015.pdf"
      },
      {
        "category": "self",
        "summary": "SSA-777015: Multiple Vulnerabilities in SIMATIC CN 4100 before V2.7 - TXT Version",
        "url": "https://cert-portal.siemens.com/productcert/txt/ssa-777015.txt"
      }
    ],
    "title": "SSA-777015: Multiple Vulnerabilities in SIMATIC CN 4100 before V2.7",
    "tracking": {
      "current_release_date": "2024-01-09T00:00:00Z",
      "generator": {
        "engine": {
          "name": "Siemens ProductCERT CSAF Generator",
          "version": "1"
        }
      },
      "id": "SSA-777015",
      "initial_release_date": "2024-01-09T00:00:00Z",
      "revision_history": [
        {
          "date": "2024-01-09T00:00:00Z",
          "legacy_version": "1.0",
          "number": "1",
          "summary": "Publication Date"
        }
      ],
      "status": "interim",
      "version": "1"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003cV2.7",
                "product": {
                  "name": "SIMATIC CN 4100",
                  "product_id": "1"
                }
              }
            ],
            "category": "product_name",
            "name": "SIMATIC CN 4100"
          }
        ],
        "category": "vendor",
        "name": "Siemens"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2023-49251",
      "cwe": {
        "id": "CWE-639",
        "name": "Authorization Bypass Through User-Controlled Key"
      },
      "notes": [
        {
          "category": "summary",
          "text": "The \"intermediate installation\" system state of the affected application allows an attacker to add their own login credentials to the device. This allows an attacker to remotely login as root and take control of the device even after the affected device is fully set up.",
          "title": "Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "1"
        ]
      },
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "Update to V2.7 or later version",
          "product_ids": [
            "1"
          ],
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109814144/"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C",
            "version": "3.1"
          },
          "products": [
            "1"
          ]
        }
      ],
      "title": "CVE-2023-49251"
    },
    {
      "cve": "CVE-2023-49252",
      "cwe": {
        "id": "CWE-20",
        "name": "Improper Input Validation"
      },
      "notes": [
        {
          "category": "summary",
          "text": "The affected application allows IP configuration change without authentication to the device. This could allow an attacker to cause denial of service condition.",
          "title": "Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "1"
        ]
      },
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "Update to V2.7 or later version",
          "product_ids": [
            "1"
          ],
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109814144/"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C",
            "version": "3.1"
          },
          "products": [
            "1"
          ]
        }
      ],
      "title": "CVE-2023-49252"
    },
    {
      "cve": "CVE-2023-49621",
      "cwe": {
        "id": "CWE-1392",
        "name": "Use of Default Credentials"
      },
      "notes": [
        {
          "category": "summary",
          "text": "The \"intermediate installation\" system state of the affected application uses default credential with admin privileges. An attacker could use the credentials to gain complete control of the affected device.",
          "title": "Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "1"
        ]
      },
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "Update to V2.7 or later version",
          "product_ids": [
            "1"
          ],
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109814144/"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 9.8,
            "baseSeverity": "CRITICAL",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C",
            "version": "3.1"
          },
          "products": [
            "1"
          ]
        }
      ],
      "title": "CVE-2023-49621"
    }
  ]
}