ssa-094954
Vulnerability from csaf_siemens
Published
2025-08-12 00:00
Modified
2025-08-12 00:00
Summary
SSA-094954: Authentication Bypass Vulnerability in BIST mode of RUGGEDCOM ROX II

Notes

Summary
RUGGEDCOM ROX II devices do not properly limit access through their Built-In-Self-Test (BIST) mode. This could allow a local attacker to bypass authentication and access a root shell on the device. Siemens is preparing fix versions and recommends specific countermeasures for products where fixes are not, or not yet available.
General Recommendations
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' operational guidelines for Industrial Security (Download: https://www.siemens.com/cert/operational-guidelines-industrial-security), and to follow the recommendations in the product manuals. Additional information on Industrial Security by Siemens can be found at: https://www.siemens.com/industrialsecurity
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
The use of Siemens Security Advisories is subject to the terms and conditions listed on: https://www.siemens.com/productcert/terms-of-use.


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{
  "document": {
    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "distribution": {
      "text": "Disclosure is not limited. (TLPv2: TLP:CLEAR)",
      "tlp": {
        "label": "WHITE"
      }
    },
    "lang": "en",
    "notes": [
      {
        "category": "summary",
        "text": "RUGGEDCOM ROX II devices do not properly limit access through their Built-In-Self-Test (BIST) mode. This could allow a local attacker to bypass authentication and access a root shell on the device.\n\nSiemens is preparing fix versions and recommends specific countermeasures for products where fixes are not, or not yet available.",
        "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": "The use of Siemens Security Advisories is subject to the terms and conditions listed on: https://www.siemens.com/productcert/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-094954: Authentication Bypass Vulnerability in BIST mode of RUGGEDCOM ROX II - HTML Version",
        "url": "https://cert-portal.siemens.com/productcert/html/ssa-094954.html"
      },
      {
        "category": "self",
        "summary": "SSA-094954: Authentication Bypass Vulnerability in BIST mode of RUGGEDCOM ROX II - CSAF Version",
        "url": "https://cert-portal.siemens.com/productcert/csaf/ssa-094954.json"
      }
    ],
    "title": "SSA-094954: Authentication Bypass Vulnerability in BIST mode of RUGGEDCOM ROX II",
    "tracking": {
      "current_release_date": "2025-08-12T00:00:00Z",
      "generator": {
        "engine": {
          "name": "Siemens ProductCERT CSAF Generator",
          "version": "1"
        }
      },
      "id": "SSA-094954",
      "initial_release_date": "2025-08-12T00:00:00Z",
      "revision_history": [
        {
          "date": "2025-08-12T00:00:00Z",
          "legacy_version": "1.0",
          "number": "1",
          "summary": "Publication Date"
        }
      ],
      "status": "interim",
      "version": "1"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:all/*",
                "product": {
                  "name": "RUGGEDCOM ROX MX5000",
                  "product_id": "1"
                }
              }
            ],
            "category": "product_name",
            "name": "RUGGEDCOM ROX MX5000"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:all/*",
                "product": {
                  "name": "RUGGEDCOM ROX MX5000RE",
                  "product_id": "2"
                }
              }
            ],
            "category": "product_name",
            "name": "RUGGEDCOM ROX MX5000RE"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:all/*",
                "product": {
                  "name": "RUGGEDCOM ROX RX1400",
                  "product_id": "3"
                }
              }
            ],
            "category": "product_name",
            "name": "RUGGEDCOM ROX RX1400"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:all/*",
                "product": {
                  "name": "RUGGEDCOM ROX RX1500",
                  "product_id": "4"
                }
              }
            ],
            "category": "product_name",
            "name": "RUGGEDCOM ROX RX1500"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:all/*",
                "product": {
                  "name": "RUGGEDCOM ROX RX1501",
                  "product_id": "5"
                }
              }
            ],
            "category": "product_name",
            "name": "RUGGEDCOM ROX RX1501"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:all/*",
                "product": {
                  "name": "RUGGEDCOM ROX RX1510",
                  "product_id": "6"
                }
              }
            ],
            "category": "product_name",
            "name": "RUGGEDCOM ROX RX1510"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:all/*",
                "product": {
                  "name": "RUGGEDCOM ROX RX1511",
                  "product_id": "7"
                }
              }
            ],
            "category": "product_name",
            "name": "RUGGEDCOM ROX RX1511"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:all/*",
                "product": {
                  "name": "RUGGEDCOM ROX RX1512",
                  "product_id": "8"
                }
              }
            ],
            "category": "product_name",
            "name": "RUGGEDCOM ROX RX1512"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:all/*",
                "product": {
                  "name": "RUGGEDCOM ROX RX1524",
                  "product_id": "9"
                }
              }
            ],
            "category": "product_name",
            "name": "RUGGEDCOM ROX RX1524"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:all/*",
                "product": {
                  "name": "RUGGEDCOM ROX RX1536",
                  "product_id": "10"
                }
              }
            ],
            "category": "product_name",
            "name": "RUGGEDCOM ROX RX1536"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:all/*",
                "product": {
                  "name": "RUGGEDCOM ROX RX5000",
                  "product_id": "11"
                }
              }
            ],
            "category": "product_name",
            "name": "RUGGEDCOM ROX RX5000"
          }
        ],
        "category": "vendor",
        "name": "Siemens"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2025-40761",
      "cwe": {
        "id": "CWE-288",
        "name": "Authentication Bypass Using an Alternate Path or Channel"
      },
      "notes": [
        {
          "category": "summary",
          "text": "Affected devices do not properly limit access through its Built-In-Self-Test (BIST) mode.\r\nThis could allow an attacker with physical access to the serial interface to bypass authentication and get access to a root shell on the device.",
          "title": "Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "1",
          "2",
          "3",
          "4",
          "5",
          "6",
          "7",
          "8",
          "9",
          "10",
          "11"
        ]
      },
      "remediations": [
        {
          "category": "mitigation",
          "details": "Ensure a secure boot password is set as described in the configuration manual to prevent unauthorized access to BIST mode. See \nhttps://support.industry.siemens.com/cs/document/109983826/ Sec. 5.9.3 for more details",
          "product_ids": [
            "3"
          ]
        },
        {
          "category": "mitigation",
          "details": "Ensure a secure boot password is set as described in the configuration manual to prevent unauthorized access to BIST mode. See \nhttps://support.industry.siemens.com/cs/document/109983829/ Sec. 5.9.3 for more details",
          "product_ids": [
            "4",
            "5",
            "6",
            "7",
            "8",
            "9",
            "10"
          ]
        },
        {
          "category": "mitigation",
          "details": "Ensure a secure boot password is set as described in the configuration manual to prevent unauthorized access to BIST mode. See \nhttps://support.industry.siemens.com/cs/document/109983832/ Sec. 5.9.3 for more details",
          "product_ids": [
            "1",
            "2",
            "11"
          ]
        },
        {
          "category": "none_available",
          "details": "Currently no fix is available",
          "product_ids": [
            "1",
            "2",
            "3",
            "4",
            "5",
            "6",
            "7",
            "8",
            "9",
            "10",
            "11"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 7.6,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H",
            "version": "3.1"
          },
          "products": [
            "1",
            "2",
            "3",
            "4",
            "5",
            "6",
            "7",
            "8",
            "9",
            "10",
            "11"
          ]
        }
      ],
      "title": "CVE-2025-40761"
    }
  ]
}


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