VDE-2025-069

Vulnerability from csaf_helmholzgmbhcokg - Published: 2025-07-31 10:00 - Updated: 2025-07-31 10:00
Summary
Helmholz: Sandbox escape in REX200/250 LUA interpreter
Severity
High
Notes
Summary: An authenticated remote attacker can exploit an undocumented method to escape the LUA sandbox in REX200/250 devices, enabling the execution of arbitrary operating system commands and leading to full system compromise.
Impact: This vulnerability allows an authenticated remote attacker to fully compromise the system by executing arbitrary OS commands.
Remediation: Update REX 200/250 to at least version 7.3.0\ **Note**: REX 300 is EOL and will not receive any further updates.
CVE-2025-41688

A high privileged remote attacker can execute arbitrary OS commands using an undocumented method allowing to escape the implemented LUA sandbox.

7.2 (High)
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CWE-653 - Improper Isolation or Compartmentalization
Vendor Fix Update REX 200/250 to at least version 7.3.0\ **Note**: REX 300 is EOL and will not receive any further updates.
Affected products
Product Identifier Version Remediation
Unresolved product id: CSAFPID-32002 —
Product Identifier Version Remediation
Unresolved product id: CSAFPID-31003 —
Unresolved product id: CSAFPID-31004 —
References
Acknowledgments
CERT@VDE certvde.com
Marcel Rick-Cen
To clipboard 

{
  "document": {
    "acknowledgments": [
      {
        "organization": "CERT@VDE",
        "summary": "coordination",
        "urls": [
          "https://certvde.com"
        ]
      },
      {
        "organization": "Marcel Rick-Cen",
        "summary": "reporting"
      }
    ],
    "aggregate_severity": {
      "namespace": "https://www.first.org/cvss/v3.1/specification-document#Qualitative-Severity-Rating-Scale",
      "text": "High"
    },
    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "distribution": {
      "tlp": {
        "label": "WHITE",
        "url": "https://www.first.org/tlp/"
      }
    },
    "lang": "en-GB",
    "notes": [
      {
        "category": "summary",
        "text": "An authenticated remote attacker can exploit an undocumented method to escape the LUA sandbox in REX200/250 devices, enabling the execution of arbitrary operating system commands and leading to full system compromise.",
        "title": "Summary"
      },
      {
        "category": "description",
        "text": "This vulnerability allows an authenticated remote attacker to fully compromise the system by executing arbitrary OS commands.",
        "title": "Impact"
      },
      {
        "category": "description",
        "text": "Update REX 200/250 to at least version 7.3.0\\\n**Note**: REX 300 is EOL and will not receive any further updates.",
        "title": "Remediation"
      }
    ],
    "publisher": {
      "category": "vendor",
      "contact_details": "psirt@helmholz.de",
      "name": "Helmholz GmbH \u0026 Co. KG",
      "namespace": "https://www.helmholz.de"
    },
    "references": [
      {
        "category": "external",
        "summary": "Product security incident reports",
        "url": "https://www.helmholz.de/service-support/service/security-psirt"
      },
      {
        "category": "external",
        "summary": "CERT@VDE Security Advisories for Helmholz",
        "url": "https://certvde.com/en/advisories/vendor/helmholz"
      },
      {
        "category": "self",
        "summary": "VDE-2025-069: Helmholz: Sandbox escape in REX200/250 LUA interpreter - HTML",
        "url": "https://certvde.com/en/advisories/VDE-2025-065"
      },
      {
        "category": "self",
        "summary": "VDE-2025-069: Helmholz: Sandbox escape in REX200/250 LUA interpreter - CSAF",
        "url": "https://helmholz.csaf-tp.certvde.com/.well-known/csaf/white/2025/vde-2025-069.json"
      }
    ],
    "title": "Helmholz: Sandbox escape in REX200/250 LUA interpreter",
    "tracking": {
      "aliases": [
        "VDE-2025-069"
      ],
      "current_release_date": "2025-07-31T10:00:00.000Z",
      "generator": {
        "date": "2025-07-28T06:46:48.634Z",
        "engine": {
          "name": "Secvisogram",
          "version": "2.5.31"
        }
      },
      "id": "VDE-2025-069",
      "initial_release_date": "2025-07-31T10:00:00.000Z",
      "revision_history": [
        {
          "date": "2025-07-31T10:00:00.000Z",
          "number": "1",
          "summary": "Initial revision."
        }
      ],
      "status": "final",
      "version": "1"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_name",
                "name": "REX 300",
                "product": {
                  "name": "Helmholz REX 300",
                  "product_id": "CSAFPID-11002"
                }
              },
              {
                "category": "product_name",
                "name": "REX 200/250",
                "product": {
                  "name": "Helmholz REX 200/250",
                  "product_id": "CSAFPID-11003"
                }
              }
            ],
            "category": "product_family",
            "name": "Hardware"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c=5.1.11",
                "product": {
                  "name": "Firmware \u003c=5.1.11",
                  "product_id": "CSAFPID-21002"
                }
              },
              {
                "category": "product_version_range",
                "name": "\u003c7.3.0",
                "product": {
                  "name": "Firmware \u003c7.3.0",
                  "product_id": "CSAFPID-21003"
                }
              },
              {
                "category": "product_version_range",
                "name": "\u003e=7.3.0",
                "product": {
                  "name": "Firmware \u003e=7.3.0",
                  "product_id": "CSAFPID-22002"
                }
              }
            ],
            "category": "product_family",
            "name": "Firmware"
          }
        ],
        "category": "vendor",
        "name": "MB connect line"
      }
    ],
    "product_groups": [
      {
        "group_id": "CSAFGID-0001",
        "product_ids": [
          "CSAFPID-31003",
          "CSAFPID-31004"
        ],
        "summary": "Affected products."
      }
    ],
    "relationships": [
      {
        "category": "installed_on",
        "full_product_name": {
          "name": "Firmware \u003c=5.1.11 installed on Helmholz REX 300",
          "product_id": "CSAFPID-31003"
        },
        "product_reference": "CSAFPID-21002",
        "relates_to_product_reference": "CSAFPID-11002"
      },
      {
        "category": "installed_on",
        "full_product_name": {
          "name": "Firmware \u003c7.3.0 installed on Helmholz REX 200/250",
          "product_id": "CSAFPID-31004"
        },
        "product_reference": "CSAFPID-21003",
        "relates_to_product_reference": "CSAFPID-11003"
      },
      {
        "category": "installed_on",
        "full_product_name": {
          "name": "Firmware \u003e=7.3.0 installed on Helmholz REX 200/250",
          "product_id": "CSAFPID-32002"
        },
        "product_reference": "CSAFPID-22002",
        "relates_to_product_reference": "CSAFPID-11003"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2025-41688",
      "cwe": {
        "id": "CWE-653",
        "name": "Improper Isolation or Compartmentalization"
      },
      "notes": [
        {
          "audience": "all",
          "category": "description",
          "text": "A high privileged remote attacker can execute arbitrary OS commands using an undocumented method allowing to escape the implemented LUA sandbox.",
          "title": "Vulnerability Description"
        }
      ],
      "product_status": {
        "fixed": [
          "CSAFPID-32002"
        ],
        "known_affected": [
          "CSAFPID-31003",
          "CSAFPID-31004"
        ]
      },
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "Update REX 200/250 to at least version 7.3.0\\\n**Note**: REX 300 is EOL and will not receive any further updates.",
          "group_ids": [
            "CSAFGID-0001"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.2,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "environmentalScore": 7.2,
            "environmentalSeverity": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "HIGH",
            "scope": "UNCHANGED",
            "temporalScore": 7.2,
            "temporalSeverity": "HIGH",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "products": [
            "CSAFPID-31003",
            "CSAFPID-31004"
          ]
        }
      ],
      "title": "CVE-2025-41688"
    }
  ]
}



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