VDE-2025-034

Vulnerability from csaf_mbconnectlinegmbh - Published: 2025-06-24 10:00 - Updated: 2025-06-24 10:00
Summary
Vulnerabilities in mbCONNECT24/mymbCONNECT24
Severity
Critical
Notes
Summary: The mb24api endpoint reachable when connected via VPN is missing authentication for sensitive functions. This can lead to information disclosure of user- and device names and to DoS.
Impact: Some limited sensitive data can be accessed and a DoS can be performed targeting a specific user/device.
Remediation: Update to latest version: 2.18.0
General Recommendation: Always use the latest available firmware version on all devices.
CVE-2025-3090

An unauthenticated remote attacker can obtain limited sensitive information and/or DoS the device due to missing authentication for critical function.

8.2 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
CWE-306 - Missing Authentication for Critical Function
Vendor Fix Update to latest version: 2.18.0
References
Acknowledgments
CERT@VDE certvde.com
To clipboard 

{
  "document": {
    "acknowledgments": [
      {
        "organization": "CERT@VDE",
        "summary": "coordination",
        "urls": [
          "https://certvde.com"
        ]
      }
    ],
    "aggregate_severity": {
      "namespace": "https://mbconnectline.com",
      "text": "critical"
    },
    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "distribution": {
      "tlp": {
        "label": "WHITE"
      }
    },
    "lang": "en-GB",
    "notes": [
      {
        "category": "summary",
        "text": "The mb24api endpoint reachable when connected via VPN is missing authentication for sensitive functions. This can lead to information disclosure of user- and device names and to DoS.",
        "title": "Summary"
      },
      {
        "category": "description",
        "text": "Some limited sensitive data can be accessed and a DoS can be performed targeting a specific user/device.",
        "title": "Impact"
      },
      {
        "category": "description",
        "text": "Update to latest version: 2.18.0",
        "title": "Remediation"
      },
      {
        "category": "general",
        "text": "Always use the latest available firmware version on all devices.",
        "title": "General Recommendation"
      }
    ],
    "publisher": {
      "category": "vendor",
      "contact_details": "security-team@mbconnectline.de",
      "name": "MB connect line GmbH",
      "namespace": "https://mbconnectline.com"
    },
    "references": [
      {
        "category": "external",
        "summary": "MB connect line GmbH Advisories",
        "url": "https://mbconnectline.com/security-advice"
      },
      {
        "category": "external",
        "summary": "CERT@VDE Security Advisories for MB connect line GmbH",
        "url": "https://certvde.com/en/advisories/vendor/mbconnectline"
      },
      {
        "category": "self",
        "summary": "VDE-2025-034: Vulnerabilities in mbCONNECT24/mymbCONNECT24 - HTML",
        "url": "https://certvde.com/en/advisories/VDE-2025-034"
      },
      {
        "category": "self",
        "summary": "VDE-2025-034: Vulnerabilities in mbCONNECT24/mymbCONNECT24 - CSAF",
        "url": "https://mbconnectline.csaf-tp.certvde.com/.well-known/csaf/white/2025/vde-2025-034.json"
      }
    ],
    "title": "Vulnerabilities in mbCONNECT24/mymbCONNECT24",
    "tracking": {
      "aliases": [
        "VDE-2025-034"
      ],
      "current_release_date": "2025-06-24T10:00:00.000Z",
      "generator": {
        "date": "2025-04-17T12:54:26.864Z",
        "engine": {
          "name": "Secvisogram",
          "version": "2.5.18"
        }
      },
      "id": "VDE-2025-034",
      "initial_release_date": "2025-06-24T10:00:00.000Z",
      "revision_history": [
        {
          "date": "2025-06-24T10:00:00.000Z",
          "number": "1",
          "summary": "Initial revision."
        }
      ],
      "status": "final",
      "version": "1"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "branches": [
                  {
                    "category": "product_name",
                    "name": "mbCONNECT24",
                    "product": {
                      "name": "mbCONNECT24",
                      "product_id": "CSAFPID-11001"
                    }
                  },
                  {
                    "category": "product_name",
                    "name": "mymbCONNECT24",
                    "product": {
                      "name": "mymbCONNECT24",
                      "product_id": "CSAFPID-11002"
                    }
                  }
                ],
                "category": "product_family",
                "name": "mbCONNECT24"
              }
            ],
            "category": "product_family",
            "name": "Hardware"
          },
          {
            "branches": [
              {
                "category": "product_version",
                "name": "2.18.0",
                "product": {
                  "name": "Firmware 2.18.0",
                  "product_id": "CSAFPID-22001"
                }
              },
              {
                "category": "product_version_range",
                "name": "\u003c2.17.1",
                "product": {
                  "name": "Firmware \u003c2.18.0",
                  "product_id": "CSAFPID-21001"
                }
              }
            ],
            "category": "product_family",
            "name": "Firmware"
          }
        ],
        "category": "vendor",
        "name": "MB connect line GmbH"
      }
    ],
    "product_groups": [
      {
        "group_id": "CSAFGID-0001",
        "product_ids": [
          "CSAFPID-31001",
          "CSAFPID-31002"
        ],
        "summary": "Affected products."
      },
      {
        "group_id": "CSAFGID-0002",
        "product_ids": [
          "CSAFPID-32001",
          "CSAFPID-32002"
        ],
        "summary": "Fixed products."
      }
    ],
    "relationships": [
      {
        "category": "installed_on",
        "full_product_name": {
          "name": "Firmware \u003c2.18.0 installed on mbCONNECT24",
          "product_id": "CSAFPID-31001"
        },
        "product_reference": "CSAFPID-21001",
        "relates_to_product_reference": "CSAFPID-11001"
      },
      {
        "category": "installed_on",
        "full_product_name": {
          "name": "Firmware \u003c2.18.0 installed on mymbCONNECT24",
          "product_id": "CSAFPID-31002"
        },
        "product_reference": "CSAFPID-21001",
        "relates_to_product_reference": "CSAFPID-11002"
      },
      {
        "category": "installed_on",
        "full_product_name": {
          "name": "Firmware 2.18.0 installed on mbCONNECT24",
          "product_id": "CSAFPID-32001"
        },
        "product_reference": "CSAFPID-22001",
        "relates_to_product_reference": "CSAFPID-11001"
      },
      {
        "category": "installed_on",
        "full_product_name": {
          "name": "Firmware 2.18.0 installed on mymbCONNECT24",
          "product_id": "CSAFPID-32002"
        },
        "product_reference": "CSAFPID-22001",
        "relates_to_product_reference": "CSAFPID-11002"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2025-3090",
      "cwe": {
        "id": "CWE-306",
        "name": "Missing Authentication for Critical Function"
      },
      "notes": [
        {
          "audience": "all",
          "category": "description",
          "text": "An unauthenticated remote attacker can obtain limited sensitive information and/or DoS the device due to missing authentication for critical function.\n",
          "title": "Vulnerability Description"
        }
      ],
      "product_status": {
        "fixed": [
          "CSAFPID-32001",
          "CSAFPID-32002"
        ],
        "known_affected": [
          "CSAFPID-31001",
          "CSAFPID-31002"
        ]
      },
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "Update to latest version: 2.18.0",
          "group_ids": [
            "CSAFGID-0001"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 8.2,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "LOW",
            "environmentalScore": 8.2,
            "environmentalSeverity": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "temporalScore": 8.2,
            "temporalSeverity": "HIGH",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H",
            "version": "3.1"
          },
          "products": [
            "CSAFPID-31001",
            "CSAFPID-31002"
          ]
        }
      ],
      "title": "CVE-2025-3090"
    }
  ]
}


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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.