vde-2021-037

{
  "document": {
    "acknowledgments": [
      {
        "organization": "CERT@VDE",
        "summary": "coordination",
        "urls": [
          "https://certvde.com"
        ]
      },
      {
        "organization": "LEWA Attendorn GmbH",
        "summary": "reporting."
      }
    ],
    "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 issue was discovered in the mymbCONNECT24 and mbCONNECT24 software in all versions through V2.9.0.",
        "title": "Summary"
      },
      {
        "category": "description",
        "text": "Please consult the CVE Entry above.",
        "title": "Impact"
      },
      {
        "category": "description",
        "text": "Update mbCONNECT24/mymbCONNECT24 to 2.10.1",
        "title": "Remediation"
      }
    ],
    "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 advisory overview at CERT@VDE",
        "url": "https://certvde.com/de/advisories/vendor/mbconnectline/"
      },
      {
        "category": "self",
        "summary": "VDE-2021-037: MB connect line: Remote user enumeration in mbCONNECT24/mymbCONNECT24 - HTML",
        "url": "https://certvde.com/en/advisories/VDE-2021-037"
      },
      {
        "category": "self",
        "summary": "VDE-2021-037: MB connect line: Remote user enumeration in mbCONNECT24/mymbCONNECT24 - CSAF",
        "url": "https://mbconnectline.csaf-tp.certvde.com/.well-known/csaf/white/2021/vde-2021-037.json"
      }
    ],
    "title": "MB connect line: Remote user enumeration in mbCONNECT24/mymbCONNECT24",
    "tracking": {
      "aliases": [
        "VDE-2021-037"
      ],
      "current_release_date": "2025-05-14T12:28:19.000Z",
      "generator": {
        "date": "2025-03-21T11:49:51.085Z",
        "engine": {
          "name": "Secvisogram",
          "version": "2.5.21"
        }
      },
      "id": "VDE-2021-037",
      "initial_release_date": "2021-10-27T10:15:00.000Z",
      "revision_history": [
        {
          "date": "2021-10-27T10:15:00.000Z",
          "number": "1",
          "summary": "Initial revision."
        },
        {
          "date": "2025-05-14T12:28:19.000Z",
          "number": "2",
          "summary": "Fix: firmware category"
        }
      ],
      "status": "final",
      "version": "2"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "branches": [
                  {
                    "category": "product_version_range",
                    "name": "<=2.9.0",
                    "product": {
                      "name": "mbCONNECT24 <=2.9.0",
                      "product_id": "CSAFPID-51001"
                    }
                  },
                  {
                    "category": "product_version",
                    "name": "2.10.1",
                    "product": {
                      "name": "mbCONNECT24 2.10.1",
                      "product_id": "CSAFPID-52001"
                    }
                  }
                ],
                "category": "product_name",
                "name": "mbCONNECT24"
              },
              {
                "branches": [
                  {
                    "category": "product_version_range",
                    "name": "<=2.9.0",
                    "product": {
                      "name": "mymbCONNECT24 <=2.9.0",
                      "product_id": "CSAFPID-51002"
                    }
                  },
                  {
                    "category": "product_version",
                    "name": "2.10.1",
                    "product": {
                      "name": "mymbCONNECT24 2.10.1",
                      "product_id": "CSAFPID-52002"
                    }
                  }
                ],
                "category": "product_name",
                "name": "mymbCONNECT24"
              }
            ],
            "category": "product_family",
            "name": "Software"
          }
        ],
        "category": "vendor",
        "name": "MB connect line"
      }
    ],
    "product_groups": [
      {
        "group_id": "CSAFGID-0001",
        "product_ids": [
          "CSAFPID-51001",
          "CSAFPID-51002"
        ],
        "summary": "Affected Products."
      },
      {
        "group_id": "CSAFGID-0002",
        "product_ids": [
          "CSAFPID-52001",
          "CSAFPID-52002"
        ],
        "summary": "Fixed Products."
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2021-34580",
      "cwe": {
        "id": "CWE-204",
        "name": "Observable Response Discrepancy"
      },
      "notes": [
        {
          "category": "description",
          "text": "An unauthenticated user can enumerate valid backend users by checking what kind of response the server sends for crafted invalid login attempts.",
          "title": "Vulnerability Description"
        }
      ],
      "product_status": {
        "fixed": [
          "CSAFPID-52001",
          "CSAFPID-52002"
        ],
        "known_affected": [
          "CSAFPID-51001",
          "CSAFPID-51002"
        ]
      },
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "Update mbCONNECT24/mymbCONNECT24 to 2.10.1",
          "group_ids": [
            "CSAFGID-0001"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "environmentalScore": 7.5,
            "environmentalSeverity": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "temporalScore": 7.5,
            "temporalSeverity": "HIGH",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
            "version": "3.1"
          },
          "products": [
            "CSAFPID-51001",
            "CSAFPID-51002"
          ]
        }
      ],
      "title": "CVE-2021-34580"
    }
  ]
}