VDE-2021-058

Vulnerability from csaf_helmholzgmbhcokg - Published: 2021-12-08 13:04 - Updated: 2025-05-14 13:00
Summary
Helmholz: Remote user enumeration in myREX24/myREX24-virtual
Notes
Summary: An issue was discovered in the myREX24 and myREX24-virtual software in all versions through V2.9.0.
Remediation: Update myREX24/myREX24-virtual to 2.10.1
CVE-2021-34580
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CWE-204 - Observable Response Discrepancy
Vendor Fix Update myREX24/myREX24-virtual to 2.10.1
References
Acknowledgments
CERTVDE certvde.com
LEWA Attendorn GmbH lewa-attendorn.com
To clipboard 

{
  "document": {
    "acknowledgments": [
      {
        "organization": "CERTVDE",
        "summary": "coordination",
        "urls": [
          "https://certvde.com"
        ]
      },
      {
        "organization": "LEWA Attendorn GmbH",
        "summary": "reporting",
        "urls": [
          "https://lewa-attendorn.com"
        ]
      }
    ],
    "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 myREX24 and myREX24-virtual software in all versions through V2.9.0.",
        "title": "Summary"
      },
      {
        "category": "description",
        "text": "Update myREX24/myREX24-virtual to 2.10.1",
        "title": "Remediation"
      }
    ],
    "publisher": {
      "category": "vendor",
      "contact_details": "psirt@helmholz.de",
      "name": "Helmholz GmbH \u0026 Co. KG",
      "namespace": "https://www.helmholz.de"
    },
    "references": [
      {
        "category": "self",
        "summary": "VDE-2021-058: Helmholz: Remote user enumeration in myREX24/myREX24-virtual - HTML",
        "url": "https://certvde.com/de/advisories/VDE-2021-058/"
      },
      {
        "category": "external",
        "summary": "CERT@VDE Security Advisories for Helmholz GmbH \u0026 Co. KG",
        "url": "https://certvde.com/en/advisories/vendor/helmholz/"
      },
      {
        "category": "self",
        "summary": "VDE-2021-058: Helmholz: Remote user enumeration in myREX24/myREX24-virtual - CSAF",
        "url": "https://helmholz.csaf-tp.certvde.com/.well-known/csaf/white/2021/vde-2021-058.json"
      }
    ],
    "title": "Helmholz: Remote user enumeration in myREX24/myREX24-virtual",
    "tracking": {
      "aliases": [
        "VDE-2021-058"
      ],
      "current_release_date": "2025-05-14T13:00:14.000Z",
      "generator": {
        "date": "2025-03-05T11:50:43.266Z",
        "engine": {
          "name": "Secvisogram",
          "version": "2.5.18"
        }
      },
      "id": "VDE-2021-058",
      "initial_release_date": "2021-12-08T13:04:00.000Z",
      "revision_history": [
        {
          "date": "2021-12-08T13:04:00.000Z",
          "number": "1",
          "summary": "initial revision"
        },
        {
          "date": "2025-05-14T13:00:14.000Z",
          "number": "2",
          "summary": "Fix: added distribution"
        }
      ],
      "status": "final",
      "version": "2"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_name",
                "name": "myREX24",
                "product": {
                  "name": "myREX24",
                  "product_id": "CSAFPID-11001"
                }
              },
              {
                "category": "product_name",
                "name": "myREX24-virtual",
                "product": {
                  "name": "myREX24-virtual",
                  "product_id": "CSAFPID-11002"
                }
              }
            ],
            "category": "product_family",
            "name": "Hardware"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c=2.9.0",
                "product": {
                  "name": "Firmware \u003c=2.9.0",
                  "product_id": "CSAFPID-21001"
                }
              },
              {
                "category": "product_version",
                "name": "2.10.1",
                "product": {
                  "name": "Firmware 2.10.1",
                  "product_id": "CSAFPID-22001"
                }
              }
            ],
            "category": "product_family",
            "name": "Firmware"
          }
        ],
        "category": "vendor",
        "name": "Helmholz GmbH \u0026 Co. KG"
      }
    ],
    "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 \u003c=2.9.0 installed on myREX24",
          "product_id": "CSAFPID-31001"
        },
        "product_reference": "CSAFPID-21001",
        "relates_to_product_reference": "CSAFPID-11001"
      },
      {
        "category": "installed_on",
        "full_product_name": {
          "name": "Firmware 2.10.1 installed on myREX24",
          "product_id": "CSAFPID-32001"
        },
        "product_reference": "CSAFPID-22001",
        "relates_to_product_reference": "CSAFPID-11001"
      },
      {
        "category": "installed_on",
        "full_product_name": {
          "name": "Firmware \u003c=2.9.0 installed on myREX24-virtual",
          "product_id": "CSAFPID-31002"
        },
        "product_reference": "CSAFPID-21001",
        "relates_to_product_reference": "CSAFPID-11002"
      },
      {
        "category": "installed_on",
        "full_product_name": {
          "name": "Firmware 2.10.1 installed on myREX24-virtual",
          "product_id": "CSAFPID-32002"
        },
        "product_reference": "CSAFPID-22001",
        "relates_to_product_reference": "CSAFPID-11002"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2021-34580",
      "cwe": {
        "id": "CWE-204",
        "name": "Observable Response Discrepancy"
      },
      "notes": [
        {
          "category": "summary",
          "text": "An unauthenticated user can enumerate valid backend users by checking what kind of response the server sends for crafted invalid login attempts."
        }
      ],
      "product_status": {
        "fixed": [
          "CSAFPID-32001",
          "CSAFPID-32002"
        ],
        "known_affected": [
          "CSAFPID-31001",
          "CSAFPID-31002"
        ]
      },
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "Update myREX24/myREX24-virtual 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-31001",
            "CSAFPID-31002"
          ]
        }
      ],
      "title": "CVE-2021-34580"
    }
  ]
}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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