Vulnerability-Lookup

VDE-2022-011

Vulnerability from csaf_mbconnectlinegmbh - Published: 2022-09-07 12:50 - Updated: 2022-09-07 12:50

Summary

MB connect line: Unauthenticated user enumeration in mbCONNECT24 and mymbCONNECT24

Notes

Summary: An issue was discovered in the mymbCONNECT24 and mbCONNECT24 software in all versions through V2.11.2.

Impact: A remote, unauthenticated attacker can enumerate valid users with a timing attack against the webserver.

Remediation: Update to Version 2.12.1

CVE-2022-22520

5.3 (Medium)


                
                  CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

CWE-204 - Observable Response Discrepancy

Vendor Fix Update to Version 2.12.1

Affected products

Known affected 2 products

Product	Identifier	Version	Remediation
Unresolved product id: CSAFPID-31001		—
Unresolved product id: CSAFPID-31002		—

Fixed 2 products

Product	Identifier	Version	Remediation
Unresolved product id: CSAFPID-32001		—
Unresolved product id: CSAFPID-32002		—

References

3 references

URL	Category
https://certvde.com/de/advisories/VDE-2022-011/	self
https://certvde.com/en/advisories/vendor/mbconnectline/	external
https://mbconnectline.csaf-tp.certvde.com/.well-k…	self

Acknowledgments

CERTVDE certvde.com

SySS GmBH www.syss.de

Helmholz www.helmholz.de

JSON

To clipboard

{
  "document": {
    "acknowledgments": [
      {
        "organization": "CERTVDE",
        "summary": "coordination",
        "urls": [
          "https://certvde.com"
        ]
      },
      {
        "organization": "SySS GmBH",
        "summary": "reporting",
        "urls": [
          "https://www.syss.de"
        ]
      },
      {
        "organization": "Helmholz",
        "summary": "reporting",
        "urls": [
          "https://www.helmholz.de"
        ]
      }
    ],
    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
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      "tlp": {
        "label": "WHITE",
        "url": "https://www.first.org/tlp/"
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    },
    "lang": "en-GB",
    "notes": [
      {
        "category": "summary",
        "text": "An issue was discovered in the mymbCONNECT24 and mbCONNECT24 software in all versions through V2.11.2.",
        "title": "Summary"
      },
      {
        "category": "description",
        "text": "A remote, unauthenticated attacker can enumerate valid users with a timing attack against the webserver.",
        "title": "Impact"
      },
      {
        "category": "description",
        "text": "Update to Version 2.12.1",
        "title": "Remediation"
      }
    ],
    "publisher": {
      "category": "vendor",
      "contact_details": "security-team@mbconnectline.de",
      "name": "MB connect line GmbH",
      "namespace": "https://mbconnectline.com"
    },
    "references": [
      {
        "category": "self",
        "summary": "VDE-2022-011: MB connect line: Unauthenticated user enumeration in mbCONNECT24 and mymbCONNECT24 - HTML",
        "url": "https://certvde.com/de/advisories/VDE-2022-011/"
      },
      {
        "category": "external",
        "summary": "CERT@VDE Security Advisories for ",
        "url": "https://certvde.com/en/advisories/vendor/mbconnectline/"
      },
      {
        "category": "self",
        "summary": "VDE-2022-011: MB connect line: Unauthenticated user enumeration in mbCONNECT24 and mymbCONNECT24 - CSAF",
        "url": "https://mbconnectline.csaf-tp.certvde.com/.well-known/csaf/white/2022/vde-2022-011.json"
      }
    ],
    "title": "MB connect line: Unauthenticated user enumeration in mbCONNECT24 and mymbCONNECT24",
    "tracking": {
      "aliases": [
        "VDE-2022-011"
      ],
      "current_release_date": "2022-09-07T12:50:00.000Z",
      "generator": {
        "date": "2025-03-21T11:47:01.298Z",
        "engine": {
          "name": "Secvisogram",
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      },
      "id": "VDE-2022-011",
      "initial_release_date": "2022-09-07T12:50:00.000Z",
      "revision_history": [
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          "date": "2022-09-07T12:50:00.000Z",
          "number": "1",
          "summary": "initial revision"
        }
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      "status": "final",
      "version": "1"
    }
  },
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            "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": "Hardware"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c=2.11.2",
                "product": {
                  "name": "Firmware \u003c=2.11.2",
                  "product_id": "CSAFPID-21001"
                }
              },
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                "category": "product_version",
                "name": "2.12.1",
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                }
              }
            ],
            "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 \u003c=2.11.2 installed on mbCONNECT24",
          "product_id": "CSAFPID-31001"
        },
        "product_reference": "CSAFPID-21001",
        "relates_to_product_reference": "CSAFPID-11001"
      },
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      },
      {
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        "full_product_name": {
          "name": "Firmware \u003c=2.11.2 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 2.12.1 installed on mymbCONNECT24",
          "product_id": "CSAFPID-32002"
        },
        "product_reference": "CSAFPID-22001",
        "relates_to_product_reference": "CSAFPID-11002"
      }
    ]
  },
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      "cwe": {
        "id": "CWE-204",
        "name": "Observable Response Discrepancy"
      },
      "notes": [
        {
          "category": "summary",
          "text": "A remote, unauthenticated attacker can enumerate valid users by sending specific requests to the webservice of MB connect line mymbCONNECT24, mbCONNECT24 and Helmholz myREX24 and myREX24.virtual in all versions through v2.11.2."
        }
      ],
      "product_status": {
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          "CSAFPID-32002"
        ],
        "known_affected": [
          "CSAFPID-31001",
          "CSAFPID-31002"
        ]
      },
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "Update to Version 2.12.1",
          "group_ids": [
            "CSAFGID-0001"
          ]
        }
      ],
      "scores": [
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            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "environmentalScore": 5.3,
            "environmentalSeverity": "MEDIUM",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "temporalScore": 5.3,
            "temporalSeverity": "MEDIUM",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
            "version": "3.1"
          },
          "products": [
            "CSAFPID-31001",
            "CSAFPID-31002"
          ]
        }
      ],
      "title": "CVE-2022-22520"
    }
  ]
}

CVE-2022-22520 (GCVE-0-2022-22520)

Vulnerability from cvelistv5 – Published: 2022-09-14 14:05 – Updated: 2024-09-17 04:14

Title

User enumeration vulnerability in MB connect line and Helmholz products

Summary

A remote, unauthenticated attacker can enumerate valid users by sending specific requests to the webservice of MB connect line mymbCONNECT24, mbCONNECT24 and Helmholz myREX24 and myREX24.virtual in all versions through v2.11.2.

Severity

5.3 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

CWE

CWE-204 - Response Discrepancy Information Exposure

Assigner

CERTVDE icscert root

References

2 references

URL	Tags
https://cert.vde.com/en/advisories/VDE-2022-039	x_refsource_CONFIRM
https://cert.vde.com/en/advisories/VDE-2022-011	x_refsource_CONFIRM

Impacted products

4 products

Vendor	Product	Version
MB connect line	mymbCONNECT24	Affected: 2 , ≤ 2.11.2 (custom)
MB connect line	mbCONNECT24	Affected: 2 , ≤ 2.11.2 (custom)
Helmholz	myREX24	Affected: 2 , ≤ 2.11.2 (custom)
Helmholz	myREX24.virtual	Affected: 2 , ≤ 2.11.2 (custom)

Date Public

2022-09-07 00:00

Credits

SySS GmbH reported this vulnerability to Helmholz. Helmholz reported this vulnerability to MB connect line. CERT@VDE coordinated with Helmholz & MB connect line.

Show details on NVD website

JSON

To clipboard

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    ],
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}

Sightings

Author	Source	Type	Date	Other

Nomenclature

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.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.