Vulnerability-Lookup

VDE-2021-016

Vulnerability from csaf_weidmuellerinterfacegmbhcokg - Published: 2021-05-04 08:17 - Updated: 2025-05-14 12:28

Summary

Weidmueller: Accidentally open network port in u-controls and IoT-Gateways

Notes

Summary: A network port intended only for device-internal usage is accidentally accessible via external network interfaces.

Impact: The reported vulnerability allows an attacker who has network access and knowledge about the internal configuration protocol to read and write configuration data without prior authorization. By exploiting this vulnerability the attacker potentially is able to manipulate or stop the operation of the device.

Mitigation: - Restrict access to the network th device is connected to - Do not directly connect the device to the internet

Remediation: Weidmüller recommends upgrading affected devices to the current firmware version 1.12.3 or higher which fixes this vulnerability. Alternatively the following firmware versions which fix this vulnerability may be installed: | **Product** | **Affected (installed) firmware version** | **Fixed firmware version** | |-----------------------|-----------------------------------------------|--------------------------------| | Any affected product | 1.3.0 - 1.9.0 | 1.9.1 | | Any affected product | 1.10.1, 1.10.2 | 1.10.3 | | Any affected product | 1.10.0, 1.11.0, 1.12.1 | 1.12.3 |

CVE-2021-20999

In Weidmueller u-controls and IoT-Gateways in versions up to 1.12.1 a network port intended only for device-internal usage is accidentally accessible via external network interfaces. By exploiting this vulnerability the device may be manipulated or the operation may be stopped.

9.8 (Critical)


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

CWE-668 - Exposure of Resource to Wrong Sphere

Mitigation Restrict access to the network th device is connected to Do not directly connect the device to the internet

Vendor Fix Weidmüller recommends upgrading affected devices to the current firmware version 1.12.3 or higher which fixes this vulnerability. Alternatively the following firmware versions which fix this vulnerability may be installed: | **Product** | **Affected (installed) firmware version** | **Fixed firmware version** | |-----------------------|-----------------------------------------------|--------------------------------| | Any affected product | 1.3.0 - 1.9.0 | 1.9.1 | | Any affected product | 1.10.1, 1.10.2 | 1.10.3 | | Any affected product | 1.10.0, 1.11.0, 1.12.1 | 1.12.3 |

References

URL

Category

	https://certvde.com/en/advisories/vendor/weidmueller/	external
	https://certvde.com/en/advisories/VDE-2021-016	self
	https://weidmueller.csaf-tp.certvde.com/.well-kno…	self

Acknowledgments

CERT@VDE certvde.com

JSON

To clipboard

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  "vulnerabilities": [
    {
      "cve": "CVE-2021-20999",
      "cwe": {
        "id": "CWE-668",
        "name": "Exposure of Resource to Wrong Sphere"
      },
      "notes": [
        {
          "category": "description",
          "text": "In Weidmueller u-controls and IoT-Gateways in versions up to 1.12.1 a network port intended only for device-internal usage is accidentally accessible via external network interfaces. By exploiting this vulnerability the device may be manipulated or the operation may be stopped.",
          "title": "Vulnerability Description"
        }
      ],
      "product_status": {
        "fixed": [
          "CSAFPID-32001",
          "CSAFPID-32002",
          "CSAFPID-32003",
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          "CSAFPID-32012",
          "CSAFPID-32013",
          "CSAFPID-32014",
          "CSAFPID-32015",
          "CSAFPID-32016"
        ],
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          "CSAFPID-31002",
          "CSAFPID-31003",
          "CSAFPID-31004",
          "CSAFPID-31005",
          "CSAFPID-31006",
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          "CSAFPID-31008",
          "CSAFPID-31009",
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          "CSAFPID-31012",
          "CSAFPID-31013",
          "CSAFPID-31014",
          "CSAFPID-31015",
          "CSAFPID-31016"
        ]
      },
      "remediations": [
        {
          "category": "mitigation",
          "details": "Restrict access to the network th device is connected to\nDo not directly connect the device to the internet",
          "group_ids": [
            "CSAFGID-0001"
          ]
        },
        {
          "category": "vendor_fix",
          "details": "Weidm\u00fcller recommends upgrading affected devices to the current firmware version 1.12.3 or higher which fixes this vulnerability.\n\nAlternatively the following firmware versions which fix this vulnerability may be installed:\n\n| **Product**          | **Affected (installed) firmware version** | **Fixed firmware version** |\n|-----------------------|-----------------------------------------------|--------------------------------|\n| Any affected product | 1.3.0 - 1.9.0                                 | 1.9.1                         |\n| Any affected product | 1.10.1, 1.10.2                                | 1.10.3                        |\n| Any affected product | 1.10.0, 1.11.0, 1.12.1                        | 1.12.3                        |\n",
          "group_ids": [
            "CSAFGID-0001"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 9.8,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "environmentalScore": 9.8,
            "environmentalSeverity": "CRITICAL",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "temporalScore": 9.8,
            "temporalSeverity": "CRITICAL",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "products": [
            "CSAFPID-31001",
            "CSAFPID-31002",
            "CSAFPID-31003",
            "CSAFPID-31004",
            "CSAFPID-31005",
            "CSAFPID-31006",
            "CSAFPID-31007",
            "CSAFPID-31008",
            "CSAFPID-31009",
            "CSAFPID-31010",
            "CSAFPID-31011",
            "CSAFPID-31012",
            "CSAFPID-31013",
            "CSAFPID-31014",
            "CSAFPID-31015",
            "CSAFPID-31016"
          ]
        }
      ],
      "title": "CVE-2021-20999"
    }
  ]
}

CVE-2021-20999 (GCVE-0-2021-20999)

Vulnerability from cvelistv5 – Published: 2021-05-13 13:45 – Updated: 2024-09-17 01:16

Title

WEIDMUELLER: Accidentally open network port in u-controls and IoT-Gateways

Summary

In Weidmüller u-controls and IoT-Gateways in versions up to 1.12.1 a network port intended only for device-internal usage is accidentally accessible via external network interfaces. By exploiting this vulnerability the device may be manipulated or the operation may be stopped.

Severity ?

9.4 (Critical)


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

CWE

CWE-668 - Exposure of Resource to Wrong Sphere

Assigner

CERTVDE

References

URL

Tags

https://cert.vde.com/en-us/advisories/vde-2021-016

x_refsource_CONFIRM

Impacted products

Vendor

Product

Version

Weidmüller

UC20-WL2000-AC (No. 1334950000)

Affected: 1.3.0 , ≤ 1.9.0 (custom)
Affected: 1.10.0 , ≤ 1.10.2 (custom)
Affected: 1.11.0 , ≤ 1.12.1 (custom)

Weidmüller	UC20-WL2000-IOT (No. 1334990000)	Affected: 1.3.0 , ≤ 1.9.0 (custom) Affected: 1.10.0 , ≤ 1.10.2 (custom) Affected: 1.11.0 , ≤ 1.12.1 (custom)
Weidmüller	IOT-GW30 (No. 2682620000)	Affected: 1.3.0 , ≤ 1.9.0 (custom) Affected: 1.10.0 , ≤ 1.10.2 (custom) Affected: 1.11.0 , ≤ 1.12.1 (custom)
Weidmüller	IOT-GW30-4G-EU (No. 2682630000)	Affected: 1.3.0 , ≤ 1.9.0 (custom) Affected: 1.10.0 , ≤ 1.10.2 (custom) Affected: 1.11.0 , ≤ 1.12.1 (custom)

Date Public ?

2021-05-04 00:00

Credits

Reported by Weidmüller.

Show details on NVD website

JSON

To clipboard

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Sightings

Author	Source	Type	Date

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.

Action not permitted

VDE-2021-016

CVE-2021-20999 (GCVE-0-2021-20999)

Tags

Sightings

Nomenclature