vde-2021-016
CRITICAL CVSS 9.8 csaf_weidmuellerinterfacegmbhcokg
Description
A network port intended only for device-internal usage is accidentally accessible via external network interfaces.
Timeline
- Published
- 2021-05-04 08:17 UTC
- Last Modified
- 2025-05-14
CVSS Details
CVSS details not available.
Affected Products
No product information available.
Weaknesses (CWE)
References
No references available.
Linked Vulnerabilities
No linked vulnerabilities found.
{
"document": {
"acknowledgments": [
{
"organization": "CERT@VDE",
"summary": "coordination",
"urls": [
"https://certvde.com"
]
}
],
"category": "csaf_security_advisory",
"csaf_version": "2.0",
"distribution": {
"tlp": {
"label": "WHITE",
"url": "https://www.first.org/tlp/"
}
},
"lang": "en-US",
"notes": [
{
"category": "summary",
"text": "A network port intended only for device-internal usage is accidentally accessible via external network interfaces.",
"title": "Summary"
},
{
"category": "description",
"text": "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.",
"title": "Impact"
},
{
"category": "description",
"text": "- Restrict access to the network th device is connected to\n- Do not directly connect the device to the internet",
"title": "Mitigation"
},
{
"category": "description",
"text": "Weidmüller 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 |",
"title": "Remediation"
}
],
"publisher": {
"category": "vendor",
"contact_details": "psirt@weidmueller.com",
"name": "Weidmueller Interface GmbH & Co. KG",
"namespace": "https://www.weidmueller.com"
},
"references": [
{
"category": "external",
"summary": "Weidmueller advisory overview at CERT@VDE",
"url": "https://certvde.com/en/advisories/vendor/weidmueller/"
},
{
"category": "self",
"summary": "VDE-2021-016: Weidmueller: Accidentally open network port in u-controls and IoT-Gateways - HTML",
"url": "https://certvde.com/en/advisories/VDE-2021-016"
},
{
"category": "self",
"summary": "VDE-2021-016: Weidmueller: Accidentally open network port in u-controls and IoT-Gateways - CSAF",
"url": "https://weidmueller.csaf-tp.certvde.com/.well-known/csaf/white/2021/vde-2021-016.json"
}
],
"title": "Weidmueller: Accidentally open network port in u-controls and IoT-Gateways",
"tracking": {
"aliases": [
"VDE-2021-016"
],
"current_release_date": "2025-05-14T12:28:19.000Z",
"generator": {
"date": "2025-01-23T08:43:12.153Z",
"engine": {
"name": "Secvisogram",
"version": "2.5.17"
}
},
"id": "VDE-2021-016",
"initial_release_date": "2021-05-04T08:17:00.000Z",
"revision_history": [
{
"date": "2021-05-04T08:17:00.000Z",
"number": "1",
"summary": "Initial revision."
},
{
"date": "2025-05-14T12:28:19.000Z",
"number": "2",
"summary": "Fix: version space, firmware category, added distribution"
}
],
"status": "final",
"version": "2"
}
},
"product_tree": {
"branches": [
{
"branches": [
{
"branches": [
{
"category": "product_name",
"name": "IOT-GW30",
"product": {
"name": "IOT-GW30",
"product_id": "CSAFPID-11001",
"product_identification_helper": {
"model_numbers": [
"1334990000"
]
}
}
},
{
"category": "product_name",
"name": "IOT-GW30-4G-EU",
"product": {
"name": "IOT-GW30-4G-EU",
"product_id": "CSAFPID-11002",
"product_identification_helper": {
"model_numbers": [
"1334990000"
]
}
}
},
{
"category": "product_name",
"name": "UC20-WL2000-AC",
"product": {
"name": "UC20-WL2000-AC",
"product_id": "CSAFPID-11003",
"product_identification_helper": {
"model_numbers": [
"1334950000"
]
}
}
},
{
"category": "product_name",
"name": "UC20-WL2000-IOT",
"product": {
"name": "UC20-WL2000-IOT",
"product_id": "CSAFPID-11004",
"product_identification_helper": {
"model_numbers": [
"1334990000"
]
}
}
}
],
"category": "product_family",
"name": "Hardware"
},
{
"branches": [
{
"category": "product_version_range",
"name": "1.3.0<=1.9.0",
"product": {
"name": "Firmware 1.3.0<=1.9.0",
"product_id": "CSAFPID-21001"
}
},
{
"category": "product_version_range",
"name": "1.10.0<=1.10.2",
"product": {
"name": "Firmware 1.10.0<=1.10.2",
"product_id": "CSAFPID-21002"
}
},
{
"category": "product_version",
"name": "1.11.0",
"product": {
"name": "Firmware 1.11.0",
"product_id": "CSAFPID-21003"
}
},
{
"category": "product_version",
"name": "1.12.1",
"product": {
"name": "Firmware 1.12.1",
"product_id": "CSAFPID-21004"
}
},
{
"category": "product_version",
"name": "1.9.1",
"product": {
"name": "Firmware 1.9.1",
"product_id": "CSAFPID-22001"
}
},
{
"category": "product_version",
"name": "1.10.3",
"product": {
"name": "Firmware 1.10.3",
"product_id": "CSAFPID-22002"
}
},
{
"category": "product_version",
"name": "1.12.3",
"product": {
"name": "Firmware 1.12.3",
"product_id": "CSAFPID-22003"
}
}
],
"category": "product_family",
"name": "Firmware"
}
],
"category": "vendor",
"name": "Weidmueller"
}
],
"product_groups": [
{
"group_id": "CSAFGID-0001",
"product_ids": [
"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"
],
"summary": "Affected Products."
},
{
"group_id": "CSAFGID-0002",
"product_ids": [
"CSAFPID-32001",
"CSAFPID-32002",
"CSAFPID-32003",
"CSAFPID-32004",
"CSAFPID-32005",
"CSAFPID-32006",
"CSAFPID-32007",
"CSAFPID-32008",
"CSAFPID-32009",
"CSAFPID-32010",
"CSAFPID-32011",
"CSAFPID-32012",
"CSAFPID-32013",
"CSAFPID-32014",
"CSAFPID-32015",
"CSAFPID-32016"
],
"summary": "Fixed Products"
}
],
"relationships": [
{
"category": "installed_on",
"full_product_name": {
"name": "Firmware 1.3.0<=1.9.0 installed on IOT-GW30",
"product_id": "CSAFPID-31001"
},
"product_reference": "CSAFPID-21001",
"relates_to_product_reference": "CSAFPID-11001"
},
{
"category": "installed_on",
"full_product_name": {
"name": "Firmware 1.10.0<=1.10.2 installed on IOT-GW30",
"product_id": "CSAFPID-31002"
},
"product_reference": "CSAFPID-21002",
"relates_to_product_reference": "CSAFPID-11001"
},
{
"category": "installed_on",
"full_product_name": {
"name": "Firmware 1.11.0 installed on IOT-GW30",
"product_id": "CSAFPID-31003"
},
"product_reference": "CSAFPID-21003",
"relates_to_product_reference": "CSAFPID-11001"
},
{
"category": "installed_on",
"full_product_name": {
"name": "Firmware 1.12.1 installed on IOT-GW30",
"product_id": "CSAFPID-31004"
},
"product_reference": "CSAFPID-21004",
"relates_to_product_reference": "CSAFPID-11001"
},
{
"category": "installed_on",
"full_product_name": {
"name": "Firmware 1.3.0<=1.9.0 installed on IOT-GW30-4G-EU",
"product_id": "CSAFPID-31005"
},
"product_reference": "CSAFPID-21001",
"relates_to_product_reference": "CSAFPID-11002"
},
{
"category": "installed_on",
"full_product_name": {
"name": "Firmware 1.10.0<=1.10.2 installed on IOT-GW30-4G-EU",
"product_id": "CSAFPID-31006"
},
"product_reference": "CSAFPID-21002",
"relates_to_product_reference": "CSAFPID-11002"
},
{
"category": "installed_on",
"full_product_name": {
"name": "Firmware 1.11.0 installed on IOT-GW30-4G-EU",
"product_id": "CSAFPID-31007"
},
"product_reference": "CSAFPID-21003",
"relates_to_product_reference": "CSAFPID-11002"
},
{
"category": "installed_on",
"full_product_name": {
"name": "Firmware 1.12.1 installed on IOT-GW30-4G-EU",
"product_id": "CSAFPID-31008"
},
"product_reference": "CSAFPID-21004",
"relates_to_product_reference": "CSAFPID-11002"
},
{
"category": "installed_on",
"full_product_name": {
"name": "Firmware 1.3.0<=1.9.0 installed on UC20-WL2000-AC",
"product_id": "CSAFPID-31009"
},
"product_reference": "CSAFPID-21001",
"relates_to_product_reference": "CSAFPID-11003"
},
{
"category": "installed_on",
"full_product_name": {
"name": "Firmware 1.10.0<=1.10.2 installed on UC20-WL2000-AC",
"product_id": "CSAFPID-31010"
},
"product_reference": "CSAFPID-21002",
"relates_to_product_reference": "CSAFPID-11003"
},
{
"category": "installed_on",
"full_product_name": {
"name": "Firmware 1.11.0 installed on UC20-WL2000-AC",
"product_id": "CSAFPID-31011"
},
"product_reference": "CSAFPID-21003",
"relates_to_product_reference": "CSAFPID-11003"
},
{
"category": "installed_on",
"full_product_name": {
"name": "Firmware 1.12.1 installed on UC20-WL2000-AC",
"product_id": "CSAFPID-31012"
},
"product_reference": "CSAFPID-21004",
"relates_to_product_reference": "CSAFPID-11003"
},
{
"category": "installed_on",
"full_product_name": {
"name": "Firmware 1.3.0<=1.9.0 installed on UC20-WL2000-IOT",
"product_id": "CSAFPID-31013"
},
"product_reference": "CSAFPID-21001",
"relates_to_product_reference": "CSAFPID-11004"
},
{
"category": "installed_on",
"full_product_name": {
"name": "Firmware 1.10.0<=1.10.2 installed on UC20-WL2000-IOT",
"product_id": "CSAFPID-31014"
},
"product_reference": "CSAFPID-21002",
"relates_to_product_reference": "CSAFPID-11004"
},
{
"category": "installed_on",
"full_product_name": {
"name": "Firmware 1.11.0 installed on UC20-WL2000-IOT",
"product_id": "CSAFPID-31015"
},
"product_reference": "CSAFPID-21003",
"relates_to_product_reference": "CSAFPID-11004"
},
{
"category": "installed_on",
"full_product_name": {
"name": "Firmware 1.12.1 installed on UC20-WL2000-IOT",
"product_id": "CSAFPID-31016"
},
"product_reference": "CSAFPID-21004",
"relates_to_product_reference": "CSAFPID-11004"
},
{
"category": "installed_on",
"full_product_name": {
"name": "Firmware 1.9.1 installed on IOT-GW30",
"product_id": "CSAFPID-32001"
},
"product_reference": "CSAFPID-22001",
"relates_to_product_reference": "CSAFPID-11001"
},
{
"category": "installed_on",
"full_product_name": {
"name": "Firmware 1.10.3 installed on IOT-GW30",
"product_id": "CSAFPID-32002"
},
"product_reference": "CSAFPID-22002",
"relates_to_product_reference": "CSAFPID-11001"
},
{
"category": "installed_on",
"full_product_name": {
"name": "Firmware 1.12.3 installed on IOT-GW30",
"product_id": "CSAFPID-32003"
},
"product_reference": "CSAFPID-22003",
"relates_to_product_reference": "CSAFPID-11001"
},
{
"category": "installed_on",
"full_product_name": {
"name": "Firmware 1.12.3 installed on IOT-GW30",
"product_id": "CSAFPID-32004"
},
"product_reference": "CSAFPID-22003",
"relates_to_product_reference": "CSAFPID-11001"
},
{
"category": "installed_on",
"full_product_name": {
"name": "Firmware 1.9.1 installed on IOT-GW30-4G-EU",
"product_id": "CSAFPID-32005"
},
"product_reference": "CSAFPID-22001",
"relates_to_product_reference": "CSAFPID-11002"
},
{
"category": "installed_on",
"full_product_name": {
"name": "Firmware 1.10.3 installed on IOT-GW30-4G-EU",
"product_id": "CSAFPID-32006"
},
"product_reference": "CSAFPID-22002",
"relates_to_product_reference": "CSAFPID-11002"
},
{
"category": "installed_on",
"full_product_name": {
"name": "Firmware 1.12.3 installed on IOT-GW30-4G-EU",
"product_id": "CSAFPID-32007"
},
"product_reference": "CSAFPID-22003",
"relates_to_product_reference": "CSAFPID-11002"
},
{
"category": "installed_on",
"full_product_name": {
"name": "Firmware 1.12.3 installed on IOT-GW30-4G-EU",
"product_id": "CSAFPID-32008"
},
"product_reference": "CSAFPID-22003",
"relates_to_product_reference": "CSAFPID-11002"
},
{
"category": "installed_on",
"full_product_name": {
"name": "Firmware 1.9.1 installed on UC20-WL2000-AC",
"product_id": "CSAFPID-32009"
},
"product_reference": "CSAFPID-22001",
"relates_to_product_reference": "CSAFPID-11003"
},
{
"category": "installed_on",
"full_product_name": {
"name": "Firmware 1.10.3 installed on UC20-WL2000-AC",
"product_id": "CSAFPID-32010"
},
"product_reference": "CSAFPID-22002",
"relates_to_product_reference": "CSAFPID-11003"
},
{
"category": "installed_on",
"full_product_name": {
"name": "Firmware 1.12.3 installed on UC20-WL2000-AC",
"product_id": "CSAFPID-32011"
},
"product_reference": "CSAFPID-22003",
"relates_to_product_reference": "CSAFPID-11003"
},
{
"category": "installed_on",
"full_product_name": {
"name": "Firmware 1.12.3 installed on UC20-WL2000-AC",
"product_id": "CSAFPID-32012"
},
"product_reference": "CSAFPID-22003",
"relates_to_product_reference": "CSAFPID-11003"
},
{
"category": "installed_on",
"full_product_name": {
"name": "Firmware 1.9.1 installed on UC20-WL2000-IOT",
"product_id": "CSAFPID-32013"
},
"product_reference": "CSAFPID-22001",
"relates_to_product_reference": "CSAFPID-11004"
},
{
"category": "installed_on",
"full_product_name": {
"name": "Firmware 1.10.3 installed on UC20-WL2000-IOT",
"product_id": "CSAFPID-32014"
},
"product_reference": "CSAFPID-22002",
"relates_to_product_reference": "CSAFPID-11004"
},
{
"category": "installed_on",
"full_product_name": {
"name": "Firmware 1.12.3 installed on UC20-WL2000-IOT",
"product_id": "CSAFPID-32015"
},
"product_reference": "CSAFPID-22003",
"relates_to_product_reference": "CSAFPID-11004"
},
{
"category": "installed_on",
"full_product_name": {
"name": "Firmware 1.12.3 installed on UC20-WL2000-IOT",
"product_id": "CSAFPID-32016"
},
"product_reference": "CSAFPID-22003",
"relates_to_product_reference": "CSAFPID-11004"
}
]
},
"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",
"CSAFPID-32004",
"CSAFPID-32005",
"CSAFPID-32006",
"CSAFPID-32007",
"CSAFPID-32008",
"CSAFPID-32009",
"CSAFPID-32010",
"CSAFPID-32011",
"CSAFPID-32012",
"CSAFPID-32013",
"CSAFPID-32014",
"CSAFPID-32015",
"CSAFPID-32016"
],
"known_affected": [
"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"
]
},
"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": "Weidmüller 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"
}
]
}