vde-2022-003
MEDIUM CVSS 6.5 csaf_beckhoffautomationgmbhcokg
Description
By tricking clients of the mentioned products into contacting malicious OPC UA servers and thereby acting as OPC UA clients, a crash of the component can be provoked.
Timeline
- Published
- 2022-03-01 12:34 UTC
- Last Modified
- 2025-06-05
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"
]
},
{
"organization": "OPC Foundation",
"summary": "reporting"
},
{
"organization": "Unified Automation",
"summary": "reporting"
}
],
"category": "csaf_security_advisory",
"csaf_version": "2.0",
"distribution": {
"tlp": {
"label": "WHITE",
"url": "https://www.first.org/tlp/"
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},
"lang": "en-GB",
"notes": [
{
"category": "summary",
"text": "By tricking clients of the mentioned products into contacting malicious OPC UA servers and thereby acting as OPC UA clients, a crash of the component can be provoked.",
"title": "Summary"
},
{
"category": "description",
"text": "The mentioned products can be used as clients which contact an OPC UA server. If such connection is made with SecurityMode=None for the connection then the client can receive a malformed message during the conversation which provokes a null pointer dereference within the OPC UA stack of the product. The product crashes then by memory access violation. Though this is uncommon and not recommended, such connections with SecurityMode=None may even be used by OPC UA Servers, for example if they act as client to register at a Discovery Server.",
"title": "Impact"
},
{
"category": "description",
"text": "Have your applications configured to use other than SecurityMode=None for all OPC UA connections. Avoid that these connect to an unknown OPC UA server with SecurityMode=None. In particular, avoid that your applications connect to servers which they discover via mDNS, a Local Discovery Server (LDS), an untrusted Global Discovery Server (GDS) or even trusted GDS using SecurityMode=none. Especially in the latter case an adversary might be able to apply the 'man in the middle' pattern to attack the connection and inject a bad message which triggers the vulnerability.",
"title": "Mitigation"
},
{
"category": "description",
"text": "Please update to a recent version of the affected product.",
"title": "Remediation"
}
],
"publisher": {
"category": "vendor",
"contact_details": "product-securityincident@beckhoff.com",
"name": "Beckhoff Automation GmbH & Co. KG",
"namespace": "https://www.beckhoff.com"
},
"references": [
{
"category": "self",
"summary": "VDE-2022-003: BECKHOFF: Null Pointer Dereference vulnerability in products with OPC UA technology - HTML",
"url": "https://certvde.com/en/advisories/VDE-2022-003/"
},
{
"category": "self",
"summary": "VDE-2022-003: BECKHOFF: Null Pointer Dereference vulnerability in products with OPC UA technology - CSAF",
"url": "https://beckhoff.csaf-tp.certvde.com/.well-known/csaf/white/2022/vde-2022-003.json"
},
{
"category": "external",
"summary": "Vendor PSIRT",
"url": "https://www.beckhoff.com"
},
{
"category": "external",
"summary": "CERT@VDE Security Advisories for Beckhoff Automation GmbH & Co. KG",
"url": "https://certvde.com/en/advisories/vendor/beckhoff/"
}
],
"title": "BECKHOFF: Null Pointer Dereference vulnerability in products with OPC UA technology",
"tracking": {
"aliases": [
"VDE-2022-003"
],
"current_release_date": "2025-06-05T13:28:13.000Z",
"generator": {
"date": "2025-05-08T11:17:51.310Z",
"engine": {
"name": "Secvisogram",
"version": "2.5.25"
}
},
"id": "VDE-2022-003",
"initial_release_date": "2022-03-01T12:34:00.000Z",
"revision_history": [
{
"date": "2022-03-01T12:34:00.000Z",
"number": "1",
"summary": "Initial revision."
},
{
"date": "2025-06-05T13:28:13.000Z",
"number": "2",
"summary": "Fix: quotation mark"
}
],
"status": "final",
"version": "2"
}
},
"product_tree": {
"branches": [
{
"branches": [
{
"branches": [
{
"branches": [
{
"category": "product_version_range",
"name": "<3.2.0.239",
"product": {
"name": "EK9160 (TcOpcUaServer) <3.2.0.239",
"product_id": "CSAFPID-51001"
}
}
],
"category": "product_name",
"name": "EK9160 (TcOpcUaServer)"
},
{
"branches": [
{
"category": "product_version_range",
"name": "<3.1.0.8",
"product": {
"name": "IPC Diagnostic UA Server on windows images (MDP UA Server) <3.1.0.8",
"product_id": "CSAFPID-51002"
}
}
],
"category": "product_name",
"name": "IPC Diagnostic UA Server on windows images (MDP UA Server)"
},
{
"branches": [
{
"category": "product_version_range",
"name": "<1.12.754.0",
"product": {
"name": "TF2110 (Setup) <1.12.754.0",
"product_id": "CSAFPID-51003"
}
}
],
"category": "product_name",
"name": "TF2110 (Setup)"
},
{
"branches": [
{
"category": "product_version_range",
"name": "<2.2.9.1",
"product": {
"name": "TF6100-OPC-UA-Client (TcOpcUaClient) <2.2.9.1",
"product_id": "CSAFPID-51004"
}
}
],
"category": "product_name",
"name": "TF6100-OPC-UA-Client (TcOpcUaClient)"
},
{
"branches": [
{
"category": "product_version_range",
"name": "<1.5.8.454",
"product": {
"name": "TF6100-OPC-UA-Gateway (TcOpcUaGateway) <1.5.8.454",
"product_id": "CSAFPID-51005"
}
}
],
"category": "product_name",
"name": "TF6100-OPC-UA-Gateway (TcOpcUaGateway)"
},
{
"branches": [
{
"category": "product_version_range",
"name": "<3.2.0.240",
"product": {
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"product_id": "CSAFPID-51006"
}
}
],
"category": "product_name",
"name": "TF6100-OPC-UA-Server (TcOpcUaServer)"
},
{
"branches": [
{
"category": "product_version_range",
"name": "<2.2.9.1",
"product": {
"name": "TS6100-0030-OPC-UA (TcOpcUaClient) <2.2.9.1",
"product_id": "CSAFPID-51007"
}
}
],
"category": "product_name",
"name": "TS6100-0030-OPC-UA (TcOpcUaClient)"
},
{
"branches": [
{
"category": "product_version_range",
"name": "<1.5.8.454",
"product": {
"name": "TS6100-0030-OPC-UA (TcOpcUaGateway) <1.5.8.454",
"product_id": "CSAFPID-51008"
}
}
],
"category": "product_name",
"name": "TS6100-0030-OPC-UA (TcOpcUaGateway)"
},
{
"branches": [
{
"category": "product_version_range",
"name": "<3.2.0.240",
"product": {
"name": "TS6100-0030-OPC-UA (TcOpcUaServer) <3.2.0.240",
"product_id": "CSAFPID-51009"
}
}
],
"category": "product_name",
"name": "TS6100-0030-OPC-UA (TcOpcUaServer)"
},
{
"branches": [
{
"category": "product_version_range",
"name": "<2.2.9.1",
"product": {
"name": "TS6100-OPC-UA (TcOpcUaClient) <2.2.9.1",
"product_id": "CSAFPID-510010"
}
}
],
"category": "product_name",
"name": "TS6100-OPC-UA (TcOpcUaClient)"
},
{
"branches": [
{
"category": "product_version_range",
"name": "<1.5.8.454",
"product": {
"name": "TS6100-OPC-UA (TcOpcUaGateway) <1.5.8.454",
"product_id": "CSAFPID-510011"
}
}
],
"category": "product_name",
"name": "TS6100-OPC-UA (TcOpcUaGateway)"
},
{
"branches": [
{
"category": "product_version_range",
"name": "<3.2.0.240",
"product": {
"name": "TS6100-OPC-UA (TcOpcUaServer) <3.2.0.240",
"product_id": "CSAFPID-510012"
}
}
],
"category": "product_name",
"name": "TS6100-OPC-UA (TcOpcUaServer)"
}
],
"category": "product_family",
"name": "Software"
}
],
"category": "vendor",
"name": "BECKHOFF"
}
],
"product_groups": [
{
"group_id": "CSAFGID-0001",
"product_ids": [
"CSAFPID-51001",
"CSAFPID-51002",
"CSAFPID-51003",
"CSAFPID-51004",
"CSAFPID-51005",
"CSAFPID-51006",
"CSAFPID-51007",
"CSAFPID-51008",
"CSAFPID-51009",
"CSAFPID-510010",
"CSAFPID-510011",
"CSAFPID-510012"
],
"summary": "Affected products."
}
]
},
"vulnerabilities": [
{
"cve": "CVE-2021-45117",
"cwe": {
"id": "CWE-476",
"name": "NULL Pointer Dereference"
},
"notes": [
{
"category": "description",
"text": "The OPC autogenerated ANSI C stack stubs (in the NodeSets) do not handle all error cases. This can lead to a NULL pointer dereference.",
"title": "Vulnerability Description"
}
],
"product_status": {
"known_affected": [
"CSAFPID-51001",
"CSAFPID-51002",
"CSAFPID-51003",
"CSAFPID-51004",
"CSAFPID-51005",
"CSAFPID-51006",
"CSAFPID-51007",
"CSAFPID-51008",
"CSAFPID-51009",
"CSAFPID-510010",
"CSAFPID-510011",
"CSAFPID-510012"
]
},
"remediations": [
{
"category": "mitigation",
"details": "Have your applications configured to use other than SecurityMode=None for all OPC UA connections. Avoid that these connect to an unknown OPC UA server with SecurityMode=None. In particular, avoid that your applications connect to servers which they discover via mDNS, a Local Discovery Server (LDS), an untrusted Global Discovery Server (GDS) or even trusted GDS using SecurityMode=none. Especially in the latter case an adversary might be able to apply the 'man in the middle' pattern to attack the connection and inject a bad message which triggers the vulnerability.",
"group_ids": [
"CSAFGID-0001"
]
},
{
"category": "vendor_fix",
"details": "Please update to a recent version of the affected product.",
"group_ids": [
"CSAFGID-0001"
]
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 6.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"environmentalScore": 6.5,
"environmentalSeverity": "MEDIUM",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"temporalScore": 6.5,
"temporalSeverity": "MEDIUM",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"products": [
"CSAFPID-51001",
"CSAFPID-51002",
"CSAFPID-51003",
"CSAFPID-51004",
"CSAFPID-51005",
"CSAFPID-51006",
"CSAFPID-51007",
"CSAFPID-51008",
"CSAFPID-51009",
"CSAFPID-510010",
"CSAFPID-510011",
"CSAFPID-510012"
]
}
],
"title": "CVE-2021-45117"
}
]
}