vde-2022-009
HIGH CVSS 7.8 csaf_wagogmbhcokg
Description
The Linux kernel starting from 5.8 has a flaw which can lead to privilege escalation for a local user. The kernel is used in several Versions of the FW of several WAGO products. All vulnerable PLCs are listed in chapter 'Affected Products'.
Timeline
- Published
- 2022-04-06 07:30 UTC
- Last Modified
- 2025-05-22
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-GB",
"notes": [
{
"category": "summary",
"text": "The Linux kernel starting from 5.8 has a flaw which can lead to privilege escalation for a local user. The kernel is used in several Versions of the FW of several WAGO products. All vulnerable PLCs are listed in chapter 'Affected Products'.",
"title": "Summary"
},
{
"category": "description",
"text": "An unprivileged user can use the 'pipe' functionality in the Linux kernel to write to read only files. This can lead to privilege escalation, because in this way unprivileged processes can inject code into root processes.\nFor a detailed description of the vulnerability see https://dirtypipe.cm4all.com/",
"title": "Impact"
},
{
"category": "description",
"text": "- Restrict network access to the device.\n- Use strong passwords\n- Do not directly connect the device to the internet\n- Disable unused TCP/UDP-ports",
"title": "Mitigation"
},
{
"category": "description",
"text": "We recommend all affected users to update to the firmware version listed below.\n\n## Series WAGO PFC100/PFC200 and WAGO Compact Controller CC100\n\n| Product | Fixed in Firmware Version |\n|----------------------|----------------------------|\n| 750-81xx/xxx-xxx | 03.09.04(21) |\n| 750-8217/xxx-xxx | 03.09.05(21) |\n| 750-82xx/xxx-xxx | 03.09.04(21) |\n| 751-9301 | 03.09.04(21) |\n\n## Series WAGO Touch Panel 600 and WAGO Edge Controller\n\n| Product | Fixed in Firmware Version |\n|----------------------|----------------------------|\n| 762-4xxx | 03.07.19(19) |\n| 762-5xxx | 03.07.19(19) |\n| 762-6xxx | 03.07.19(19) |\n| 752-8303/8000-002 | 03.07.19(19) |",
"title": "Remediation"
}
],
"publisher": {
"category": "vendor",
"contact_details": "psirt@wago.com",
"name": "WAGO GmbH & Co. KG",
"namespace": "https://www.wago.com/psirt"
},
"references": [
{
"category": "self",
"summary": "VDE-2022-009: WAGO: Multiple Products affected by Linux Kernel Vulnerability Dirty Pipe - HTML",
"url": "https://certvde.com/en/advisories/VDE-2022-009/"
},
{
"category": "self",
"summary": "VDE-2022-009: WAGO: Multiple Products affected by Linux Kernel Vulnerability Dirty Pipe - CSAF",
"url": "https://wago.csaf-tp.certvde.com/.well-known/csaf/white/2022/vde-2022-009.json"
},
{
"category": "external",
"summary": "Vendor PSIRT",
"url": "https://www.wago.com/psirt"
},
{
"category": "external",
"summary": "CERT@VDE Security Advisories for WAGO GmbH & Co. KG",
"url": "https://certvde.com/en/advisories/vendor/wago/"
}
],
"title": "WAGO: Multiple Products affected by Linux Kernel Vulnerability Dirty Pipe",
"tracking": {
"aliases": [
"VDE-2022-009"
],
"current_release_date": "2025-05-22T13:03:10.000Z",
"generator": {
"date": "2025-04-28T09:51:56.908Z",
"engine": {
"name": "Secvisogram",
"version": "2.5.24"
}
},
"id": "VDE-2022-009",
"initial_release_date": "2022-04-06T07:30:00.000Z",
"revision_history": [
{
"date": "2022-04-06T07:30:00.000Z",
"number": "1",
"summary": "Initial revision."
},
{
"date": "2025-05-22T13:03:10.000Z",
"number": "2",
"summary": "Fix: quotation mark"
}
],
"status": "final",
"version": "2"
}
},
"product_tree": {
"branches": [
{
"branches": [
{
"branches": [
{
"category": "product_name",
"name": "750-81xx/xxx-xxx",
"product": {
"name": "750-81xx/xxx-xxx",
"product_id": "CSAFPID-11001"
}
},
{
"category": "product_name",
"name": "750-8217/xxx-xxx",
"product": {
"name": "750-8217/xxx-xxx",
"product_id": "CSAFPID-11002"
}
},
{
"category": "product_name",
"name": "750-82xx/xxx-xxx",
"product": {
"name": "750-82xx/xxx-xxx",
"product_id": "CSAFPID-11003"
}
},
{
"category": "product_name",
"name": "751-9301",
"product": {
"name": "751-9301",
"product_id": "CSAFPID-11004"
}
},
{
"category": "product_name",
"name": "752-8303/8000-002",
"product": {
"name": "752-8303/8000-002",
"product_id": "CSAFPID-11005"
}
},
{
"category": "product_name",
"name": "762-4xxx",
"product": {
"name": "762-4xxx",
"product_id": "CSAFPID-11006"
}
},
{
"category": "product_name",
"name": "762-5xxx",
"product": {
"name": "762-5xxx",
"product_id": "CSAFPID-11007"
}
},
{
"category": "product_name",
"name": "762-6xxx",
"product": {
"name": "762-6xxx",
"product_id": "CSAFPID-11008"
}
}
],
"category": "product_family",
"name": "Hardware"
},
{
"branches": [
{
"category": "product_version_range",
"name": "03.08.07(20)<=03.08.08(20)",
"product": {
"name": "Firmware 03.08.07(20)<=03.08.08(20)",
"product_id": "CSAFPID-21001"
}
},
{
"category": "product_version_range",
"name": "03.07.14(19)<=03.07.18(19)",
"product": {
"name": "Firmware 03.07.14(19)<=03.07.18(19)",
"product_id": "CSAFPID-21002"
}
},
{
"category": "product_version_range",
"name": "03.07.14(19)<=03.08.08(20)",
"product": {
"name": "Firmware 03.07.14(19)<=03.08.08(20)",
"product_id": "CSAFPID-21003"
}
},
{
"category": "product_version",
"name": "03.09.04(21)",
"product": {
"name": "Firmware 03.09.04(21)",
"product_id": "CSAFPID-22001"
}
},
{
"category": "product_version",
"name": "03.09.05(21)",
"product": {
"name": "Firmware 03.09.05(21)",
"product_id": "CSAFPID-22002"
}
},
{
"category": "product_version",
"name": "03.07.19(19)",
"product": {
"name": "Firmware 03.07.19(19)",
"product_id": "CSAFPID-22003"
}
}
],
"category": "product_family",
"name": "Firmware"
}
],
"category": "vendor",
"name": "WAGO"
}
],
"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"
],
"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"
],
"summary": "Fixed products."
}
],
"relationships": [
{
"category": "installed_on",
"full_product_name": {
"name": "Firmware 03.07.14(19)<=03.07.18(19) installed on 750-81xx/xxx-xxx",
"product_id": "CSAFPID-31001"
},
"product_reference": "CSAFPID-21002",
"relates_to_product_reference": "CSAFPID-11001"
},
{
"category": "installed_on",
"full_product_name": {
"name": "Firmware 03.08.07(20)<=03.08.08(20) installed on 750-81xx/xxx-xxx",
"product_id": "CSAFPID-31002"
},
"product_reference": "CSAFPID-21001",
"relates_to_product_reference": "CSAFPID-11001"
},
{
"category": "installed_on",
"full_product_name": {
"name": "Firmware 03.07.14(19)<=03.07.18(19) installed on 750-8217/xxx-xxx",
"product_id": "CSAFPID-31003"
},
"product_reference": "CSAFPID-21002",
"relates_to_product_reference": "CSAFPID-11002"
},
{
"category": "installed_on",
"full_product_name": {
"name": "Firmware 03.08.07(20)<=03.08.08(20) installed on 750-8217/xxx-xxx",
"product_id": "CSAFPID-31004"
},
"product_reference": "CSAFPID-21001",
"relates_to_product_reference": "CSAFPID-11002"
},
{
"category": "installed_on",
"full_product_name": {
"name": "Firmware 03.07.14(19)<=03.07.18(19) installed on 750-82xx/xxx-xxx",
"product_id": "CSAFPID-31005"
},
"product_reference": "CSAFPID-21002",
"relates_to_product_reference": "CSAFPID-11003"
},
{
"category": "installed_on",
"full_product_name": {
"name": "Firmware 03.08.07(20)<=03.08.08(20) installed on 750-82xx/xxx-xxx",
"product_id": "CSAFPID-31006"
},
"product_reference": "CSAFPID-21001",
"relates_to_product_reference": "CSAFPID-11003"
},
{
"category": "installed_on",
"full_product_name": {
"name": "Firmware 03.08.07(20)<=03.08.08(20) installed on 751-9301",
"product_id": "CSAFPID-31007"
},
"product_reference": "CSAFPID-21001",
"relates_to_product_reference": "CSAFPID-11004"
},
{
"category": "installed_on",
"full_product_name": {
"name": "Firmware 03.07.14(19)<=03.07.18(19) installed on 752-8303/8000-002",
"product_id": "CSAFPID-31008"
},
"product_reference": "CSAFPID-21002",
"relates_to_product_reference": "CSAFPID-11005"
},
{
"category": "installed_on",
"full_product_name": {
"name": "Firmware 03.07.14(19)<=03.07.18(19) installed on 762-4xxx",
"product_id": "CSAFPID-31009"
},
"product_reference": "CSAFPID-21002",
"relates_to_product_reference": "CSAFPID-11006"
},
{
"category": "installed_on",
"full_product_name": {
"name": "Firmware 03.07.14(19)<=03.07.18(19) installed on 762-5xxx",
"product_id": "CSAFPID-31010"
},
"product_reference": "CSAFPID-21002",
"relates_to_product_reference": "CSAFPID-11007"
},
{
"category": "installed_on",
"full_product_name": {
"name": "Firmware 03.07.14(19)<=03.07.18(19) installed on 762-6xxx",
"product_id": "CSAFPID-31011"
},
"product_reference": "CSAFPID-21002",
"relates_to_product_reference": "CSAFPID-11008"
},
{
"category": "installed_on",
"full_product_name": {
"name": "Firmware 03.09.04(21) installed on 750-81xx/xxx-xxx",
"product_id": "CSAFPID-32001"
},
"product_reference": "CSAFPID-22001",
"relates_to_product_reference": "CSAFPID-11001"
},
{
"category": "installed_on",
"full_product_name": {
"name": "Firmware 03.09.04(21) installed on 750-8217/xxx-xxx",
"product_id": "CSAFPID-32002"
},
"product_reference": "CSAFPID-22001",
"relates_to_product_reference": "CSAFPID-11002"
},
{
"category": "installed_on",
"full_product_name": {
"name": "Firmware 03.09.04(21) installed on 750-82xx/xxx-xxx",
"product_id": "CSAFPID-32003"
},
"product_reference": "CSAFPID-22001",
"relates_to_product_reference": "CSAFPID-11003"
},
{
"category": "installed_on",
"full_product_name": {
"name": "Firmware 03.09.04(21) installed on 751-9301",
"product_id": "CSAFPID-32004"
},
"product_reference": "CSAFPID-22001",
"relates_to_product_reference": "CSAFPID-11004"
},
{
"category": "installed_on",
"full_product_name": {
"name": "Firmware 03.07.19(19) installed on 752-8303/8000-002",
"product_id": "CSAFPID-32005"
},
"product_reference": "CSAFPID-22003",
"relates_to_product_reference": "CSAFPID-11005"
},
{
"category": "installed_on",
"full_product_name": {
"name": "Firmware 03.07.19(19) installed on 762-4xxx",
"product_id": "CSAFPID-32006"
},
"product_reference": "CSAFPID-22003",
"relates_to_product_reference": "CSAFPID-11006"
},
{
"category": "installed_on",
"full_product_name": {
"name": "Firmware 03.07.19(19) installed on 762-5xxx",
"product_id": "CSAFPID-32007"
},
"product_reference": "CSAFPID-22003",
"relates_to_product_reference": "CSAFPID-11007"
},
{
"category": "installed_on",
"full_product_name": {
"name": "Firmware 03.07.19(19) installed on 762-6xxx",
"product_id": "CSAFPID-32008"
},
"product_reference": "CSAFPID-22003",
"relates_to_product_reference": "CSAFPID-11008"
}
]
},
"vulnerabilities": [
{
"cve": "CVE-2022-0847",
"cwe": {
"id": "CWE-665",
"name": "Improper Initialization"
},
"notes": [
{
"category": "description",
"text": "A flaw was found in the way the \"flags\" member of the new pipe buffer structure was lacking proper initialization in copy_page_to_iter_pipe and push_pipe functions in the Linux kernel and could thus contain stale values. An unprivileged local user could use this flaw to write to pages in the page cache backed by read only files and as such escalate their privileges on the system.",
"title": "Vulnerability Description"
}
],
"product_status": {
"fixed": [
"CSAFPID-32001",
"CSAFPID-32002",
"CSAFPID-32003",
"CSAFPID-32004",
"CSAFPID-32005",
"CSAFPID-32006",
"CSAFPID-32007",
"CSAFPID-32008"
],
"known_affected": [
"CSAFPID-31001",
"CSAFPID-31002",
"CSAFPID-31003",
"CSAFPID-31004",
"CSAFPID-31005",
"CSAFPID-31006",
"CSAFPID-31007",
"CSAFPID-31008",
"CSAFPID-31009",
"CSAFPID-31010",
"CSAFPID-31011"
]
},
"remediations": [
{
"category": "mitigation",
"details": "- Restrict network access to the device.\n- Use strong passwords\n- Do not directly connect the device to the internet\n- Disable unused TCP/UDP-ports",
"group_ids": [
"CSAFGID-0001"
]
},
{
"category": "vendor_fix",
"details": "We recommend all affected users to update to the firmware version listed below.\n\n## Series WAGO PFC100/PFC200 and WAGO Compact Controller CC100\n\n| Product | Fixed in Firmware Version |\n|----------------------|----------------------------|\n| 750-81xx/xxx-xxx | 03.09.04(21) |\n| 750-8217/xxx-xxx | 03.09.05(21) |\n| 750-82xx/xxx-xxx | 03.09.04(21) |\n| 751-9301 | 03.09.04(21) |\n\n## Series WAGO Touch Panel 600 and WAGO Edge Controller\n\n| Product | Fixed in Firmware Version |\n|----------------------|----------------------------|\n| 762-4xxx | 03.07.19(19) |\n| 762-5xxx | 03.07.19(19) |\n| 762-6xxx | 03.07.19(19) |\n| 752-8303/8000-002 | 03.07.19(19) |",
"group_ids": [
"CSAFGID-0001"
]
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 7.8,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"environmentalScore": 7.8,
"environmentalSeverity": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"temporalScore": 7.8,
"temporalSeverity": "HIGH",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/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"
]
}
],
"title": "CVE-2022-0847"
}
]
}