ICSA-18-058-01A
Vulnerability from csaf_cisa
Published
2018-02-22 00:00
Modified
2020-02-10 00:00
Summary
Siemens SIMATIC Industrial PCs (Update A)
Notes
General Recommendations
As a general security measure, Siemens strongly recommends to protect network access to devices with appropriate mechanisms. In order to operate the devices in a protected IT environment, Siemens recommends to configure the environment according to Siemens' operational guidelines for Industrial Security (Download: https://www.siemens.com/cert/operational-guidelines-industrial-security), and to follow the recommendations in the product manuals.
Additional Resources
Additional information on Industrial Security by Siemens can be found at: https://www.siemens.com/industrialsecurity
Terms of Use
Siemens Security Advisories are subject to the terms and conditions contained in Siemens' underlying license terms or other applicable agreements previously agreed to with Siemens (hereinafter "License Terms"). To the extent applicable to information, software or documentation made available in or through a Siemens Security Advisory, the Terms of Use of Siemens' Global Website (https://www.siemens.com/terms_of_use, hereinafter "Terms of Use"), in particular Sections 8-10 of the Terms of Use, shall apply additionally. In case of conflicts, the License Terms shall prevail over the Terms of Use.
Legal Notice
All information products included in https://us-cert.cisa.gov/ics are provided "as is" for informational purposes only. The Department of Homeland Security (DHS) does not provide any warranties of any kind regarding any information contained within. DHS does not endorse any commercial product or service, referenced in this product or otherwise. Further dissemination of this product is governed by the Traffic Light Protocol (TLP) marking in the header. For more information about TLP, see https://us-cert.cisa.gov/tlp/.
Advisory Conversion Disclaimer
This CISA CSAF advisory was converted from a Siemens ProductCERT's advisory.
Critical infrastructure sectors
Multiple
Countries/areas deployed
Worldwide
Company headquarters location
Germany
Recommended Practices
CISA recommends users take defensive measures to minimize the exploitation risk of this vulnerability.
Recommended Practices
Minimize network exposure for all control system devices and/or systems, and ensure they are not accessible from the internet.
Recommended Practices
Locate control system networks and remote devices behind firewalls and isolate them from business networks.
Recommended Practices
When remote access is required, use more secure methods, such as Virtual Private Networks (VPNs), recognizing VPNs may have vulnerabilities and should be updated to the most recent version available. Also recognize VPN is only as secure as its connected devices.
Recommended Practices
CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures.
Recommended Practices
CISA also provides a section for control systems security recommended practices on the ICS webpage on cisa.gov. Several CISA products detailing cyber defense best practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies.
Recommended Practices
CISA encourages organizations to implement recommended cybersecurity strategies for proactive defense of ICS assets. Additional mitigation guidance and recommended practices are publicly available on the ICS webpage at cisa.gov in the technical information paper, ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation Strategies.
Recommended Practices
Organizations observing suspected malicious activity should follow established internal procedures and report findings to CISA for tracking and correlation against other incidents.
{
"document": {
"acknowledgments": [
{
"organization": "Siemens ProductCERT",
"summary": "reporting this vulnerability to CISA."
},
{
"names": [
"Artem Zinenko"
],
"organization": "Kaspersky",
"summary": "for pointing out that SIPLUS should also be mentioned"
}
],
"category": "csaf_security_advisory",
"csaf_version": "2.0",
"distribution": {
"text": "Disclosure is not limited",
"tlp": {
"label": "WHITE",
"url": "https://us-cert.cisa.gov/tlp/"
}
},
"lang": "en",
"notes": [
{
"category": "general",
"text": "As a general security measure, Siemens strongly recommends to protect network access to devices with appropriate mechanisms. In order to operate the devices in a protected IT environment, Siemens recommends to configure the environment according to Siemens\u0027 operational guidelines for Industrial Security (Download: https://www.siemens.com/cert/operational-guidelines-industrial-security), and to follow the recommendations in the product manuals.",
"title": "General Recommendations"
},
{
"category": "general",
"text": "Additional information on Industrial Security by Siemens can be found at: https://www.siemens.com/industrialsecurity",
"title": "Additional Resources"
},
{
"category": "legal_disclaimer",
"text": "Siemens Security Advisories are subject to the terms and conditions contained in Siemens\u0027 underlying license terms or other applicable agreements previously agreed to with Siemens (hereinafter \"License Terms\"). To the extent applicable to information, software or documentation made available in or through a Siemens Security Advisory, the Terms of Use of Siemens\u0027 Global Website (https://www.siemens.com/terms_of_use, hereinafter \"Terms of Use\"), in particular Sections 8-10 of the Terms of Use, shall apply additionally. In case of conflicts, the License Terms shall prevail over the Terms of Use.",
"title": "Terms of Use"
},
{
"category": "legal_disclaimer",
"text": "All information products included in https://us-cert.cisa.gov/ics are provided \"as is\" for informational purposes only. The Department of Homeland Security (DHS) does not provide any warranties of any kind regarding any information contained within. DHS does not endorse any commercial product or service, referenced in this product or otherwise. Further dissemination of this product is governed by the Traffic Light Protocol (TLP) marking in the header. For more information about TLP, see https://us-cert.cisa.gov/tlp/.",
"title": "Legal Notice"
},
{
"category": "other",
"text": "This CISA CSAF advisory was converted from a Siemens ProductCERT\u0027s advisory.",
"title": "Advisory Conversion Disclaimer"
},
{
"category": "other",
"text": "Multiple",
"title": "Critical infrastructure sectors"
},
{
"category": "other",
"text": "Worldwide",
"title": "Countries/areas deployed"
},
{
"category": "other",
"text": "Germany",
"title": "Company headquarters location"
},
{
"category": "general",
"text": "CISA recommends users take defensive measures to minimize the exploitation risk of this vulnerability.",
"title": "Recommended Practices"
},
{
"category": "general",
"text": "Minimize network exposure for all control system devices and/or systems, and ensure they are not accessible from the internet.",
"title": "Recommended Practices"
},
{
"category": "general",
"text": "Locate control system networks and remote devices behind firewalls and isolate them from business networks.",
"title": "Recommended Practices"
},
{
"category": "general",
"text": "When remote access is required, use more secure methods, such as Virtual Private Networks (VPNs), recognizing VPNs may have vulnerabilities and should be updated to the most recent version available. Also recognize VPN is only as secure as its connected devices.",
"title": "Recommended Practices"
},
{
"category": "general",
"text": "CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures.",
"title": "Recommended Practices"
},
{
"category": "general",
"text": "CISA also provides a section for control systems security recommended practices on the ICS webpage on cisa.gov. Several CISA products detailing cyber defense best practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies.",
"title": "Recommended Practices"
},
{
"category": "general",
"text": "CISA encourages organizations to implement recommended cybersecurity strategies for proactive defense of ICS assets. Additional mitigation guidance and recommended practices are publicly available on the ICS webpage at cisa.gov in the technical information paper, ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation Strategies.",
"title": "Recommended Practices"
},
{
"category": "general",
"text": "Organizations observing suspected malicious activity should follow established internal procedures and report findings to CISA for tracking and correlation against other incidents.",
"title": "Recommended Practices"
}
],
"publisher": {
"category": "other",
"contact_details": "central@cisa.dhs.gov",
"name": "CISA",
"namespace": "https://www.cisa.gov/"
},
"references": [
{
"category": "self",
"summary": "SSA-470231: TPM Vulnerability in SIMATIC IPCs - HTML Version",
"url": "https://cert-portal.siemens.com/productcert/html/ssa-470231.html"
},
{
"category": "self",
"summary": "ICS Advisory ICSA-18-058-01A JSON",
"url": "https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/OT/white/2018/icsa-18-058-01a.json"
},
{
"category": "self",
"summary": "ICS Advisory ICSA-18-058-01A - Web Version",
"url": "https://www.cisa.gov/news-events/ics-advisories/icsa-18-058-01a"
},
{
"category": "external",
"summary": "Recommended Practices",
"url": "https://www.cisa.gov/uscert/ics/alerts/ICS-ALERT-10-301-01"
},
{
"category": "external",
"summary": "Recommended Practices",
"url": "https://www.cisa.gov/resources-tools/resources/ics-recommended-practices"
},
{
"category": "external",
"summary": "Recommended Practices",
"url": "https://www.cisa.gov/topics/industrial-control-systems"
},
{
"category": "external",
"summary": "Recommended Practices",
"url": "https://us-cert.cisa.gov/sites/default/files/recommended_practices/NCCIC_ICS-CERT_Defense_in_Depth_2016_S508C.pdf"
},
{
"category": "external",
"summary": "Recommended Practices",
"url": "https://www.cisa.gov/sites/default/files/publications/Cybersecurity_Best_Practices_for_Industrial_Control_Systems.pdf"
},
{
"category": "external",
"summary": "Recommended Practices",
"url": "https://www.cisa.gov/uscert/ics/tips/ICS-TIP-12-146-01B"
}
],
"title": "Siemens SIMATIC Industrial PCs (Update A)",
"tracking": {
"current_release_date": "2020-02-10T00:00:00.000000Z",
"generator": {
"engine": {
"name": "CISA CSAF Generator",
"version": "1.0.0"
}
},
"id": "ICSA-18-058-01A",
"initial_release_date": "2018-02-22T00:00:00.000000Z",
"revision_history": [
{
"date": "2018-02-22T00:00:00.000000Z",
"legacy_version": "1.0",
"number": "1",
"summary": "Publication Date"
},
{
"date": "2018-03-15T00:00:00.000000Z",
"legacy_version": "1.1",
"number": "2",
"summary": "Update for IPC547G"
},
{
"date": "2020-02-10T00:00:00.000000Z",
"legacy_version": "1.2",
"number": "3",
"summary": "SIPLUS devices now explicitly mentioned in the list of affected products"
}
],
"status": "final",
"version": "3"
}
},
"product_tree": {
"branches": [
{
"branches": [
{
"branches": [
{
"category": "product_version_range",
"name": "\u003cBIOS_V22.01.04",
"product": {
"name": "Siemens SIMATIC Field-PG M5: BIOS \u003c V22.01.04",
"product_id": "CSAFPID-0001"
}
}
],
"category": "product_name",
"name": "SIMATIC Field-PG M5"
},
{
"branches": [
{
"category": "product_version_range",
"name": "\u003cBIOS_V20.01.10",
"product": {
"name": "Siemens SIMATIC IPC227E: BIOS \u003c V20.01.10",
"product_id": "CSAFPID-0002"
}
}
],
"category": "product_name",
"name": "SIMATIC IPC227E"
},
{
"branches": [
{
"category": "product_version_range",
"name": "\u003cBIOS_V20.01.10",
"product": {
"name": "Siemens SIMATIC IPC277E: BIOS \u003c V20.01.10",
"product_id": "CSAFPID-0003"
}
}
],
"category": "product_name",
"name": "SIMATIC IPC277E"
},
{
"branches": [
{
"category": "product_version_range",
"name": "\u003cBIOS_V21.01.07",
"product": {
"name": "Siemens SIMATIC IPC427E (incl. SIPLUS variants): BIOS \u003c V21.01.07",
"product_id": "CSAFPID-0004"
}
}
],
"category": "product_name",
"name": "SIMATIC IPC427E (incl. SIPLUS variants)"
},
{
"branches": [
{
"category": "product_version_range",
"name": "\u003cBIOS_V21.01.07",
"product": {
"name": "Siemens SIMATIC IPC477E: BIOS \u003c V21.01.07",
"product_id": "CSAFPID-0005"
}
}
],
"category": "product_name",
"name": "SIMATIC IPC477E"
},
{
"branches": [
{
"category": "product_version_range",
"name": "\u003cBIOS_R1.21.0",
"product": {
"name": "Siemens SIMATIC IPC547G: BIOS \u003c R1.21.0",
"product_id": "CSAFPID-0006"
}
}
],
"category": "product_name",
"name": "SIMATIC IPC547G"
},
{
"branches": [
{
"category": "product_version_range",
"name": "\u003cBIOS_V23.01.03",
"product": {
"name": "Siemens SIMATIC ITP1000: BIOS \u003c V23.01.03",
"product_id": "CSAFPID-0007"
}
}
],
"category": "product_name",
"name": "SIMATIC ITP1000"
}
],
"category": "vendor",
"name": "Siemens"
}
]
},
"vulnerabilities": [
{
"cve": "CVE-2017-15361",
"cwe": {
"id": "CWE-325",
"name": "Missing Cryptographic Step"
},
"notes": [
{
"category": "summary",
"text": "The Infineon RSA library in Infineon Trusted Platform Module (TPM) firmware creates RSA keys which might be susceptible to the ROCA attack, possibly exposing the private key of a RSA key pair.",
"title": "Summary"
}
],
"product_status": {
"known_affected": [
"CSAFPID-0001",
"CSAFPID-0002",
"CSAFPID-0003",
"CSAFPID-0004",
"CSAFPID-0005",
"CSAFPID-0006",
"CSAFPID-0007"
]
},
"remediations": [
{
"category": "mitigation",
"details": "Only RSA key pairs generated by the TPM are affected by this vulnerability. Rekeying of the TPM by using other cryptograhpic algorithms (e.g. ECC), using 3936-bit RSA keys, or importing RSA keys to the TPM that are generated by other systems help mitigate the security vulnerability.",
"product_ids": [
"CSAFPID-0001",
"CSAFPID-0002",
"CSAFPID-0003",
"CSAFPID-0004",
"CSAFPID-0005",
"CSAFPID-0006",
"CSAFPID-0007"
]
},
{
"category": "vendor_fix",
"details": "Update BIOS to V22.01.04 https://support.industry.siemens.com/cs/ww/en/view/109738122",
"product_ids": [
"CSAFPID-0001"
]
},
{
"category": "vendor_fix",
"details": "Update BIOS to V20.01.10 https://support.industry.siemens.com/cs/ww/en/view/109481715",
"product_ids": [
"CSAFPID-0002",
"CSAFPID-0003"
]
},
{
"category": "vendor_fix",
"details": "Update BIOS to V21.01.07 https://support.industry.siemens.com/cs/ww/en/view/109742593",
"product_ids": [
"CSAFPID-0004",
"CSAFPID-0005"
]
},
{
"category": "vendor_fix",
"details": "Update BIOS to R1.21.0 https://support.industry.siemens.com/cs/ww/en/view/109750349",
"product_ids": [
"CSAFPID-0006"
]
},
{
"category": "vendor_fix",
"details": "Update BIOS to V23.01.03 https://support.industry.siemens.com/cs/ww/en/view/109748173",
"product_ids": [
"CSAFPID-0007"
]
}
],
"scores": [
{
"cvss_v3": {
"baseScore": 5.9,
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N/E:P/RL:O/RC:C",
"version": "3.1"
},
"products": [
"CSAFPID-0001",
"CSAFPID-0002",
"CSAFPID-0003",
"CSAFPID-0004",
"CSAFPID-0005",
"CSAFPID-0006",
"CSAFPID-0007"
]
}
],
"title": "CVE-2017-15361"
}
]
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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