icsa-20-343-04
Vulnerability from csaf_cisa
Published
2020-12-08 00:00
Modified
2020-12-08 00:00
Summary
Schneider Electric Modicon M221 Programmable Logic Controller
Notes
CISA Disclaimer
This CSAF advisory was extracted from unstructured data and may contain inaccuracies. If you notice any errors, please reach out to the designated contact at CISA CSAF: central@cisa.dhs.gov
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/.
Risk evaluation
Successful exploitation of these vulnerabilities could allow an attacker to take control over the PLC and gain unauthorized access, which could result in exposure of sensitive information.
Critical infrastructure sectors
Commercial Facilities, Energy, Food and Agriculture, Government Facilities, Transportation Systems, Water and Wastewater Systems
Countries/areas deployed
Worldwide
Company headquarters location
France
Recommended Practices
CISA recommends users take defensive measures to minimize the risk of exploitation of this vulnerability. CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures.
CISA also provides a section for control systems security recommended practices on the ICS webpage onus-cert.cisa.gov. Several recommended practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies.
Recommended Practices
Additional mitigation guidance and recommended practices are publicly available on the ICS webpage on us-cert.cisa.gov in the Technical Information Paper, ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation Strategies.
Organizations observing any suspected malicious activity should follow their established internal procedures and report their findings to CISA for tracking and correlation against other incidents.
Recommended Practices
CISA also recommends users take the following measures to protect themselves from social engineering attacks:
Exploitability
No known public exploits specifically target these vulnerabilities. High skill level is needed to exploit.
{
"document": {
"acknowledgments": [
{
"names": [
"Yehuda Anikster",
"Rei Henigman"
],
"organization": "Claroty",
"summary": "reporting these vulnerabilities to Schneider Electric"
},
{
"names": [
"Seok Min Lim",
"Bryon Kaan"
],
"organization": "Trustwave",
"summary": "reporting these vulnerabilities to Schneider Electric"
}
],
"category": "csaf_security_advisory",
"csaf_version": "2.0",
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"lang": "en-US",
"notes": [
{
"category": "general",
"text": "This CSAF advisory was extracted from unstructured data and may contain inaccuracies. If you notice any errors, please reach out to the designated contact at CISA CSAF: central@cisa.dhs.gov",
"title": "CISA Disclaimer"
},
{
"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": "summary",
"text": "Successful exploitation of these vulnerabilities could allow an attacker to take control over the PLC and gain unauthorized access, which could result in exposure of sensitive information.",
"title": "Risk evaluation"
},
{
"category": "other",
"text": "Commercial Facilities, Energy, Food and Agriculture, Government Facilities, Transportation Systems, Water and Wastewater Systems",
"title": "Critical infrastructure sectors"
},
{
"category": "other",
"text": "Worldwide",
"title": "Countries/areas deployed"
},
{
"category": "other",
"text": "France",
"title": "Company headquarters location"
},
{
"category": "general",
"text": "CISA recommends users take defensive measures to minimize the risk of exploitation of this vulnerability. CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures.\nCISA also provides a section for control systems security recommended practices on the ICS webpage onus-cert.cisa.gov. Several recommended practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies.",
"title": "Recommended Practices"
},
{
"category": "general",
"text": "Additional mitigation guidance and recommended practices are publicly available on the ICS webpage on us-cert.cisa.gov in the Technical Information Paper, ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation Strategies.\nOrganizations observing any suspected malicious activity should follow their established internal procedures and report their findings to CISA for tracking and correlation against other incidents.",
"title": "Recommended Practices"
},
{
"category": "general",
"text": "CISA also recommends users take the following measures to protect themselves from social engineering attacks:",
"title": "Recommended Practices"
},
{
"category": "other",
"text": "No known public exploits specifically target these vulnerabilities. High skill level is needed to exploit.",
"title": "Exploitability"
}
],
"publisher": {
"category": "coordinator",
"contact_details": "Email: CISAservicedesk@cisa.dhs.gov;\n Toll Free: 1-888-282-0870",
"name": "CISA",
"namespace": "https://www.cisa.gov/"
},
"references": [
{
"category": "self",
"summary": "ICS Advisory ICSA-20-343-04 JSON",
"url": "https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/OT/white/2020/icsa-20-343-04.json"
},
{
"category": "self",
"summary": "ICS Advisory ICSA-20-343-04 Web Version",
"url": "https://www.cisa.gov/news-events/ics-advisories/icsa-20-343-04"
},
{
"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://us-cert.cisa.gov/ics/tips/ICS-TIP-12-146-01B"
},
{
"category": "external",
"summary": "Recommended Practices",
"url": "https://us-cert.cisa.gov/ncas/tips/ST04-014"
}
],
"title": "Schneider Electric Modicon M221 Programmable Logic Controller",
"tracking": {
"current_release_date": "2020-12-08T00:00:00.000000Z",
"generator": {
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"revision_history": [
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"number": "1",
"summary": "ICSA-20-343-04 Schneider Electric Modicon M221 Programmable Logic Controller"
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"product_tree": {
"branches": [
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"branches": [
{
"branches": [
{
"category": "product_version",
"name": "vers:all/*",
"product": {
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"product_id": "CSAFPID-0001"
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"category": "product_name",
"name": "Modicon M221"
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],
"category": "vendor",
"name": "Schneider Electric Software, LLC"
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},
"vulnerabilities": [
{
"cve": "CVE-2020-7565",
"cwe": {
"id": "CWE-326",
"name": "Inadequate Encryption Strength"
},
"notes": [
{
"category": "summary",
"text": "An inadequate encryption strength vulnerability exists that could allow the attacker to break the encryption key when the attacker has captured the traffic between EcoStruxure Machine - Basic software and Modicon M221 controller.CVE-2020-7565 has been assigned to this vulnerability. A CVSS v3 base score of 7.1 has been calculated; the CVSS vector string is (AV:A/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H).",
"title": "Vulnerability Summary"
}
],
"product_status": {
"known_affected": [
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]
},
"references": [
{
"category": "external",
"summary": "web.nvd.nist.gov",
"url": "http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2020-7565"
},
{
"category": "external",
"summary": "www.first.org",
"url": "https://www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:A/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H"
}
],
"remediations": [
{
"category": "mitigation",
"details": "Set up network segmentation and implement a firewall to block all unauthorized access to Port 502/TCP.",
"product_ids": [
"CSAFPID-0001"
]
},
{
"category": "vendor_fix",
"details": "Within the Modicon M221 application, the user must: Disable all unused protocols, especially programming protocol, as described in section \u201cConfiguring Ethernet Network\u201d of EcoStruxure Machine Expert - Basic online help for the M221 PLC. This action will prevent unintended remote programming access.;Set a password to protect the project.;Set a password for read access on the controller.;Set a different password for write access on the controller.",
"product_ids": [
"CSAFPID-0001"
]
},
{
"category": "mitigation",
"details": "Locate control and safety system networks and remote devices behind firewalls and isolate them from the business network.",
"product_ids": [
"CSAFPID-0001"
]
},
{
"category": "mitigation",
"details": "Install physical controls so no unauthorized personnel can access industrial control and safety systems, components, peripheral equipment, and networks.",
"product_ids": [
"CSAFPID-0001"
]
},
{
"category": "mitigation",
"details": "Place all controllers in locked cabinets and never leave them in the \u201cProgram\u201d mode.",
"product_ids": [
"CSAFPID-0001"
]
},
{
"category": "mitigation",
"details": "Never connect programming software to any network other than the network for which the devices were intended.",
"product_ids": [
"CSAFPID-0001"
]
},
{
"category": "mitigation",
"details": "Scan all methods of mobile data exchange with the isolated network (e.g., CDs, USB drives, etc.) before use in the terminals or any node connected to these networks.",
"product_ids": [
"CSAFPID-0001"
]
},
{
"category": "mitigation",
"details": "Never allow mobile devices that have connected to any other network, besides the intended network, to connect to the safety or control networks without proper sanitation.",
"product_ids": [
"CSAFPID-0001"
]
},
{
"category": "mitigation",
"details": "Minimize network exposure for all control system devices and systems and ensure that they are not accessible from the Internet.",
"product_ids": [
"CSAFPID-0001"
]
},
{
"category": "mitigation",
"details": "When remote access is required, use secure methods such as virtual private networks (VPNs). Recognize that VPNs may have vulnerabilities and should be updated to the most current version available. Also, understand that VPNs are only as secure as the connected devices.",
"product_ids": [
"CSAFPID-0001"
]
},
{
"category": "mitigation",
"details": "For more information refer to the Schneider Electric Recommended Cybersecurity Best Practices document.",
"product_ids": [
"CSAFPID-0001"
],
"url": "https://www.se.com/us/en/download/document/7EN52-0390/"
},
{
"category": "mitigation",
"details": "Refer to Schneider Electric\u0027s security bulletin SEVD-2020-315-05 for specific mitigation details.",
"product_ids": [
"CSAFPID-0001"
],
"url": "https://www.se.com/ww/en/download/document/SEVD-2020-315-05/"
}
],
"scores": [
{
"cvss_v3": {
"baseScore": 7.1,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.0/AV:A/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H",
"version": "3.0"
},
"products": [
"CSAFPID-0001"
]
}
]
},
{
"cve": "CVE-2020-7566",
"cwe": {
"id": "CWE-334",
"name": "Small Space of Random Values"
},
"notes": [
{
"category": "summary",
"text": "A small space of random values vulnerability exists that could allow the attacker to break the encryption keys when the attacker has captured the traffic between EcoStruxure Machine - Basic software and Modicon M221 controller.CVE-2020-7566 has been assigned to this vulnerability. A CVSS v3 base score of 7.1 has been calculated; the CVSS vector string is (AV:A/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H).",
"title": "Vulnerability Summary"
}
],
"product_status": {
"known_affected": [
"CSAFPID-0001"
]
},
"references": [
{
"category": "external",
"summary": "web.nvd.nist.gov",
"url": "http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2020-7566"
},
{
"category": "external",
"summary": "www.first.org",
"url": "https://www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:A/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H"
}
],
"remediations": [
{
"category": "mitigation",
"details": "Set up network segmentation and implement a firewall to block all unauthorized access to Port 502/TCP.",
"product_ids": [
"CSAFPID-0001"
]
},
{
"category": "vendor_fix",
"details": "Within the Modicon M221 application, the user must: Disable all unused protocols, especially programming protocol, as described in section \u201cConfiguring Ethernet Network\u201d of EcoStruxure Machine Expert - Basic online help for the M221 PLC. This action will prevent unintended remote programming access.;Set a password to protect the project.;Set a password for read access on the controller.;Set a different password for write access on the controller.",
"product_ids": [
"CSAFPID-0001"
]
},
{
"category": "mitigation",
"details": "Locate control and safety system networks and remote devices behind firewalls and isolate them from the business network.",
"product_ids": [
"CSAFPID-0001"
]
},
{
"category": "mitigation",
"details": "Install physical controls so no unauthorized personnel can access industrial control and safety systems, components, peripheral equipment, and networks.",
"product_ids": [
"CSAFPID-0001"
]
},
{
"category": "mitigation",
"details": "Place all controllers in locked cabinets and never leave them in the \u201cProgram\u201d mode.",
"product_ids": [
"CSAFPID-0001"
]
},
{
"category": "mitigation",
"details": "Never connect programming software to any network other than the network for which the devices were intended.",
"product_ids": [
"CSAFPID-0001"
]
},
{
"category": "mitigation",
"details": "Scan all methods of mobile data exchange with the isolated network (e.g., CDs, USB drives, etc.) before use in the terminals or any node connected to these networks.",
"product_ids": [
"CSAFPID-0001"
]
},
{
"category": "mitigation",
"details": "Never allow mobile devices that have connected to any other network, besides the intended network, to connect to the safety or control networks without proper sanitation.",
"product_ids": [
"CSAFPID-0001"
]
},
{
"category": "mitigation",
"details": "Minimize network exposure for all control system devices and systems and ensure that they are not accessible from the Internet.",
"product_ids": [
"CSAFPID-0001"
]
},
{
"category": "mitigation",
"details": "When remote access is required, use secure methods such as virtual private networks (VPNs). Recognize that VPNs may have vulnerabilities and should be updated to the most current version available. Also, understand that VPNs are only as secure as the connected devices.",
"product_ids": [
"CSAFPID-0001"
]
},
{
"category": "mitigation",
"details": "For more information refer to the Schneider Electric Recommended Cybersecurity Best Practices document.",
"product_ids": [
"CSAFPID-0001"
],
"url": "https://www.se.com/us/en/download/document/7EN52-0390/"
},
{
"category": "mitigation",
"details": "Refer to Schneider Electric\u0027s security bulletin SEVD-2020-315-05 for specific mitigation details.",
"product_ids": [
"CSAFPID-0001"
],
"url": "https://www.se.com/ww/en/download/document/SEVD-2020-315-05/"
}
],
"scores": [
{
"cvss_v3": {
"baseScore": 7.1,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.0/AV:A/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H",
"version": "3.0"
},
"products": [
"CSAFPID-0001"
]
}
]
},
{
"cve": "CVE-2020-7567",
"cwe": {
"id": "CWE-311",
"name": "Missing Encryption of Sensitive Data"
},
"notes": [
{
"category": "summary",
"text": "A missing encryption of sensitive data vulnerability exists that could allow the attacker to find the password hash when the attacker has captured the traffic between EcoStruxure Machine - Basic software and Modicon M221 controller and has broken the encryption keys.CVE-2020-7567 has been assigned to this vulnerability. A CVSS v3 base score of 7.1 has been calculated; the CVSS vector string is (AV:A/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H).",
"title": "Vulnerability Summary"
}
],
"product_status": {
"known_affected": [
"CSAFPID-0001"
]
},
"references": [
{
"category": "external",
"summary": "web.nvd.nist.gov",
"url": "http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2020-7567"
},
{
"category": "external",
"summary": "www.first.org",
"url": "https://www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:A/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H"
}
],
"remediations": [
{
"category": "mitigation",
"details": "Set up network segmentation and implement a firewall to block all unauthorized access to Port 502/TCP.",
"product_ids": [
"CSAFPID-0001"
]
},
{
"category": "vendor_fix",
"details": "Within the Modicon M221 application, the user must: Disable all unused protocols, especially programming protocol, as described in section \u201cConfiguring Ethernet Network\u201d of EcoStruxure Machine Expert - Basic online help for the M221 PLC. This action will prevent unintended remote programming access.;Set a password to protect the project.;Set a password for read access on the controller.;Set a different password for write access on the controller.",
"product_ids": [
"CSAFPID-0001"
]
},
{
"category": "mitigation",
"details": "Locate control and safety system networks and remote devices behind firewalls and isolate them from the business network.",
"product_ids": [
"CSAFPID-0001"
]
},
{
"category": "mitigation",
"details": "Install physical controls so no unauthorized personnel can access industrial control and safety systems, components, peripheral equipment, and networks.",
"product_ids": [
"CSAFPID-0001"
]
},
{
"category": "mitigation",
"details": "Place all controllers in locked cabinets and never leave them in the \u201cProgram\u201d mode.",
"product_ids": [
"CSAFPID-0001"
]
},
{
"category": "mitigation",
"details": "Never connect programming software to any network other than the network for which the devices were intended.",
"product_ids": [
"CSAFPID-0001"
]
},
{
"category": "mitigation",
"details": "Scan all methods of mobile data exchange with the isolated network (e.g., CDs, USB drives, etc.) before use in the terminals or any node connected to these networks.",
"product_ids": [
"CSAFPID-0001"
]
},
{
"category": "mitigation",
"details": "Never allow mobile devices that have connected to any other network, besides the intended network, to connect to the safety or control networks without proper sanitation.",
"product_ids": [
"CSAFPID-0001"
]
},
{
"category": "mitigation",
"details": "Minimize network exposure for all control system devices and systems and ensure that they are not accessible from the Internet.",
"product_ids": [
"CSAFPID-0001"
]
},
{
"category": "mitigation",
"details": "When remote access is required, use secure methods such as virtual private networks (VPNs). Recognize that VPNs may have vulnerabilities and should be updated to the most current version available. Also, understand that VPNs are only as secure as the connected devices.",
"product_ids": [
"CSAFPID-0001"
]
},
{
"category": "mitigation",
"details": "For more information refer to the Schneider Electric Recommended Cybersecurity Best Practices document.",
"product_ids": [
"CSAFPID-0001"
],
"url": "https://www.se.com/us/en/download/document/7EN52-0390/"
},
{
"category": "mitigation",
"details": "Refer to Schneider Electric\u0027s security bulletin SEVD-2020-315-05 for specific mitigation details.",
"product_ids": [
"CSAFPID-0001"
],
"url": "https://www.se.com/ww/en/download/document/SEVD-2020-315-05/"
}
],
"scores": [
{
"cvss_v3": {
"baseScore": 7.1,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.0/AV:A/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H",
"version": "3.0"
},
"products": [
"CSAFPID-0001"
]
}
]
},
{
"cve": "CVE-2020-7568",
"cwe": {
"id": "CWE-200",
"name": "Exposure of Sensitive Information to an Unauthorized Actor"
},
"notes": [
{
"category": "summary",
"text": "An exposure of sensitive information to an unauthorized actor vulnerability exists that could allow non-sensitive information disclosure when the attacker has captured the traffic between EcoStruxure Machine - Basic software and Modicon M221 controller.CVE-2020-7568 has been assigned to this vulnerability. A CVSS v3 base score of 3.1 has been calculated; the CVSS vector string is (AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N).",
"title": "Vulnerability Summary"
}
],
"product_status": {
"known_affected": [
"CSAFPID-0001"
]
},
"references": [
{
"category": "external",
"summary": "web.nvd.nist.gov",
"url": "http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2020-7568"
},
{
"category": "external",
"summary": "www.first.org",
"url": "https://www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N"
}
],
"remediations": [
{
"category": "mitigation",
"details": "Set up network segmentation and implement a firewall to block all unauthorized access to Port 502/TCP.",
"product_ids": [
"CSAFPID-0001"
]
},
{
"category": "vendor_fix",
"details": "Within the Modicon M221 application, the user must: Disable all unused protocols, especially programming protocol, as described in section \u201cConfiguring Ethernet Network\u201d of EcoStruxure Machine Expert - Basic online help for the M221 PLC. This action will prevent unintended remote programming access.;Set a password to protect the project.;Set a password for read access on the controller.;Set a different password for write access on the controller.",
"product_ids": [
"CSAFPID-0001"
]
},
{
"category": "mitigation",
"details": "Locate control and safety system networks and remote devices behind firewalls and isolate them from the business network.",
"product_ids": [
"CSAFPID-0001"
]
},
{
"category": "mitigation",
"details": "Install physical controls so no unauthorized personnel can access industrial control and safety systems, components, peripheral equipment, and networks.",
"product_ids": [
"CSAFPID-0001"
]
},
{
"category": "mitigation",
"details": "Place all controllers in locked cabinets and never leave them in the \u201cProgram\u201d mode.",
"product_ids": [
"CSAFPID-0001"
]
},
{
"category": "mitigation",
"details": "Never connect programming software to any network other than the network for which the devices were intended.",
"product_ids": [
"CSAFPID-0001"
]
},
{
"category": "mitigation",
"details": "Scan all methods of mobile data exchange with the isolated network (e.g., CDs, USB drives, etc.) before use in the terminals or any node connected to these networks.",
"product_ids": [
"CSAFPID-0001"
]
},
{
"category": "mitigation",
"details": "Never allow mobile devices that have connected to any other network, besides the intended network, to connect to the safety or control networks without proper sanitation.",
"product_ids": [
"CSAFPID-0001"
]
},
{
"category": "mitigation",
"details": "Minimize network exposure for all control system devices and systems and ensure that they are not accessible from the Internet.",
"product_ids": [
"CSAFPID-0001"
]
},
{
"category": "mitigation",
"details": "When remote access is required, use secure methods such as virtual private networks (VPNs). Recognize that VPNs may have vulnerabilities and should be updated to the most current version available. Also, understand that VPNs are only as secure as the connected devices.",
"product_ids": [
"CSAFPID-0001"
]
},
{
"category": "mitigation",
"details": "For more information refer to the Schneider Electric Recommended Cybersecurity Best Practices document.",
"product_ids": [
"CSAFPID-0001"
],
"url": "https://www.se.com/us/en/download/document/7EN52-0390/"
},
{
"category": "mitigation",
"details": "Refer to Schneider Electric\u0027s security bulletin SEVD-2020-315-05 for specific mitigation details.",
"product_ids": [
"CSAFPID-0001"
],
"url": "https://www.se.com/ww/en/download/document/SEVD-2020-315-05/"
}
],
"scores": [
{
"cvss_v3": {
"baseScore": 3.1,
"baseSeverity": "LOW",
"vectorString": "CVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N",
"version": "3.0"
},
"products": [
"CSAFPID-0001"
]
}
]
},
{
"cve": "CVE-2020-28214",
"cwe": {
"id": "CWE-760",
"name": "Use of a One-Way Hash with a Predictable Salt"
},
"notes": [
{
"category": "summary",
"text": "A use of a one-way hash with a predictable salt vulnerability exists that could allow the attacker to pre-compute the hash value using a dictionary attack, effectively disabling the protection that an unpredictable salt would provide.CVE-2020-28214 has been assigned to this vulnerability. A CVSS v3 base score of 3.3 has been calculated; the CVSS vector string is (AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N).",
"title": "Vulnerability Summary"
}
],
"product_status": {
"known_affected": [
"CSAFPID-0001"
]
},
"references": [
{
"category": "external",
"summary": "web.nvd.nist.gov",
"url": "http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2020-28214"
},
{
"category": "external",
"summary": "www.first.org",
"url": "https://www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N"
}
],
"remediations": [
{
"category": "mitigation",
"details": "Set up network segmentation and implement a firewall to block all unauthorized access to Port 502/TCP.",
"product_ids": [
"CSAFPID-0001"
]
},
{
"category": "vendor_fix",
"details": "Within the Modicon M221 application, the user must: Disable all unused protocols, especially programming protocol, as described in section \u201cConfiguring Ethernet Network\u201d of EcoStruxure Machine Expert - Basic online help for the M221 PLC. This action will prevent unintended remote programming access.;Set a password to protect the project.;Set a password for read access on the controller.;Set a different password for write access on the controller.",
"product_ids": [
"CSAFPID-0001"
]
},
{
"category": "mitigation",
"details": "Locate control and safety system networks and remote devices behind firewalls and isolate them from the business network.",
"product_ids": [
"CSAFPID-0001"
]
},
{
"category": "mitigation",
"details": "Install physical controls so no unauthorized personnel can access industrial control and safety systems, components, peripheral equipment, and networks.",
"product_ids": [
"CSAFPID-0001"
]
},
{
"category": "mitigation",
"details": "Place all controllers in locked cabinets and never leave them in the \u201cProgram\u201d mode.",
"product_ids": [
"CSAFPID-0001"
]
},
{
"category": "mitigation",
"details": "Never connect programming software to any network other than the network for which the devices were intended.",
"product_ids": [
"CSAFPID-0001"
]
},
{
"category": "mitigation",
"details": "Scan all methods of mobile data exchange with the isolated network (e.g., CDs, USB drives, etc.) before use in the terminals or any node connected to these networks.",
"product_ids": [
"CSAFPID-0001"
]
},
{
"category": "mitigation",
"details": "Never allow mobile devices that have connected to any other network, besides the intended network, to connect to the safety or control networks without proper sanitation.",
"product_ids": [
"CSAFPID-0001"
]
},
{
"category": "mitigation",
"details": "Minimize network exposure for all control system devices and systems and ensure that they are not accessible from the Internet.",
"product_ids": [
"CSAFPID-0001"
]
},
{
"category": "mitigation",
"details": "When remote access is required, use secure methods such as virtual private networks (VPNs). Recognize that VPNs may have vulnerabilities and should be updated to the most current version available. Also, understand that VPNs are only as secure as the connected devices.",
"product_ids": [
"CSAFPID-0001"
]
},
{
"category": "mitigation",
"details": "For more information refer to the Schneider Electric Recommended Cybersecurity Best Practices document.",
"product_ids": [
"CSAFPID-0001"
],
"url": "https://www.se.com/us/en/download/document/7EN52-0390/"
},
{
"category": "mitigation",
"details": "Refer to Schneider Electric\u0027s security bulletin SEVD-2020-315-05 for specific mitigation details.",
"product_ids": [
"CSAFPID-0001"
],
"url": "https://www.se.com/ww/en/download/document/SEVD-2020-315-05/"
}
],
"scores": [
{
"cvss_v3": {
"baseScore": 3.3,
"baseSeverity": "LOW",
"vectorString": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
"version": "3.0"
},
"products": [
"CSAFPID-0001"
]
}
]
}
]
}
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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.