SEVD-2021-257-02
Vulnerability from csaf_se - Published: 2021-09-14 20:04 - Updated: 2023-02-14 20:04Summary
Web Server on Modicon M340, Legacy Offers Modicon Quantum and Premium and Associated Communication Modules
Notes
General Security Recommendations
We strongly recommend the following industry cybersecurity best practices.
https://www.se.com/us/en/download/document/7EN52-0390/
* Locate control and safety system networks and remote devices behind firewalls and isolate them from the business network.
* Install physical controls so no unauthorized personnel can access your industrial control and safety systems, components, peripheral equipment, and networks.
* Place all controllers in locked cabinets and never leave them in the “Program” mode.
* Never connect programming software to any network other than the network intended for that device.
* Scan all methods of mobile data exchange with the isolated network such as CDs, USB drives, etc. before use in the terminals or any node connected to these networks.
* 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.
* Minimize network exposure for all control system devices and systems and ensure that they are not accessible from the Internet.
* 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.
For more information refer to the Schneider Electric Recommended Cybersecurity Best Practices document.
For More Information
This document provides an overview of the identified vulnerability or vulnerabilities and actions required to mitigate. For more details and assistance on how to protect your installation, contact your local Schneider Electric representative or Schneider Electric Industrial Cybersecurity Services: https://www.se.com/ww/en/work/solutions/cybersecurity/. These organizations will be fully aware of this situation and can support you through the process.
For further information related to cybersecurity in Schneider Electric’s products, visit the company’s cybersecurity support portal page: https://www.se.com/ww/en/work/support/cybersecurity/overview.jsp
LEGAL DISCLAIMER
THIS NOTIFICATION DOCUMENT, THE INFORMATION CONTAINED HEREIN, AND ANY MATERIALS LINKED FROM IT (COLLECTIVELY, THIS “NOTIFICATION”) ARE INTENDED TO HELP PROVIDE AN OVERVIEW OF THE IDENTIFIED SITUATION AND SUGGESTED MITIGATION ACTIONS, REMEDIATION, FIX, AND/OR GENERAL SECURITY RECOMMENDATIONS AND IS PROVIDED ON AN “AS-IS” BASIS WITHOUT WARRANTY OR GUARANTEE OF ANY KIND. SCHNEIDER ELECTRIC DISCLAIMS ALL WARRANTIES RELATING TO THIS NOTIFICATION, EITHER EXPRESS OR IMPLIED, INCLUDING WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. SCHNEIDER ELECTRIC MAKES NO WARRANTY THAT THE NOTIFICATION WILL RESOLVE THE IDENTIFIED SITUATION. IN NO EVENT SHALL SCHNEIDER ELECTRIC BE LIABLE FOR ANY DAMAGES OR LOSSES WHATSOEVER IN CONNECTION WITH THIS NOTIFICATION, INCLUDING DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF SCHNEIDER ELECTRIC HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. YOUR USE OF THIS NOTIFICATION IS AT YOUR OWN RISK, AND YOU ARE SOLELY LIABLE FOR ANY DAMAGES TO YOUR SYSTEMS OR ASSETS OR OTHER LOSSES THAT MAY RESULT FROM YOUR USE OF THIS NOTIFICATION. SCHNEIDER ELECTRIC RESERVES THE RIGHT TO UPDATE OR CHANGE THIS NOTIFICATION AT ANY TIME AND IN ITS SOLE DISCRETION
About Schneider Electric
At Schneider, we believe access to energy and digital is a basic human right. We empower all to do more with less, ensuring Life Is On everywhere, for everyone, at every moment.
We provide energy and automation digital solutions for efficiency and sustainability. We combine world-leading energy technologies, real-time automation, software and services into integrated solutions for Homes, Buildings, Data Centers, Infrastructure and Industries.
We are committed to unleash the infinite possibilities of an open, global, innovative community that is passionate with our Meaningful Purpose, Inclusive and Empowered values.
www.se.com
Overview
Schneider Electric is aware of multiple vulnerabilities in the web server component of the Modicon M340 PLC. In addition, the Modicon Quantum and Modicon Premium Legacy offers, and associated communication modules are affected. The Modicon Ethernet Programmable Automation products are controllers for industrial process and infrastructure. Failure to apply the remediations provided below may risk an attack via the web server, which could result in disclosure of sensitive information or denial of service of the controller.
September 2022 Update: A remediation is available for Modicon M340 X80 Ethernet Communication Modules BMXNOR0200H RTU (page 3) and BMXNOC0401 (page 4)
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"acknowledgments": [
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"organization": "ELEX FEIGONG RESEARCH INSTITUTE"
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"category": "vendor_fix",
"details": "V3.40 includes a fix for these vulnerabilities and is available for download here:https://www.se.com/ww/en/download/document/BMXP34xxxxx_SV_xx.xx/\n",
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"details": "If customers choose not to apply the remediation, then they should immediately apply the following mitigations to reduce the risk of exploit: \u2022Setup network segmentation and implement a firewall to block all unauthorized access to port 80/HTTP (Note HTTP is disabled by default). \u2022Configure the Access Control List following the recommendations of the user manual \u201cModicon M340 for Ethernet Communications Modules and Processors User Manual\u201d in chapter \u201cMessaging Configuration Parameters\u201d: https://www.se.com/ww/en/download/document/31007131K01000/\u2022Setup a VPN between the Modicon PLC impacted modules and the engineering workstation containing EcoStruxure Control Expertor Process Expert.",
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},
{
"category": "no_fix_planned",
"details": "Modicon Quantum and Associated Communication Modules:Schneider Electric\u2019s Modicon Quantum controllers have reached their end of life and are no longer commercially available. They have been replaced by the Modicon M580 ePAC controller, our most current product offer. Customers should strongly consider migrating to the Modicon M580 ePAC. Please contact your local Schneider Electric technical support for more information.To mitigate the risks, users should immediately:\u2022 Disable the Web server using \u0027Web Access (HTTP)\u0027 via UnityPro / EcoStruxure Control Expert using the following guideline \u201c Quantum using EcoStruxure\u2122 Control Expert - TCP/IP Configuration, User Manual\u201d in the chapter \u201cSecurity (Enable / Disable HTTP, FTP, and TFTP)\u201d:https://www.se.com/ww/en/download/document/33002479K01000",
"product_ids": [
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"details": "Modicon Premium and Associated Communication Modules:Schneider Electric\u2019s Modicon Premium controllers have reached their end of life and are no longer commercially available. They have been replaced by the Modicon M580 ePAC controller, our most current product offer. Customers should strongly consider migrating to the Modicon M580 ePAC. Please contact your local Schneider Electric technical support for more information.To mitigate the risks, users should immediately:\u2022Disable the Web server using \u0027Web Access (HTTP)\u0027 via UnityPro / EcoStruxure Control Expert using the following guideline \u201cPremium and Atrium using EcoStruxure\u2122 Control Expert - Ethernet Network Modules, User Manual\u201d in the chapter \u201cSecurity Service Configuration Parameters / Security (Enable / Disable HTTP, FTP, and TFTP)\u201d: https://www.se.com/ww/en/download/document/35006192K01000For further information, please check the \u201cPremium and Atrium using EcoStruxure\u2122 Control Expert - Ethernet Network Modules, User Manual\u201d and the Modicon Controllers Platform Cyber Security Reference Manual",
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"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
"version": "3.1"
},
"products": [
"1",
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{
"acknowledgments": [
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],
"organization": "ELEX FEIGONG RESEARCH INSTITUTE"
}
],
"cve": "CVE-2021-22788",
"cwe": {
"id": "CWE-787",
"name": "Out-of-bounds Write"
},
"notes": [
{
"category": "description",
"text": "A CWE-787: Out-of-bounds Writevulnerability exists that could cause denial of service when an attacker sends a specially crafted HTTP request to the web server of the device. "
}
],
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"CSAFPID-0003",
"CSAFPID-0008",
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"details": "V3.40 includes a fix for these vulnerabilities and is available for download here:https://www.se.com/ww/en/download/document/BMXP34xxxxx_SV_xx.xx/\n",
"product_ids": [
"1"
],
"url": "https://www.se.com/ww/en/download/document/BMXP34xxxxx_SV_xx.xx/"
},
{
"category": "vendor_fix",
"details": "V1.70 IR24 includes a fix for these vulnerabilities and is available for download here: https://www.se.com/ww/en/download/document/BMXNOR0200H_FW/Note: V1.70 IR23 previously included a fix for CVE-2021-22785 If customers choose not to apply the recommended fixes then they should apply the mitigations below to reduce the risk of the exploit: \u2022Setup network segmentation and implement a firewall to block all unauthorized access to port 80/HTTP (Note HTTP is disabled by default). \u2022Configure the Access Control List following the recommendations of the user manual \u201cModicon M340 for Ethernet Communications Modules and Processors User Manual\u201d in chapter \u201cMessaging Configuration Parameters\u201d: https://www.se.com/ww/en/download/document/31007131K01000/\u2022Setup a VPN between the Modicon PLC impacted modules and the engineering workstation containing EcoStruxure Control Expert or Process Expert.",
"product_ids": [
"14"
]
},
{
"category": "vendor_fix",
"details": "Version SV03.50of BMXNOE0100 (H) includes a fix for thesevulnerabilities and is available for download here: https://www.se.com/ww/en/download/document/BMXNOE0100_SV_03.50/",
"product_ids": [
"2"
]
},
{
"category": "vendor_fix",
"details": "Version SV06.70 of BMXNOE0110 (H) includes a fix for these vulnerabilities and is available for download here: https://www.se.com/ww/en/download/document/BMXNOE0110_SV_06.70/",
"product_ids": [
"3"
]
},
{
"category": "mitigation",
"details": "If customers choose not to apply the remediation, then they should immediately apply the following mitigations to reduce the risk of exploit: \u2022Setup network segmentation and implement a firewall to block all unauthorized access to port 80/HTTP (Note HTTP is disabled by default). \u2022Configure the Access Control List following the recommendations of the user manual \u201cModicon M340 for Ethernet Communications Modules and Processors User Manual\u201d in chapter \u201cMessaging Configuration Parameters\u201d: https://www.se.com/ww/en/download/document/31007131K01000/\u2022Setup a VPN between the Modicon PLC impacted modules and the engineering workstation containing EcoStruxure Control Expertor Process Expert.",
"product_ids": [
"2",
"3"
]
},
{
"category": "vendor_fix",
"details": "BMXNOC0401 V2.11 is available for download that has a fix of the reported vulnerabilities: https://www.se.com/ww/en/product/BMXNOC0401/ethernet-tcp-ip-network-module-modicon-m340-automation-platform-4-x-rj45-10-100/If customers choose not to apply the fix, then, they should immediately apply the following mitigations to reduce the risk of exploit: \u2022Setup network segmentation and implement a firewall to block all unauthorized access to port 80/HTTP\u2022Setup a VPN between the Modicon PLC impacted modules and the engineering workstation containing EcoStruxure Control Expert or Process Expert",
"product_ids": [
"4"
],
"url": "https://www.se.com/ww/en/product/BMXNOC0401/ethernet-tcp-ip-network-module-modicon-m340-automation-platform-4-x-rj45-10-100/"
},
{
"category": "no_fix_planned",
"details": "Modicon Quantum and Associated Communication Modules:Schneider Electric\u2019s Modicon Quantum controllers have reached their end of life and are no longer commercially available. They have been replaced by the Modicon M580 ePAC controller, our most current product offer. Customers should strongly consider migrating to the Modicon M580 ePAC. Please contact your local Schneider Electric technical support for more information.To mitigate the risks, users should immediately:\u2022 Disable the Web server using \u0027Web Access (HTTP)\u0027 via UnityPro / EcoStruxure Control Expert using the following guideline \u201c Quantum using EcoStruxure\u2122 Control Expert - TCP/IP Configuration, User Manual\u201d in the chapter \u201cSecurity (Enable / Disable HTTP, FTP, and TFTP)\u201d:https://www.se.com/ww/en/download/document/33002479K01000",
"product_ids": [
"8",
"10",
"11",
"9"
]
},
{
"category": "no_fix_planned",
"details": "Modicon Premium and Associated Communication Modules:Schneider Electric\u2019s Modicon Premium controllers have reached their end of life and are no longer commercially available. They have been replaced by the Modicon M580 ePAC controller, our most current product offer. Customers should strongly consider migrating to the Modicon M580 ePAC. Please contact your local Schneider Electric technical support for more information.To mitigate the risks, users should immediately:\u2022Disable the Web server using \u0027Web Access (HTTP)\u0027 via UnityPro / EcoStruxure Control Expert using the following guideline \u201cPremium and Atrium using EcoStruxure\u2122 Control Expert - Ethernet Network Modules, User Manual\u201d in the chapter \u201cSecurity Service Configuration Parameters / Security (Enable / Disable HTTP, FTP, and TFTP)\u201d: https://www.se.com/ww/en/download/document/35006192K01000For further information, please check the \u201cPremium and Atrium using EcoStruxure\u2122 Control Expert - Ethernet Network Modules, User Manual\u201d and the Modicon Controllers Platform Cyber Security Reference Manual",
"product_ids": [
"12",
"13",
"5",
"6",
"7"
]
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
"version": "3.1"
},
"products": [
"1",
"2",
"3",
"4",
"5",
"6",
"7",
"8",
"9",
"10",
"11",
"12",
"13",
"14"
]
}
]
},
{
"acknowledgments": [
{
"names": [
"BDU"
],
"organization": "FSTEC Russia"
}
],
"cve": "CVE-2021-22787",
"cwe": {
"id": "CWE-20",
"name": "Improper Input Validation"
},
"notes": [
{
"category": "description",
"text": "A CWE-20: Improper Input Validation vulnerability exists that could cause denial of service of the device when an attacker sends a specially crafted HTTP request to the web server of the device."
}
],
"product_status": {
"fixed": [
"CSAFPID-0002",
"CSAFPID-0003",
"CSAFPID-0008",
"15",
"16"
],
"known_affected": [
"1",
"2",
"3",
"4",
"5",
"6",
"7",
"8",
"9",
"10",
"11",
"12",
"13",
"14"
]
},
"remediations": [
{
"category": "vendor_fix",
"details": "V3.40 includes a fix for these vulnerabilities and is available for download here:https://www.se.com/ww/en/download/document/BMXP34xxxxx_SV_xx.xx/\n",
"product_ids": [
"1"
],
"url": "https://www.se.com/ww/en/download/document/BMXP34xxxxx_SV_xx.xx/"
},
{
"category": "vendor_fix",
"details": "V1.70 IR24 includes a fix for these vulnerabilities and is available for download here: https://www.se.com/ww/en/download/document/BMXNOR0200H_FW/Note: V1.70 IR23 previously included a fix for CVE-2021-22785 If customers choose not to apply the recommended fixes then they should apply the mitigations below to reduce the risk of the exploit: \u2022Setup network segmentation and implement a firewall to block all unauthorized access to port 80/HTTP (Note HTTP is disabled by default). \u2022Configure the Access Control List following the recommendations of the user manual \u201cModicon M340 for Ethernet Communications Modules and Processors User Manual\u201d in chapter \u201cMessaging Configuration Parameters\u201d: https://www.se.com/ww/en/download/document/31007131K01000/\u2022Setup a VPN between the Modicon PLC impacted modules and the engineering workstation containing EcoStruxure Control Expert or Process Expert.",
"product_ids": [
"14"
]
},
{
"category": "vendor_fix",
"details": "Version SV03.50of BMXNOE0100 (H) includes a fix for thesevulnerabilities and is available for download here: https://www.se.com/ww/en/download/document/BMXNOE0100_SV_03.50/",
"product_ids": [
"2"
]
},
{
"category": "vendor_fix",
"details": "Version SV06.70 of BMXNOE0110 (H) includes a fix for these vulnerabilities and is available for download here: https://www.se.com/ww/en/download/document/BMXNOE0110_SV_06.70/",
"product_ids": [
"3"
]
},
{
"category": "mitigation",
"details": "If customers choose not to apply the remediation, then they should immediately apply the following mitigations to reduce the risk of exploit: \u2022Setup network segmentation and implement a firewall to block all unauthorized access to port 80/HTTP (Note HTTP is disabled by default). \u2022Configure the Access Control List following the recommendations of the user manual \u201cModicon M340 for Ethernet Communications Modules and Processors User Manual\u201d in chapter \u201cMessaging Configuration Parameters\u201d: https://www.se.com/ww/en/download/document/31007131K01000/\u2022Setup a VPN between the Modicon PLC impacted modules and the engineering workstation containing EcoStruxure Control Expertor Process Expert.",
"product_ids": [
"2",
"3"
]
},
{
"category": "vendor_fix",
"details": "BMXNOC0401 V2.11 is available for download that has a fix of the reported vulnerabilities: https://www.se.com/ww/en/product/BMXNOC0401/ethernet-tcp-ip-network-module-modicon-m340-automation-platform-4-x-rj45-10-100/If customers choose not to apply the fix, then, they should immediately apply the following mitigations to reduce the risk of exploit: \u2022Setup network segmentation and implement a firewall to block all unauthorized access to port 80/HTTP\u2022Setup a VPN between the Modicon PLC impacted modules and the engineering workstation containing EcoStruxure Control Expert or Process Expert",
"product_ids": [
"4"
],
"url": "https://www.se.com/ww/en/product/BMXNOC0401/ethernet-tcp-ip-network-module-modicon-m340-automation-platform-4-x-rj45-10-100/"
},
{
"category": "no_fix_planned",
"details": "Modicon Quantum and Associated Communication Modules:Schneider Electric\u2019s Modicon Quantum controllers have reached their end of life and are no longer commercially available. They have been replaced by the Modicon M580 ePAC controller, our most current product offer. Customers should strongly consider migrating to the Modicon M580 ePAC. Please contact your local Schneider Electric technical support for more information.To mitigate the risks, users should immediately:\u2022 Disable the Web server using \u0027Web Access (HTTP)\u0027 via UnityPro / EcoStruxure Control Expert using the following guideline \u201c Quantum using EcoStruxure\u2122 Control Expert - TCP/IP Configuration, User Manual\u201d in the chapter \u201cSecurity (Enable / Disable HTTP, FTP, and TFTP)\u201d:https://www.se.com/ww/en/download/document/33002479K01000",
"product_ids": [
"8",
"10",
"11",
"9"
]
},
{
"category": "no_fix_planned",
"details": "Modicon Premium and Associated Communication Modules:Schneider Electric\u2019s Modicon Premium controllers have reached their end of life and are no longer commercially available. They have been replaced by the Modicon M580 ePAC controller, our most current product offer. Customers should strongly consider migrating to the Modicon M580 ePAC. Please contact your local Schneider Electric technical support for more information.To mitigate the risks, users should immediately:\u2022Disable the Web server using \u0027Web Access (HTTP)\u0027 via UnityPro / EcoStruxure Control Expert using the following guideline \u201cPremium and Atrium using EcoStruxure\u2122 Control Expert - Ethernet Network Modules, User Manual\u201d in the chapter \u201cSecurity Service Configuration Parameters / Security (Enable / Disable HTTP, FTP, and TFTP)\u201d: https://www.se.com/ww/en/download/document/35006192K01000For further information, please check the \u201cPremium and Atrium using EcoStruxure\u2122 Control Expert - Ethernet Network Modules, User Manual\u201d and the Modicon Controllers Platform Cyber Security Reference Manual",
"product_ids": [
"12",
"13",
"5",
"6",
"7"
]
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
"version": "3.1"
},
"products": [
"1",
"2",
"3",
"4",
"5",
"6",
"7",
"8",
"9",
"10",
"11",
"12",
"13",
"14"
]
}
]
}
]
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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