{ "document": { "acknowledgments": [ { "names": [ "Parul Sindhwad", "Anurag M. Chevendra", "Dr. Faruk Kazi" ], "organization": "CoE-CNDS Lab VJTI", "summary": "reporting this vulnerability to Moxa" } ], "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-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 this vulnerability could allow remote attackers to obtain sensitive information.", "title": "Risk evaluation" }, { "category": "other", "text": "Multiple Sectors", "title": "Critical infrastructure sectors" }, { "category": "other", "text": "Worldwide", "title": "Countries/areas deployed" }, { "category": "other", "text": "Taiwan", "title": "Company headquarters location" }, { "category": "general", "text": "CISA recommends users take defensive measures to minimize the risk of exploitation of this vulnerability. Specifically, users should:", "title": "Recommended Practices" }, { "category": "general", "text": "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 on 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 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": "other", "text": "No known public exploits specifically target this vulnerability.", "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-21-357-01 JSON", "url": "https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/OT/white/2021/icsa-21-357-01.json" }, { "category": "self", "summary": "ICS Advisory ICSA-21-357-01 Web Version", "url": "https://www.cisa.gov/news-events/ics-advisories/icsa-21-357-01" }, { "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/uscert/sites/default/files/recommended_practices/NCCIC_ICS-CERT_Defense_in_Depth_2016_S508C.pdf" }, { "category": "external", "summary": "Recommended Practices", "url": "https://www.cisa.gov/uscert/ics/tips/ICS-TIP-12-146-01B" } ], "title": "Moxa MGate Protocol Gateways", "tracking": { "current_release_date": "2021-12-23T00:00:00.000000Z", "generator": { "engine": { "name": "CISA CSAF Generator", "version": "1.0.0" } }, "id": "ICSA-21-357-01", "initial_release_date": "2021-12-23T00:00:00.000000Z", "revision_history": [ { "date": "2021-12-23T00:00:00.000000Z", "legacy_version": "Initial", "number": "1", "summary": "ICSA-21-357-01 Moxa MGate Protocol Gateways" } ], "status": "final", "version": "1" } }, "product_tree": { "branches": [ { "branches": [ { "branches": [ { "category": "product_version_range", "name": "<= 4.1", "product": { "name": "MGate MB3280 Series: Firmware Version 4.1 or lower", "product_id": "CSAFPID-0001" } } ], "category": "product_name", "name": "MGate MB3280 Series" }, { "branches": [ { "category": "product_version_range", "name": "<= 2.2", "product": { "name": "MGate MB3180 Series: Firmware Version 2.2 or lower", "product_id": "CSAFPID-0002" } } ], "category": "product_name", "name": "MGate MB3180 Series" }, { "branches": [ { "category": "product_version_range", "name": "<= 3.2", "product": { "name": "MGate MB3480 Series: Firmware Version 3.2 or lower", "product_id": "CSAFPID-0003" } } ], "category": "product_name", "name": "MGate MB3480 Series" } ], "category": "vendor", "name": "Moxa" } ] }, "vulnerabilities": [ { "cve": "CVE-2021-4161", "cwe": { "id": "CWE-319", "name": "Cleartext Transmission of Sensitive Information" }, "notes": [ { "category": "summary", "text": "The affected products contain vulnerable firmware, which could allow an attacker to sniff the traffic and decrypt login credential details. This could give an attacker admin rights through the HTTP web server.CVE-2021-4161has been assigned to this vulnerability. A CVSS v3 base score of 9.8 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).", "title": "Vulnerability Summary" } ], "product_status": { "known_affected": [ "CSAFPID-0001", "CSAFPID-0002", "CSAFPID-0003" ] }, "references": [ { "category": "external", "summary": "web.nvd.nist.gov", "url": "http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2021-4161" }, { "category": "external", "summary": "www.first.org", "url": "https://www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H" } ], "remediations": [ { "category": "mitigation", "details": "Enable 'HTTPS' and disable the HTTP console function under 'Console Settings'", "product_ids": [ "CSAFPID-0001", "CSAFPID-0002", "CSAFPID-0003" ] }, { "category": "mitigation", "details": "Moxa also recommends users refer to Tech Note: Moxa Security Hardening Guide for MGate MB3000 Series", "product_ids": [ "CSAFPID-0001", "CSAFPID-0002", "CSAFPID-0003" ], "url": "https://cdn-cms.azureedge.net/getmedia/6461a6a5-8b9d-4c83-8fcf-4d163c51f933/moxa-the-security-hardening-guide-for-the-mgate-mb3000-series-tech-note-v1.0.pdf" } ], "scores": [ { "cvss_v3": { "baseScore": 9.8, "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.0" }, "products": [ "CSAFPID-0001", "CSAFPID-0002", "CSAFPID-0003" ] } ] } ] }