{ "document": { "acknowledgments": [ { "names": [ "Souvik Kandar" ], "summary": "reporting this vulnerability to AutomationDirect" }, { "organization": "AutomationDirect", "summary": "reporting this vulnerability to CISA" } ], "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": "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 an attacker to make configuration changes, disrupt operations, or achieve arbitrary code execution. ", "title": "Risk evaluation" }, { "category": "other", "text": "Critical Manufacturing", "title": "Critical infrastructure sectors" }, { "category": "other", "text": "Worldwide", "title": "Countries/areas deployed" }, { "category": "other", "text": "United States", "title": "Company headquarters location" }, { "category": "general", "text": "CISA recommends users take defensive measures to minimize the risk of exploitation of this vulnerability, such as:", "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 current version available. Also recognize VPN is only as secure as the 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/ics. 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.", "title": "Recommended Practices" }, { "category": "general", "text": "Additional mitigation guidance and recommended practices are publicly available on the ICS webpage at cisa.gov/ics 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" }, { "category": "general", "text": "CISA also recommends users take the following measures to protect themselves from social engineering attacks:", "title": "Recommended Practices" }, { "category": "general", "text": "Do not click web links or open attachments in unsolicited email messages.", "title": "Recommended Practices" }, { "category": "general", "text": "Refer to Recognizing and Avoiding Email Scams for more information on avoiding email scams.", "title": "Recommended Practices" }, { "category": "general", "text": "Refer to Avoiding Social Engineering and Phishing Attacks for more information on social engineering attacks.", "title": "Recommended Practices" }, { "category": "general", "text": "No known public exploitation specifically targeting this vulnerability has been reported to CISA at this time.", "title": "Recommended Practices" } ], "publisher": { "category": "coordinator", "contact_details": "central@cisa.dhs.gov", "name": "CISA", "namespace": "https://www.cisa.gov/" }, "references": [ { "category": "self", "summary": "ICS Advisory ICSA-25-140-09 JSON", "url": "https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/OT/white/2025/icsa-25-140-09.json" }, { "category": "self", "summary": "ICSA Advisory ICSA-25-140-09 - Web Version", "url": "https://www.cisa.gov/news-events/ics-advisories/icsa-25-140-09" }, { "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/sites/default/files/publications/Cybersecurity_Best_Practices_for_Industrial_Control_Systems.pdf" }, { "category": "external", "summary": "Recommended Practices", "url": "https://www.cisa.gov/topics/industrial-control-systems" }, { "category": "external", "summary": "Recommended Practices", "url": "https://www.cisa.gov/uscert/sites/default/files/publications/emailscams0905.pdf" }, { "category": "external", "summary": "Recommended Practices", "url": "https://www.cisa.gov/uscert/ncas/tips/ST04-014" }, { "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://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/uscert/ics/tips/ICS-TIP-12-146-01B" } ], "title": "AutomationDirect MB-Gateway", "tracking": { "current_release_date": "2025-05-20T06:00:00.000000Z", "generator": { "date": "2025-05-20T21:56:52.888828Z", "engine": { "name": "CISA CSAF Generator", "version": "1.0.0" } }, "id": "ICSA-25-140-09", "initial_release_date": "2025-05-20T06:00:00.000000Z", "revision_history": [ { "date": "2025-05-20T06:00:00.000000Z", "legacy_version": "Initial", "number": "1", "summary": "Initial Publication" } ], "status": "final", "version": "1" } }, "product_tree": { "branches": [ { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:all/*", "product": { "name": "AutomationDirect MB-Gateway: vers:all/*", "product_id": "CSAFPID-0001" } } ], "category": "product_name", "name": "MB-Gateway" } ], "category": "vendor", "name": "AutomationDirect" } ] }, "vulnerabilities": [ { "cve": "CVE-2025-36535", "cwe": { "id": "CWE-306", "name": "Missing Authentication for Critical Function" }, "notes": [ { "category": "summary", "text": "The embedded webserver lacks authentication and access controls, allowing unrestricted remote access. This could lead to configuration changes, operational disruption, or arbitrary code execution depending on the environment and exposed functionality.", "title": "Vulnerability Summary" } ], "product_status": { "known_affected": [ "CSAFPID-0001" ] }, "references": [ { "category": "external", "summary": "www.cve.org", "url": "https://www.cve.org/CVERecord?id=CVE-2025-36535" }, { "category": "external", "summary": "www.first.org", "url": "https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H" }, { "category": "external", "summary": "www.first.org", "url": "https://www.first.org/cvss/calculator/4.0#CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H" } ], "remediations": [ { "category": "vendor_fix", "details": "The hardware limitation of MB-Gateway does not provide for the implementation of proper access control update. AutomationDirect recommends that users plan for replacement of MB-Gateway with EKI-1221-CE.", "product_ids": [ "CSAFPID-0001" ], "url": "https://www.automationdirect.com/adc/shopping/catalog/communications/protocol_gateways/modbus_gateways/eki-1221-ce" }, { "category": "mitigation", "details": "If an immediate replacement is not feasible, AutomationDirect recommends considering the following interim steps until the programming software can be updated:", "product_ids": [ "CSAFPID-0001" ] }, { "category": "mitigation", "details": "Restrict network exposure: Ensure devices affected are not accessible from the Internet or untrusted networks. Place them behind firewalls.", "product_ids": [ "CSAFPID-0001" ] }, { "category": "mitigation", "details": "Use dedicated, secure internal networks or air-gapped systems for communication with programmable devices.", "product_ids": [ "CSAFPID-0001" ] }, { "category": "mitigation", "details": "Control Access: Restrict physical and logical access to authorized personnel only.", "product_ids": [ "CSAFPID-0001" ] }, { "category": "mitigation", "details": "Implement Whitelisting: Use application whitelisting to allow only pre-approved and trusted access. Block untrusted or unauthorized applications.", "product_ids": [ "CSAFPID-0001" ] }, { "category": "mitigation", "details": "Monitor and Log Activity: Enable logging and monitoring of system activities to detect potential anomalies or unauthorized actions. Regularly review logs for suspicious activity.", "product_ids": [ "CSAFPID-0001" ] }, { "category": "mitigation", "details": "Use Secure Backup and Recovery: Regularly back up the workstation and its configurations to a secure location. Test recovery procedures to ensure minimal downtime in the event of an incident.", "product_ids": [ "CSAFPID-0001" ] }, { "category": "mitigation", "details": "Plan for device replacement: Organizations should begin evaluating and migrating to supported hardware with active vendor support.", "product_ids": [ "CSAFPID-0001" ] } ], "scores": [ { "cvss_v3": { "baseScore": 10.0, "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H", "version": "3.1" }, "products": [ "CSAFPID-0001" ] } ] } ] }