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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2018.1680 Advisory (ICSMA-18-156-01) Philips' IntelliVue Patient and Avalon Fetal Monitors 6 June 2018 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: IntelliVue Patient Monitors MP Series IntelliVue Patient Monitors MX Series Avalon Fetal/Maternal Monitors FM20/FM30/FM40/FM50 Publisher: ICS-CERT Operating System: Network Appliance Impact/Access: Execute Arbitrary Code/Commands -- Remote/Unauthenticated Access Privileged Data -- Remote/Unauthenticated Denial of Service -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2018-10601 CVE-2018-10599 CVE-2018-10597 Original Bulletin: https://ics-cert.us-cert.gov/advisories/ICSMA-18-156-01 - --------------------------BEGIN INCLUDED TEXT-------------------- Advisory (ICSMA-18-156-01) Philips' IntelliVue Patient and Avalon Fetal Monitors Legal Notice All information products included in http://ics-cert.us-cert.gov 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 http://www.us-cert.gov/tlp/. 1. EXECUTIVE SUMMARY CVSS v3 8.3 Vendor: Philips Equipment: IntelliVue Patient Monitors, Avalon Fetal/Maternal Monitors Vulnerabilities: Improper Authentication, Information Exposure, Stack-based Buffer Overflow 2. RISK EVALUATION Successful exploitation may allow an attacker to read/write memory, and/or induce a denial of service through a system restart, thus potentially leading to a delay in diagnosis and treatment of patients. 3. TECHNICAL DETAILS 3.1 AFFECTED PRODUCTS The following IntelliVue Patient Monitors versions are affected: IntelliVue Patient Monitors MP Series (includingMP2/X2/MP30/MP50/MP70/NP90/MX700/800) Rev B-M, and IntelliVue Patient Monitors MX (MX400-550) Rev J-M and (X3/MX100 for Rev M only). The following Avalon Fetal/Maternal Monitors versions are affected: Avalon Fetal/Maternal Monitors FM20/FM30/FM40/FM50 with software Revisions F.0, G.0 and J.3 3.2 VULNERABILITY OVERVIEW 3.2.1 IMPROPER AUTHENTICATION CWE-287 The vulnerability allows an unauthenticated attacker to access memory ("write-what-where") from an attacker-chosen device address within the same subnet. CVE-2018-10597 has been assigned to this vulnerability. A CVSS v3 base score of 8.3 has been calculated; the CVSS vector string is (AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H). 3.2.2 INFORMATION EXPOSURE CWE-200 The vulnerability allows an unauthenticated attacker to read memory from an attacker-chosen device address within the same subnet. CVE-2018-10599 has been assigned to this vulnerability. A CVSS v3 base score of 6.4 has been calculated; the CVSS vector string is (AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:L). 3.2.3 STACK-BASED BUFFER OVERFLOW CWE-121 The vulnerability exposes an "echo" service, in which an attacker-sent buffer to an attacker-chosen device address within the same subnet is copied to the stack with no boundary checks, hence resulting in stack overflow. CVE-2018-10601 has been assigned to this vulnerability. A CVSS v3 base score of 8.2 has been calculated; the CVSS vector string is (AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:L/A:H). 3.3 BACKGROUND CRITICAL INFRASTRUCTURE SECTORS: Healthcare and Public Health COUNTRIES/AREAS DEPLOYED: Worldwide COMPANY HEADQUARTERS LOCATION: Netherlands 3.4 RESEARCHER Oran Avraham of Medigate, in coordination with Philips, reported these vulnerabilities to NCCIC. 4. MITIGATIONS Philips will provide a remediation patch for specific supported versions, as well as an upgrade path for all versions. Philips will communicate service options to all affected install-base users. Philips recommends users obtain associated field change and service bulletin information from Philips by accessing their InCenter account at this location: http://incenter.medical.philips.com (link is external). Please see the Philips product security website for the latest public security information on this matter and for other Philips products: https://www.philips.com/productsecurity (link is external). Philips provides the following mitigations for these vulnerabilities: In order for users of affected devices to mitigate exposure to these vulnerabilities, Philips recommends following the device's labeling, including Instructions for Use and Service Guide(s), which provide compensating controls to mitigate these vulnerabilities. Philips will provide remediation for IntelliVue software Revisions J-M and Avalon software Revisions G.0 and J.3 in 2018 in the form of a patch. For users with earlier IntelliVue software revisions, Philips provides an upgrade path for a currently-supported software revision. For upgrade options, users should contact their Philips sales representative. For IntelliVue Monitors - To mitigate these vulnerabilities; Philips recommends users follow the instructions for use (Security for Clinical Networks Guide) physical and logical security. Additionally, Philips recommends users update to Revision K.2 or newer software. For Avalon Fetal Monitors Release G.0 and Release J.3 - Philips recommends users follow the installation and service manual (Data Privacy and Network Security Requirements). For Avalon Fetal Monitors Release F.0 - Philips recommends users follow the instructions as documented in the Rev J.3 Service Guide Data Privacy and Network Security Requirements section. Users with questions regarding their specific IntelliVue and Avalon Fetal Monitor installations are advised by Philips to contact their local Philips service support team or their regional service support. Philips also recommends the following: The Philips Security for Clinical Networks guide and the IntelliVue Clinical Networks Configuration Guide, which provide instructions for the use of physical security access controls. The Avalon Revision J.3 Service Guide Data Privacy and Network Security Requirements section provides instructions for use of physical and logical security access controls. The Philips Security for Clinical Networks Guide and the IntelliVue Clinical Networks Configuration Guide, which provide instructions for use of logical security access controls. There is no clinical requirement for these devices to communicate outside of the Philips clinical network. Locate all medical devices and remote devices behind firewalls and isolate them from the business network following the recommendations documented in the Philips Security for Clinical Networks Guide, and the IntelliVue Clinical Networks Configuration Guide. NCCIC recommends that users take defensive measures to minimize the risk of exploitation of these vulnerabilities. Specifically, users should: Minimize network exposure for all control system devices and/or systems, and ensure that they are not accessible from the Internet. Locate all medical devices and remote devices behind firewalls, and isolate them from the business network. When remote access is required, use secure methods, such as Virtual Private Networks (VPNs), recognizing that VPNs may have vulnerabilities and should be updated to the most current version available. Also recognize that VPN is only as secure as the connected devices. NCCIC reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures. NCCIC also provides a section for control systems security recommended practices on the ICS-CERT web page. NCCIC reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures. Additional mitigation guidance and recommended practices are publicly available on the ICS-CERT website 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 NCCIC for tracking and correlation against other incidents. No known public exploits specifically target these vulnerabilities. These vulnerabilities are exploitable from within the same local device subnet. High skill level is needed to exploit. Contact Information For any questions related to this report, please contact the NCCIC at: Email: NCCICCUSTOMERSERVICE@hq.dhs.gov Toll Free: 1-888-282-0870 For industrial control systems cybersecurity information: http://ics-cert.us-cert.gov or incident reporting: https://ics-cert.us-cert.gov/Report-Incident? The NCCIC continuously strives to improve its products and services. You can help by choosing one of the links below to provide feedback about this product. - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. 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If you have any questions or need further information, please contact them directly. Previous advisories and external security bulletins can be retrieved from: https://www.auscert.org.au/bulletins/ =========================================================================== Australian Computer Emergency Response Team The University of Queensland Brisbane Qld 4072 Internet Email: auscert@auscert.org.au Facsimile: (07) 3365 7031 Telephone: (07) 3365 4417 (International: +61 7 3365 4417) AusCERT personnel answer during Queensland business hours which are GMT+10:00 (AEST). On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQIVAwUBWxct7GaOgq3Tt24GAQhdFA//QNt2XbH4+Nsv2qNxd+KJe1dD2f6qRsho Vyczn6SnrrcX2Xd4496bBevw0hjLiDlsUGqodShXLmWilp8jWBDh96Yo8Ge2n7/W Nu24lwq5b4iv9OYYyhgEgBIEQedtRIvcoSZDdP0s+DLeUwrCKmaUJY5C8vwAeEVw ty2YxZF7OkvKcDE5ly1prF8auOMfv/YEtDoMa27fNkWuheAcqJNdXlr5Rb7+ce4o OVx5scqxFU0HbUhBmKUg9L6c9D2l6P+xZCn71lkdTc0Un8Ur51RhuAOQcbIylBP9 fEw4Y4OCbzx7H71LmITXY/W1GuicPfSUAz/R9pFX6nB/G3Gd+V1wAfzJ63UFmmIm Mk3udjPaxR7lnzEwHN0neEgtSZCKhz+tydnDFQgCUqzVyRWoxcJEcJl2QC2KPO4f 93V+3nbaFrG5k8ObkyKBGMpL7QkX9oyAcnWR7RzKAIRSWMVma26nDB0I2bFHwoTm 5++/paGpyFET6yruMEmWiEPBKNRfcO8n8tOgXLlXdHsFw6CvVdWg9GIy0pf7Z44r lJFVAUWtezWfJvB9ixoSacfYvA9GHDYNsf+OJu4d7XpKS8KfDrm4vJGGHgxBXjlE 9MZyaW+EUNcWKX5j49wGLmQctul3QU7vpzD0rySvsSFUom9MQJThGAN9zhIC+8vQ EJ7nWBt9ZWY= =dQT8 -----END PGP SIGNATURE-----