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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2018.2386 Advisory (ICSMA-18-226-01) Philips IntelliSpace Cardiovascular Vulnerabilities 16 August 2018 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Philips IntelliSpace Cardiovascula Publisher: ICS-CERT Operating System: Network Appliance Impact/Access: Execute Arbitrary Code/Commands -- Existing Account Increased Privileges -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2018-14789 CVE-2018-14787 Original Bulletin: https://ics-cert.us-cert.gov/advisories/ICSMA-18-226-01 - --------------------------BEGIN INCLUDED TEXT-------------------- Advisory (ICSMA-18-226-01) Philips IntelliSpace Cardiovascular Vulnerabilities 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 o CVSS v3 7.3 o ATTENTION: Low skill level to exploit o Vendor: Philips o Equipment: Philips' IntelliSpace Cardiovascular (ISCV) products o Vulnerabilities: Improper Privilege Management, Unquoted Search Path or Element 2. RISK EVALUATION Successful exploitation of these vulnerabilities could allow an attacker with local access and users privileges to the ISCV/Xcelera server to escalate privileges on the ISCV/Xcelera server and execute arbitrary code. 3. TECHNICAL DETAILS 3.1 AFFECTED PRODUCTS The following versions of Philips' IntelliSpace Cardiovascular (ISCV) products, a comprehensive cardiac image and information management software, are affected: o IntelliSpace Cardiovascular, Version 3.1 or prior, and o Xcelera Version 4.1 or prior. 3.2 VULNERABILITY OVERVIEW 3.2.1 IMPROPER PRIVILEGE MANAGEMENT CWE-269 For ISCV Version 2.x or prior and Xcelera Version 4.1 or prior, an attacker with escalated privileges could access folders which contain executables where authenticated users have write permissions, and could then execute arbitrary code with local administrative permissions. CVE-2018-14787 has been assigned to this vulnerability. A CVSS v3 base score of 7.3 has been calculated; the CVSS vector string is (AV:L/AC:L/PR:L/UI:N/S:U /C:L/I:H/A:H). 3.2.2 UNQUOTED SEARCH PATH OR ELEMENT CWE-428 For ISCV Version 3.1 or prior and Xcelera Version 4.1 or prior, an unquoted search path or element vulnerability has been identified, which may allow an attacker to execute arbitrary code and escalate their level of privileges. CVE-2018-14789 has been assigned to this vulnerability. A CVSS v3 base score of 4.2 has been calculated; the CVSS vector string is (AV:L/AC:L/PR:H/UI:N/S:U /C:L/I:L/A:L). 3.3 BACKGROUND o CRITICAL INFRASTRUCTURE SECTORS: Healthcare and Public Health o COUNTRIES/AREAS DEPLOYED: Worldwide o COMPANY HEADQUARTERS LOCATION: Netherlands 3.4 RESEARCHER Philips reported these vulnerabilities to NCCIC. 4. MITIGATIONS For ISCV Version 2.x or prior and Xcelera Version 4.1 or prior, this has been mitigated in ISCV 3.1. Users should contact their local Philips service support team of their regional service support for upgrade instructions. For ISCV Version 3.1 or prior and Xcelera Version 4.1 or prior, this will be mitigated in ISCV Version 3.2, scheduled to be released in October 2018. As an interim mitigation to the vulnerabilities until ISCV Version 3.2 can be applied, Philips recommends that users: o Review their file permission policies and where possible restrict available permissions. Users with questions regarding their specific IntelliSpace Cardiovascular installations are advised by Philips to contact their local Philips service support team or their regional service support. Philips contact information is available at the following location: https://www.usa.philips.com/healthcare/solutions/customer-service-solutions (link is external). Please see the Philips product security website for the latest security information for Philips products: https://www.philips.com/productsecurity (link is external). NCCIC recommends users take defensive measures to minimize the risk of exploitation of this vulnerability. Specifically, users should: o Minimize network exposure for all control system devices and/or systems, and ensure that they are not accessible from the Internet. o Locate control system networks and remote devices behind firewalls, and isolate them from the business network. o 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. Several recommended practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies. 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 not exploitable remotely. - --------------------------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. NOTE: Third Party Rights This security bulletin is provided as a service to AusCERT's members. As AusCERT did not write the document quoted above, AusCERT has had no control over its content. The decision to follow or act on information or advice contained in this security bulletin is the responsibility of each user or organisation, and should be considered in accordance with your organisation's site policies and procedures. AusCERT takes no responsibility for consequences which may arise from following or acting on information or advice contained in this security bulletin. NOTE: This is only the original release of the security bulletin. It may not be updated when updates to the original are made. If downloading at a later date, it is recommended that the bulletin is retrieved directly from the author's website to ensure that the information is still current. Contact information for the authors of the original document is included in the Security Bulletin above. 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). 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