Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2020.0627 ICS Medical Advisory (ICSMA-20-049-02) 21 February 2020 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: GE Ultrasound products Publisher: ICS-CERT Operating System: Network Appliance Impact/Access: Unauthorised Access -- Console/Physical Resolution: Mitigation CVE Names: CVE-2020-6977 Original Bulletin: https://www.us-cert.gov/ics/advisories/icsma-20-049-02 - --------------------------BEGIN INCLUDED TEXT-------------------- ICS Medical Advisory (ICSMA-20-049-02) GE Ultrasound products Original release date: February 18, 2020 Legal Notice All information products included in https://us-cert.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://www.us-cert.gov/tlp/ . 1. EXECUTIVE SUMMARY o CVSS v3 6.8 o ATTENTION: Low skill level to exploit o Vendor: GE o Equipment: Ultrasound Products o Vulnerability: Protection Mechanism Failure 2. RISK EVALUATION The affected GE Healthcare ultrasound devices utilize a method of software application implementation called "Kiosk Mode." This Kiosk Mode is vulnerable to local breakouts, which could allow an attacker with physical access to gain access to the operating system of affected devices. 3. TECHNICAL DETAILS 3.1 AFFECTED PRODUCTS The following versions of GE ultrasound products are affected: o Vivid products, all versions o LOGIQ, all versions, not including LOGIQ 100 Pro o Voluson, all versions o Versana Essential, all versions o Invenia ABUS Scan station, all versions o Venue, all versions, not including Venue 40 R1-3 and Venue 50 R4-5 3.2 VULNERABILITY OVERVIEW 3.2.1 PROTECTIONS MECHANISM FAILURE CWE-693 A restricted desktop environment escape vulnerability exists in the Kiosk Mode functionality of affected devices. Specially crafted inputs can allow the user to escape the restricted environment, resulting in access to the underlying operating system. CVE-2020-6977 has been assigned to this vulnerability. A CVSS v3 base score of 6.8 has been calculated; the CVSS vector string is ( AV:P/AC:L/PR:N/UI:N/S:U/ C:H/I:H/A:H ). 3.3 BACKGROUND o CRITICAL INFRASTRUCTURE SECTORS: Healthcare and Public Health o COUNTRIES/AREAS DEPLOYED: Worldwide o COMPANY HEADQUARTERS LOCATION: United States 3.4 RESEARCHER This vulnerability was first reported to GE Healthcare by researchers Marc Ruef and Rocco Gagliardi of scip AG. Additional reports were provided to GE Healthcare by Michael Aguilar of Secureworks and Jonathan Bouman of Protozoan.nl. 4. MITIGATIONS GE Healthcare recommends organizations restrict physical access to devices by unauthorized individuals. Additionally, where available, GE recommends users enable the "system lock" password in the Administration GUI menu if possible. This will require a password to be entered before the system can be accessed. The 'system lock' would limit non-authenticated users from accessing the application. GE recommends that users with questions reach out to a GE service representative and users with an active support account visit https:// securityupdate.gehealthcare.com (login required). CISA recommends users take defensive measures to minimize the risk of exploitation of this vulnerability. Specifically, users should: o Ensure there is physical protections in place to prevent the devices from any unauthorized access. o Encourage security awareness throughout the hospital staff to ensure clinical staff will report any unauthorized person trying to login or otherwise tamper with a medical device. o Educate employees on social engineering, both online and in-person/on-site. This is often used to gain confidence to unauthorized resources. o Where additional information is needed, refer to existing cybersecurity in medical device guidance issued by the FDA. CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures. CISA also provides a section for control systems security recommended practices on the ICS webpage on us-cert.gov . 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 webpage on us-cert.gov 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 CISA for tracking and correlation against other incidents. No known public exploits specifically target this vulnerability. This vulnerability is not exploitable remotely. For any questions related to this report, please contact the CISA at: Email: CISAservicedesk@cisa.dhs.gov Toll Free: 1-888-282-0870 CISA 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. 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). On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQIVAwUBXk9XIGaOgq3Tt24GAQif4w/8CzqgXZTQjbJxiAwZ3wZsSVsu/9nUsyEZ VvMaeOmQ8UGUfo8YfZL56NRKi+90VjWqLGNr4ZJq/NXDVtzScY9r+EdLGQUIVKIV JzeTTt9KbecZLX3/dL3RnXikspH+3pI44CSOx6wkcjcUDyprhm6SiqB3C+YiEfrO RrXjnollz5dqofMhSyRXK3lYcz1VvL5vev87fwV07Khbcf/1q8xMOCw9P8CU/kuZ 4wbc9usrCD7XjoqBWyeiqwN0jwTw2CiJcMf54QOrt8dp5BzPgTSctu6+labkBr1f katuYPJe0ZcVVHCixddsCxb0qV8Bw3z0EU57bgKMix7NGxHc6aU7h9FSgLDEil7p jEesFDJ10XgPDM97/Z7LAoKLIPOS574i0PVvnU9kcWS40PZG2NjJHh/GW54ibj1b 7t96517/NL15DiK9gYTo3UVAkDTN164/7esxQgv00lyn9Jj+9lw1mpRXPQIScU9V SkAmM/iSQOMOZmJP2/pyhJG0zXckzrJXUQYN4anWtGlbZyReHpduhsd1v4TQagIV Xx9MDEj5402HRSMYmTfuvjAg4yLLAYDotHAC+RBL3AVSVTw9xWIZ5SXVlonYkdYb XvbySQdMp3GuffJGGqxM8q0UBptqb/cy+C3Pjk8qV8MLKK0SKJaSaRCY1/KnjgXs f3QXZAXn4FU= =TH+1 -----END PGP SIGNATURE-----