GE Healthcare Imaging and Ultrasound Products

1. EXECUTIVE SUMMARY

• CVSS v3 9.8
• ATTENTION: Exploitable remotely/low skill level to exploit
• Vendor: GE Healthcare
• Equipment: GE Imaging and Ultrasound Products
• Vulnerabilities: Unprotected Transport of Credentials, Exposure of Sensitive System Information to an Unauthorized Control Sphere

2. RISK EVALUATION

Successful exploitation of these vulnerabilities could occur if an attacker gains access to the healthcare delivery organization’s (HDO) network. If exploited, these vulnerabilities could allow an attacker to gain access to affected devices in a way that is comparable with GE (remote) service user privileges. A successful exploitation could expose sensitive data such as a limited set of patient health information (PHI) or could allow the attacker to run arbitrary code, which might impact the availability of the system and allow manipulation of PHI.

3. TECHNICAL DETAILS

3.1 AFFECTED PRODUCTS

The following versions of GE imaging and ultrasound products are affected:

3.2 VULNERABILITY OVERVIEW

3.2.1    UNPROTECTED TRANSPORT OF CREDENTIALS CWE-523

The affected products may allow specific credentials to be exposed during transport over the network.

CVE-2020-25175 has 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).

3.2.2    EXPOSURE OF SENSITIVE SYSTEM INFORMATION TO AN UNAUTHORIZED CONTROL SPHERE CWE-497

The affected products may allow exposed/default credentials to be utilized to access or modify sensitive information.

CVE-2020-25179 has 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).

3.3 BACKGROUND

• CRITICAL INFRASTRUCTURE SECTORS: Healthcare and Public Health
• COUNTRIES/AREAS DEPLOYED: Worldwide
• COMPANY HEADQUARTERS LOCATION: United States

3.4 RESEARCHER

Lior Bar Yosef and Elad Luz of CyberMDX reported these vulnerabilities to GE Healthcare.

4. MITIGATIONS

GE has identified mitigations for specific products and releases and will take proactive measures to ensure proper configuration of the product firewall protection and change default passwords on impacted devices where possible. GE recommends users refer to the GE Healthcare Product Security Portal for more details on mitigations and how proactive actions may apply to affected devices.

In addition to the product specific recommendations, GE recommends utilizing clinical network security best practices. Suggested clinical best practices include:

• Ensure proper segmentation of the local hospital/clinical network and create explicit access rules based on source/destination IP/port for all connections, including those used for remote support. Specific ports to consider may include those used for TELNET, FTP, REXEC, and SSH
• Utilize IPSec VPN and explicit access rules at the Internet edge before forwarding incoming connections to the local hospital/clinical network.

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.cisa.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.cisa.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 these vulnerabilities.

• GE Healthcare