SB2019032520 - Multiple vulnerabilities in several Medtronic products

Description

This security bulletin contains information about 2 vulnerabilities.

1) Cleartext transmission of sensitive information (CVE-ID: CVE-2019-6540)

CWE-ID: CWE-319 - Cleartext Transmission of Sensitive Information

CVSSv4: CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a remote attacker to gain access to sensitive information.

The vulnerability exists due to the Conexus telemetry protocol uses insecure communication channel to transmit sensitive information. A remote attacker on the local network with ability to intercept network traffic can gain access to sensitive data.

2) Improper access control (CVE-ID: CVE-2019-6538)

CWE-ID: CWE-284 - Improper Access Control

CVSSv4: CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a remote attacker to gain unauthorized access to otherwise restricted functionality.

The vulnerability exists due to improper access restrictions in the Conexus Radio Frequency Telemetry Protocol. A remote attacker on the local network, when the product’s radio is turned on, can inject, replay, modify, and/or intercept data within the telemetry communication. This communication protocol provides the ability to read and write memory values to affected implanted cardiac devices; therefore, an attacker could exploit this communication protocol to change memory in the implanted cardiac device.

Remediation

Cybersecurity Help is not aware of any official remediation provided by the vendor.

References

• http://www.securityfocus.com/bid/107544
• https://ics-cert.us-cert.gov/advisories/ICSMA-19-080-01