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Rewterz Threat Advisory – CVE-2019-18426 – WhatsApp Bug Allows Malicious Code-Injection
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February 7, 2020

Rewterz Threat Advisory – ICS: Medtronic Conexus Radio Frequency Telemetry Protocol

February 7, 2020

Severity

High

Analysis Summary

CVE-2019-6538

The Conexus telemetry protocol utilized within this ecosystem does not implement authentication or authorization. An attacker with adjacent short-range access to an affected product, in situations where 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.

CVE-2019-6540

The Conexus telemetry protocol utilized within this ecosystem does not implement encryption. An attacker with adjacent short-range access to a target product can listen to communications, including the transmission of sensitive data.

Impact

  • Improper Access Control 
  • Cleartext Transmission of Sensitive Information

Affected Vendors

Medtronic

Affected Products

MyCareLink Monitor

CareLink Monitor
CareLink 2090 Programmer
specific Medtronic implanted cardiac devices

Remediation

For the list of more affected products, please refer to ICS advisory:

https://www.us-cert.gov/ics/advisories/ICSMA-19-080-01

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