Anhui Huami Mi Fit Android Application - Unencrypted Update Check (CVE-2019-19463)
Overview
"Mi Fit tracks your activity, analyzes sleep, and evaluates your workouts."
(https://play.google.com/store/apps/details?id=com.xiaomi.hm.health)
Issue
The Anhui Huami Mi Fit Android application (version 4.0.10 and below), does not encrypt the connection when it checks for an update.
Impact
An attacker who can monitor network traffic may be able to tamper with the application's update function.
Timeline
October 21, 2019 - Attempted to obtain a security contact via an email to support@amazfit.com
October 22, 2019 - Provided the details to CERT/CC
October 23, 2019 - CERT/CC opened a case for tracking
November 4, 2019 - Attempted to obtain a security contact via an email to security@xiaomi.com
Solution
Upgrade to version 4.0.11 or later
CVE-ID:
CVE-2019-19463
Questions?
Contact Information