Type confusion

2023-05-2320:15:00

PRIOn knowledge base

www.prio-n.com

type confusion

toybox api

out-of-bounds write

memory hijacking

firmware hijack

security vulnerability

9.4 High

AI Score

Confidence

High

0.003 Low

EPSS

Percentile

71.8%

JSON

The Toybox.Ant.BurstPayload.add API method in CIQ API version 2.2.0 through 4.1.7 suffers from a type confusion vulnreability, which can result in an out-of-bounds write operation. A malicious application could create a specially crafted Toybox.Ant.BurstPayload object, call its add method, override arbitrary memory and hijack the execution of the device’s firmware.

CPENameOperatorVersion
connect-iqge2.2.0
connect-iqle4.1.7

CPE	Name	Operator	Version
	connect-iq	ge	2.2.0
	connect-iq	le	4.1.7

References

developer.garmin.com/connect-iq/api-docs/Toybox/Ant/BurstPayload.html

github.com/anvilsecure/garmin-ciq-app-research/blob/main/advisories/CVE-2023-23306.md