Vulnerabilities > CVE-2023-23306 - Out-of-bounds Write vulnerability in Garmin Connect-Iq 2.3.0/4.1.7
Attack vector
NETWORK Attack complexity
LOW Privileges required
NONE Confidentiality impact
HIGH Integrity impact
HIGH Availability impact
HIGH Summary
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.
Vulnerable Configurations
| Part | Description | Count |
|---|---|---|
| Application | 2 |
Common Weakness Enumeration (CWE)
References
- https://developer.garmin.com/connect-iq/api-docs/Toybox/Ant/BurstPayload.html#add-instance_function
- https://developer.garmin.com/connect-iq/api-docs/Toybox/Ant/BurstPayload.html#add-instance_function
- https://github.com/anvilsecure/garmin-ciq-app-research/blob/main/advisories/CVE-2023-23306.md
- https://github.com/anvilsecure/garmin-ciq-app-research/blob/main/advisories/CVE-2023-23306.md