CVE-2023-23306

Public Exploit

Description

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.

Category

9.8
CVSS
Severity: Critical
CVSS 3.1 •
EPSS 0.51%
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://developer.garmin.com/connect-iq/api-docs/Toybox/Ant/BurstPayload.html#add-instance_function product
https://github.com/anvilsecure/garmin-ciq-app-research/blob/main/advisories/CVE-2023-23306.md exploit

Frequently Asked Questions

What is the severity of CVE-2023-23306?
CVE-2023-23306 has been scored as a critical severity vulnerability.
How to fix CVE-2023-23306?
To fix CVE-2023-23306, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-23306 being actively exploited in the wild?
It is possible that CVE-2023-23306 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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