CVE-2023-23306
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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.21%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a 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.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 1.21% probability · 67th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-787
- Affected
- garmin/connect-iq
- Source
- cve@mitre.org
References
- https://developer.garmin.com/connect-iq/api-docs/Toybox/Ant/BurstPayload.html#add-instance_functionProduct
- https://github.com/anvilsecure/garmin-ciq-app-research/blob/main/advisories/CVE-2023-23306.mdExploit
- https://developer.garmin.com/connect-iq/api-docs/Toybox/Ant/BurstPayload.html#add-instance_functionProduct
- https://github.com/anvilsecure/garmin-ciq-app-research/blob/main/advisories/CVE-2023-23306.mdExploit
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.