CVE-2023-23300
The `Toybox.Cryptography.Cipher.initialize` API method in CIQ API version 3.0.0 through 4.1.7 does not validate its parameters, which can result in buffer overflows when copying data.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.27%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
The `Toybox.Cryptography.Cipher.initialize` API method in CIQ API version 3.0.0 through 4.1.7 does not validate its parameters, which can result in buffer overflows when copying data. A malicious application could call the API method with specially crafted parameters 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
- 1.27% probability · 68th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-120
- Affected
- garmin/connect-iq
- Source
- cve@mitre.org
References
- https://developer.garmin.com/connect-iq/api-docs/Toybox/Cryptography/Cipher.html#initialize-instance_functionProduct
- https://github.com/anvilsecure/garmin-ciq-app-research/blob/main/advisories/CVE-2023-23300.mdExploit
- https://developer.garmin.com/connect-iq/api-docs/Toybox/Cryptography/Cipher.html#initialize-instance_functionProduct
- https://github.com/anvilsecure/garmin-ciq-app-research/blob/main/advisories/CVE-2023-23300.mdExploit
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.