help of a remote code execution vulnerability. In order to do so, an attacker needs to gain access to a Pebble smartwatch with the attacker-controlled application installed. Then, the attacker needs to find a specific unauthenticated remote code execution in the application that can be exploited to gain full control of the smartwatch. Exploiting this issue on a smartwatch is really hard due to the nature of the smartwatch implementation. However, if the attacker gains access to the smartwatch, this issue can be exploited to gain full control of the smartwatch. Pebble Templates 3.1.5 allows attackers to bypass a protection mechanism and implement arbitrary code execution with springbok

Pebble Templates 3.1.5 allows attackers to bypass a protection mechanism and implement arbitrary code execution with springbok

Pebble Templates 3.1.5 allows attackers to bypass a protection mechanism and implement arbitrary code execution with springbok

Pebble Templates 3.1.5 allows attackers to bypass a protection mechanism and implement arbitrary code execution with springbok

Pebble Templates 3.1.5 allows attackers to bypass a protection mechanism and implement arbitrary code execution with springbok

Pebble Templates 3.1.5 allows attackers to bypass a protection mechanism and implement arbitrary code execution with springbok

Pebble Templates 3.1.5 allows attackers to bypass a protection mechanism and implement arbitrary code execution

Installation of Pebble Templates 3.1.5

The first step in achieving remote code execution is getting Pebble Templates 3.1.5 onto the smartwatch. To do this, the attacker needs to install it on their own watch, which is not easy because of the way the application is implemented on the smartwatch and how it interacts with Pebble OS. However, if the attacker gains access to a smartwatch that has already been installed with Pebble Templates 3.1.5, then this issue can be exploited to gain full control of the smartwatch.

Background

Pebble is a smartwatch that runs on Android, iOS and Windows. It was released in 2013 and is now part of the Pebble time line. The Pebble watch can be paired with a mobile device to receive notifications, make remote controls, track fitness data, and more.

Summary

A remote code execution vulnerability in the Pebble Templates application allows an attacker to gain full control of the smartwatch. This issue can be exploited to gain control of a smartwatch without authentication.

Vulnerability: Remote Code Execution
Impact: Full Control of Smartwatch
CVE-2022-37767

Software Overview

Pebble Templates is a software that helps developers create smartwatch apps. It contains templates for watch faces, time applications, notifiers and more. It has a command-line interface to help developers generate app code from the templates.

A remote code execution vulnerability exists in Pebble Templates 3.1.5 due to lack of input validation on the templates directory listing. An attacker can access this vulnerability by gaining access to a Pebble smartwatch with the attacker-controlled application installed. The attacker then needs to find a specific unauthenticated remote code execution in the application that can be exploited to gain control of the smartwatch. Exploiting this issue on a smartwatch is really hard due to the nature of the smartwatch implementation, but if an attacker gains access, they can exploit this issue to gain full control over the smartwatch.

Timeline

Published on: 09/12/2022 14:15:00 UTC
Last modified on: 09/15/2022 04:04:00 UTC

References