### [CVE-2018-3875](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-3875)
![](https://img.shields.io/static/v1?label=Product&message=SmartThings%20Hub%20STH-ETH-250&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Vulnerability&message=Classic%20Buffer%20Overflow&color=brighgreen)

### Description

An exploitable buffer overflow vulnerability exists in the credentials handler of video-core's HTTP server of Samsung SmartThings Hub STH-ETH-250-Firmware version 0.20.17. The video-core process incorrectly extracts fields from a user-controlled JSON payload, leading to a buffer overflow on the stack. The strncpy overflows the destination buffer, which has a size of 2,000 bytes. An attacker can send an arbitrarily long "sessionToken" value in order to exploit this vulnerability.

### POC

#### Reference
- https://talosintelligence.com/vulnerability_reports/TALOS-2018-0555
- https://talosintelligence.com/vulnerability_reports/TALOS-2018-0555

#### Github
No PoCs found on GitHub currently.