cve/2018/CVE-2018-20817.md

### [CVE-2018-20817](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-20817)
![](https://img.shields.io/static/v1?label=Product&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Vulnerability&message=n%2Fa&color=brighgreen)

### Description

SV_SteamAuthClient in various Activision Infinity Ward Call of Duty games before 2015-08-11 is missing a size check when reading authBlob data into a buffer, which allows one to execute code on the remote target machine when sending a steam authentication request. This affects Call of Duty: Modern Warfare 2, Call of Duty: Modern Warfare 3, Call of Duty: Ghosts, Call of Duty: Advanced Warfare, Call of Duty: Black Ops 1, and Call of Duty: Black Ops 2.

### POC

#### Reference
- https://github.com/RektInator/cod-steamauth-rce
- https://github.com/momo5502/cod-exploits/tree/master/steam-auth

#### Github
- https://github.com/RektInator/cod-steamauth-rce
- https://github.com/momo5502/cod-exploits