cve/2020/CVE-2020-8289.md

### [CVE-2020-8289](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-8289)
![](https://img.shields.io/static/v1?label=Product&message=Backblaze&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Vulnerability&message=Improper%20Certificate%20Validation%20(CWE-295)&color=brighgreen)

### Description

Backblaze for Windows before 7.0.1.433 and Backblaze for macOS before 7.0.1.434 suffer from improper certificate validation in `bztransmit` helper due to hardcoded whitelist of strings in URLs where validation is disabled leading to possible remote code execution via client update functionality.

### POC

#### Reference
- https://github.com/geffner/CVE-2020-8289/blob/master/README.md
- https://github.com/geffner/CVE-2020-8289/blob/master/README.md
- https://youtu.be/W0THXbcX5V8
- https://youtu.be/W0THXbcX5V8

#### Github
- https://github.com/ARPSyndicate/cvemon
- https://github.com/NetW0rK1le3r/awesome-hacking-lists
- https://github.com/developer3000S/PoC-in-GitHub
- https://github.com/geffner/CVE-2020-8289
- https://github.com/hectorgie/PoC-in-GitHub
- https://github.com/nomi-sec/PoC-in-GitHub
- https://github.com/readloud/Awesome-Stars
- https://github.com/soosmile/POC