cve/2019/CVE-2019-16516.md

### [CVE-2019-16516](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-16516)
![](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

An issue was discovered in ConnectWise Control (formerly known as ScreenConnect) 19.3.25270.7185. There is a user enumeration vulnerability, allowing an unauthenticated attacker to determine with certainty if an account exists for a given username.

### POC

#### Reference
- http://packetstormsecurity.com/files/165432/ConnectWise-Control-19.2.24707-Username-Enumeration.html
- https://blog.huntresslabs.com/validating-the-bishop-fox-findings-in-connectwise-control-9155eec36a34
- https://know.bishopfox.com/advisories
- https://know.bishopfox.com/advisories/connectwise-control

#### Github
- https://github.com/ARPSyndicate/cvemon
- https://github.com/Enes4xd/Enes4xd
- https://github.com/cr0ss2018/cr0ss2018
- https://github.com/czz/ScreenConnect-UserEnum
- https://github.com/ezelnur6327/Enes4xd
- https://github.com/ezelnur6327/enesamaafkolan
- https://github.com/ezelnur6327/ezelnur6327