3128 - Squid Proxy - BookJMP

Service Detection

nmap -p3128 -sC -sV -Pn TARGET

Example

PORT     STATE SERVICE    VERSION
3128/tcp open  http-proxy Squid http proxy 4.14
|_http-server-header: squid/4.14
|_http-title: ERROR: The requested URL could not be retrieved

Internal Port Scanning via Squid

Spose: Squid Port Scanner

https://github.com/aancw/spose

git clone https://github.com/aancw/spose.git
cd spose
python3 spose.py --proxy TARGET:3128 --target INTERNAL_IP

Example output

10.10.10.5:3306 seems OPEN
10.10.10.5:8080 seems OPEN