Pivoting

Binaries

You can download some useful binaries such as chisel, socat, nmap, etc: https://github.com/jpillora/chisel https://github.com/3ndG4me/socat https://github.com/andrew-d/static-binaries

Host discovery

Bash

bash -c 'n=10.10.10 ;for i in $(seq 1 254); do (timeout 2 ping -c 1 $n.$i | grep -E -o "([0-9]{1,3}\.){3}[0-9]{1,3}:" | tr -d ":" &); done; wait'

Nmap

./nmap -sn 10.10.10.0/24

ARP

arp -a

Port scan

Bash

bash -c 'ip=10.10.10.10; for port in $(seq 1 65535); do bash -c "echo > /dev/tcp/$ip/$port" > /dev/null 2>&1 && echo -e "$port\033[K" & if [ $((port % 200)) -eq 0 ]; then wait; fi; echo -ne "$port/65535\r"; done; wait'

Nmap

.\nmap -p- -sT -n -Pn -v --min-rate 5000 10.10.10.10

Proxychains

Proxychains -> Nmap

seq 1 65535 | xargs -P 500 -I {} proxychains -q nmap -sT -Pn -p{} -open --min-rate 5000 -n -vvv 10.10.10.10 2>&1 | grep -Po '\d+(?=/tcp open)'

Proxychains -> Bash

bash -c 'ip=10.10.10.10; for port in $(seq 1 65535); do proxychains -q bash -c "echo > /dev/tcp/$ip/$port" > /dev/null 2>&1 && echo -e "$port\033[K" & if [ $((port % 200)) -eq 0 ]; then wait; fi; echo -ne "$port/65535\r"; done; wait'

Port forwarding

Chisel

First, run the chisel server in reverse mode on your host:

chisel server -p 8081 --reverse

Then, connect the client to the server:

# Connect to chisel server on 10.10.10.10:8081
# Forward your 127.0.0.1:8080 to 10.10.10.20:80
chisel client 10.10.10.10:8081 R:8080:10.10.10.20:80

# Create proxy SOCKS5 on 127.0.0.1:1080
chisel client 10.10.10.10:8081 R:socks

Socat

# Forward port 8080 to 10.10.10.20:80
socat tcp-l:8080,fork,reuseaddr tcp:10.10.10.20:80

SSH

# Forward your 127.0.0.1:8080 to 10.10.10.20:80
ssh user@10.10.10.10 -L 8080:127.0.0.1:80

# Create proxy SOCKS5 on 127.0.0.1:1080
ssh user@10.10.10.10 -D 1080