mirror of
https://github.com/carlospolop/hacktricks
synced 2024-11-25 22:20:43 +00:00
115 lines
5.6 KiB
Markdown
115 lines
5.6 KiB
Markdown
# 23 - Pentesting Telnet
|
|
|
|
<details>
|
|
|
|
<summary><strong>Learn AWS hacking from zero to hero with</strong> <a href="https://training.hacktricks.xyz/courses/arte"><strong>htARTE (HackTricks AWS Red Team Expert)</strong></a><strong>!</strong></summary>
|
|
|
|
Other ways to support HackTricks:
|
|
|
|
* If you want to see your **company advertised in HackTricks** or **download HackTricks in PDF** Check the [**SUBSCRIPTION PLANS**](https://github.com/sponsors/carlospolop)!
|
|
* Get the [**official PEASS & HackTricks swag**](https://peass.creator-spring.com)
|
|
* Discover [**The PEASS Family**](https://opensea.io/collection/the-peass-family), our collection of exclusive [**NFTs**](https://opensea.io/collection/the-peass-family)
|
|
* **Join the** 💬 [**Discord group**](https://discord.gg/hRep4RUj7f) or the [**telegram group**](https://t.me/peass) or **follow** us on **Twitter** 🐦 [**@carlospolopm**](https://twitter.com/hacktricks\_live)**.**
|
|
* **Share your 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>
|
|
|
|
<figure><img src="../.gitbook/assets/image (14) (1).png" alt=""><figcaption></figcaption></figure>
|
|
|
|
**Instantly available setup for vulnerability assessment & penetration testing**. Run a full pentest from anywhere with 20+ tools & features that go from recon to reporting. We don't replace pentesters - we develop custom tools, detection & exploitation modules to give them back some time to dig deeper, pop shells, and have fun.
|
|
|
|
{% embed url="https://pentest-tools.com/" %}
|
|
|
|
## **Basic Information**
|
|
|
|
Telnet is a network protocol that gives users a UNsecure way to access a computer over a network.
|
|
|
|
**Default port:** 23
|
|
|
|
```
|
|
23/tcp open telnet
|
|
```
|
|
|
|
## **Enumeration**
|
|
|
|
### **Banner Grabbing**
|
|
|
|
```bash
|
|
nc -vn <IP> 23
|
|
```
|
|
|
|
All the interesting enumeration can be performed by **nmap**:
|
|
|
|
```bash
|
|
nmap -n -sV -Pn --script "*telnet* and safe" -p 23 <IP>
|
|
```
|
|
|
|
The script `telnet-ntlm-info.nse` will obtain NTLM info (Windows versions).
|
|
|
|
From the [telnet RFC](https://datatracker.ietf.org/doc/html/rfc854): In the TELNET Protocol are various "**options**" that will be sanctioned and may be used with the "**DO, DON'T, WILL, WON'T**" structure to allow a user and server to agree to use a more elaborate (or perhaps just different) set of conventions for their TELNET connection. Such options could include changing the character set, the echo mode, etc.
|
|
|
|
**I know it is possible to enumerate this options but I don't know how, so let me know if know how.**
|
|
|
|
### [Brute force](../generic-methodologies-and-resources/brute-force.md#telnet)
|
|
|
|
## Config file
|
|
|
|
```bash
|
|
/etc/inetd.conf
|
|
/etc/xinetd.d/telnet
|
|
/etc/xinetd.d/stelnet
|
|
```
|
|
|
|
## HackTricks Automatic Commands
|
|
|
|
```
|
|
Protocol_Name: Telnet #Protocol Abbreviation if there is one.
|
|
Port_Number: 23 #Comma separated if there is more than one.
|
|
Protocol_Description: Telnet #Protocol Abbreviation Spelled out
|
|
|
|
Entry_1:
|
|
Name: Notes
|
|
Description: Notes for t=Telnet
|
|
Note: |
|
|
wireshark to hear creds being passed
|
|
tcp.port == 23 and ip.addr != myip
|
|
|
|
https://book.hacktricks.xyz/pentesting/pentesting-telnet
|
|
|
|
Entry_2:
|
|
Name: Banner Grab
|
|
Description: Grab Telnet Banner
|
|
Command: nc -vn {IP} 23
|
|
|
|
Entry_3:
|
|
Name: Nmap with scripts
|
|
Description: Run nmap scripts for telnet
|
|
Command: nmap -n -sV -Pn --script "*telnet*" -p 23 {IP}
|
|
|
|
Entry_4:
|
|
Name: consoleless mfs enumeration
|
|
Description: Telnet enumeration without the need to run msfconsole
|
|
Note: sourced from https://github.com/carlospolop/legion
|
|
Command: msfconsole -q -x 'use auxiliary/scanner/telnet/telnet_version; set RHOSTS {IP}; set RPORT 23; run; exit' && msfconsole -q -x 'use auxiliary/scanner/telnet/brocade_enable_login; set RHOSTS {IP}; set RPORT 23; run; exit' && msfconsole -q -x 'use auxiliary/scanner/telnet/telnet_encrypt_overflow; set RHOSTS {IP}; set RPORT 23; run; exit' && msfconsole -q -x 'use auxiliary/scanner/telnet/telnet_ruggedcom; set RHOSTS {IP}; set RPORT 23; run; exit'
|
|
|
|
```
|
|
|
|
<figure><img src="../.gitbook/assets/image (14) (1).png" alt=""><figcaption></figcaption></figure>
|
|
|
|
**Instantly available setup for vulnerability assessment & penetration testing**. Run a full pentest from anywhere with 20+ tools & features that go from recon to reporting. We don't replace pentesters - we develop custom tools, detection & exploitation modules to give them back some time to dig deeper, pop shells, and have fun.
|
|
|
|
{% embed url="https://pentest-tools.com/" %}
|
|
|
|
<details>
|
|
|
|
<summary><strong>Learn AWS hacking from zero to hero with</strong> <a href="https://training.hacktricks.xyz/courses/arte"><strong>htARTE (HackTricks AWS Red Team Expert)</strong></a><strong>!</strong></summary>
|
|
|
|
Other ways to support HackTricks:
|
|
|
|
* If you want to see your **company advertised in HackTricks** or **download HackTricks in PDF** Check the [**SUBSCRIPTION PLANS**](https://github.com/sponsors/carlospolop)!
|
|
* Get the [**official PEASS & HackTricks swag**](https://peass.creator-spring.com)
|
|
* Discover [**The PEASS Family**](https://opensea.io/collection/the-peass-family), our collection of exclusive [**NFTs**](https://opensea.io/collection/the-peass-family)
|
|
* **Join the** 💬 [**Discord group**](https://discord.gg/hRep4RUj7f) or the [**telegram group**](https://t.me/peass) or **follow** us on **Twitter** 🐦 [**@carlospolopm**](https://twitter.com/hacktricks\_live)**.**
|
|
* **Share your 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>
|