Is an Internet protocol that helps identify the user of a particular TCP connection.
Default port: 113
PORT STATE SERVICE113/tcp open ident
If a machine is running the service ident and samba (445) and you are connected to samba using the port 43218. You can get which user is running the samba service by doing:
If you just press enter when you conenct to the service:
Other errors:
By default (-sC) nmap will identify every user of every running port:
PORT STATE SERVICE VERSION22/tcp open ssh OpenSSH 4.3p2 Debian 9 (protocol 2.0)|_auth-owners: root| ssh-hostkey:| 1024 88:23:98:0d:9d:8a:20:59:35:b8:14:12:14:d5:d0:44 (DSA)|_ 2048 6b:5d:04:71:76:78:56:96:56:92:a8:02:30:73:ee:fa (RSA)113/tcp open ident|_auth-owners: identd139/tcp open netbios-ssn Samba smbd 3.X - 4.X (workgroup: LOCAL)|_auth-owners: root445/tcp open netbios-ssn Samba smbd 3.0.24 (workgroup: LOCAL)|_auth-owners: root
Ident-user-enum is a simple PERL script to query the ident service (113/TCP) in order to determine the owner of the process listening on each TCP port of a target system. The list of usernames gathered can be used for password guessing attacks on other network services. It can be installed with apt install ident-user-enum
.
[email protected]:/opt/local/recon/192.168.1.100# ident-user-enum 192.168.1.100 22 113 139 445ident-user-enum v1.0 ( http://pentestmonkey.net/tools/ident-user-enum )​192.168.1.100:22 root192.168.1.100:113 identd192.168.1.100:139 root192.168.1.100:445 root
oident
identd.conf