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hacktricks/network-services-pentesting/113-pentesting-ident.md

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113 - Pentesting Ident

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Basic Information

Ident protokol se koristi preko Interneta za povezivanje TCP veze sa specifičnim korisnikom. Prvobitno dizajniran da pomogne u upravljanju mrežom i bezbednosti, funkcioniše tako što omogućava serveru da upita klijenta na portu 113 kako bi zatražio informacije o korisniku određene TCP veze.

Međutim, zbog savremenih briga o privatnosti i potencijala za zloupotrebu, njegova upotreba je opala jer može nenamerno otkriti informacije o korisniku neovlašćenim stranama. Preporučuju se poboljšane mere bezbednosti, kao što su enkriptovane veze i stroge kontrole pristupa, kako bi se umanjili ovi rizici.

Podrazumevani port: 113

PORT    STATE SERVICE
113/tcp open  ident

Enumeracija

Ručna - Dobijanje korisnika/Identifikacija usluge

Ako mašina pokreće uslugu ident i samba (445) i povezani ste na sambu koristeći port 43218. Možete saznati koji korisnik pokreće samba uslugu tako što ćete uraditi:

Ako samo pritisnete enter kada se povežete na uslugu:

Druge greške:

Nmap

Podrazumevano (`-sC``) nmap će identifikovati svakog korisnika svake aktivne usluge:

PORT    STATE SERVICE     VERSION
22/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: identd
139/tcp open  netbios-ssn Samba smbd 3.X - 4.X (workgroup: LOCAL)
|_auth-owners: root
445/tcp open  netbios-ssn Samba smbd 3.0.24 (workgroup: LOCAL)
|_auth-owners: root

Ident-user-enum

Ident-user-enum je jednostavan PERL skript za upit ident servisu (113/TCP) kako bi se odredio vlasnik procesa koji sluša na svakom TCP portu ciljnog sistema. Lista korisničkih imena prikupljenih može se koristiti za napade pogađanja lozinki na drugim mrežnim servisima. Može se instalirati sa apt install ident-user-enum.

root@kali:/opt/local/recon/192.168.1.100# ident-user-enum 192.168.1.100 22 113 139 445
ident-user-enum v1.0 ( http://pentestmonkey.net/tools/ident-user-enum )

192.168.1.100:22  root
192.168.1.100:113 identd
192.168.1.100:139 root
192.168.1.100:445 root

Shodan

  • oident

Files

identd.conf

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HackTricks Automatic Commands

Protocol_Name: Ident    #Protocol Abbreviation if there is one.
Port_Number:  113     #Comma separated if there is more than one.
Protocol_Description: Identification Protocol         #Protocol Abbreviation Spelled out

Entry_1:
Name: Notes
Description: Notes for Ident
Note: |
The Ident Protocol is used over the Internet to associate a TCP connection with a specific user. Originally designed to aid in network management and security, it operates by allowing a server to query a client on port 113 to request information about the user of a particular TCP connection.

https://book.hacktricks.xyz/pentesting/113-pentesting-ident

Entry_2:
Name: Enum Users
Description: Enumerate Users
Note: apt install ident-user-enum    ident-user-enum {IP} 22 23 139 445 (try all open ports)

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