# 110,995 - Pentesting POP
Naučite hakovanje AWS-a od nule do heroja sa htARTE (HackTricks AWS Red Team Expert)! * Da li radite u **kompaniji za kibernetičku bezbednost**? Želite li da vidite svoju **kompaniju reklamiranu na HackTricks**? ili želite pristup **najnovijoj verziji PEASS-a ili preuzimanje HackTricks-a u PDF formatu**? Proverite [**PLANOVE ZA PRIJAVU**](https://github.com/sponsors/carlospolop)! * Otkrijte [**Porodicu PEASS**](https://opensea.io/collection/the-peass-family), našu kolekciju ekskluzivnih [**NFT-ova**](https://opensea.io/collection/the-peass-family) * Nabavite [**zvanični PEASS & HackTricks swag**](https://peass.creator-spring.com) * **Pridružite se** [**💬**](https://emojipedia.org/speech-balloon/) [**Discord grupi**](https://discord.gg/hRep4RUj7f) ili [**telegram grupi**](https://t.me/peass) ili me **pratite** na **Twitteru** 🐦[**@carlospolopm**](https://twitter.com/hacktricks\_live)**.** * **Podelite svoje hakovanje trikova slanjem PR-ova** [**hacktricks repozitorijumu**](https://github.com/carlospolop/hacktricks) **i** [**hacktricks-cloud repozitorijumu**](https://github.com/carlospolop/hacktricks-cloud).
**Try Hard Security Group**
{% embed url="https://discord.gg/tryhardsecurity" %} *** ## Osnovne Informacije **Protokol za poštanski servis (POP)** je opisan kao protokol unutar oblasti računarskih mreža i Interneta, koji se koristi za izvlačenje i **preuzimanje emailova sa udaljenog mail servera**, čime se omogućava pristup na lokalnom uređaju. Pozicioniran unutar aplikativnog sloja OSI modela, ovaj protokol omogućava korisnicima da preuzimaju i primaju emailove. Rad **POP klijenata** obično uključuje uspostavljanje veze sa mail serverom, preuzimanje svih poruka, čuvanje ovih poruka lokalno na klijentskom sistemu, i naknadno njihovo uklanjanje sa servera. Iako postoje tri iteracije ovog protokola, **POP3** se ističe kao najčešće korišćena verzija. **Podrazumevani portovi:** 110, 995(ssl) ``` PORT STATE SERVICE 110/tcp open pop3 ``` ## Enumeracija ### Preuzimanje banera ```bash nc -nv 110 openssl s_client -connect :995 -crlf -quiet ``` ## Ručno Možete koristiti komandu `CAPA` da biste dobili mogućnosti POP3 servera. ## Automatizovano ```bash nmap --script "pop3-capabilities or pop3-ntlm-info" -sV -port #All are default scripts ``` `pop3-ntlm-info` plugin će vratiti neke "**osetljive**" podatke (verzije Windows-a). ### [POP3 brute force](../generic-methodologies-and-resources/brute-force.md#pop) ## POP sintaksa Primeri POP komandi sa [ovde](http://sunnyoasis.com/services/emailviatelnet.html) ```bash POP commands: USER uid Log in as "uid" PASS password Substitue "password" for your actual password STAT List number of messages, total mailbox size LIST List messages and sizes RETR n Show message n DELE n Mark message n for deletion RSET Undo any changes QUIT Logout (expunges messages if no RSET) TOP msg n Show first n lines of message number msg CAPA Get capabilities ``` ### Post Office Protocol (POP) POP is a protocol used by email clients to retrieve email from a mail server. During a penetration test, you can attempt to brute force POP credentials or use tools like Hydra to automate the process. Additionally, you can look for misconfigurations or vulnerabilities in the POP server that could lead to unauthorized access. ``` root@kali:~# telnet $ip 110 +OK beta POP3 server (JAMES POP3 Server 2.3.2) ready USER billydean +OK PASS password +OK Welcome billydean list +OK 2 1807 1 786 2 1021 retr 1 +OK Message follows From: jamesbrown@motown.com Dear Billy Dean, Here is your login for remote desktop ... try not to forget it this time! username: billydean password: PA$$W0RD!Z ``` ## Opasne postavke Sa [https://academy.hackthebox.com/module/112/section/1073](https://academy.hackthebox.com/module/112/section/1073) | **Postavka** | **Opis** | | ------------------------- | ----------------------------------------------------------------------------------------- | | `auth_debug` | Omogućava sve zapise za debagovanje autentikacije. | | `auth_debug_passwords` | Ova postavka podešava nivo detalja zapisa, unete lozinke i šema se beleže. | | `auth_verbose` | Beleže se neuspešni pokušaji autentikacije i njihovi razlozi. | | `auth_verbose_passwords` | Lozinke korišćene za autentikaciju se beleže i mogu biti skraćene. | | `auth_anonymous_username` | Ovo određuje korisničko ime koje će se koristiti prilikom prijavljivanja pomoću ANONYMOUS SASL mehanizma. | **Try Hard Security Group**
{% embed url="https://discord.gg/tryhardsecurity" %} ## HackTricks Automatske Komande ``` Protocol_Name: POP #Protocol Abbreviation if there is one. Port_Number: 110 #Comma separated if there is more than one. Protocol_Description: Post Office Protocol #Protocol Abbreviation Spelled out Entry_1: Name: Notes Description: Notes for POP Note: | Post Office Protocol (POP) is described as a protocol within the realm of computer networking and the Internet, which is utilized for the extraction and retrieval of email from a remote mail server**, making it accessible on the local device. Positioned within the application layer of the OSI model, this protocol enables users to fetch and receive email. The operation of POP clients typically involves establishing a connection to the mail server, downloading all messages, storing these messages locally on the client system, and subsequently removing them from the server. Although there are three iterations of this protocol, POP3 stands out as the most prevalently employed version. https://book.hacktricks.xyz/network-services-pentesting/pentesting-pop Entry_2: Name: Banner Grab Description: Banner Grab 110 Command: nc -nv {IP} 110 Entry_3: Name: Banner Grab 995 Description: Grab Banner Secure Command: openssl s_client -connect {IP}:995 -crlf -quiet Entry_4: Name: Nmap Description: Scan for POP info Command: nmap --script "pop3-capabilities or pop3-ntlm-info" -sV -p 110 {IP} Entry_5: Name: Hydra Brute Force Description: Need User Command: hydra -l {Username} -P {Big_Passwordlist} -f {IP} pop3 -V Entry_6: Name: consolesless mfs enumeration Description: POP3 enumeration without the need to run msfconsole Note: sourced from https://github.com/carlospolop/legion Command: msfconsole -q -x 'use auxiliary/scanner/pop3/pop3_version; set RHOSTS {IP}; set RPORT 110; run; exit' ```
Naučite hakovanje AWS-a od nule do heroja sa htARTE (HackTricks AWS Red Team Expert)! * Da li radite u **kompaniji za kibernetičku bezbednost**? Želite li da vidite svoju **kompaniju reklamiranu na HackTricks**? ili želite pristup **najnovijoj verziji PEASS ili preuzimanje HackTricks u PDF formatu**? Proverite [**PLANOVE ZA PRETPLATU**](https://github.com/sponsors/carlospolop)! * Otkrijte [**Porodicu PEASS**](https://opensea.io/collection/the-peass-family), našu kolekciju ekskluzivnih [**NFT-ova**](https://opensea.io/collection/the-peass-family) * Nabavite [**zvanični PEASS & HackTricks swag**](https://peass.creator-spring.com) * **Pridružite se** [**💬**](https://emojipedia.org/speech-balloon/) [**Discord grupi**](https://discord.gg/hRep4RUj7f) ili [**telegram grupi**](https://t.me/peass) ili me **pratite** na **Twitteru** 🐦[**@carlospolopm**](https://twitter.com/hacktricks\_live)**.** * **Podelite svoje hakovanje trikove slanjem PR-ova u** [**hacktricks repozitorijum**](https://github.com/carlospolop/hacktricks) **i** [**hacktricks-cloud repozitorijum**](https://github.com/carlospolop/hacktricks-cloud).