Mirrors/hacktricks
2
0
Fork 0
mirror of https://github.com/carlospolop/hacktricks synced 2024-11-23 13:13:41 +00:00
Code Issues Projects Releases Packages Wiki Activity
hacktricks/network-services-pentesting/135-pentesting-msrpc.md

9.1 KiB
Raw Blame History

135, 593 - Pentesting MSRPC

{% hint style="success" %} Learn & practice AWS Hacking:HackTricks Training AWS Red Team Expert (ARTE)
Learn & practice GCP Hacking: HackTricks Training GCP Red Team Expert (GRTE)

Support HackTricks
{% endhint %}

Join HackenProof Discord server to communicate with experienced hackers and bug bounty hunters!

Hacking Insights
Engage with content that delves into the thrill and challenges of hacking

Real-Time Hack News
Keep up-to-date with fast-paced hacking world through real-time news and insights

Latest Announcements
Stay informed with the newest bug bounties launching and crucial platform updates

Join us on Discord and start collaborating with top hackers today!

Basic Information

Protokol Microsoft Remote Procedure Call (MSRPC), model klijent-server koji omogućava programu da zatraži uslugu od programa koji se nalazi na drugom računaru bez razumevanja specifičnosti mreže, prvobitno je izveden iz softvera otvorenog koda, a kasnije je razvijen i zaštićen autorskim pravima od strane Microsoft-a.

RPC endpoint mapper može se pristupiti putem TCP i UDP porta 135, SMB na TCP 139 i 445 (sa null ili autentifikovanom sesijom), i kao web servis na TCP portu 593.

135/tcp   open     msrpc         Microsoft Windows RPC

Kako funkcioniše MSRPC?

Iniciran od strane klijentske aplikacije, MSRPC proces uključuje pozivanje lokalne stub procedure koja zatim interaguje sa klijentskom runtime bibliotekom kako bi pripremila i prenela zahtev serveru. Ovo uključuje konvertovanje parametara u standardni format Network Data Representation. Izbor transportnog protokola određuje runtime biblioteka ako je server udaljen, osiguravajući da se RPC isporučuje kroz mrežni stek.

https://0xffsec.com/handbook/images/msrpc.png

Identifikacija izloženih RPC usluga

Izloženost RPC usluga preko TCP, UDP, HTTP i SMB može se odrediti upitom RPC locator servisa i pojedinačnih krajnjih tačaka. Alati kao što je rpcdump olakšavaju identifikaciju jedinstvenih RPC usluga, označenih IFID vrednostima, otkrivajući detalje usluga i komunikacione veze:

D:\rpctools> rpcdump [-p port] <IP>
**IFID**: 5a7b91f8-ff00-11d0-a9b2-00c04fb6e6fc version 1.0
Annotation: Messenger Service
UUID: 00000000-0000-0000-0000-000000000000
Binding: ncadg_ip_udp:<IP>[1028]

Pristup RPC lokatorskoj usluzi omogućen je putem specifičnih protokola: ncacn_ip_tcp i ncadg_ip_udp za pristup preko porta 135, ncacn_np za SMB veze, i ncacn_http za web-baziranu RPC komunikaciju. Sledeće komande ilustruju korišćenje Metasploit modula za audite i interakciju sa MSRPC uslugama, prvenstveno fokusirajući se na port 135:

use auxiliary/scanner/dcerpc/endpoint_mapper
use auxiliary/scanner/dcerpc/hidden
use auxiliary/scanner/dcerpc/management
use auxiliary/scanner/dcerpc/tcp_dcerpc_auditor
rpcdump.py <IP> -p 135

All options except tcp_dcerpc_auditor are specifically designed for targeting MSRPC on port 135.

Notable RPC interfaces

  • IFID: 12345778-1234-abcd-ef00-0123456789ab
  • Named Pipe: \pipe\lsarpc
  • Description: LSA interfejs, koristi se za enumeraciju korisnika.
  • IFID: 3919286a-b10c-11d0-9ba8-00c04fd92ef5
  • Named Pipe: \pipe\lsarpc
  • Description: LSA interfejs za usluge direktorijuma (DS), koristi se za enumeraciju domena i odnosa poverenja.
  • IFID: 12345778-1234-abcd-ef00-0123456789ac
  • Named Pipe: \pipe\samr
  • Description: LSA SAMR interfejs, koristi se za pristup javnim elementima SAM baze podataka (npr. korisnička imena) i brute-force napade na lozinke korisnika bez obzira na politiku zaključavanja naloga.
  • IFID: 1ff70682-0a51-30e8-076d-740be8cee98b
  • Named Pipe: \pipe\atsvc
  • Description: Planer zadataka, koristi se za daljinsko izvršavanje komandi.
  • IFID: 338cd001-2244-31f1-aaaa-900038001003
  • Named Pipe: \pipe\winreg
  • Description: Usluga daljinskog registra, koristi se za pristup i modifikaciju sistemskog registra.
  • IFID: 367abb81-9844-35f1-ad32-98f038001003
  • Named Pipe: \pipe\svcctl
  • Description: Menadžer kontrole usluga i server usluga, koristi se za daljinsko pokretanje i zaustavljanje usluga i izvršavanje komandi.
  • IFID: 4b324fc8-1670-01d3-1278-5a47bf6ee188
  • Named Pipe: \pipe\srvsvc
  • Description: Menadžer kontrole usluga i server usluga, koristi se za daljinsko pokretanje i zaustavljanje usluga i izvršavanje komandi.
  • IFID: 4d9f4ab8-7d1c-11cf-861e-0020af6e7c57
  • Named Pipe: \pipe\epmapper
  • Description: DCOM interfejs, koristi se za brute-force napade na lozinke i prikupljanje informacija putem WM.

Identifying IP addresses

Using https://github.com/mubix/IOXIDResolver, comes from Airbus research is possible to abuse the ServerAlive2 method inside the IOXIDResolver interface.

This method has been used to get interface information as IPv6 address from the HTB box APT. See here for 0xdf APT writeup, it includes an alternative method using rpcmap.py from Impacket with stringbinding (see above).

Executing a RCE with valid credentials

It is possible to execute remote code on a machine, if the credentials of a valid user are available using dcomexec.py from impacket framework.

Remember to try with the different objects available

  • ShellWindows
  • ShellBrowserWindow
  • MMC20

Port 593

The rpcdump.exe from rpctools can interact with this port.

References

Join HackenProof Discord server to communicate with experienced hackers and bug bounty hunters!

Hacking Insights
Engage with content that delves into the thrill and challenges of hacking

Real-Time Hack News
Keep up-to-date with fast-paced hacking world through real-time news and insights

Latest Announcements
Stay informed with the newest bug bounties launching and crucial platform updates

Join us on Discord and start collaborating with top hackers today!

{% hint style="success" %} Learn & practice AWS Hacking:HackTricks Training AWS Red Team Expert (ARTE)
Learn & practice GCP Hacking: HackTricks Training GCP Red Team Expert (GRTE)

Support HackTricks
{% endhint %}