full-disclosure - another filename bypass vulnerability

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Date: Thu Nov 17 19:47:38 2005
From: hracciatti at gmail.com (Hernán M. Racciatti)
Subject: another filename bypass vulnerability - from
	cmd.exe

On 11/16/05, Aditya Deshmukh
<aditya.deshmukh@...ine.gateway.strangled.net> wrote:
> Was doing some testing [xfocus-AD-051115]
> The system is windows 2000 sp4 srp5 with
> all other patches upto date.
> At the command prompt cmd.exe execute
> the following with the results.
>
> E:\TEMP>cd test
> E:\TEMP\test>copy %windir%\system32\calc.exe
>         1 file(s) copied.
> E:\TEMP\test>ren calc.exe calc.exe.zip
> E:\TEMP\test>dir /b
> calc.exe.zip
> E:\TEMP\test>calc.exe.zip
> E:\TEMP\test>
> -------------------------------------------------------------------
> This bring up the calc.exe on the screen.

Hi guys, check this...

Windows XP SP 2

D:\test>copy %windir%\system32\calc.exe
        1 file(s) copied.
D:\test>ren calc.exe anything.calc.exe.zip
D:\test>anything.calc.exe.zip
D:\test>
-------------------------------------------------------------------
 This bring up the calc.exe on the screen too
-------------------------------------------------------------------
D:\test>ren anything.calc.exe.zip anything.old
D:\test>ren anything.old
-------------------------------------------------------------------
bring up again,

Bye.

--
Hern?n Marcelo Racciatti

Core Team Member ISECOM (Institute for Security and Open Methodologies)
Coordinator OISSG, Argentina (Open Information System Security Group)

[mailto:hracciatti@...il.com]
[http://www.hernanracciatti.com.ar]