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Re: another filename bypass vulnerability - from cmd.exe


From: 6ackpace <6ackpace () gmail com>
Date: Wed, 16 Nov 2005 18:04:02 +0530

It also work for windowsXp 2 and with other ext .
 i.e exe.txt.exe.pdf ......

 On 11/16/05, Aditya Deshmukh <aditya.deshmukh () online gateway strangled net>
wrote:

Was doing some testing [xfocus-AD-051115]

Ie Multiple antivirus failed to scan
malicous filename bypass vulnerability

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.

I copy and paste from cmd.exe
-------------------------------------------------------------------

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.






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