Security Vulnerability with Microsoft Index Server 2.0(Sample fil e reveals file info, physical path etc)

[Syed Mohamed A <SyedMA () innerframe com>]

Hi
I noticed index server sample file is vulnerable which reveals file info and
physical path.

Vulnerable

Microsoft Index Server 2.0 
+ IIS 4.0 + Windows NT Server 4.0
 + Service Pack 6a 

Details

The Index Server Sample file SQLQHit.asp  shipped with Microsoft  Index
Server 2.0 and Option pack 4.0 , is installed under the directory
"/inetpub/iissamples/ISSamples/" by default. SQLQHit.asp file  is used for
SQL based Search, can be used by a malicious user to gather information
about  files in virtual folders under certain conditions.

By sending certain type of query to SQLQHit.asp page, malicious user can
exploit this vulnerability. This vulnerability reveals the physical path,
file attribute and some lines source code of files in virtual directory.
Malicious user can't modify or write through this vulnerability.  But he/she
can gather more information about the files in virtual directory. By default
/inetpub/iissamples/ISSamples/ folder is installed while installing Index
server & IIS. The vulnerability can be exploited only if index server runs. 

This vulnerability can be exploited both remotely as well as locally. 

Exploit

http://local-iis-server/iissamples/ISSamples/SQLQHit.asp?CiColumns=*&CiScope
=webinfo

reveals the corresponding physical path of the files in virtual folder. It
also reveals file attribute, some lines  code of  the file. If sensitive
information like passwords kept inside asp,asa file, it may revealed through
characterization field. 

The vulnerability can be exploited through the following queries also
http://local-iis-server/iissamples/ISSamples/SQLQHit.asp?CiColumns=*&CiScope
=extended_fileinfo

http://local-iis-server/iissamples/ISSamples/SQLQHit.asp?CiColumns=*&CiScope
=extended_webinfo

http://local-iis-server/iissamples/ISSamples/SQLQHit.asp?CiColumns=*&CiScope
=fileinfo

Note: This vulnerability can be exploited only when /iissamples/ISSamples
folder exists and Index server running. ( By default /iisamples/ISSamples/
folder installed and index server runs)

Impact of the vulnerability

Vulnerability reveals the physical path of the file in virtual folders.
Malicious user can gather information about the files like created date ,
file attribute and even some lines code of the file. 

Solution

Never install sample files on production servers. If you have sample folders
like iissamples/issamples/ , remove sample files. Microsoft promises next
version of Index service won't have this vulnerablity. 

Disclaimer

The information contained herein are provided solely and expressly for
educational purposes.The author shall not be held responsible for any
pasive, malicious, or illiegal actions  taken with the use of the
information.


With Warm Regards,
Syed Mohamed A

Technical Specialist - Technology & Practices
InnerFrame - The technology infrastructure services provider
Division of The Microland Group, India
www.innerframe.com

 
The information transmitted is intended only for the person or entity to
which it is addressed and may contain confidential and/or privileged
material. Any review, re-transmission, dissemination or other use of or
taking of any action in reliance upon, this information by persons or
entities other than the intended recipient is prohibited. If you received
this in error, please contact the sender and delete the material from your
computer.