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Category:   Application (Security)  >   Trend Micro InterScan VirusWall Vendors:   Trend Micro
TrendMicro InterScan VirusWall Discloses Files to Remote Users
SecurityTracker Alert ID:  1009550
SecurityTracker URL:
CVE Reference:   GENERIC-MAP-NOMATCH   (Links to External Site)
Date:  Mar 24 2004
Impact:   Disclosure of system information, Disclosure of user information
Exploit Included:  Yes  
Version(s): 3.5
Description:   Tri Huynh from SentryUnion reported a vulnerability in TrendMicro's InterScan VirusWall. A remote user can view files located on the target system.

It is reported that the built in web proxy service does not properly validate user-supplied input. A remote user can supply a specially crafted URL containing '../' directory traversal characters to view arbitrary files on the target system with the privileges of InterScan VirusWall.

Some demonstration exploit URLs are provided:



The vendor has reportedly been notified without response.

Impact:   A remote user can view files on the target system.
Solution:   No solution was available at the time of this entry.
Vendor URL: (Links to External Site)
Cause:   Access control error, Input validation error
Underlying OS:  Linux (Any), UNIX (AIX), UNIX (HP/UX), UNIX (Solaris - SunOS), Windows (NT), Windows (2000), Windows (2003)
Underlying OS Comments:  Confirmed on Windows

Message History:   None.

 Source Message Contents

Subject:  TrendMacro Interscan Viruswall Directory Traversal

   TrendMacro Interscan Viruswall Directory Traversal

   PROGRAM: TrendMacro Interscan Viruswall
   VULNERABLE VERSIONS: - 3.5x (Windows)
                                                  - Unix/Solaris version is
not tested but possibly


  InterScan VirusWall provides intelligent content scanning
  to prevent virus outbreaks. It blocks spam, non-business
  related messages, and attachments to protect enterprise
  network and business integrity.


   Interscan Web Viruswall, a part of Interscan Viruswall package, is a web
   proxy/gateway service that has a responsibility to scan virus
  "on-the-fly" before it reach the user browser. In Interscan
   Web Viruswall, there is a builtin mechanism that
   allows anybody to read files at the /ishttp/localweb directory by using
   such an URL: http://victimIP:8080/ishttpd/localweb/filename. Other URLs
point to
  different directories (except sub-directories of "localweb")  won't
trigger the
   mechanism and will be forwarded to the proxy which the service
   is set up to. The reason there such a "feature" is because Interscan
   Web Viruswall  has another feature (not turned on by default) called
   TeleWindow which uses an applet (/ishttpd/localweb/java/
   to allow user to see the scanning process. Unfortunately, that built-in
   webserver has a directory traversal problem. By using such an URL like
   an evil genius ;-) can access to files outside the
   localweb directory:
   will download the service executable file or
   will download the autoexec.bat file in the root directory.

   Administrators should be aware that even the TeleWindow feature is not
   turned on, the vulnerability can sill be exploited since the
   mini-webserver is hardcoded and it can't be turned off by using the

  Apply the patch from TrendMacro or temporarily stop using the Interscan
  Web Viruswall until the patch is issued.

  Update: The technical support email was
  sent an email concern about this problem. However, it has been 6 days
  and we haven't received any reponses yet.


   Discovered by Tri Huynh from SentryUnion


   The information within this paper may change without notice. Use of
   this information constitutes acceptance for use in an AS IS condition.
   There are NO warranties with regard to this information. In no event
   shall the author be liable for any damages whatsoever arising out of
   or in connection with the use or spread of this information. Any use
   of this information is at the user's own risk.


   Please send suggestions, updates, and comments to:


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