**** Please Release ****





Vulnerability Report For Voyant Technologies Sonata

Conferencing product.



         Larry W. Cashdollar

                     Vapid Labs





Date Published: 11/07/2000



Advisory ID: 10132000-01



CVE CAN: None currently assigned.



Title: Multiple Vulnerabilities found in Sonata teleconferencing

Application.



Class:  Design Error



Remotely Exploitable:  Yes



Locally Exploitable:  Yes



Vulnerability Description:



  Sonata is a teleconfrencing solution developed by Voyant Technologies.

This advisory concerns the Sonata application server and bridge componet

of the Sonata package.  The application server is an Ultra Sparc 5 running

Solaris 2.x as required by Voyant technologies. The bridge is an IBM PC

running OS/2 Warp.  These hosts are usually built in house by Voyant

personnel and installed at customer locations by a field engineer.



  Six vulnerabilities have been found in the application server host and

Sonata package, they are categorized below:



1) Reused default user accounts and passwords.



2) Easily guessable passwords.



3) Poor file permissions.



4) Lack of host hardening.



5) X console authentication has been disabled.



        6) Hard coded default passwords.





Vulnerable Packages/Systems: Sonata v3.x on Solaris 2.x.

                             Sonata bridge OS/2 Warp.





Solution/Vendor Information/Workaround:



  Please contact Voyant technologies for assistance.

  See references section for Vendor contact information.





Vendor notified on: 10/13/2000





Credits:



This advisory was drafted with the help of the SecurityFocus.com

Vulnerability Help Team. For more information or assistance drafting

advisories please mail vulnhelp@securityfocus.com.



Voyant Technologies for responding, but I wish they would have carried

this further..





Technical Description - Exploit/Concept Code:



I. Application Server, Solaris 2.x



  By using available default services on the host an attacker can

enumerate accounts. Using this easily obtainable account information

combined with poor password selection and weak file permissions a remote

attacker can gain root access.  The passwords guessed are the default for

_all_ installations of Sonata.



  By default xhost authentication is disabled allowing a remote attacker

to log key strokes and capture screen shots of the X console.



II. Bridging Server, OS/2 Warp.



  These default passwords are also re-used on the bridging host

(OS/2).  Which has telnet enabled for remote administration.





  I am not going to detail the exploit because the methods used to access

these systems are only the most basic information gathering techniques one

would use to audit a host.





Fix:

  Please contact Voyant Tech support for assistance with your specific

installation.





References:



  Sonata product page.

http://www.voyanttech.com/displaypage.cfm?pid=27&toppid=22



Security Focus website.

http://www.securityfocus.com



        Vapid Labs.

http://vapid.betteros.org

Email: Larry W. Cashdollar 





DISCLAIMER:



The contents of this advisory are copyright (c) 2000 Larry W. Cashdollar and

may be distributed freely provided that no fee is charged for this

distribution and proper credit is given.





Ver 3.3 11/07/2000