TIBCO Rendezvous vulnerability

   Original release date: April 9, 2008
   Last revised: --
   Source: TIBCO Software Inc.


Systems Affected

   TIBCO Rendezvous versions below 8.1.0
   TIBCO Rendezvous TX versions below 2.0.4
   TIBCO Rendezvous DataSecurity versions below 2.1.6
   TIBCO Runtime Agent (TRA) versions below 5.5.4
   TIBCO Hawk versions below 4.8.0
   TIBCO iProcess Engine versions 10.3.0 thru 10.6.1
   TIBCO TIBCO Substation ES versions below 2.4.0
   TIBCO Adapter for Files (z/OS only) versions below 4.4.1


   The following components are affected:

     * TIBCO Rendezvous Daemon (rvd)
     * TIBCO Rendezvous Routing Daemon (rvrd)
     * TIBCO Rendezvous Secure Routing Daemon (rvsrd)
     * TIBCO Rendezvous Secure Daemon (rvsd)
     * TIBCO Rendezvous Cache (rvcache)
     * TIBCO Rendezvous Agent (rva)
     * TIBCO Rendezvous Relay Agent (rvrad)
     * TIBCO Rendezvous Performance Test Tool (rvperfm, rvperfs)
     * TIBCO Rendezvous client library (libtibrv)
     * TIBCO Rendezvous Server In-Process Module Add-on (libtibrvipm)
     * TIBCO Rendezvous Access Control List Daemon (rvacld)
     * TIBCO Rendezvous TX daemon (rvtxd)
     * TIBCO iProcess Engine Process Sentinal (procmgr, pmsulib)
     * TIBCO Substation ES RV Transformer (tibssxfr)
     * TIBCO File Adapter (z/OS) Publisher (sxf3rpub)
     * TIBCO File Adapter (z/OS) Subscriber (sxf3rsub)

Overview

   TIBCO Rendezvous and derived components listed above contain buffer
   overflow vulnerabilities in the processing of inbound data.  The
   impact of these vulnerabilities may include remote execution of
   arbitrary code, information disclosure, and denial of service. 


I. Description

   TIBCO has released updates that address critical vulnerabilities in
   server and library components of TIBCO Rendezvous.

   TIBCO Rendezvous and derived components contain a vulnerability that
   may allow an attacker to compromise the server or application by
   sending a specially crafted message.

   TIBCO strongly recommends sites running the affected components to
   install the update or take mitigating action as appropriate.


II. Impact

   The impact of these vulnerabilities varies depending on the operating
   system and the privilege levels of the user that invokes the server or
   application.

   On Unix based systems, a successful exploit against the Rendezvous
   communication daemons (rvd, rvrd, rvsd, rvsrd) will allow arbitrary
   code execution with the privileges of the user that invoked that
   daemon, with the exception of user id 0 ("root").  If the daemon
   component was invoked by user id 0, a successful exploit will
   result in access to privileges of user id 65534 ("nobody").

   On Unix based systems, a successful exploit against all other
   components will allow arbitrary code execution with the privileges
   of the user that invoked the server or application.

   On Windows based systems, a successful exploit will allow arbitrary
   code execution with the privileges of the user that invoked the server
   or application.  If the server or application is installed as a system
   service, this will result in access to system privileges.


III. Solution

   Upgrade TIBCO Rendezvous to version 8.1.0 or above.  Update all
   components derived from TIBCO Rendezvous to use version 8.1.0 or
   above.  This is strongly recommended.

   If an upgrade is not possible, the following actions can mitigate
   the vulnerabilities:

     * Utilize a firewall to restrict UDP/PGM access to the Rendezvous
       network to trusted sources.
     * Utilize a firewall to restrict access to the Rendezvous server
       port to trusted sources.
     * Use a user with restricted privileges to invoke the server
       or application.
     * On Unix systems, invoke the server or application from a chroot
       environment.  This will restrict the ability to access or
       modify information in the event of a successful exploit.


References

   http://www.tibco.com/mk/advisory.jsp
   CVE: CVE-2008-1703