TIBCO Security Advisory: January 15, 2008 - TIBCO Enterprise MessageService™

TIBCO Enterprise Message Service™vulnerability

Original release date: January 15, 2008
Last revised: –
Source: TIBCO Software Inc.

TIBCO would like to extendits appreciation to McSlibin and Sean Larsson (iDefense Labs) for discovery of these vulnerabilities, which have been addressed in the 4.4.2release.

TIBCO Enterprise Message Service vulnerability

Original release date: January 15, 2008
Last revised: –
Source: TIBCO Software Inc.

Systems Affected

TIBCO Enterprise Message Service (EMS) versions 4.0.0 through 4.4.1

The following components are affected:

• TIBCO EMS Server (tibemsd)

Overview

The TIBCO EMS server contains a buffer overflow vulnerability in
processing of inbound data via SmartSockets. The impact of this
vulnerability may include remote execution of arbitrary code,
information disclosure, and denial of service.

I. Description

TIBCO has released an update which addresses a critical vulnerability
in the server component of TIBCO EMS when used in conjunction with
TIBCO SmartSockets. This vulnerability affects the EMS server if an
attacker controls the SmartSockets Server, or is able to inject data
into the TCP stream between the SmartSockets and EMS servers. TIBCO
strongly recommends sites running the affected component to install
the update or take mitigating action as appropriate.

II. Impact

The impact of this vulnerability varies depending on the operating
system, configuration options of the server, and the privilege
levels of the user that invokes the server.

On Unix based systems, the successful exploit will allow arbitrary
code execution with the privileges of the user that invoked the
server.

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

III. Solution

SmartSockets support in the EMS server is disabled by default.
If SmartSockets support has been enabled, upgrade TIBCO EMS to
version 4.4.2 or above. This is strongly recommended.

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

• Disable SmartSockets support by setting “tibss_transports”
  to “disabled” in the configuration file for the EMS server
  (tibemsd.conf).
• Ensure that all SmartSockets servers specified in the
  “server_names” field of the transports configuration file
  (transports.conf) are fully trusted, and that injection of
  data into the rtserver/tibemsd connection is prevented.

References

http://www.tibco.com/mk/advisory.jsp

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TIBCO would like to extend its appreciation to McSlibin and Sean
Larsson (iDefense Labs) for discovery of these vulnerabilities, which
have been addressed in the 4.4.2 release.

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