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  • TIBCO Security Advisory: April 28, 2009 - TIBCO Enterprise MessageService™


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    TIBCO Enterprise Message Service™ vulnerability

    Original release date: April 28, 2009
    Lastrevised: --
    CVE-2009-1291
    Source: TIBCO SoftwareInc.

    TIBCO would like to extend its appreciation to iDefense contributor Stephen Fewer of Harmony Security for discovery of this vulnerability, which has been addressed in the 5.1.2release.



    TIBCO Enterprise Message Service vulnerability

    Original release date: April 28, 2009
    Last revised: --
    Source: TIBCO Software Inc.


    Systems Affected

    TIBCO Enterprise Message Service (EMS) versions 4.0.0 through 5.1.1

    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 5.1.2 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/services/support/advisories/default.jsp
    CVE: CVE-2009-1291

    ---------------------------------------------------------------------

    TIBCO would like to extend its appreciation to iDefense contributor
    Stephen Fewer of Harmony Security for discovery of this vulnerability,
    which has been addressed in the 5.1.2 release.

    ---------------------------------------------------------------------

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