[NEWS] RealNetworks Helix Server 9 Administration Server Buffer Overflow

From: SecuriTeam (support_at_securiteam.com)
Date: 03/25/04

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    Date: 25 Mar 2004 17:22:30 +0200

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      RealNetworks Helix Server 9 Administration Server Buffer Overflow


    Several of Real Networks Helix Server products utilize a common
    Administration Interface that is available over HTTP and protected by HTTP
    Basic Authentication.

    An authenticated attacker can submit malformed HTTP POST requests to the
    server's Administration interface, triggering a buffer overflow and
    executing arbitrary code on the server.

    On Windows platforms where the Helix Server is run as an NT Service, this
    allows arbitrary code execution under the context of the NT SYSTEM

    It should be noted that the Server does not have a default username and
    password - these are set during installation. In addition to this, the
    Server runs on a random TCP port, configured during installation.


    Vulnerable Systems:
     * Helix Universal Mobile Server & Gateway 10, version and
     * Helix Universal Server and Gateway 9, version and prior

    Immune Systems:
     * RealSystem Server and Proxy version 8.x and earlier are not vulnerable

    Vendor Status:
    Real Networks:
    05-01-2004 - Initial Pentest Limited Notification
    06-01-2004 - Notification acknowledged by Real Networks
    08-01-2004 - Draft Advisory sent to Pentest Limited By Real Networks
    12-01-2004 - Initial Advisory published by Real Networks stating the
    impact as 'Denial of Service'
    26-02-2004 - Real Advisory updated to describe impact as 'potential root
    18-03-2004 - Pentest Limited Advisory released.

    Updated versions of Helix Universal Server and Gateway 9 are available
    from RealNetworks.

    Updated Administration System plug-ins are available.

    Further details are available in the RealNetworks advisory, available at:


    The information has been provided by <mailto:alerts@pentest.co.uk>
    Pentest Security Alerts.


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