[NT] Buffer Overflow in SentinelLM Service

From: SecuriTeam (support_at_securiteam.com)
Date: 03/08/05

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    Date: 8 Mar 2005 11:26:43 +0200

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      Buffer Overflow in SentinelLM Service


     <http://www.safenet-inc.com/products/sentinel/lm.asp> Sentinel LM is a
    software-based license management application allowing application
    developers to implement multiple pre-built license models with a single
    software development integration effort.
    A buffer overflow in SentinelLM allows a malicious attacker to run
    arbitrary machine code on a vulnerable host.


    Vulnerable Systems:
     * Sentinel License Manager version

    CVE Information:

    When sending a large amount of data to the SentinelLM service, it will
    result in a buffer overflow where the Extended Instruction Pointer (eip)
    is overwritten, allowing arbitrary code being run on the server, with the
    rights of the service. The Sentinel License Manager is vulnerable to a
    buffer overflow when sending 3000 bytes of data or more to the UDP port
    5093 where the "Lservnt" service are running resulting in the EIP being
    overwritten allowing arbitrary code execution, with the rights of the
    service, as default are "SYSTEM".

    Update to version 8.0 of the Sentinel License Manager at:
    Disclosure Timeline:
    *12-2004 Vulnerability discovered
    * 21-12-2004 Research completed
    * 29-12-2004 Vendor contacted
    * 30-12-2004 Vendor responds that the vulnerability are fixed in version
    * 19-02-2005 Report sent to CERT
    * 22-02-2005 Received response from CERT: VU#108790 and CAN-2005-0353
    * 07-03-2005 Public disclosure


    The information has been provided by <mailto:advisory@cirt.dk> CIRT
    The original article can be found at:


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