LANDesk Patch News Bulletin: LANDesk Security Threat ST000209 for Disabling Autorun on Microsoft Windows is Available 23-JAN-2009

Version 2

    LANDesk Security and Patch News   


      (January 23, 2009) In order to address security issues that can be mitigated or lessened by disabling the autorun functionality in Microsoft Windows, LANDesk has created ST000209. This new Security Threat will check a Windows computer to see if autorun is enabled. If detected remediation can disable the autorun functionality through ST000209.

      LANDesk used the guidance provided by US-CERT to modify the registry for disabling autorun. See the text below for further details.   



    Microsoft Windows Does Not Disable  AutoRun  Properly   


    Microsoft Windows includes an   AutoRun   feature, which can automatically run code when removable devices are connected to the computer. 

    Malicious software, such as W32.Downadup, is using   AutoRun   to spread. Disabling   AutoRun  , as specified in the CERT/CC Vulnerability Analysis blog, is an effective way of helping to prevent the spread of malicious code. 


    The   Autorun   and   NoDriveTypeAutorun   registry values are both ineffective for fully disabling   AutoRun   capabilities on Microsoft Windows systems. Setting the   Autorun   registry value to 0 will not prevent newly connected devices from automatically running code specified in the Autorun.inf file. It will, however, disable Media Change Notification (MCN) messages, which may prevent Windows from detecting when a CD or DVD is changed. According to Microsoft, setting the   NoDriveTypeAutorun   registry value to 0xFF "disables   Autoplay   on all types of drives." Even with this value set, Windows may execute arbitrary code when the user clicks the icon for the device in Windows Explorer. 



    New Vulnerabilities   

    ·         ST000209

    Changed Vulnerabilities

    ·         Vulnerability ID – N/A

    New Patch Downloads   

    ·         N/A

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