Microsoft Internet Explorer ActiveX kill bit settings can be bypassed

ie-activex-killbit-bypass (24379) The risk level is classified as MediumMedium Risk


Microsoft Internet Explorer could allow a remote attacker to bypass the kill bit settings for ActiveX controls. Kill bits can be set in the system registry and are used to disable the initiation of a COM object in Internet Explorer. A remote attacker could create a malicious Web page containing specially crafted HTML which would cause the kill bit settings for ActiveX controls to be bypassed by Internet Explorer. This vulnerability could be exploited to use a disabled ActiveX control to execute arbitrary code on a victim's system, if the attacker could persuade the victim to visit the malicious Web page.


Bypass Security


Apply the appropriate patch for your system, as listed in the latest Microsoft Security Bulletin. See References.

— OR —

Use Microsoft Automatic Update if it is supported by your operating system. The original bulletin issued by Microsoft has been superseded.


Platforms Affected:

  • Microsoft Internet Explorer 5.01 SP4
  • Microsoft Internet Explorer 5.01 SP2
  • Microsoft Internet Explorer 5.01 SP3
  • Microsoft Internet Explorer 5.5
  • Microsoft Internet Explorer 6.0
  • Microsoft Internet Explorer 6.0 SP1


Jan 26, 2006

The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall the author/distributor (IBM Internet Security Systems X-Force) be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.

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