Microsoft Windows Vista Kernel ALPC Local Privilege Escalation Vulnerability



Date Discovered

December 11, 2007


Microsoft Windows Vista is prone to a local privilege-escalation vulnerability. The vulnerability resides in the Windows Kernel. A locally logged-in user can exploit this issue to gain kernel-level access to the operating system.

Technologies Affected

  • HP Storage Management Appliance 2.1
  • HP Storage Management Appliance I
  • HP Storage Management Appliance II
  • HP Storage Management Appliance III
  • Microsoft Windows Vista
  • Microsoft Windows Vista Business 64-bit edition
  • Microsoft Windows Vista Business
  • Microsoft Windows Vista Enterprise 64-bit edition
  • Microsoft Windows Vista Enterprise
  • Microsoft Windows Vista Home Basic 64-bit edition
  • Microsoft Windows Vista Home Basic
  • Microsoft Windows Vista Home Premium 64-bit edition
  • Microsoft Windows Vista Home Premium
  • Microsoft Windows Vista Ultimate 64-bit edition
  • Microsoft Windows Vista Ultimate


Permit local access for trusted individuals only. Where possible, use restricted environments and restricted shells.
To reduce the likelihood of attacks, allow access to trusted individuals only and implement restricted environments and privileges.

Microsoft has released a security bulletin and updates to address this vulnerability.


Discovery is credited to Thomas Garnier of SkyRecon.

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