Oracle VirtualBox VBoxSF.sys IOCTL_MRX_VBOX_DELCONN Privilege Escalation Exploit

The VBoxSF.sys driver is a component of VirtualBox Guest Additions, which is in charge of providing the 'Shared Folders' feature offered by Oracle VirtualBox. This driver doesn't properly validate a pointer when handling the IOCTL_MRX_VBOX_DELCONN IoControl. This allows an unprivileged user in a Windows Guest OS with VirtualBox Guest Additions installed to gain SYSTEM privileges within the Guest OS.
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Friday, April 4, 2014 - 00:00