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AUSCERT External Security Bulletin Redistribution
Vulnerability in Hyper-V Could Allow Elevation of Privilege (2893986)
13 November 2013
AusCERT Security Bulletin Summary
Product: Microsoft Windows with Hyper-V
Operating System: Windows 8
Windows Server 2012
Impact/Access: Increased Privileges -- Existing Account
Denial of Service -- Existing Account
Execute Arbitrary Code/Commands -- Existing Account
CVE Names: CVE-2013-3898
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Microsoft Security Bulletin MS13-092 - Important Vulnerability in Hyper-V
Could Allow Elevation of Privilege (2893986)
Published: Tuesday, November 12, 2013
This security update resolves a privately reported vulnerability in Microsoft
Windows. The vulnerability could allow elevation of privilege if an attacker
passes a specially crafted function parameter in a hypercall from an existing
running virtual machine to the hypervisor. The vulnerability could also allow
denial of service for the Hyper-V host if the attacker passes a specially
crafted function parameter in a hypercall from an existing running virtual
machine to the hypervisor.
This security update is rated Important for Windows 8 for x64-based Systems
and Windows Server 2012.
Windows 8 for x64-based Systems (Pro and Enterprise editions only)
Windows Server 2012 (Standard and Datacenter editions, and Hyper-V Server
Windows Server 2012 (Server Core installation)
Address Corruption Vulnerability - CVE-2013-3898
An elevation of privilege vulnerability exists in Hyper-V on Windows 8 and
Windows Server 2012. An attacker who successfully exploited this vulnerability
could execute arbitrary code as System in another virtual machine (VM) on the
shared Hyper-V host. An attacker would not be able to execute code on the
Hyper-V host, only on guest VMs on the same host. The vulnerability could also
allow denial of service in Hyper-V on the same platforms, allowing an attacker
to cause the Hyper-V host to stop responding or restart.
To view this vulnerability as a standard entry in the Common Vulnerabilities
and Exposures list, see CVE-2013-3898.
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