Microsoft Windows Kernel contains a vulnerability that could allow an unauthenticated, remote attacker to access sensitive information on a targeted system. Updates are available.
A vulnerability in Microsoft Windows could allow an unauthenticated, remote attacker to access sensitive information.
The vulnerability is due to improper memory operations performed by the affected software. An attacker could exploit the vulnerability by convincing a user to open a malicious file. A successful exploit could allow the attacker to access kernel memory addresses. This ability could allow the attacker to access sensitive information. The attacker could use the information gained to launch additional attacks.
Microsoft has confirmed the vulnerability in a security bulletin and released software updates.
The following Microsoft products are affected:
Windows XP SP3
Windows Server 2003 SP2
Windows Vista SP2
Windows Server 2008 for 32-bit Systems SP2
Windows 7 for 32-bit Systems SP1
Windows 8 for 32-bit Systems
To exploit the vulnerability, the attacker may provide a link that directs a user to a malicious site or persuade a user to open a malicious file intended to submit malicious input to the affected software.
Microsoft has resolved the vulnerability by by modifying how Windows handles certain page fault system calls.
Microsoft has released a security bulletin at the following link: MS13-048
An unauthenticated, remote attacker could exploit the vulnerability to access kernel memory addresses. This ability could allow the attacker to access sensitive information. The attacker could use the information gained to launch additional attacks.
The vulnerability is due to improper memory operations performed by the affected software related to page fault system calls.
An unauthenticated, remote attacker could exploit the vulnerability by providing a crafted file to a user and using misleading language or instructions in an attempt to persuade the user to open the file. When the malicious file is processed by the affected software, a memory error could occur that the attacker could use to access kernel memory addresses. This ability could allow the attacker to access sensitive information. The attacker could may also use the information gained to launch additional attacks.
Administrators are advised to apply the appropriate updates.
Administrators are advised to allow only trusted users to have network access.
Administrators may consider using the Microsoft Baseline Security Analyzer (MBSA) scan tool to identify common security misconfigurations and missing security updates on system endpoints.
Users are advised not to open e-mail messages from suspicious or unrecognized sources. If users cannot verify that links or attachments included in e-mail messages are safe, they are advised not to open them.
Users are advised not to visit websites or follow links that have suspicious characteristics or cannot be verified as safe.
Administrators are advised to use an unprivileged account when browsing the Internet.
Administrators are advised to monitor critical systems.
Microsoft customers can obtain updates directly by using the links in the security bulletin. These updates are also distributed by Windows automatic update features and available on the Microsoft Update service. Microsoft Windows Server Update Services (WSUS), Systems Management Server, and System Center Configuration Manager can assist administrators in deploying software updates.
The security vulnerability applies to the following combinations of products.
for 32-bit systemsSP1 | Datacenter EditionSP2 | Datacenter Edition, 64-bit (Itanium)SP2 | Datacenter Edition x64 (AMD/EM64T)SP2 | Enterprise EditionSP2 | Enterprise Edition, 64-bit (Itanium)SP2 | Enterprise Edition x64 (AMD/EM64T)SP2 | Standard EditionSP2 | Standard Edition, 64-bit (Itanium)SP2 | Standard Edition x64 (AMD/EM64T)SP2 | Web EditionSP2 | Datacenter EditionSP2 | Datacenter Edition, 64-bitSP2 | Itanium-Based Systems EditionSP2 | Enterprise EditionSP2 | Enterprise Edition, 64-bitSP2 | Essential Business Server StandardSP2 | Essential Business Server PremiumSP2 | Essential Business Server Premium, 64-bitSP2 | Standard EditionSP2 | Standard Edition, 64-bitSP2 | Web ServerSP2 | Web Server, 64-bitSP2 | Home BasicSP2 | Home PremiumSP2 | BusinessSP2 | EnterpriseSP2 | UltimateSP2 | Home Basic x64 EditionSP2 | Home Premium x64 EditionSP2 | Business x64 EditionSP2 | Enterprise x64 EditionSP2 | Ultimate x64 EditionSP2 | Home EditionSP3 | Professional EditionSP3 | Tablet PC EditionSP3 | Media Center EditionSP3 | for 32-bit systemsBase
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