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Microsoft Windows 'Win32k.sys' Graphics CVE-2018-8332 Remote Code Execution Vulnerability

2018-09-11T00:00:00
ID SMNTC-105248
Type symantec
Reporter Symantec Security Response
Modified 2018-09-11T00:00:00

Description

Description

Microsoft Windows kernel is prone to a remote code-execution vulnerability. Attackers can exploit this issue to execute arbitrary code in the context of the affected application. Failed exploit attempts will likely cause a denial-of-service condition.

Technologies Affected

  • Microsoft Office 2016 Click-to-Run (C2R) for 32-bit edition
  • Microsoft Office 2016 Click-to-Run (C2R) for 64-bit edition
  • Microsoft Office 2016 for Mac
  • Microsoft Windows 10 Version 1607 for 32-bit Systems
  • Microsoft Windows 10 Version 1607 for x64-based Systems
  • Microsoft Windows 10 Version 1803 for 32-bit Systems
  • Microsoft Windows 10 Version 1803 for x64-based Systems
  • Microsoft Windows 10 for 32-bit Systems
  • Microsoft Windows 10 for x64-based Systems
  • Microsoft Windows 10 version 1703 for 32-bit Systems
  • Microsoft Windows 10 version 1703 for x64-based Systems
  • Microsoft Windows 10 version 1709 for 32-bit Systems
  • Microsoft Windows 10 version 1709 for x64-based Systems
  • Microsoft Windows 7 for 32-bit Systems SP1
  • Microsoft Windows 7 for x64-based Systems SP1
  • Microsoft Windows 8.1 for 32-bit Systems
  • Microsoft Windows 8.1 for 64-bit Systems
  • Microsoft Windows Server 1709
  • Microsoft Windows Server 1803
  • Microsoft Windows Server 2008 R2 for Itanium-based Systems SP1
  • Microsoft Windows Server 2008 R2 for x64-based Systems SP1
  • Microsoft Windows Server 2008 for 32-bit Systems SP2
  • Microsoft Windows Server 2008 for Itanium-based Systems SP2
  • Microsoft Windows Server 2008 for x64-based Systems SP2
  • Microsoft Windows Server 2012
  • Microsoft Windows Server 2012 R2
  • Microsoft Windows Server 2016

Recommendations

Run all software as a nonprivileged user with minimal access rights.
To reduce the impact of latent vulnerabilities, always run nonadministrative software as an unprivileged user with minimal access rights.

Deploy network intrusion detection systems to monitor network traffic for malicious activity.
Deploy NIDS to monitor network traffic for signs of suspicious or anomalous activity. This may help detect malicious actions that an attacker may take after successfully exploiting vulnerabilities in applications. Review all applicable logs regularly.

Do not accept or execute files from untrusted or unknown sources.
To reduce the likelihood of successful exploits, never handle files that originate from unfamiliar or untrusted sources.

Do not follow links provided by unknown or untrusted sources.
Web users should be cautious about following links to sites that are provided by unfamiliar or suspicious sources. Filtering HTML from emails may help remove a possible vector for transmitting malicious links to users.

Implement multiple redundant layers of security.
Since this issue may be leveraged to execute code, we recommend memory-protection schemes, such as nonexecutable stack/heap configurations and randomly mapped memory segments. This tactic may complicate exploits of memory-corruption vulnerabilities.

Updates are available. Please see the references or vendor advisory for more information.

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