Microsoft Windows OLE Arbitrary Code Execution Vulnerability [CVE-2019-0885]

CVE Number – CVE-2019-0885

A vulnerability in the Object Linking and Embedding (OLE) component of Microsoft Windows could allow an unauthenticated, remote attacker to execute arbitrary code on a targeted system.

The vulnerability exists because the affected software performs insufficient validation of user-supplied input. An attacker could exploit the vulnerability by persuading a user to access a link or file that submits malicious input to the affected software. A successful exploit could allow the attacker to execute arbitrary code with the privileges of the user. If the user has elevated privileges, the attacker could compromise the system completely.

Microsoft confirmed the vulnerability and released software updates.

Analysis

• To exploit this vulnerability, the attacker may use misleading language or instructions to persuade a user to access a link or file that submits malicious input to the affected software.
  
  Microsoft addressed this vulnerability by changing how the affected software validates user input.

Safeguards

• Administrators are advised to apply the appropriate updates.
  
  Administrators are advised to allow only trusted users to access local systems.
  
  Administrators are advised to allow only privileged users to access administration or management systems.
  
  Administrators may consider using the Microsoft Baseline Security Analyzer (MBSA) scan tool to identify common security misconfigurations and missing security updates on system endpoints.
  
  Administrators are advised to monitor critical systems.

Vendor Announcements

• Microsoft has released detailed information at the following link: Security Update Guide

Fixed Software

• Microsoft customers can obtain updates directly by using the links in the Microsoft Security Update Guide. These updates are also distributed by Windows automatic update features and are available from the Microsoft Update Catalog. Microsoft Windows Server Update Services (WSUS), Systems Management Server, and System Center Configuration Manager can assist administrators in deploying software updates.