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CVE-2019-0561 Explained : Impact and Mitigation

Learn about CVE-2019-0561, an information disclosure vulnerability in Microsoft Word affecting various Microsoft software. Find out the impacted systems, exploitation risks, and mitigation steps.

A security flaw known as the 'Microsoft Word Information Disclosure Vulnerability' affects various Microsoft software, including Microsoft Word, Office 365 ProPlus, and Microsoft Office.

Understanding CVE-2019-0561

This CVE involves an information disclosure vulnerability related to the improper usage of Microsoft Word macro buttons.

What is CVE-2019-0561?

        The vulnerability arises from the incorrect handling of Microsoft Word macro buttons.
        It impacts Microsoft Word, Office 365 ProPlus, and Microsoft Office.

The Impact of CVE-2019-0561

        Attackers could exploit this vulnerability to disclose sensitive information.
        Affected systems may suffer from data breaches and unauthorized access.

Technical Details of CVE-2019-0561

This section provides technical insights into the vulnerability.

Vulnerability Description

        The vulnerability allows for information disclosure through Microsoft Word macro buttons.

Affected Systems and Versions

        Microsoft Word 2010 Service Pack 2 (32-bit and 64-bit editions)
        Microsoft Word 2013 RT Service Pack 1
        Microsoft Word 2013 Service Pack 1 (32-bit and 64-bit editions)
        Microsoft Word 2016 (32-bit and 64-bit editions)
        Word Automation Services on Microsoft SharePoint Server 2010 Service Pack 2
        Microsoft Office 2010 Service Pack 2 (32-bit and 64-bit editions)
        Microsoft Office 2016 for Mac
        Microsoft Office 2019 for 32-bit and 64-bit editions
        Microsoft Office 2019 for Mac
        Web Apps Server 2010 Service Pack 2
        Office 365 ProPlus for 32-bit and 64-bit Systems

Exploitation Mechanism

        Attackers can exploit this vulnerability by tricking users into opening malicious Word documents containing specially crafted macro buttons.

Mitigation and Prevention

Protect your systems from CVE-2019-0561 with these steps:

Immediate Steps to Take

        Disable macros in Microsoft Word unless they are necessary.
        Exercise caution when opening Word documents from untrusted sources.
        Keep software and security solutions up to date.

Long-Term Security Practices

        Educate users on safe computing practices and the risks associated with enabling macros.
        Implement email filtering to block suspicious attachments.

Patching and Updates

        Apply security patches and updates provided by Microsoft to address this vulnerability.

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