Microsoft Excel CVE-2019-1263 Information Disclosure Vulnerability

Description

Microsoft Excel is prone to an information-disclosure vulnerability. Attackers can exploit this issue to obtain sensitive information that may aid in further attacks.

Technologies Affected

• Microsoft Excel 2010 Service Pack 2 (32-bit editions)
• Microsoft Excel 2010 Service Pack 2 (64-bit editions)
• Microsoft Excel 2013 RT Service Pack 1
• Microsoft Excel 2013 Service Pack 1 (32-bit editions)
• Microsoft Excel 2013 Service Pack 1 (64-bit editions)
• Microsoft Excel 2016 (32-bit editions)
• Microsoft Excel 2016 (64-bit editions)
• Microsoft Office 2019 for 32-bit editions
• Microsoft Office 2019 for 64-bit editions
• Microsoft Office 2019 for Mac
• Microsoft Office 365 ProPlus for 32-bit Systems
• Microsoft Office 365 ProPlus for 64-bit Systems

Recommendations

Run all software as a nonprivileged user with minimal access rights.
When possible, run all software as a user with minimal privileges and limited access to system resources. Use additional precautions such as restrictive environments to insulate software that may potentially handle malicious content.

Deploy network intrusion detection systems to monitor network traffic for malicious activity.
Deploy NIDS to monitor network traffic for signs of anomalous or suspicious activity. This may indicate exploit attempts or activity that results from successful exploits.

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