CVE-2020-1335 : What You Need to Know

A Microsoft Excel Remote Code Execution Vulnerability was disclosed on September 8, 2020. The vulnerability affects various Microsoft products like Excel, SharePoint Server, Office, and more.

Understanding CVE-2020-1335

This CVE involves a critical remote code execution vulnerability in Microsoft Excel.

What is CVE-2020-1335?

A remote code execution flaw in Microsoft Excel could allow attackers to execute arbitrary code on the target system.

The Impact of CVE-2020-1335

Exploitation of this vulnerability could lead to unauthorized access, data manipulation, and potentially complete control of the affected system.

Technical Details of CVE-2020-1335

This section delves into the specifics of the vulnerability.

Vulnerability Description

The vulnerability arises due to the mishandling of objects in memory by Microsoft Excel.
Successful exploitation allows an attacker to execute arbitrary code in the context of the current user.
Attackers could take over the system and perform various malicious activities.

Affected Systems and Versions

Microsoft products like Excel 2010, 2013, 2016, Office 2010, 2013, 2016, Office Online Server, SharePoint Server, and more are impacted.
Various versions of these products are affected; the details are outlined in the data.

Exploitation Mechanism

Users need to open a specially crafted file with the affected Microsoft Excel version to trigger the vulnerability.
Attack scenarios include email attacks or web-based attacks with maliciously crafted files.

Mitigation and Prevention

Here's how to address and mitigate the CVE-2020-1335 vulnerability.

Immediate Steps to Take

Apply the security update provided by Microsoft to fix the vulnerability.
Educate users about the risks associated with opening unknown or suspicious files.

Long-Term Security Practices

Regularly update systems and software to prevent vulnerabilities.
Implement email and web security best practices to reduce the risk of successful attacks.

Patching and Updates

Microsoft has released a security update to address the vulnerability in Excel and affected products.