CVE-2020-1483 : Security Advisory and Response
Learn about CVE-2020-1483, a critical remote code execution flaw in Microsoft Outlook, impacting various versions of Microsoft Office. Find mitigation steps and the importance of immediate patching.
Microsoft Outlook Memory Corruption Vulnerability was published on August 17, 2020, and affects various Microsoft Office versions.
Understanding CVE-2020-1483
This CVE identifies a remote code execution vulnerability in Microsoft Outlook, potentially allowing an attacker to exploit memory handling issues.
What is CVE-2020-1483?
- Exploitable flaw in Microsoft Outlook's memory handling
- Allows attackers to execute arbitrary code in the context of the current user
- Attackers can gain control of affected systems
The Impact of CVE-2020-1483
- Users running Outlook with administrative rights are at high risk
- Attackers can install programs, manipulate data, or create new accounts
- Severity rated as Critical when used with Preview Pane
Technical Details of CVE-2020-1483
This section delves into the vulnerability specifics, affected systems, and the exploitation mechanism.
Vulnerability Description
- Exploitable memory handling flaw in Microsoft Outlook
- Allows remote code execution with escalated privileges
Affected Systems and Versions
- Microsoft Office 2019 version 19.0.0
- Microsoft 365 Apps for Enterprise version 16.0.1
- Microsoft Outlook 2016 version 16.0.0.0
- Microsoft Outlook 2013 Service Pack 1 version 15.0.0.0
- Microsoft Outlook 2010 Service Pack 2 version 13.0.0.0
- Platforms: 32-bit Systems, x64-based Systems, ARM64-based Systems
Exploitation Mechanism
- Requires a user to open a specially crafted file in Outlook
- Attackers can exploit via email by convincing users to open the file
- Web-based attacks involve hosting a website with malicious files
Mitigation and Prevention
Guidance on immediate actions, long-term security measures, and the importance of patching.
Immediate Steps to Take
- Avoid opening suspicious files or clicking on unknown links
- Configure user accounts with the least privileges necessary
Long-Term Security Practices
- Educate users on phishing tactics and safe browsing habits
- Regularly update security software and conduct vulnerability assessments
Patching and Updates
- Microsoft has released a security update addressing the memory corruption vulnerability
- Ensure all affected versions of Microsoft Outlook are updated promptly for protection