CVE-2020-1548 : Security Advisory and Response

Windows WaasMedic Service Information Disclosure Vulnerability was published on August 17, 2020. It affects various Microsoft Windows versions.

Understanding CVE-2020-1548

An information disclosure vulnerability in the Windows WaasMedic Service could allow an attacker to improperly disclose memory. Microsoft has provided a security update to address this issue.

What is CVE-2020-1548?

This CVE refers to an information disclosure vulnerability in the way the Windows WaasMedic Service manages memory.

The Impact of CVE-2020-1548

If exploited, an attacker could gain access to sensitive information by running a specially crafted application on the victim's system.

Technical Details of CVE-2020-1548

This section provides more technical insights into the vulnerability.

Vulnerability Description

The vulnerability lies in the improper handling of memory by the Windows WaasMedic Service.

Affected Systems and Versions

Windows 10 Version 2004
Windows Server version 2004
Windows 10 Version 1803
Windows 10 Version 1809
Windows Server 2019
Windows Server 2019 (Server Core installation)
Windows 10 Version 1909
Windows Server, version 1909 (Server Core installation)
Windows 10 Version 1903 for 32-bit, x64-based, and ARM64-based Systems
Windows Server, version 1903 (Server Core installation)

Exploitation Mechanism

To exploit the vulnerability, an attacker must first gain execution on the target system before running a specially crafted application.

Mitigation and Prevention

Here are the steps to mitigate and prevent potential exploits of this vulnerability:

Immediate Steps to Take

Apply the security update provided by Microsoft.
Monitor for any suspicious activities on the network.
Implement the principle of least privilege.
Educate users on phishing and social engineering awareness.

Long-Term Security Practices

Keep systems and software updated with the latest patches.
Conduct regular security assessments and penetration testing.
Deploy intrusion detection and prevention systems.

Patching and Updates

Ensure that all affected systems are updated with the security patch released by Microsoft to address CVE-2020-1548.