CVE-2022-28964 : Exploit Details and Defense Strategies

An arbitrary file write vulnerability in Avast Premium Security before v21.11.2500 (build 21.11.6809.528) allows attackers to cause a Denial of Service (DoS) via a crafted DLL file.

Understanding CVE-2022-28964

This CVE identifies an arbitrary file write vulnerability in Avast Premium Security that could lead to a Denial of Service (DoS) attack.

What is CVE-2022-28964?

CVE-2022-28964 is an arbitrary file write vulnerability found in Avast Premium Security software versions prior to v21.11.2500 (build 21.11.6809.528). Attackers can exploit this vulnerability by using a specially crafted DLL file to trigger a Denial of Service (DoS) condition.

The Impact of CVE-2022-28964

Exploitation of this vulnerability can result in a Denial of Service (DoS) attack, disrupting the normal functionality of the affected Avast Premium Security software.

Technical Details of CVE-2022-28964

This section outlines the specific technical details of the CVE.

Vulnerability Description

The vulnerability allows attackers to write arbitrary files, specifically DLL files, within Avast Premium Security, leading to a Denial of Service (DoS) condition.

Affected Systems and Versions

Avast Premium Security software versions before v21.11.2500 (build 21.11.6809.528) are impacted by this vulnerability.

Exploitation Mechanism

Attackers can exploit this vulnerability by using a maliciously crafted DLL file to trigger the arbitrary file write, causing a Denial of Service (DoS) condition.

Mitigation and Prevention

To address and prevent the exploitation of CVE-2022-28964, follow these guidelines.

Immediate Steps to Take

Update Avast Premium Security to version v21.11.2500 (build 21.11.6809.528) or later.
Monitor for any abnormal system behavior that may indicate a potential DoS attack.

Long-Term Security Practices

Regularly update software and security patches to mitigate known vulnerabilities.
Implement network segmentation and limitations on file write permissions to prevent unauthorized access.

Patching and Updates

Avast has released version v21.11.2500 (build 21.11.6809.528) to address this vulnerability. Ensure all systems running Avast Premium Security are updated to the latest version to prevent exploitation of CVE-2022-28964.