CVE-2019-18654 : Exploit Details and Defense Strategies

AVG AntiVirus (Internet Security Edition) 19.3.3084 build 19.3.4241.440 is vulnerable to Cross Site Scripting (XSS) through the Network Notification Popup feature.

Understanding CVE-2019-18654

This CVE involves a security vulnerability in AVG AntiVirus that allows attackers to inject and execute malicious JavaScript code.

What is CVE-2019-18654?

The vulnerability is a Cross Site Scripting (XSS) issue in AVG AntiVirus (Internet Security Edition) 19.3.3084 build 19.3.4241.440.
Attackers can exploit this flaw via the Network Notification Popup feature by using a specific SSID Name.

The Impact of CVE-2019-18654

Attackers can inject and run malicious JavaScript code, potentially leading to unauthorized access or data theft.

Technical Details of CVE-2019-18654

This section provides more in-depth technical information about the vulnerability.

Vulnerability Description

AVG AntiVirus (Internet Security Edition) 19.3.3084 build 19.3.4241.440 is susceptible to XSS attacks through the Network Notification Popup.

Affected Systems and Versions

Product: AVG AntiVirus (Internet Security Edition)
Version: 19.3.3084 build 19.3.4241.440

Exploitation Mechanism

Attackers exploit the vulnerability by manipulating the SSID Name in the Network Notification Popup feature to execute malicious JavaScript code.

Mitigation and Prevention

Protecting systems from CVE-2019-18654 requires immediate actions and long-term security practices.

Immediate Steps to Take

Disable the Network Notification Popup feature in AVG AntiVirus to prevent exploitation.
Regularly update the antivirus software to patch known vulnerabilities.

Long-Term Security Practices

Educate users on safe browsing habits to avoid falling victim to XSS attacks.
Implement network security measures to detect and block malicious scripts.

Patching and Updates

Stay informed about security updates from AVG and apply patches promptly to mitigate the risk of XSS attacks.