CVE-2019-3644 : Exploit Details and Defense Strategies

McAfee Web Gateway (MWG) versions prior to 7.8.2.13 are vulnerable to CVE-2019-9517, potentially leading to a denial of service attack.

Understanding CVE-2019-3644

This CVE affects McAfee Web Gateway (MWG) versions before 7.8.2.13, allowing external attackers to exploit a vulnerability that impacts scanning proxies.

What is CVE-2019-3644?

CVE-2019-3644 is a vulnerability in McAfee Web Gateway (MWG) versions earlier than 7.8.2.13 that can be exploited by remote attackers, resulting in a denial of service.

The Impact of CVE-2019-3644

CVSS Base Score: 7.5 (High)
Attack Vector: Network
Attack Complexity: Low
Availability Impact: High
This vulnerability does not require user interaction or privileges, affecting the availability of the system.

Technical Details of CVE-2019-3644

McAfee Web Gateway (MWG) versions prior to 7.8.2.13 have the following technical details:

Vulnerability Description

The vulnerability in CVE-2019-3644 allows external attackers to exploit scanning proxies, potentially leading to a denial of service.

Affected Systems and Versions

Affected Product: McAfee Web Gateway (MWG)
Vendor: McAfee, LLC
Vulnerable Versions: < 7.8.2.13

Exploitation Mechanism

The vulnerability can be exploited remotely by external attackers, impacting the scanning proxies of McAfee Web Gateway (MWG).

Mitigation and Prevention

To address CVE-2019-3644, consider the following steps:

Immediate Steps to Take

Update McAfee Web Gateway (MWG) to version 7.8.2.13 or higher.
Monitor network traffic for any suspicious activity.

Long-Term Security Practices

Regularly update and patch all software and systems.
Implement network segmentation to limit the impact of potential attacks.

Patching and Updates

Apply patches and updates provided by McAfee to mitigate the vulnerability.