CVE-2019-3654 : Exploit Details and Defense Strategies
Learn about CVE-2019-3654, an Authentication Bypass vulnerability in McAfee Client Proxy (MCP) versions prior to 3.0.0. Understand the impact, affected systems, and mitigation steps.
A security flaw known as an Authentication Bypass vulnerability has been identified in the Microsoft Windows client within McAfee Client Proxy (MCP) versions earlier than 3.0.0. This vulnerability permits a local user to bypass the scanning of web traffic, resulting in temporary access to blocked websites.
Understanding CVE-2019-3654
This CVE involves an Authentication Bypass vulnerability in McAfee Client Proxy (MCP) versions less than 3.0.0.
What is CVE-2019-3654?
The CVE-2019-3654 vulnerability allows a local user to generate an authorization key on the client, typically reserved for network administrators, enabling access to blocked websites.
The Impact of CVE-2019-3654
The impact of this vulnerability is rated as MEDIUM with a CVSS base score of 5.3. The attack complexity is HIGH, requiring low privileges but user interaction is necessary. The availability impact is HIGH.
Technical Details of CVE-2019-3654
This section provides more technical insights into the CVE.
Vulnerability Description
The vulnerability in McAfee Client Proxy (MCP) allows local users to bypass web traffic scanning by generating an unauthorized authorization key.
Affected Systems and Versions
- Product: Client Proxy (MCP)
- Vendor: McAfee
- Versions Affected: < 3.0.0
Exploitation Mechanism
The exploitation involves a local user generating an authorization key on the client, typically reserved for network administrators, to gain temporary access to blocked websites.
Mitigation and Prevention
Protecting systems from CVE-2019-3654 is crucial to maintaining security.
Immediate Steps to Take
- Update McAfee Client Proxy (MCP) to version 3.0.0 or higher to mitigate the vulnerability.
- Monitor network traffic for any unauthorized access attempts.
Long-Term Security Practices
- Implement least privilege access to limit user capabilities.
- Regularly review and update security policies to address emerging threats.
Patching and Updates
- Regularly apply security patches and updates to all software and systems to address known vulnerabilities.