CVE-2017-3966 Explained : Impact and Mitigation

A vulnerability in the web interface of McAfee Network Security Management (NSM) prior to version 8.2.7.42.2 allows remote attackers to exploit session variables, resource IDs, and trusted credentials.

Understanding CVE-2017-3966

This CVE involves the unauthorized use of session variables and other credentials, potentially leading to harm to user browsers.

What is CVE-2017-3966?

CVE-2017-3966 is a vulnerability in McAfee Network Security Management (NSM) that enables remote attackers to misuse session tokens and trusted credentials, impacting user browsers.

The Impact of CVE-2017-3966

Confidentiality Impact: Low
Integrity Impact: High
Availability Impact: High
Privileges Required: High
User Interaction: Required

Technical Details of CVE-2017-3966

This section provides detailed technical information about the vulnerability.

Vulnerability Description

The vulnerability allows attackers to exploit session variables, resource IDs, and trusted credentials in the web interface of McAfee NSM before version 8.2.7.42.2.

Affected Systems and Versions

Product: Network Security Management (NSM)
Vendor: McAfee
Affected Version: 8.2 (custom version less than 8.2.7.42.2)

Exploitation Mechanism

Attackers can reuse exposed session tokens in the application URL to harm user browsers or exploit their functionality.

Mitigation and Prevention

Protecting systems from CVE-2017-3966 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update McAfee NSM to version 8.2.7.42.2 or higher.
Monitor and restrict access to the web interface.
Educate users on safe browsing practices.

Long-Term Security Practices

Regularly update and patch all software and applications.
Implement network segmentation to limit the impact of potential breaches.
Conduct regular security audits and penetration testing.

Patching and Updates

Apply security patches provided by McAfee promptly.
Stay informed about security advisories and updates from McAfee.