CVE-2018-21239 : Exploit Details and Defense Strategies

A vulnerability was uncovered in versions of Foxit Reader and PhantomPDF prior to 9.2, allowing the theft of NTLM credentials through specific actions.

Understanding CVE-2018-21239

This CVE identifies a security flaw in Foxit Reader and PhantomPDF versions before 9.2 that enables the unauthorized extraction of NTLM credentials.

What is CVE-2018-21239?

This CVE pertains to a vulnerability in Foxit Reader and PhantomPDF that permits the theft of NTLM credentials via GoToE or GoToR actions.

The Impact of CVE-2018-21239

The exploitation of this vulnerability can lead to the unauthorized extraction of NTLM credentials, posing a risk to user security and potentially enabling malicious activities.

Technical Details of CVE-2018-21239

This section delves into the technical aspects of the CVE.

Vulnerability Description

The vulnerability in Foxit Reader and PhantomPDF versions before 9.2 allows threat actors to steal NTLM credentials through specific actions like GoToE or GoToR.

Affected Systems and Versions

Product: Foxit Reader and PhantomPDF
Versions: Prior to 9.2

Exploitation Mechanism

Threat actors can exploit this vulnerability by triggering GoToE or GoToR actions within the affected versions of Foxit Reader and PhantomPDF.

Mitigation and Prevention

Protective measures to address the CVE.

Immediate Steps to Take

Update Foxit Reader and PhantomPDF to version 9.2 or later to mitigate the vulnerability.
Avoid clicking on suspicious links or downloading files from untrusted sources.

Long-Term Security Practices

Regularly update software and applications to the latest versions to patch known vulnerabilities.
Implement strong password policies and consider using multi-factor authentication for enhanced security.

Patching and Updates

Ensure timely installation of security patches and updates provided by Foxit Software to address known vulnerabilities.