CVE-2020-15637 : Vulnerability Insights and Analysis

This vulnerability in Foxit PhantomPDF 9.7.1.29511 allows remote attackers to disclose sensitive information. User interaction is required for exploitation by visiting a malicious page or opening a malicious file.

Understanding CVE-2020-15637

This CVE involves a flaw within the SetLocalDescription method that can be exploited through JavaScript actions, causing a pointer to be reused after being freed.

What is CVE-2020-15637?

The vulnerability in Foxit PhantomPDF 9.7.1.29511 allows remote attackers to disclose sensitive information by exploiting a flaw in the SetLocalDescription method.

The Impact of CVE-2020-15637

CVSS Base Score: 3.3 (Low)
Attack Vector: Local
User Interaction: Required
CWE ID: CWE-416: Use After Free

Technical Details of CVE-2020-15637

This section provides more technical insights into the vulnerability.

Vulnerability Description

The flaw in the SetLocalDescription method allows attackers to reuse a pointer after freeing it, enabling code execution in the current process.

Affected Systems and Versions

Product: PhantomPDF
Vendor: Foxit
Affected Version: 9.7.1.29511

Exploitation Mechanism

Attackers can exploit this vulnerability by performing actions in JavaScript to manipulate pointers and execute code within the current process.

Mitigation and Prevention

Protecting systems from CVE-2020-15637 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update Foxit PhantomPDF to a non-vulnerable version.
Avoid visiting suspicious or untrusted websites.
Be cautious when opening files from unknown sources.

Long-Term Security Practices

Regularly update software and security patches.
Implement security measures like firewalls and antivirus programs.
Educate users on safe browsing habits and file handling.

Patching and Updates

Ensure that Foxit PhantomPDF is regularly updated to the latest secure version.