CVE-2021-27266 Explained : Impact and Mitigation

This CVE-2021-27266 affects Foxit PhantomPDF version 10.1.0.37527. It allows remote attackers to disclose sensitive information by exploiting a vulnerability in handling U3D objects within PDF files.

Understanding CVE-2021-27266

This vulnerability, reported by Mat Powell of Trend Micro Zero Day Initiative, requires user interaction to be exploited.

What is CVE-2021-27266?

CVE-2021-27266 is a security vulnerability in Foxit PhantomPDF 10.1.0.37527, allowing remote attackers to disclose sensitive information.

The Impact of CVE-2021-27266

The vulnerability can lead to sensitive information disclosure by exploiting flaws in the handling of U3D objects embedded in PDF files. Attackers can execute arbitrary code with user interaction.

Technical Details of CVE-2021-27266

This vulnerability is classified as CWE-125: Out-of-bounds Read.

Vulnerability Description

The flaw results from insufficient validation of user-supplied data, leading to a read past the end of an allocated object.

Affected Systems and Versions

Foxit PhantomPDF version 10.1.0.37527 is specifically affected by this vulnerability.

Exploitation Mechanism

User interaction is necessary, where a target must visit a malicious page or open a malicious file to trigger the vulnerability.

Mitigation and Prevention

To safeguard systems from CVE-2021-27266, immediate and proactive measures are essential.

Immediate Steps to Take

Users should refrain from visiting unknown or suspicious URLs and refrain from opening attachments from unverified sources.

Long-Term Security Practices

Regularly update Foxit PhantomPDF to the latest version and consider implementing security solutions that detect and block malicious activities.

Patching and Updates

Be vigilant for security patches and updates provided by Foxit to address and mitigate CVE-2021-27266.