CVE-2021-27269 : Exploit Details and Defense Strategies

This CVE-2021-27269 article provides an in-depth analysis of a vulnerability affecting Foxit PhantomPDF 10.1.0.37527, allowing attackers to execute arbitrary code with high impact. User interaction is required for exploitation.

Understanding CVE-2021-27269

This section delves into the details of CVE-2021-27269, its impact, technical description, affected systems, exploitation mechanism, and mitigation strategies.

What is CVE-2021-27269?

CVE-2021-27269 is a vulnerability in Foxit PhantomPDF 10.1.0.37527 that enables remote attackers to execute arbitrary code by manipulating U3D objects within PDF files due to improper validation.

The Impact of CVE-2021-27269

The impact of CVE-2021-27269 is high, with a CVSS base score of 7.8, affecting confidentiality, integrity, and availability. Attackers can exploit this flaw to execute code within the process context.

Technical Details of CVE-2021-27269

This section provides a detailed breakdown of the vulnerability, including its description, affected systems, versions, and exploitation methods.

Vulnerability Description

The vulnerability arises from inadequate validation of user-supplied data, leading to a write past the end of an allocated structure when handling U3D objects in PDF files.

Affected Systems and Versions

Foxit PhantomPDF version 10.1.0.37527 is specifically impacted by this vulnerability, requiring user interaction for exploitation.

Exploitation Mechanism

To exploit CVE-2021-27269, attackers must lure targets into interacting with a malicious page or opening a nefarious file containing manipulated U3D objects.

Mitigation and Prevention

This section outlines immediate steps to take and long-term practices to enhance security against CVE-2021-27269, emphasizing patching and updates.

Immediate Steps to Take

Users should exercise caution while browsing and avoid opening suspicious files or visiting untrusted websites to mitigate the risk of exploitation.

Long-Term Security Practices

Implementing robust security measures, conducting regular security audits, and educating users on safe browsing practices can reinforce defenses against similar vulnerabilities.

Patching and Updates

It is crucial to apply security patches released by Foxit promptly to address CVE-2021-27269 and prevent potential exploitation.