CVE-2022-42373 : Security Advisory and Response

This vulnerability allows remote attackers to execute arbitrary code on affected installations of PDF-XChange Editor. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of U3D files. Crafted data in a U3D file can trigger a write past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-18402.

Understanding CVE-2022-42373

CVE-2022-42373 details a critical vulnerability in PDF-XChange Editor that can lead to remote code execution.

What is CVE-2022-42373?

CVE-2022-42373 is a vulnerability that allows remote attackers to execute arbitrary code on PDF-XChange Editor by exploiting a flaw in the parsing of U3D files.

The Impact of CVE-2022-42373

The impact of CVE-2022-42373 is severe as it allows attackers to execute code in the context of the current process, posing a significant risk to affected systems.

Technical Details of CVE-2022-42373

This section provides a deeper insight into the technical aspects of CVE-2022-42373.

Vulnerability Description

The vulnerability arises from the improper parsing of U3D files, enabling attackers to trigger a buffer overflow and execute malicious code.

Affected Systems and Versions

The vulnerability affects PDF-XChange Editor version 9.4.362.0.

Exploitation Mechanism

Attackers can exploit this vulnerability by crafting malicious data in a U3D file to overwrite buffer boundaries and execute unauthorized code.

Mitigation and Prevention

Protecting systems from CVE-2022-42373 requires immediate action and long-term security practices.

Immediate Steps to Take

Users should update PDF-XChange Editor to a non-vulnerable version, refrain from opening suspicious files, and avoid visiting untrusted websites.

Long-Term Security Practices

Implementing robust security measures, such as keeping software up to date, using endpoint protection, and educating users about phishing attacks, can enhance overall security.

Patching and Updates

PDF-XChange Editor users should regularly check for security updates from the vendor and apply patches promptly to mitigate the risk of exploitation.