CVE-2017-10943 : Security Advisory and Response

This CVE-2017-10943 article provides details about a vulnerability in Foxit Reader version 8.3.0.14878 that allows attackers to access sensitive information remotely by exploiting PDF file parsing.

Understanding CVE-2017-10943

This CVE involves a vulnerability in Foxit Reader that can be exploited by malicious webpages or files to gain unauthorized access to sensitive data.

What is CVE-2017-10943?

The vulnerability in Foxit Reader version 8.3.0.14878 allows attackers to read data beyond allocated object boundaries, potentially leading to code execution within the current process.

The Impact of CVE-2017-10943

Attackers can remotely access sensitive information on affected installations of Foxit Reader.
User interaction is required, such as visiting a malicious webpage or opening a malicious file.
The vulnerability is related to improper validation of user-supplied data in PDF file parsing.

Technical Details of CVE-2017-10943

This section covers the technical aspects of the CVE.

Vulnerability Description

The vulnerability, identified as ZDI-CAN-4738, enables attackers to execute code within the current process by exploiting the lack of proper data validation in Foxit Reader.

Affected Systems and Versions

Product: Foxit Reader
Vendor: Foxit
Vulnerable Version: 8.3.0.14878

Exploitation Mechanism

Attackers exploit the vulnerability by manipulating PDF files to read data beyond the allocated object's boundaries.

Mitigation and Prevention

Protecting systems from CVE-2017-10943 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update Foxit Reader to a non-vulnerable version.
Avoid interacting with suspicious or untrusted PDF files or webpages.

Long-Term Security Practices

Regularly update software and security patches.
Educate users on safe browsing habits and file handling practices.

Patching and Updates

Foxit Reader users should apply security patches provided by the vendor to address the vulnerability.