CVE-2018-17671 Explained : Impact and Mitigation

A vulnerability has been discovered in Foxit Reader 9.2.0.9297, potentially allowing remote attackers to access sensitive information by exploiting a flaw related to the handling of the Lower method of a XFA object.

Understanding CVE-2018-17671

This CVE entry highlights a security vulnerability in Foxit Reader version 9.2.0.9297 that could be exploited by attackers to execute code within the current process.

What is CVE-2018-17671?

The vulnerability in Foxit Reader 9.2.0.9297 allows remote attackers to access sensitive information by exploiting a flaw in the handling of the Lower method of a XFA object. User interaction is required for exploitation, such as visiting a malicious website or opening a malicious file.

The Impact of CVE-2018-17671

Remote attackers can potentially access sensitive information on vulnerable installations of Foxit Reader 9.2.0.9297.
The flaw arises from a failure to appropriately validate user-provided data, leading to reading beyond the allocated buffer.
Exploiting this vulnerability could allow attackers to execute code within the current process.

Technical Details of CVE-2018-17671

This section provides detailed technical information about the vulnerability.

Vulnerability Description

The vulnerability is classified as CWE-125: Out-of-bounds Read, indicating a specific type of security weakness related to reading beyond the allocated buffer.

Affected Systems and Versions

Product: Reader
Vendor: Foxit
Version: 9.2.0.9297

Exploitation Mechanism

Attackers exploit the vulnerability by manipulating the handling of the Lower method of a XFA object.
User interaction, such as visiting a malicious website or opening a malicious file, is necessary for successful exploitation.

Mitigation and Prevention

Protecting systems from CVE-2018-17671 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update Foxit Reader to a patched version that addresses the vulnerability.
Avoid visiting suspicious websites or opening files from untrusted sources.

Long-Term Security Practices

Regularly update software and applications to the latest versions.
Implement security measures such as firewalls and antivirus software to prevent exploitation of vulnerabilities.

Patching and Updates

Check for security bulletins and updates from Foxit to patch the vulnerability.