CVE-2017-16573 : Security Advisory and Response

A security weakness has been discovered in Foxit Reader 8.3.1.21155, potentially allowing unauthorized access to sensitive information by interacting with malicious webpages or harmful files.

Understanding CVE-2017-16573

This CVE identifies a vulnerability in Foxit Reader that could be exploited by attackers to execute code within the current process context.

What is CVE-2017-16573?

The vulnerability in Foxit Reader 8.3.1.21155 allows remote attackers to access sensitive information by exploiting flaws in the parsing of LZWDecode filters.

The Impact of CVE-2017-16573

Unauthorized individuals may remotely access sensitive information on vulnerable Foxit Reader installations.
Attackers can execute code within the current process context by leveraging this vulnerability.

Technical Details of CVE-2017-16573

This section provides detailed technical information about the CVE.

Vulnerability Description

Identified as ZDI-CAN-5078, the vulnerability arises due to improper validation of user-supplied data, leading to reading beyond the allocated object.

Affected Systems and Versions

Product: Foxit Reader
Vendor: Foxit
Version: 8.3.1.21155

Exploitation Mechanism

Attackers can exploit this vulnerability by interacting with a malicious webpage or opening a harmful file.

Mitigation and Prevention

Protecting systems from CVE-2017-16573 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update Foxit Reader to the latest version to patch the vulnerability.
Avoid interacting with suspicious or untrusted webpages and files.

Long-Term Security Practices

Regularly update software and applications to mitigate potential vulnerabilities.
Implement security measures such as firewalls and antivirus software.
Educate users on safe browsing practices to prevent exploitation of vulnerabilities.
Monitor security bulletins and advisories for the latest information.
Consider using alternative PDF readers if necessary.

Patching and Updates

Foxit has released security bulletins addressing this vulnerability. Ensure timely installation of patches to secure systems.