CVE-2017-16576 Explained : Impact and Mitigation
Learn about CVE-2017-16576, a critical vulnerability in Foxit Reader 8.3.1.21155 that allows attackers to execute arbitrary code. Find mitigation steps and long-term security practices here.
A vulnerability has been discovered in Foxit Reader 8.3.1.21155 that allows attackers to execute arbitrary code on vulnerable systems.
Understanding CVE-2017-16576
This CVE identifies a critical vulnerability in Foxit Reader version 8.3.1.21155 that can be exploited by malicious actors to execute code on affected systems.
What is CVE-2017-16576?
The vulnerability in Foxit Reader 8.3.1.21155 enables attackers to execute code on vulnerable systems by exploiting a flaw within the XFA's field element. The issue arises from the failure to validate the presence of an object before performing operations on it.
The Impact of CVE-2017-16576
Exploiting this vulnerability allows attackers to execute code within the current process, potentially leading to unauthorized access, data theft, or system compromise.
Technical Details of CVE-2017-16576
This section provides detailed technical information about the vulnerability.
Vulnerability Description
The vulnerability, identified as ZDI-CAN-5092, allows remote attackers to execute arbitrary code on systems running Foxit Reader 8.3.1.21155. User interaction is required, such as visiting a malicious page or opening a malicious file.
Affected Systems and Versions
- Product: Foxit Reader
- Vendor: Foxit
- Affected Version: 8.3.1.21155
Exploitation Mechanism
The vulnerability lies within the XFA's field element due to the lack of validating the existence of an object before performing operations on it. Attackers can exploit this flaw to execute code under the context of the current process.
Mitigation and Prevention
Protecting systems from CVE-2017-16576 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Update Foxit Reader to a patched version or consider alternative PDF readers.
- Avoid visiting suspicious websites or opening files from unknown sources.
Long-Term Security Practices
- Regularly update software and applications to patch known vulnerabilities.
- Implement robust cybersecurity measures such as firewalls and antivirus software.
Patching and Updates
- Stay informed about security bulletins and updates from Foxit to address vulnerabilities promptly.