CVE-2020-10906 Explained : Impact and Mitigation

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Foxit Reader 9.7.1.29511. 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 resetForm method. The issue results from the lack of validating the existence of an object prior to performing operations on the object. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-10614.

Understanding CVE-2020-10906

This CVE pertains to a critical vulnerability in Foxit Reader that could allow remote attackers to execute arbitrary code.

What is CVE-2020-10906?

Vulnerability Type: Use After Free (CWE-416)
CVSS Base Score: 7.8 (High Severity)
Attack Vector: Local
User Interaction: Required
Impact: High Confidentiality, Integrity, and Availability

The Impact of CVE-2020-10906

This vulnerability could have severe consequences:

Remote attackers can execute arbitrary code on affected systems.
User interaction is necessary, requiring victims to visit a malicious page or open a malicious file.

Technical Details of CVE-2020-10906

Vulnerability Description

The vulnerability lies in Foxit Reader 9.7.1.29511, allowing attackers to execute code due to improper object validation.

Affected Systems and Versions

Product: Foxit Reader
Vendor: Foxit
Version: 9.7.1.29511

Exploitation Mechanism

Attackers exploit the resetForm method's lack of object validation to execute arbitrary code.

Mitigation and Prevention

Immediate Steps to Take

Update Foxit Reader to the latest version.
Avoid visiting untrusted websites or opening suspicious files.

Long-Term Security Practices

Regularly update software and security patches.
Implement security awareness training to recognize phishing attempts.

Patching and Updates

Foxit Software provides security bulletins for updates.