CVE-2020-10912 : Vulnerability Insights and Analysis

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Foxit PhantomPDF 9.7.0.29478. 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 handling of the SetFieldValue command of the communication API. The issue results from the lack of proper validation of user-supplied data, which can result in a type confusion condition. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-9945.

Understanding CVE-2020-10912

This CVE-2020-10912 vulnerability affects Foxit PhantomPDF version 9.7.0.29478.

What is CVE-2020-10912?

Remote attackers can execute arbitrary code on affected installations of Foxit PhantomPDF 9.7.0.29478.
User interaction is required for exploitation by visiting a malicious page or opening a malicious file.
The vulnerability lies in the handling of the SetFieldValue command of the communication API.

The Impact of CVE-2020-10912

CVSS Score: 7.8 (High)
Attack Vector: Local
Attack Complexity: Low
User Interaction: Required
Confidentiality, Integrity, and Availability Impact: High

Technical Details of CVE-2020-10912

This section provides detailed technical information about the vulnerability.

Vulnerability Description

The vulnerability allows remote attackers to execute arbitrary code on affected installations of Foxit PhantomPDF 9.7.0.29478.
It stems from the lack of proper validation of user-supplied data, leading to a type confusion condition.

Affected Systems and Versions

Product: PhantomPDF
Vendor: Foxit
Version: 9.7.0.29478

Exploitation Mechanism

Attackers can exploit this vulnerability by tricking users into visiting a malicious page or opening a malicious file.
The flaw is in the handling of the SetFieldValue command of the communication API.

Mitigation and Prevention

Protecting systems from CVE-2020-10912 requires immediate action and long-term security practices.

Immediate Steps to Take

Update Foxit PhantomPDF to a non-vulnerable version.
Avoid visiting suspicious websites or opening unknown files.
Implement security awareness training for users.

Long-Term Security Practices

Regularly update software and security patches.
Employ network segmentation to limit the impact of potential attacks.

Patching and Updates

Check for security bulletins and updates from Foxit.
Apply patches promptly to mitigate the risk of exploitation.