CVE-2020-10899 : Exploit Details and Defense Strategies

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 processing of XFA templates. 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-10132.

Understanding CVE-2020-10899

This CVE identifies a critical vulnerability in Foxit Reader that could allow attackers to execute arbitrary code on the target system.

What is CVE-2020-10899?

CVE-2020-10899 is a security vulnerability in Foxit Reader 9.7.1.29511 that enables remote attackers to run malicious code on the affected system.

The Impact of CVE-2020-10899

The vulnerability has a CVSS base score of 7.8, indicating a high severity level with significant impacts on confidentiality, integrity, and availability of the system.

Technical Details of CVE-2020-10899

This section provides detailed technical information about the vulnerability.

Vulnerability Description

The vulnerability allows remote attackers to execute arbitrary code on systems running Foxit Reader 9.7.1.29511 by exploiting a flaw in the processing of XFA templates.

Affected Systems and Versions

Product: Foxit Reader
Vendor: Foxit
Version: 9.7.1.29511

Exploitation Mechanism

Attack Complexity: Low
Attack Vector: Local
Privileges Required: None
User Interaction: Required
Scope: Unchanged
The attacker needs the target to visit a malicious page or open a malicious file to exploit the vulnerability.

Mitigation and Prevention

Protecting systems from CVE-2020-10899 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update Foxit Reader to the latest version to patch the vulnerability.
Avoid visiting suspicious or untrusted websites.
Be cautious when opening files from unknown sources.

Long-Term Security Practices

Regularly update software and applications to mitigate known vulnerabilities.
Implement security measures like firewalls and antivirus software to prevent attacks.

Patching and Updates

Foxit Software provides security bulletins with patches for known vulnerabilities.