CVE-2020-17414 : Exploit Details and Defense Strategies

This vulnerability allows local attackers to escalate privileges on affected installations of Foxit Reader 10.0.0.35798. An attacker must first obtain the ability to execute low-privileged code on the target system to exploit this vulnerability. The flaw lies in the handling of configuration files by the Foxit Reader Update Service, resulting from incorrect permissions on a critical resource.

Understanding CVE-2020-17414

This CVE entry describes a privilege escalation vulnerability in Foxit Reader version 10.0.0.35798.

What is CVE-2020-17414?

CVE-2020-17414 is a vulnerability that allows local attackers to elevate their privileges on systems running Foxit Reader 10.0.0.35798. By exploiting this flaw, an attacker can execute code in the context of SYSTEM.

The Impact of CVE-2020-17414

The impact of this vulnerability is rated as high, with a CVSS base score of 7.8. The confidentiality, integrity, and availability of the affected system are all at risk.

Technical Details of CVE-2020-17414

This section provides more technical insights into the vulnerability.

Vulnerability Description

The vulnerability stems from incorrect permissions set on a resource used by the Foxit Reader Update Service, allowing attackers to escalate privileges.

Affected Systems and Versions

Product: Foxit Reader
Vendor: Foxit
Version: 10.0.0.35798

Exploitation Mechanism

To exploit this vulnerability, an attacker needs the ability to execute low-privileged code on the target system. By manipulating the configuration files, the attacker can escalate privileges and execute code as SYSTEM.

Mitigation and Prevention

Protecting systems from CVE-2020-17414 requires immediate actions and long-term security practices.

Immediate Steps to Take

Apply security patches provided by Foxit promptly.
Monitor for any unusual system behavior that could indicate exploitation of the vulnerability.

Long-Term Security Practices

Regularly update and patch software to address known vulnerabilities.
Implement the principle of least privilege to limit the impact of potential attacks.

Patching and Updates

Ensure that Foxit Reader is updated to a patched version that addresses the privilege escalation vulnerability.