CVE-2020-7777 : Vulnerability Insights and Analysis

This CVE-2020-7777 article provides insights into a vulnerability affecting the 'jsen' package, leading to Arbitrary Code Execution.

Understanding CVE-2020-7777

This CVE involves a security issue in the 'jsen' package that allows attackers to execute arbitrary JavaScript code on the victim's machine.

What is CVE-2020-7777?

The vulnerability in the 'jsen' package enables attackers to run arbitrary JavaScript code by controlling the schema file, potentially leading to Arbitrary Code Execution.

The Impact of CVE-2020-7777

The impact of this CVE is rated as HIGH, with a CVSS base score of 7.2, indicating significant confidentiality, integrity, and availability impacts.

Technical Details of CVE-2020-7777

This section delves into the technical aspects of the CVE-2020-7777 vulnerability.

Vulnerability Description

The vulnerability arises from improper sanitization of the required field in the schema, allowing attackers to execute arbitrary code via Function.apply().

Affected Systems and Versions

Package: jsen
Versions affected: All versions

Exploitation Mechanism

Attack Complexity: Low
Attack Vector: Network
Privileges Required: High
User Interaction: None
Exploit Code Maturity: Proof of Concept

Mitigation and Prevention

Protecting systems from CVE-2020-7777 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update 'jsen' package to the latest secure version.
Avoid using untrusted schema files.

Long-Term Security Practices

Implement input validation and sanitization in code.
Regularly monitor for security updates and patches.

Patching and Updates

Stay informed about security advisories related to 'jsen'.