CVE-2020-7758 : Security Advisory and Response

This CVE-2020-7758 article provides insights into a Path Traversal vulnerability affecting browserless-chrome versions before 1.40.2-chrome-stable.

Understanding CVE-2020-7758

This vulnerability allows for arbitrary file retrieval due to improper handling of user input in the workspace endpoint.

What is CVE-2020-7758?

The vulnerability in browserless-chrome versions before 1.40.2-chrome-stable enables attackers to fetch arbitrary files from a server by manipulating file paths.

The Impact of CVE-2020-7758

The impact is rated as HIGH with a CVSS base score of 7.5, allowing for unauthorized access to sensitive information.

Technical Details of CVE-2020-7758

This section delves into the technical aspects of the vulnerability.

Vulnerability Description

The flaw arises from user input used to create file paths, which can be exploited to access unauthorized files.

Affected Systems and Versions

Product: browserless-chrome
Versions affected: before 1.40.2-chrome-stable

Exploitation Mechanism

Attackers can manipulate user input to traverse directories and access files outside the intended scope.

Mitigation and Prevention

Protecting systems from CVE-2020-7758 requires immediate actions and long-term security measures.

Immediate Steps to Take

Update browserless-chrome to version 1.40.2-chrome-stable or newer.
Implement input validation to prevent path traversal attacks.

Long-Term Security Practices

Regularly audit and review code for security vulnerabilities.
Educate developers on secure coding practices to prevent similar issues.

Patching and Updates

Stay informed about security patches and updates for browserless-chrome to address known vulnerabilities.