CVE-2018-3770 : What You Need to Know

Markdown-pdf versions before 9.0.0 contain a vulnerability known as path traversal, allowing users to insert malicious HTML code that can lead to unauthorized access and reading of local files.

Understanding CVE-2018-3770

Markdown-pdf version <9.0.0 has a path traversal vulnerability that can be exploited to read local files.

What is CVE-2018-3770?

This CVE refers to a path traversal vulnerability in markdown-pdf versions prior to 9.0.0, enabling the insertion of malicious HTML code for unauthorized file access.

The Impact of CVE-2018-3770

The vulnerability can result in unauthorized access and reading of local files, potentially leading to data breaches and security compromises.

Technical Details of CVE-2018-3770

Markdown-pdf version <9.0.0 is susceptible to a path traversal exploit.

Vulnerability Description

A path traversal flaw in markdown-pdf allows users to inject malicious HTML code, compromising file security.

Affected Systems and Versions

Product: markdown-pdf
Vendor: HackerOne
Vulnerable Version: 9.0.0

Exploitation Mechanism

The vulnerability permits attackers to manipulate file paths, leading to the execution of unauthorized code and file access.

Mitigation and Prevention

Immediate action and long-term security measures are crucial to mitigate the risks associated with CVE-2018-3770.

Immediate Steps to Take

Update markdown-pdf to version 9.0.0 or higher to eliminate the vulnerability.
Implement input validation to prevent path traversal attacks.

Long-Term Security Practices

Regularly monitor and update software to address security vulnerabilities promptly.
Educate users on safe coding practices and the risks of path traversal vulnerabilities.

Patching and Updates

Apply security patches and updates provided by HackerOne for markdown-pdf to ensure ongoing protection against exploits.