CVE-2020-15230 : What You Need to Know

Vapor is a web framework for Swift. In Vapor before version 4.29.4, attackers can access data at arbitrary filesystem paths on the same host as an application. Only applications using FileMiddleware are affected. This vulnerability has been assigned a CVSS base score of 8.5, indicating a high severity level.

Understanding CVE-2020-15230

In this CVE, an arbitrary file read vulnerability in Vapor could allow attackers to access sensitive data on the host system.

What is CVE-2020-15230?

This CVE refers to a security flaw in Vapor versions prior to 4.29.4 that enables attackers to read files from arbitrary paths on the host system.

The Impact of CVE-2020-15230

The vulnerability poses a high risk as it allows unauthorized access to sensitive data on the same host as the application, potentially leading to data breaches and unauthorized information disclosure.

Technical Details of CVE-2020-15230

This section covers the technical aspects of the vulnerability.

Vulnerability Description

The vulnerability in Vapor allows attackers to read files from arbitrary paths on the host system, impacting applications using FileMiddleware.

Affected Systems and Versions

Product: Vapor
Vendor: Vapor
Versions Affected: < 4.29.4

Exploitation Mechanism

Attackers can exploit this vulnerability by manipulating file paths to access sensitive data on the host system.

Mitigation and Prevention

Protecting systems from CVE-2020-15230 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update Vapor to version 4.29.4 or newer to mitigate the vulnerability.
Monitor and restrict access to sensitive files and directories.

Long-Term Security Practices

Implement secure coding practices to prevent path traversal vulnerabilities.
Regularly audit and review file access permissions to limit exposure to sensitive data.

Patching and Updates

Ensure timely installation of security patches and updates to address known vulnerabilities in Vapor.