CVE-2020-26877 : Vulnerability Insights and Analysis

ApiFest OAuth 2.0 Server 0.3.1 is vulnerable to an open redirector attack due to inadequate validation of redirect URIs, potentially leading to the leakage of authorization codes.

Understanding CVE-2020-26877

ApiFest OAuth 2.0 Server 0.3.1 lacks proper validation of redirect URIs, making it susceptible to exploitation.

What is CVE-2020-26877?

ApiFest OAuth 2.0 Server 0.3.1 does not validate redirect URIs as per RFC 6749, allowing attackers to manipulate URIs and obtain leaked authorization codes.

The Impact of CVE-2020-26877

The vulnerability enables attackers to craft requests with controlled redirect URIs, leading to the unauthorized acquisition of authorization codes.

Technical Details of CVE-2020-26877

ApiFest OAuth 2.0 Server 0.3.1 vulnerability details.

Vulnerability Description

The server fails to verify redirect URIs, permitting attackers to intercept authorization codes.

Affected Systems and Versions

Product: Not applicable
Vendor: Not applicable
Version: 0.3.1 (affected)

Exploitation Mechanism

Attackers exploit the lack of URI validation to manipulate redirect URIs and intercept authorization codes.

Mitigation and Prevention

Protect systems against CVE-2020-26877.

Immediate Steps to Take

Implement strict URI validation mechanisms.
Monitor and log authorization code transmissions.
Educate users on secure URI practices.

Long-Term Security Practices

Regularly update and patch OAuth server software.
Conduct security audits to identify and address vulnerabilities.
Stay informed about OAuth security best practices.

Patching and Updates

Apply patches and updates provided by ApiFest to address the URI validation vulnerability.