CVE-2021-27582 : Vulnerability Insights and Analysis

A Mass Assignment vulnerability was discovered in the OpenID Connect server implementation for MITREid Connect through version 1.3.3, specifically in org/mitre/oauth2/web/OAuthConfirmationController.java. This vulnerability is caused by the unsafe usage of the @ModelAttribute annotation during the OAuth authorization flow.

Understanding CVE-2021-27582

This section provides insights into the nature and impact of the CVE-2021-27582 vulnerability.

What is CVE-2021-27582?

CVE-2021-27582 is a Mass Assignment (Autobinding) vulnerability in the OpenID Connect server implementation for MITREid Connect through version 1.3.3. The vulnerability arises due to the unsafe usage of the @ModelAttribute annotation during OAuth authorization.

The Impact of CVE-2021-27582

The vulnerability allows HTTP request parameters to affect an authorizationRequest, leading to potential exploitation by malicious actors.

Technical Details of CVE-2021-27582

This section delves into the specific technical aspects of the CVE-2021-27582 vulnerability.

Vulnerability Description

The vulnerability resides in org/mitre/oauth2/web/OAuthConfirmationController.java and stems from the incorrect use of the @ModelAttribute annotation during the OAuth authorization flow.

Affected Systems and Versions

MITREid Connect versions up to 1.3.3 are impacted by this vulnerability.

Exploitation Mechanism

Malicious actors can exploit this vulnerability by manipulating HTTP request parameters to influence the authorizationRequest.

Mitigation and Prevention

Understanding how to mitigate and prevent the CVE-2021-27582 vulnerability is crucial for maintaining system security.

Immediate Steps to Take

It is recommended to update MITREid Connect to a patched version beyond 1.3.3 to mitigate the vulnerability. Additionally, restrict and sanitize user inputs to prevent unauthorized parameter manipulation.

Long-Term Security Practices

Implement secure coding practices, input validation mechanisms, and regular security audits to identify and address similar vulnerabilities in the future.

Patching and Updates

Stay informed about security patches and updates released by MITREid Connect to ensure a secure environment and protect against known vulnerabilities.