Unauthenticated IDOR in Colissimo Officiel WooCommerce Plugin

Impact Analysis

This vulnerability can lead to unauthorized access to sensitive data or unauthorized interactions with the database.

Because it is exploitable without authentication, it poses a moderate risk of mass exploitation.

The impact includes potential data leakage and disruption of service or data integrity.

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Detection Guidance

The vulnerability allows unauthenticated attackers to bypass authorization and access sensitive data or interact with the database via Insecure Direct Object References (IDOR) in the Colissimo Officiel WooCommerce plugin versions 2.9.0 and below.

To detect this vulnerability on your system or network, you should monitor for unauthorized access attempts or suspicious requests targeting the Colissimo Officiel plugin endpoints.

While no specific detection commands are provided, you can use web server logs or intrusion detection systems to look for unusual HTTP requests that attempt to access or manipulate delivery method data without authentication.

For example, you might use commands like the following to search web server logs for suspicious access patterns:

• grep -i 'colissimo' /var/log/apache2/access.log | grep -E 'GET|POST'
• grep -i 'woocommerce' /var/log/nginx/access.log | grep -E 'id=|delivery_method='

Additionally, deploying a web application firewall (WAF) with rules to detect and block IDOR attack patterns can help identify exploitation attempts.

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Mitigation Strategies

The immediate and recommended mitigation step is to update the Colissimo Officiel : Méthodes de livraison pour WooCommerce plugin to version 2.10.0 or later, where this vulnerability is fixed.

Until the update can be applied, Patchstack has provided a mitigation rule that can be used to block attacks exploiting this vulnerability.

Implementing this mitigation rule in your web application firewall or security system can help prevent unauthorized access attempts.

Additionally, monitor your system for suspicious activity and restrict access to the plugin endpoints if possible.

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Compliance Impact

The vulnerability allows unauthenticated attackers to bypass authorization and access sensitive data or interact with the database. This unauthorized access to sensitive data could potentially lead to non-compliance with data protection regulations such as GDPR or HIPAA, which require strict controls on access to personal and sensitive information.

However, the provided information does not explicitly detail the specific compliance impacts or mention any direct regulatory violations.

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Executive Summary

The vulnerability is an Insecure Direct Object References (IDOR) issue in the WordPress plugin "Colissimo Officiel : Méthodes de livraison pour WooCommerce" versions 2.9.0 and below.

It allows unauthenticated attackers to bypass authorization controls and directly access sensitive data or interact with the database without proper permissions.

This means attackers can exploit the flaw without logging in or having any privileges.

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