CVE-2009-3782 in Userpoints
Summary
by MITRE
Unspecified vulnerability in Userpoints 6.x before 6.x-1.1, a module for Drupal, allows remote authenticated users with "View own userpoints" permissions to read the userpoint data of arbitrary users via unknown attack vectors.
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Analysis
by VulDB Data Team • 01/23/2019
The vulnerability identified as CVE-2009-3782 affects the Userpoints module version 6.x prior to 6.x-1.1 in the Drupal content management system. This represents a critical authorization flaw that undermines the security model of the platform by allowing authenticated users to bypass normal access controls and retrieve sensitive user point data from other accounts. The vulnerability specifically targets users who possess the "View own userpoints" permission, which is typically granted to registered users within the Drupal system. The unspecified attack vectors indicate that the flaw exists in the module's data access mechanisms, potentially allowing attackers to exploit various pathways to achieve unauthorized data retrieval.
The technical nature of this vulnerability aligns with CWE-284, which describes improper access control issues in software systems. The flaw essentially creates a privilege escalation scenario where users with limited permissions can access data belonging to other users through malformed requests or direct manipulation of the module's data retrieval functions. In Drupal's permission system, this vulnerability enables a user to leverage their legitimate access rights to perform unauthorized data reading operations against other users' point balances, which could include sensitive information about user engagement, reputation metrics, or reward status within the platform. The attack vector operates through the module's API or interface functions that handle user point data retrieval, where proper input validation and access control checks are either missing or insufficient.
The operational impact of this vulnerability extends beyond simple information disclosure, as user point data often correlates with user behavior, engagement levels, and platform participation metrics. Attackers could potentially use this information for social engineering attacks, reputation manipulation, or to identify high-value users within the platform. The vulnerability affects all installations using the vulnerable Userpoints module version, making it particularly concerning for large Drupal deployments where user point systems are integral to community engagement and gamification features. Organizations relying on Drupal for community platforms, educational systems, or reward-based applications would face significant risks, as this flaw could enable systematic data harvesting across multiple user accounts. The vulnerability's remote nature means that attackers do not require physical access to the system, and the authenticated requirement reduces the barrier to exploitation compared to fully remote attacks.
Mitigation strategies for CVE-2009-3782 focus primarily on immediate module updates to version 6.x-1.1 or later, which contain the necessary patches to address the access control bypass. Organizations should also implement network segmentation and access controls to limit the attack surface, particularly for systems where the Userpoints module is deployed. Security teams should conduct thorough audits of user permissions and ensure that the principle of least privilege is enforced across all Drupal modules. Additionally, monitoring systems should be configured to detect unusual data access patterns that might indicate exploitation attempts, and regular security assessments should be performed to identify similar vulnerabilities in other contributed modules. The remediation process should include comprehensive testing to ensure that the updated module functions correctly without introducing regressions in platform functionality, and organizations should maintain updated security policies that address the risks associated with contributed module vulnerabilities in open source platforms.