CVE-2010-2125 in Rotor
Summary
by MITRE
Multiple cross-site scripting (XSS) vulnerabilities in the Rotor Banner module 5.x before 5.x-1.8 and 6.x before 6.x-2.5 for Drupal allow remote authenticated users, with "create rotor item" or "edit any rotor item" privileges, to inject arbitrary web script or HTML via the (1) srs, (2) title, or (3) alt image attribute.
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Analysis
by VulDB Data Team • 09/14/2021
The CVE-2010-2125 vulnerability represents a critical cross-site scripting flaw within the Rotor Banner module for Drupal content management systems. This vulnerability specifically affects versions 5.x prior to 5.x-1.8 and 6.x prior to 6.x-2.5, creating a significant security risk for Drupal installations that utilize this module. The flaw allows authenticated users with specific permissions to execute malicious scripts within the context of other users' browsers, potentially leading to session hijacking, data theft, or further exploitation of the compromised systems. The vulnerability stems from insufficient input validation and sanitization within the module's handling of user-supplied data.
The technical implementation of this vulnerability occurs through three primary attack vectors: the srs attribute, title attribute, and alt image attribute. When authenticated users with "create rotor item" or "edit any rotor item" privileges submit content containing malicious script code within these attributes, the system fails to properly sanitize or escape the input before rendering it in web pages. This lack of proper input validation creates an environment where attacker-controlled scripts can be executed in the browsers of unsuspecting users who view the affected content. The vulnerability is particularly dangerous because it requires only basic user privileges within the Drupal system, making it accessible to users who may not have administrative access but still possess the ability to create or modify banner content.
The operational impact of CVE-2010-2125 extends beyond simple script injection, potentially enabling sophisticated attacks that can compromise entire user sessions and access control mechanisms. An attacker could craft malicious payloads that steal session cookies, redirect users to phishing sites, or even execute more complex attacks such as credential harvesting or privilege escalation within the Drupal environment. The vulnerability also demonstrates poor security practices in input handling, which aligns with CWE-79 - Improper Neutralization of Input During Web Page Generation, a fundamental weakness in web application security. This weakness is particularly concerning in CMS environments where content creators may not be security experts and may inadvertently introduce malicious code through seemingly benign content creation activities.
The attack surface for this vulnerability is limited to specific Drupal versions and requires attackers to have legitimate user accounts with defined permissions, but the potential for damage remains significant. Organizations should implement comprehensive patch management strategies to address this vulnerability, as the Rotor Banner module was designed to provide dynamic content management features that are frequently used in business environments. The vulnerability also highlights the importance of least privilege principles in Drupal installations, where users should only be granted the minimum permissions necessary to perform their tasks. Security professionals should also consider implementing additional monitoring and input validation measures beyond the standard patching approach, particularly in environments where immediate patching may not be feasible.
This vulnerability serves as a reminder of the critical importance of input validation and output encoding in web applications, particularly within content management systems where user-generated content is prevalent. The attack vectors identified in CVE-2010-2125 demonstrate how seemingly innocuous attributes in web forms can become attack surfaces when proper security controls are not implemented. Organizations should conduct regular security assessments of their Drupal installations, paying particular attention to contributed modules that may not receive the same level of security scrutiny as core components. The remediation strategy should include immediate patching of affected versions, followed by comprehensive security reviews of all contributed modules to identify similar vulnerabilities that may exist in the broader Drupal ecosystem. This vulnerability also reinforces the need for proper security training for content creators and administrators who may unknowingly introduce security risks through their content management activities.