CVE-2015-4366 in Mover Module
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in the Mover module 6.x-1.0 for Drupal allows remote authenticated users with certain permissions to inject arbitrary web script or HTML via unspecified vectors.
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Analysis
by VulDB Data Team • 04/07/2019
The CVE-2015-4366 vulnerability represents a critical cross-site scripting flaw within the Mover module version 6.x-1.0 for Drupal content management systems. This vulnerability specifically affects authenticated users who possess certain permissions within the Drupal environment, creating a significant security risk that can be exploited by malicious actors to execute arbitrary web scripts or HTML code. The Mover module, designed to facilitate content migration and movement within Drupal installations, contains a flaw that allows attackers to inject malicious payloads into the system through unspecified vectors, potentially compromising the entire web application.
The technical nature of this vulnerability stems from insufficient input validation and output sanitization within the Mover module's code implementation. When authenticated users with appropriate permissions interact with the module's functionality, the system fails to properly sanitize user-supplied data before rendering it in web pages. This lack of proper sanitization creates an opening for attackers to inject malicious scripts that can execute in the context of other users' browsers. The vulnerability's classification as a persistent XSS issue means that malicious payloads can be stored within the application and executed whenever affected users access the compromised content, making it particularly dangerous for long-term exploitation. According to CWE standards, this vulnerability maps to CWE-79 which specifically addresses improper neutralization of input during web page generation, a fundamental weakness in web application security.
The operational impact of CVE-2015-4366 extends far beyond simple script injection, as it can enable attackers to perform a wide range of malicious activities within the compromised Drupal environment. Attackers can leverage this vulnerability to steal session cookies, hijack user accounts, redirect users to malicious websites, or even execute arbitrary commands on the affected system. The authenticated nature of the vulnerability means that attackers need to first obtain legitimate user credentials, but once achieved, they can exploit this weakness to escalate their privileges or compromise other users within the same Drupal installation. This vulnerability particularly affects organizations that rely heavily on Drupal for content management, as it can be exploited to undermine the integrity of entire websites and potentially lead to data breaches or service disruptions. The attack vector implications align with ATT&CK technique T1059.001 for command and scripting interpreter, where attackers can use the XSS vulnerability as a foothold for further exploitation.
Organizations affected by this vulnerability should implement immediate remediation measures including updating to the patched version of the Mover module or applying the appropriate security patches provided by the Drupal security team. The recommended mitigation strategy involves comprehensive input validation and output encoding mechanisms to prevent malicious content from being executed within the application context. Security administrators should also consider implementing web application firewalls and content security policies to add additional layers of protection against similar vulnerabilities. Regular security audits and code reviews should be conducted to identify potential input validation gaps in other modules and custom code implementations. Additionally, user permission management should be reviewed to ensure that only necessary users have access to modules that may contain such vulnerabilities, following the principle of least privilege as outlined in security best practices. The vulnerability highlights the importance of maintaining up-to-date security patches and implementing robust security monitoring procedures to detect and respond to potential exploitation attempts.