CVE-2015-4346 in SMS Framework Module
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in the SMS Framework module 6.x-1.x before 6.x-1.1 for Drupal, when the "Send to phone" submodule is enabled, allows remote attackers to inject arbitrary web script or HTML via unspecified vectors related to message previews.
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Analysis
by VulDB Data Team • 04/06/2019
The CVE-2015-4346 vulnerability represents a cross-site scripting flaw within the SMS Framework module for Drupal version 6.x-1.x prior to 6.x-1.1. This vulnerability specifically affects installations where the "Send to phone" submodule is enabled, creating a potential attack vector that could compromise user sessions and data integrity. The vulnerability stems from insufficient input validation and output encoding mechanisms within the message preview functionality, allowing malicious actors to inject malicious scripts that execute in the context of other users' browsers.
The technical implementation of this vulnerability resides in the message preview feature of the SMS Framework module, which processes user input without proper sanitization before rendering content in web browsers. When users access the message preview functionality, the module fails to adequately escape or filter special characters and script tags from input fields. This weakness enables attackers to craft malicious payloads that, when processed through the preview mechanism, execute in the browser context of legitimate users who view the affected content. The vulnerability operates under CWE-79 which categorizes improper neutralization of input during web page generation, specifically targeting cross-site scripting scenarios where user-controllable data is improperly handled.
From an operational perspective, this vulnerability presents significant risks to Drupal installations using the SMS Framework module. Attackers could exploit this weakness to execute arbitrary JavaScript code in users' browsers, potentially leading to session hijacking, credential theft, or redirection to malicious sites. The impact extends beyond simple script execution as it could enable attackers to perform actions on behalf of authenticated users, potentially compromising sensitive information or system integrity. The vulnerability affects not only individual users but also the broader organization by potentially exposing confidential communications or data processing capabilities within the SMS messaging framework.
The attack surface for this vulnerability is particularly concerning as it leverages the legitimate functionality of the "Send to phone" submodule, making it difficult for administrators to detect malicious activity. The unspecified vectors mentioned in the description suggest that multiple input points within the message preview functionality could be exploited, increasing the attack surface and making comprehensive patching more challenging. Organizations using Drupal 6.x-1.x with the SMS Framework module should prioritize immediate remediation through the available security update to version 6.x-1.1, which addresses the input validation and output encoding deficiencies. Additionally, implementing proper input sanitization, output encoding, and content security policies can help mitigate the risk while awaiting the security patch, aligning with ATT&CK technique T1059.007 for script injection attacks and the broader defensive strategies recommended for preventing XSS vulnerabilities in web applications.