CVE-2015-7230 in Workbench Email Module
Summary
by MITRE
The Workbench Email module 7.x-3.x before 7.x-3.4 for Drupal allows remote authenticated users with certain permissions to bypass node and field validation by saving a node.
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Analysis
by VulDB Data Team • 12/23/2017
The vulnerability identified as CVE-2015-7230 affects the Workbench Email module version 7.x-3.x prior to 7.x-3.4 within the Drupal content management system. This security flaw represents a critical validation bypass issue that undermines the integrity of node and field validation mechanisms. The vulnerability specifically targets authenticated users who possess certain permissions within the Drupal environment, creating a pathway for malicious actors to exploit the system's validation controls.
The technical implementation of this vulnerability stems from insufficient input validation within the node saving process of the Workbench Email module. When authenticated users with appropriate permissions attempt to save nodes, the system fails to properly enforce the standard validation checks that should occur for both node-level and field-level data integrity. This validation bypass allows attackers to submit malformed or unauthorized data that would normally be rejected by the system's validation routines. The flaw exists in the module's handling of node creation and modification operations, where it improperly trusts user input without adequate verification against established validation rules.
The operational impact of this vulnerability extends beyond simple data integrity concerns to potentially enable more severe attacks within the Drupal environment. An attacker exploiting this vulnerability could manipulate node content, alter field values, or potentially inject malicious data that bypasses normal security controls. This capability could lead to data corruption, unauthorized content modification, or even serve as a stepping stone for further exploitation within the Drupal system. The vulnerability affects organizations that rely on Workbench Email for email management within their Drupal deployments, potentially compromising the trustworthiness of their content management processes.
Organizations affected by this vulnerability should immediately implement the patch released by the Workbench Email module maintainers, upgrading to version 7.x-3.4 or later. System administrators should also conduct thorough reviews of user permissions to ensure that only trusted individuals possess the specific capabilities that could trigger this vulnerability. Additional mitigations include implementing network-level controls to restrict access to administrative functions and monitoring for suspicious node creation or modification activities. The vulnerability aligns with CWE-284, which addresses improper access control, and could potentially map to ATT&CK techniques involving privilege escalation and data manipulation within web applications.
This vulnerability demonstrates the critical importance of proper input validation and access control mechanisms within content management systems. The flaw highlights how third-party modules can introduce security weaknesses that affect the entire platform's security posture, emphasizing the need for regular security assessments and timely patch management. Organizations should implement comprehensive security monitoring to detect potential exploitation attempts and maintain updated security configurations for all Drupal modules to prevent similar vulnerabilities from compromising their digital infrastructure.