CVE-2006-4356 in Easylinks Module
Summary
by MITRE
SQL injection vulnerability in Drupal Easylinks Module (easylinks.module) 4.7 before 1.5.2.1 2006/08/19 12:02:27 allows remote attackers to execute arbitrary SQL commands via unspecified vectors.
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Analysis
by VulDB Data Team • 09/25/2017
The CVE-2006-4356 vulnerability represents a critical sql injection flaw within the Drupal Easylinks Module version 4.7 prior to 1.5.2.1, which was disclosed in August 2006. This vulnerability specifically targets the easylinks.module component of the Drupal content management system, creating a significant security risk for websites utilizing this particular module version. The flaw allows remote attackers to execute arbitrary sql commands without proper authentication or authorization, fundamentally compromising the database integrity and potentially leading to complete system compromise. The vulnerability's classification as a sql injection weakness aligns with common weakness enumeration CWE-89, which specifically addresses improper neutralization of special elements used in sql commands.
The technical exploitation of this vulnerability occurs through unspecified attack vectors within the easylinks.module implementation, where user input is not properly sanitized or escaped before being incorporated into sql queries. This allows malicious actors to inject malicious sql code that gets executed by the database engine, potentially enabling data extraction, modification, or deletion operations. The vulnerability's impact extends beyond simple data theft as it can provide attackers with elevated privileges and persistent access to the underlying database infrastructure. The specific nature of the injection point within the module suggests that the application fails to implement proper input validation and parameterized query execution mechanisms.
From an operational standpoint, this vulnerability poses severe risks to organizations relying on Drupal platforms with the affected Easylinks module. The remote execution capability means attackers can exploit this flaw from anywhere on the internet without requiring local system access or credentials. Successful exploitation can result in complete database compromise, leading to data breaches, service disruption, and potential regulatory compliance violations. The vulnerability affects the confidentiality, integrity, and availability of the affected systems, making it particularly dangerous in enterprise environments where data protection and business continuity are paramount. Organizations may face significant financial and reputational damage from such compromises, especially when sensitive user data or business information is stored in the affected databases.
Mitigation strategies for CVE-2006-4356 primarily focus on immediate remediation through module updates to version 1.5.2.1 or later, which would contain the necessary security patches and code modifications to prevent sql injection attacks. System administrators should also implement additional defensive measures including database query monitoring, input validation controls, and web application firewalls to detect and prevent exploitation attempts. The vulnerability's age and the availability of patches make this a straightforward remediation case, though organizations must ensure comprehensive testing of updated modules to prevent regression issues. Security monitoring should include detection of sql injection patterns and unauthorized database access attempts, aligning with attack technique T1071.004 from the attack tactic T1071 for application layer protocol usage. Organizations should also consider implementing principle of least privilege for database accounts and regularly reviewing access controls to minimize potential impact from successful exploitation attempts.