CVE-2021-44347 in TuziCMS
Summary
by MITRE • 12/03/2021
SQL Injection vulnerability exists in TuziCMS v2.0.6 in App\Manage\Controller\GuestbookController.class.php.
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Analysis
by VulDB Data Team • 12/09/2021
The SQL injection vulnerability identified as CVE-2021-44347 affects TuziCMS version 2.0.6 and specifically targets the GuestbookController component within the application's management interface. This flaw resides in the App\Manage\Controller\GuestbookController.class.php file, making it accessible through the web application's administrative panel where users can manage guestbook entries and related functionality. The vulnerability represents a critical security weakness that allows unauthorized actors to manipulate the database through maliciously crafted input parameters, potentially compromising the entire content management system and underlying data infrastructure.
The technical implementation of this vulnerability stems from improper input validation and sanitization within the guestbook management controller. When administrators or authenticated users interact with the guestbook functionality, the application fails to properly escape or parameterize user-supplied data before incorporating it into SQL queries. This lack of proper input handling creates an environment where malicious SQL commands can be injected and executed directly against the database backend, bypassing normal authentication and authorization mechanisms. The flaw specifically manifests when the application processes guestbook-related data without adequate sanitization, allowing attackers to manipulate query structures through carefully crafted payloads that exploit the absence of proper parameter binding or input filtering.
The operational impact of this vulnerability extends beyond simple data theft or modification, as it can enable complete database compromise and potential system takeover. An attacker with access to the administrative interface could execute arbitrary SQL commands to extract sensitive information including user credentials, personal data, and system configuration details. The vulnerability also allows for data manipulation, enabling unauthorized deletion, modification, or addition of guestbook entries that could be used to spread malicious content or disrupt normal operations. Furthermore, successful exploitation could lead to privilege escalation within the database, potentially allowing attackers to gain elevated access rights and access other parts of the system that were not directly exposed through the guestbook functionality.
Security professionals should recognize this vulnerability as a classic SQL injection flaw categorized under CWE-89, which represents the most common and dangerous form of database injection attacks in web applications. The attack pattern aligns with ATT&CK technique T1071.004 for application layer protocol manipulation, where adversaries exploit web application vulnerabilities to execute malicious code. Organizations using TuziCMS v2.0.6 should immediately implement mitigations including input validation, parameterized queries, and proper output encoding to prevent malicious SQL commands from being executed. Additionally, network segmentation, web application firewalls, and regular security audits should be employed to detect and prevent exploitation attempts. The vulnerability demonstrates the critical importance of secure coding practices and proper input sanitization in preventing database compromise, particularly in content management systems that handle sensitive user data through administrative interfaces.