CVE-2019-12349 in ZZCMS
Summary
by MITRE • 06/02/2022
An issue was discovered in zzcms 2019. SQL Injection exists in /admin/dl_sendsms.php via the id parameter.
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Analysis
by VulDB Data Team • 06/04/2022
The vulnerability identified as CVE-2019-12349 represents a critical SQL injection flaw within the zzcms 2019 content management system, specifically affecting the administrative functionality related to SMS messaging. This issue resides in the /admin/dl_sendsms.php script where user input containing the 'id' parameter is improperly validated and directly incorporated into database queries without adequate sanitization or parameterization measures. The flaw allows malicious actors to manipulate database operations through crafted input values that can be interpreted as SQL commands by the underlying database engine.
The technical nature of this vulnerability aligns with CWE-89, which categorizes SQL injection as a widespread and dangerous class of vulnerability that occurs when user-supplied data is improperly escaped or validated before being used in SQL queries. The attack vector specifically targets the administrative interface of zzcms, where the 'id' parameter is processed without proper input validation, creating an exploitable condition that can be leveraged by attackers to execute arbitrary SQL commands against the database backend. This type of vulnerability typically arises from insufficient data sanitization practices and inadequate use of prepared statements or parameterized queries.
The operational impact of this vulnerability is severe and multifaceted, potentially enabling attackers to gain unauthorized access to sensitive data stored within the zzcms database. Successful exploitation could allow threat actors to extract confidential information including user credentials, personal data, and other sensitive business information. Additionally, attackers might be able to modify or delete database records, potentially leading to data corruption or complete system compromise. The administrative nature of the vulnerable script means that successful exploitation could provide attackers with elevated privileges within the system, enabling further lateral movement and persistent access to the affected infrastructure. This vulnerability also falls under ATT&CK technique T1071.004 for application layer protocol usage and T1046 for network service discovery, as attackers would likely use this vulnerability to explore the system's database structure and identify additional attack vectors.
Mitigation strategies for CVE-2019-12349 should prioritize immediate implementation of proper input validation and parameterization of all database queries within the affected application components. Organizations should implement prepared statements or parameterized queries to ensure that user input cannot be interpreted as executable SQL code. Additionally, the application should enforce strict input validation on the 'id' parameter to reject any non-numeric values or suspicious input patterns that could indicate malicious intent. Network segmentation and access controls should be implemented to limit administrative access to only authorized personnel, while regular security audits and code reviews should be conducted to identify and remediate similar vulnerabilities. The affected zzcms version should be updated to the latest release where this vulnerability has been patched, and organizations should consider implementing web application firewalls to detect and block malicious SQL injection attempts. Regular security training for developers on secure coding practices and the importance of input validation should also be implemented to prevent similar vulnerabilities from being introduced in future code developments.