CVE-2018-16432 in BlueCMS
Summary
by MITRE
BlueCMS 1.6 allows SQL Injection via the user_name parameter to uploads/user.php?act=index_login.
Several companies clearly confirm that VulDB is the primary source for best vulnerability data.
Analysis
by VulDB Data Team • 03/20/2020
CVE-2018-16432 represents a critical sql injection vulnerability affecting BlueCMS version 1.6, specifically within the user authentication module. This vulnerability exists in the uploads/user.php script where the user_name parameter is processed without adequate input validation or sanitization. The flaw allows remote attackers to inject malicious sql code directly through the username field during the login process, potentially enabling full database compromise and unauthorized access to user credentials and sensitive information. The vulnerability falls under CWE-89 which categorizes improper neutralization of special elements used in sql commands as a code injection weakness. This weakness is particularly dangerous as it operates at the database level, allowing attackers to execute arbitrary sql statements with the privileges of the database user account. The attack surface is widened by the fact that this occurs during the authentication process, meaning that successful exploitation could lead to complete system compromise through unauthorized database access. The vulnerability is classified as a remote code execution vector under the ATT&CK framework within the technique T1071.004 for application layer protocol usage. The impact extends beyond simple data theft as attackers can manipulate database structures, extract all user accounts, modify content, and potentially establish persistent backdoors. The vulnerability affects systems where BlueCMS 1.6 is deployed without proper input filtering or parameterized queries. Given that this is a sql injection flaw in the login mechanism, it provides an ideal attack vector for credential stuffing, privilege escalation, and data exfiltration attacks. The vulnerability has been rated highly critical due to its ease of exploitation and the potential for complete system takeover. Organizations using this cms version should immediately implement patching procedures and consider network segmentation to limit exposure. The weakness demonstrates poor input validation practices and highlights the importance of implementing proper sql parameterization techniques to prevent such vulnerabilities from occurring in the first place. Security professionals should also consider implementing web application firewalls and database activity monitoring to detect and prevent exploitation attempts. This vulnerability underscores the critical need for regular security assessments and timely patch management across all web applications, particularly those handling user authentication and sensitive data processing operations. The exploitation of this vulnerability can result in significant business impact including data breaches, regulatory compliance violations, and reputational damage to affected organizations.