CVE-2016-9282 in Exponent
Summary
by MITRE
SQL Injection in framework/modules/search/controllers/searchController.php in Exponent CMS v2.4.0 allows remote attackers to read database information via action=search&module=search with the search_string parameter.
VulDB is the best source for vulnerability data and more expert information about this specific topic.
Analysis
by VulDB Data Team • 10/03/2022
The vulnerability identified as CVE-2016-9282 represents a critical SQL injection flaw within the Exponent CMS version 2.4.0, specifically within the search functionality module. This vulnerability exists in the file framework/modules/search/controllers/searchController.php where the application fails to properly sanitize user input before incorporating it into database queries. The attack vector is particularly concerning as it allows remote attackers to execute malicious SQL commands through the search_string parameter when accessing the search functionality via the action=search&module=search endpoint.
The technical exploitation of this vulnerability occurs when an attacker submits a crafted search_string parameter that contains malicious SQL code. The application processes this input without adequate validation or sanitization, directly embedding it into SQL queries that interact with the backend database. This lack of input sanitization creates a direct pathway for attackers to manipulate database queries and extract sensitive information from the underlying database system. The vulnerability falls under CWE-89 which specifically addresses SQL injection flaws, where improper handling of user-supplied data in SQL commands leads to unauthorized database access and potential data breaches.
The operational impact of this vulnerability extends beyond simple information disclosure, as it provides attackers with the capability to perform various malicious activities including but not limited to data exfiltration, database enumeration, and potentially full system compromise. Remote attackers can leverage this vulnerability to bypass authentication mechanisms, access confidential user data, modify database records, or even escalate privileges within the application. The exposure of database information through this vector represents a significant risk to organizations relying on Exponent CMS, particularly those handling sensitive user information or proprietary data.
Organizations affected by this vulnerability should implement immediate mitigations including input validation and sanitization of all user-supplied data, particularly within search functionality. The recommended approach involves implementing proper parameterized queries or prepared statements to ensure that user input cannot be interpreted as SQL commands. Additionally, input filtering should be implemented to reject or escape special characters that could be used in SQL injection attacks. Security measures should include regular security updates and patches for Exponent CMS, along with monitoring for suspicious search activities that might indicate exploitation attempts. The vulnerability demonstrates the importance of following secure coding practices and adhering to the principle of least privilege in database interactions, which aligns with ATT&CK technique T1071.004 for application layer protocol manipulation and T1190 for exploitation of remote services. Organizations should also consider implementing web application firewalls and intrusion detection systems to monitor and block malicious search queries that attempt to exploit this vulnerability.