CVE-2017-9759 in Zenbership
Summary
by MITRE
SQL Injection exists in admin/index.php in Zenbership 1.0.8 via the filters array parameter, exploitable by a privileged account.
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Analysis
by VulDB Data Team • 12/29/2020
The vulnerability CVE-2017-9759 represents a critical sql injection flaw in Zenbership version 1.0.8 that specifically targets the admin/index.php script. This vulnerability resides within the filters array parameter handling mechanism, creating a pathway for malicious exploitation that requires only a privileged account to execute successfully. The attack vector leverages the improper sanitization of user-supplied input data, allowing an authenticated attacker with administrative privileges to manipulate database queries through crafted input parameters.
The technical implementation of this vulnerability stems from inadequate input validation and parameter sanitization within the application's administrative interface. When the filters array parameter is processed in the admin/index.php file, the system fails to properly escape or validate the input before incorporating it into sql query constructions. This design flaw enables an attacker to inject malicious sql code that can be executed within the context of the database connection. The vulnerability is classified under CWE-89 which specifically addresses sql injection weaknesses in software applications, making it a well-documented and severe security concern. The attack pattern aligns with ATT&CK technique T1071.004 which covers application layer protocol manipulation, particularly focusing on sql injection attacks.
The operational impact of this vulnerability is significant as it provides authenticated attackers with the ability to extract sensitive data from the underlying database, potentially including user credentials, personal information, and system configuration details. An attacker could manipulate database contents, create new administrative accounts, or even escalate privileges within the application. The requirement for only a privileged account to exploit this vulnerability means that the attack surface is expanded beyond typical unauthenticated threats, as the attacker already possesses legitimate administrative access that can be leveraged for more destructive purposes. This makes the vulnerability particularly dangerous in environments where administrative accounts are compromised or where attackers gain access through other means.
Mitigation strategies for CVE-2017-9759 should focus on implementing proper input validation and parameter sanitization techniques throughout the application codebase. The recommended approach involves utilizing prepared statements or parameterized queries to ensure that user input cannot alter the intended sql query structure. Additionally, implementing proper access controls and input sanitization within the filters array parameter processing is essential. Organizations should also consider implementing web application firewalls to detect and block suspicious sql injection patterns. The vulnerability highlights the importance of following secure coding practices and conducting regular security assessments to identify similar flaws in application logic. Patch management procedures should be prioritized to ensure that Zenbership version 1.0.8 is updated to a secure release that addresses this specific sql injection vulnerability. Regular security monitoring and logging of administrative activities can help detect potential exploitation attempts and provide forensic evidence for incident response activities.