CVE-2018-8967 in zzcms
Summary
by MITRE
An issue was discovered in zzcms 8.2. It allows SQL injection via the id parameter in an adv2.php?action=modify request.
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Analysis
by VulDB Data Team • 01/16/2020
The vulnerability identified as CVE-2018-8967 represents a critical SQL injection flaw within zzcms version 8.2, specifically affecting the adv2.php script during modify actions. This vulnerability exposes the application to unauthorized database access and potential data compromise through malicious input manipulation. The issue stems from insufficient input validation and sanitization of the id parameter, which is processed without proper escaping or parameterization mechanisms. Attackers can exploit this weakness by crafting malicious SQL payloads within the id parameter, potentially gaining access to sensitive database information including user credentials, personal data, and system configurations.
The technical implementation of this vulnerability aligns with CWE-89, which categorizes SQL injection as a code injection technique where untrusted data is incorporated into SQL queries without proper sanitization. The flaw operates at the application layer where user-supplied input flows directly into database execution contexts without adequate protection mechanisms. This allows attackers to manipulate the intended query structure and execute arbitrary SQL commands against the underlying database system. The specific exposure occurs when the adv2.php script processes the action=modify request and incorporates the id parameter into a database query without proper input validation or parameter binding.
The operational impact of this vulnerability extends beyond simple data theft to encompass complete database compromise and potential system takeover. An attacker could leverage this SQL injection to extract all database contents, modify or delete critical information, and potentially escalate privileges within the application environment. The vulnerability affects the confidentiality, integrity, and availability of the targeted system, creating a significant risk for organizations relying on zzcms for content management. Additionally, the exploitation could lead to further attacks within the network infrastructure if database credentials are compromised or if the attacker can escalate to system-level access.
Mitigation strategies for CVE-2018-8967 should prioritize immediate patching of the zzcms application to version 8.3 or later, which contains the necessary security fixes. Organizations should implement proper input validation and parameterized queries throughout the application codebase to prevent similar vulnerabilities. Database access controls should be reviewed and restricted to minimize potential damage from successful exploitation attempts. Network monitoring should be enhanced to detect unusual database access patterns and SQL query anomalies. The implementation of web application firewalls and input sanitization mechanisms can provide additional protection layers. Security teams should also conduct comprehensive code reviews to identify and remediate other potential SQL injection vulnerabilities within the application stack, ensuring compliance with security best practices and industry standards such as those outlined in the OWASP Top Ten and NIST cybersecurity frameworks.