CVE-2018-17414 in zzcms
Summary
by MITRE
zzcms v8.3 has a SQL injection in /user/jobmanage.php via the bigclass parameter.
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Analysis
by VulDB Data Team • 07/29/2023
The vulnerability CVE-2018-17414 represents a critical SQL injection flaw discovered in zzcms version 8.3, specifically within the /user/jobmanage.php script. This vulnerability arises from improper input validation and sanitization of the bigclass parameter, which allows malicious actors to inject arbitrary SQL commands into the database query execution process. The affected application fails to adequately filter or escape user-supplied input before incorporating it into SQL statements, creating a pathway for unauthorized database access and potential data compromise.
This SQL injection vulnerability operates under the Common Weakness Enumeration CWE-89 category, which classifies it as a direct SQL injection weakness where untrusted data flows into SQL commands without proper sanitization. The attack vector specifically targets the bigclass parameter in the jobmanage.php endpoint, making it exploitable through HTTP requests that manipulate this particular input field. Security researchers have identified that the vulnerability enables attackers to execute malicious SQL queries against the underlying database, potentially leading to complete database compromise, data exfiltration, or unauthorized administrative access to the application's backend systems.
The operational impact of this vulnerability extends beyond simple data theft, as it can enable attackers to escalate privileges within the application environment. An attacker who successfully exploits this vulnerability could potentially extract sensitive user information, modify database records, or even gain access to administrative functions through the database layer. The vulnerability affects the integrity and confidentiality of the application's data repository, particularly impacting job management features that rely on the bigclass parameter for filtering and organizing job listings. This type of vulnerability is particularly dangerous in content management systems where database access often translates to broader system compromise.
Mitigation strategies for CVE-2018-17414 should focus on implementing proper input validation and parameterized queries to prevent SQL injection attacks. Organizations should immediately update to the patched version of zzcms or implement proper input sanitization measures that escape or validate all user-supplied data before database processing. The remediation approach should align with industry best practices outlined in the ATT&CK framework under the T1190 technique for exploiting vulnerabilities in web applications, emphasizing the importance of secure coding practices and input validation. Additionally, network segmentation and database access controls should be implemented to limit the potential damage from successful exploitation attempts, while regular security audits and penetration testing should be conducted to identify similar vulnerabilities in other application components.