CVE-2020-22818 in MKCMS
Summary
by MITRE • 11/03/2022
MKCMS V6.2 has SQL injection via /ucenter/reg.php name parameter.
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Analysis
by VulDB Data Team • 11/04/2022
The vulnerability identified as CVE-2020-22818 affects MKCMS version 6.2 and represents a critical SQL injection flaw that resides within the user registration component of the content management system. This vulnerability specifically targets the name parameter in the /ucenter/reg.php endpoint, creating a pathway for malicious actors to execute unauthorized database operations. The flaw stems from inadequate input validation and sanitization practices within the application's user registration logic, allowing attackers to inject malicious SQL commands that can be executed against the underlying database system. Such vulnerabilities are particularly dangerous as they can be exploited to gain unauthorized access to sensitive user data, modify database contents, or even escalate privileges within the application environment.
The technical exploitation of this SQL injection vulnerability follows standard attack patterns where an attacker crafts malicious input containing SQL syntax within the name parameter during user registration. When the application processes this input without proper sanitization, the injected SQL commands are executed by the database server, potentially allowing for data extraction, modification, or deletion operations. This type of vulnerability falls under CWE-89 which specifically addresses SQL injection flaws in software applications. The attack vector demonstrates a classic lack of proper input validation and parameterized query implementation, which are fundamental security measures recommended by industry standards and best practices.
The operational impact of CVE-2020-22818 extends beyond simple data theft, as successful exploitation can lead to complete database compromise and potential system infiltration. Attackers may leverage this vulnerability to extract user credentials, personal information, and other sensitive data stored within the MKCMS database. The vulnerability also poses risks to application availability and integrity, as malicious actors could potentially delete or corrupt database records, leading to service disruption. From an attacker perspective, this vulnerability aligns with ATT&CK technique T1071.004 which covers application layer protocol manipulation, specifically targeting web application interfaces for data exfiltration and system compromise. The impact is particularly severe for organizations relying on MKCMS for content management, as user registration data often contains personal identifiers and potentially sensitive information.
Mitigation strategies for CVE-2020-22818 should prioritize immediate implementation of proper input validation and sanitization measures within the application code. The most effective remediation involves implementing parameterized queries or prepared statements for all database interactions, ensuring that user input is properly escaped or validated before processing. Organizations should also implement proper access controls and database permissions to limit the potential damage from successful exploitation attempts. Regular security testing including automated vulnerability scanning and manual penetration testing should be conducted to identify similar flaws within the application. Additionally, the affected MKCMS version should be updated to a patched release that addresses this specific vulnerability, as vendors typically provide security patches to resolve such issues. Network-level protections such as web application firewalls can provide additional defense-in-depth measures, though they should not be considered a substitute for proper code-level fixes. The vulnerability highlights the importance of following secure coding practices and adhering to security frameworks that emphasize input validation and proper database interaction patterns to prevent similar issues from occurring in the future.