CVE-2018-20479 in S-Cms
Summary
by MITRE
An issue was discovered in S-CMS 1.0. It allows SQL Injection via the wap_index.php?type=newsinfo S_id parameter.
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Analysis
by VulDB Data Team • 04/24/2020
The vulnerability identified as CVE-2018-20479 represents a critical SQL injection flaw within S-CMS version 1.0, specifically affecting the wap_index.php script when processing the S_id parameter in the newsinfo type context. This vulnerability falls under the Common Weakness Enumeration category CWE-89, which defines SQL injection as the insertion of malicious SQL code into database queries through untrusted input. The flaw exists in the web application's input validation mechanisms, where user-supplied data is directly incorporated into SQL queries without proper sanitization or parameterization.
The technical exploitation of this vulnerability occurs when an attacker manipulates the S_id parameter in the wap_index.php?type=newsinfo URL structure to inject malicious SQL commands. The vulnerable application fails to properly escape or validate the input before incorporating it into database queries, allowing attackers to manipulate the underlying database structure. This can result in unauthorized data access, data modification, or even complete database compromise depending on the attacker's privileges and the database configuration.
From an operational perspective, this vulnerability poses significant risks to organizations using S-CMS 1.0, as it provides attackers with direct access to the application's database backend. The impact extends beyond simple data theft to include potential system compromise, data integrity violations, and unauthorized administrative access. Attackers could leverage this vulnerability to extract sensitive information such as user credentials, personal data, or business-critical information stored within the CMS database. The vulnerability is particularly concerning as it affects a mobile-optimized version of the CMS, potentially exposing mobile users and applications to additional attack vectors.
The exploitation of this vulnerability aligns with tactics documented in the MITRE ATT&CK framework under the technique T1071.004 for Application Layer Protocol: DNS and T1190 for Proxying, as attackers may use this vulnerability to establish persistent access to the database infrastructure. Organizations should implement immediate mitigations including input validation, parameterized queries, and web application firewall rules to prevent exploitation. The recommended remediation approach involves proper input sanitization, implementation of prepared statements, and regular security updates to address similar vulnerabilities in the CMS platform. Additionally, network segmentation and access controls should be implemented to limit potential damage from successful exploitation attempts.