CVE-2020-28103 in cscms
Summary
by MITRE • 01/11/2022
cscms v4.1 allows for SQL injection via the "page_del" function.
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Analysis
by VulDB Data Team • 01/13/2022
The vulnerability identified as CVE-2020-28103 affects the cscms v4.1 content management system and represents a critical SQL injection flaw within the "page_del" function. This vulnerability exposes the application to unauthorized database access and potential data compromise through maliciously crafted input parameters that are not properly sanitized or validated before being processed in database queries.
The technical implementation of this vulnerability stems from insufficient input validation and sanitization within the page_del function, which processes delete operations for CMS pages. When users submit delete requests through this function, the application fails to adequately escape or parameterize user-supplied data before incorporating it into SQL query strings. This allows attackers to inject malicious SQL code that can manipulate the database structure, extract sensitive information, or even execute unauthorized commands on the underlying database server.
From an operational perspective, this vulnerability creates significant risk for organizations using cscms v4.1 as it enables attackers to perform unauthorized data manipulation and extraction without proper authentication. The impact extends beyond simple data theft to include potential system compromise, as successful exploitation can lead to complete database access and control. The vulnerability is particularly dangerous because it operates within a core CMS function that handles page deletion operations, making it likely to be triggered during normal administrative activities or through automated scanning tools.
Security professionals should recognize this vulnerability as aligning with CWE-89, which specifically addresses SQL injection flaws in software applications. The attack vector follows standard patterns described in MITRE ATT&CK framework under technique T1190 for exploit public-facing application, where attackers target web applications to gain unauthorized access to backend databases. Organizations should prioritize immediate patching of affected systems and implement proper input validation measures including parameterized queries, proper escaping of user input, and regular security testing to prevent exploitation of similar vulnerabilities in other components of their web applications.
The remediation approach should include immediate application of vendor patches or updates to cscms v4.1, implementation of web application firewalls to detect and block malicious SQL injection attempts, and comprehensive code review of all database interaction functions to identify and address similar input validation weaknesses. Additionally, organizations should establish robust database access controls, implement proper logging and monitoring of database activities, and conduct regular security assessments to ensure that all web applications maintain adequate protection against SQL injection and other common database-related vulnerabilities.