CVE-2006-1543 in VNews
Summary
by MITRE
Multiple SQL injection vulnerabilities in vscripts (aka Kuba Kunkiewicz) VNews 1.2 allow remote attackers to execute arbitrary SQL commands via the (1) loginvar parameter in (a) admin/admin.php, and the (2) news and (3) nom parameters in (b) news.php.
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Analysis
by VulDB Data Team • 07/29/2022
The vulnerability identified as CVE-2006-1543 represents a critical SQL injection flaw within the vscripts VNews 1.2 content management system developed by Kuba Kunkiewicz. This vulnerability exists in the administrative interface and news display components of the application, creating multiple attack vectors that enable remote adversaries to execute arbitrary SQL commands on the underlying database server. The flaw stems from insufficient input validation and sanitization mechanisms within the application's parameter handling processes, specifically affecting parameters that are directly incorporated into SQL query construction without proper escaping or parameterization.
The technical exploitation of this vulnerability occurs through three distinct parameter injection points that collectively represent a comprehensive attack surface for SQL injection attacks. The first vector involves the loginvar parameter within the admin/admin.php file, which allows attackers to manipulate authentication mechanisms by injecting malicious SQL code that can bypass login validation or escalate privileges. The second and third vectors target the news and nom parameters respectively in the news.php file, enabling attackers to manipulate database queries used for retrieving and displaying news articles. These parameters are processed without adequate sanitization, allowing malicious input to be interpreted as part of the SQL command structure rather than as literal data values.
The operational impact of this vulnerability extends far beyond simple data theft, as it provides attackers with complete control over the database backend serving the VNews application. Successful exploitation could result in unauthorized access to all stored data including user credentials, news content, and potentially sensitive system information. Attackers could also modify or delete database records, create new administrative accounts, and potentially escalate their privileges to gain full system control. The remote nature of the attack means that threat actors do not require physical access to the system or network, making this vulnerability particularly dangerous for publicly accessible web applications. This type of vulnerability aligns with CWE-89 which specifically addresses SQL injection flaws and represents a fundamental breakdown in input validation security controls.
From a threat modeling perspective, this vulnerability demonstrates the classic attack pattern described in the MITRE ATT&CK framework under the T1190 technique for exploitation of remote services. The attack surface encompasses both authentication bypass capabilities and data manipulation functions, representing a complete compromise of the application's integrity and confidentiality. The vulnerability's persistence across multiple parameter points suggests a systemic lack of secure coding practices within the application's development lifecycle, particularly in the handling of user-supplied input. Organizations running affected versions of VNews 1.2 face significant risk of data breaches, service disruption, and potential regulatory compliance violations due to the exposure of sensitive information through these unpatched SQL injection vulnerabilities.
The remediation approach for this vulnerability requires immediate implementation of proper input validation and parameterized query construction throughout the affected application components. All user-supplied parameters must be sanitized using established security libraries or built-in parameterization features of the database interface. The fix should include comprehensive input filtering that removes or escapes potentially dangerous characters and sequences that could be interpreted as SQL operators. Additionally, implementing proper access controls and least privilege principles for database connections can mitigate the potential impact even if other security measures fail. Regular security audits and code reviews should be conducted to identify similar vulnerabilities in other application components, as this vulnerability represents a pattern of insecure coding practices that may exist elsewhere within the application codebase.