CVE-2008-3845 in Crafty Syntax Live Help
Summary
by MITRE
Multiple SQL injection vulnerabilities in Crafty Syntax Live Help (CSLH) 2.14.6 and earlier allow remote attackers to execute arbitrary SQL commands via the department parameter to (1) is_xmlhttp.php and (2) is_flush.php.
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Analysis
by VulDB Data Team • 11/03/2024
The vulnerability identified as CVE-2008-3845 represents a critical security flaw in Crafty Syntax Live Help version 2.14.6 and earlier systems, where multiple SQL injection vulnerabilities exist within the application's input handling mechanisms. This vulnerability specifically targets the department parameter in two key files of the CSLH system: is_xmlhttp.php and is_flush.php, which are integral components responsible for processing asynchronous requests and cache flushing operations respectively. The flaw allows remote attackers to manipulate the application's database interactions by injecting malicious SQL commands through these parameters, potentially leading to unauthorized access to sensitive data and system compromise.
The technical implementation of this vulnerability stems from inadequate input validation and sanitization within the CSLH application's codebase. When the department parameter is processed in either is_xmlhttp.php or is_flush.php, the application fails to properly escape or validate user-supplied input before incorporating it into SQL query strings. This lack of proper input sanitization creates an environment where malicious actors can inject specially crafted SQL payloads that bypass authentication mechanisms and execute arbitrary database commands. The vulnerability operates at the application layer and does not require any special privileges or local access, making it particularly dangerous as it can be exploited remotely over the network.
The operational impact of this vulnerability extends beyond simple data theft, encompassing complete system compromise and potential data manipulation capabilities. Attackers exploiting this vulnerability can perform unauthorized database queries to extract sensitive information including user credentials, personal data, and system configurations. The SQL injection attacks could also enable attackers to modify or delete database records, potentially leading to service disruption and data integrity violations. Additionally, successful exploitation may provide attackers with the ability to escalate privileges within the database system, allowing for further lateral movement and access to other system components. This vulnerability directly aligns with CWE-89, which categorizes SQL injection as a fundamental weakness in data validation and sanitization processes, and represents a clear violation of the principle of least privilege in database access control.
The mitigation strategies for this vulnerability require immediate remediation through proper input validation and parameterized query implementation. System administrators should upgrade to the latest version of Crafty Syntax Live Help where the vulnerability has been patched and properly addressed. The recommended approach involves implementing strict input validation routines that filter and sanitize all user-supplied parameters before they are processed by the database layer. Additionally, developers should transition from dynamic SQL query construction to parameterized queries or prepared statements, which effectively prevent SQL injection by separating SQL commands from data. Network-level protections such as web application firewalls and intrusion detection systems can provide additional defense-in-depth measures, though these should not replace proper code-level fixes. The vulnerability demonstrates the critical importance of following secure coding practices and adhering to industry standards such as those outlined in the OWASP Top Ten and NIST guidelines for preventing injection vulnerabilities. Organizations should also implement regular security assessments and code reviews to identify similar weaknesses in their application portfolios, ensuring that the principles of secure software development are maintained throughout the entire development lifecycle.