CVE-2007-4846 in Webace-Linkscript
Summary
by MITRE
SQL injection vulnerability in start.php in Webace-Linkscript (wls) 1.3 Special Edition (SE) allows remote attackers to execute arbitrary SQL commands via the id parameter in a rubrik go action.
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Analysis
by VulDB Data Team • 10/06/2024
The vulnerability identified as CVE-2007-4846 represents a critical SQL injection flaw within the Webace-Linkscript (wls) 1.3 Special Edition web application. This vulnerability specifically targets the start.php script and occurs when processing the id parameter within a rubrik go action. The flaw enables remote attackers to inject malicious SQL commands into the application's database query execution flow, potentially compromising the entire database infrastructure. The vulnerability resides in the application's failure to properly sanitize or validate user input before incorporating it into SQL queries, creating an exploitable entry point for malicious actors.
The technical implementation of this vulnerability follows the classic SQL injection pattern where user-controllable input directly influences database query construction without adequate input validation or parameterization. When the rubrik go action processes the id parameter, the application fails to implement proper input sanitization measures, allowing attackers to manipulate the SQL query structure through malicious input. This flaw falls under CWE-89 which specifically addresses SQL injection vulnerabilities, where untrusted data is incorporated into SQL commands without proper escaping or parameterization. The vulnerability demonstrates a lack of input validation and output encoding practices that are fundamental to preventing injection attacks.
The operational impact of this vulnerability extends beyond simple data theft, as it provides attackers with the capability to execute arbitrary SQL commands on the underlying database server. This access level allows for complete database compromise including data extraction, modification, deletion, and potentially the execution of administrative commands on the database system. Attackers could leverage this vulnerability to escalate privileges, gain persistence within the application environment, or even move laterally within the network infrastructure. The remote nature of the attack means that exploitation can occur from any location without requiring physical access to the system, making it particularly dangerous for web applications with public exposure. According to ATT&CK framework, this vulnerability maps to T1071.004 for Application Layer Protocol: DNS and T1190 for Exploit Public-Facing Application, highlighting the attack surface and methodology.
Mitigation strategies for CVE-2007-4846 should focus on implementing proper input validation and parameterized queries to prevent user input from being interpreted as SQL commands. The most effective approach involves replacing direct string concatenation with prepared statements or parameterized queries that separate SQL command structure from user data. Additionally, implementing proper input sanitization routines and output encoding can provide defense-in-depth measures. Organizations should also consider implementing web application firewalls to detect and block suspicious SQL injection patterns, while maintaining regular security assessments and code reviews to identify similar vulnerabilities. The remediation process requires immediate patching of the affected application version and implementation of secure coding practices that align with OWASP Top Ten guidelines for preventing injection vulnerabilities. Database access controls should be reviewed to ensure that application accounts have minimal required privileges, reducing the potential impact of successful exploitation.