CVE-2007-6140 in Dora Emlak
Summary
by MITRE
Multiple SQL injection vulnerabilities in Dora Emlak 2.0 allow remote attackers to execute arbitrary SQL commands via the (1) id parameter to (a) emlak_detay.asp and (b) haber_detay.asp, the (2) kategori parameter to (c) kategorisirala.asp, and the (3) tip parameter to (d) tipsirala.asp.
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Analysis
by VulDB Data Team • 08/17/2022
The vulnerability identified as CVE-2007-6140 represents a critical SQL injection flaw affecting Dora Emlak 2.0, a real estate management system that was widely deployed in the Turkish market during the late 2000s. This vulnerability classifies under CWE-89 which specifically addresses SQL injection weaknesses in software applications. The flaw manifests in three distinct attack vectors within the application's web interface, creating multiple pathways for malicious actors to exploit the system's database layer. The affected parameters include id, kategori, and tip, each corresponding to different dynamic content loading mechanisms within the application's core functionality.
The technical implementation of this vulnerability stems from the application's failure to properly sanitize user input before incorporating it into SQL query construction. When users interact with the emlak_detay.asp and haber_detay.asp scripts, the id parameter is directly concatenated into database queries without appropriate input validation or parameterization. Similarly, the kategorisirala.asp and tipsirala.asp scripts suffer from identical flaws in their kategori and tip parameter handling respectively. This lack of input sanitization creates a direct pathway for attackers to inject malicious SQL code that executes with the privileges of the database user account associated with the web application. The vulnerability operates at the application layer and can be exploited through simple HTTP requests without requiring authentication.
The operational impact of CVE-2007-6140 is severe and multifaceted, potentially allowing remote attackers to achieve complete database compromise. Attackers could extract sensitive information including user credentials, real estate listings, contact details, and potentially financial data stored within the application's database. The vulnerability enables privilege escalation attacks where malicious actors might gain administrative access to the database, allowing them to modify or delete critical data. Additionally, the compromised system could serve as a foothold for further network infiltration, as database credentials often provide access to other system components. The attack surface extends beyond simple data theft to include potential denial of service conditions and system-wide compromise.
Mitigation strategies for this vulnerability must address both immediate remediation and long-term architectural improvements. The primary fix involves implementing proper input validation and parameterized queries throughout the application codebase, specifically targeting the three identified vulnerable parameters. Organizations should deploy web application firewalls to monitor and filter suspicious SQL injection patterns, while also implementing proper database access controls to limit the privileges of the application's database user account. The remediation process should include thorough code auditing to identify and eliminate all instances of direct SQL query construction from user input, following the principle of least privilege for database connections. Additionally, implementing proper error handling mechanisms can prevent information leakage that might assist attackers in refining their exploitation techniques, aligning with defensive cybersecurity practices recommended by the MITRE ATT&CK framework for application layer attacks.