CVE-2008-5992 in Jetik Emlak Sistem A
Summary
by MITRE
Multiple SQL injection vulnerabilities in Jetik Emlak Sistem A (ESA) 2.0 allow remote attackers to execute arbitrary SQL commands via the KayitNo parameter to (1) diger.php and (2) sayfalar.php.
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Analysis
by VulDB Data Team • 11/04/2024
The vulnerability identified as CVE-2008-5992 represents a critical SQL injection flaw within the Jetik Emlak Sistem A (ESA) 2.0 web application, specifically affecting version 2.0. This vulnerability resides in the application's handling of user input parameters, particularly the KayitNo parameter which is processed through two distinct script files. The affected endpoints diger.php and sayfalar.php demonstrate a fundamental lack of input validation and proper parameter sanitization that creates an exploitable condition for remote attackers. This issue falls under the Common Weakness Enumeration category CWE-89, which specifically addresses SQL injection vulnerabilities where untrusted data is directly incorporated into SQL command construction without adequate escaping or parameterization.
The technical exploitation of this vulnerability occurs when an attacker submits malicious input through the KayitNo parameter, which is then directly incorporated into SQL queries executed by the backend database. Since the application fails to implement proper input validation or parameterized queries, an attacker can craft SQL injection payloads that manipulate the intended database operations. The attack vector is remote and does not require authentication, making it particularly dangerous as it can be exploited from any network location. The vulnerability affects the database layer directly, potentially allowing attackers to execute arbitrary SQL commands with the privileges of the database user account under which the web application operates. This could result in full database compromise including data exfiltration, data modification, or even complete system takeover if the database user has elevated privileges.
The operational impact of this vulnerability extends beyond simple data theft, as it provides attackers with the capability to manipulate the application's underlying data structures and potentially gain deeper access to the system. Attackers could leverage this vulnerability to extract sensitive information such as user credentials, personal identification data, or business-critical information stored within the ESA 2.0 system. The vulnerability also enables attackers to modify or delete data, potentially causing significant operational disruption. Additionally, the presence of SQL injection vulnerabilities often indicates broader code quality issues within the application, suggesting that other areas of the codebase may also be susceptible to similar attacks. This creates a cascading risk where exploitation of one vulnerability could lead to discovery and exploitation of additional weaknesses.
Mitigation strategies for CVE-2008-5992 must address the root cause of the vulnerability through proper input validation and parameterized query implementation. The most effective approach involves implementing strict input validation for all user-supplied parameters, including the KayitNo parameter, and ensuring that all database queries utilize parameterized statements or prepared statements. The application should employ proper escaping mechanisms for any data that must be incorporated directly into SQL commands. Security measures should include input sanitization, output encoding, and the principle of least privilege for database connections. Organizations should also implement web application firewalls and intrusion detection systems to monitor for suspicious SQL injection attempts. The vulnerability aligns with ATT&CK technique T1190, which describes exploitation of remote services through SQL injection attacks, and represents a classic example of insufficient input sanitization that violates security best practices established in various cybersecurity frameworks including the OWASP Top Ten. Regular security audits and code reviews should be conducted to identify and remediate similar vulnerabilities across the entire application stack.