CVE-2008-6776 in EZ Hot
Summary
by MITRE
SQL injection vulnerability in viewcomments.php in Scripts For Sites (SFS) EZ Hot or Not allows remote attackers to execute arbitrary SQL commands via the phid parameter.
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Analysis
by VulDB Data Team • 11/09/2024
The vulnerability identified as CVE-2008-6776 represents a critical SQL injection flaw within the Scripts For Sites EZ Hot or Not application, specifically affecting the viewcomments.php script. This vulnerability resides in the handling of the phid parameter, which is processed without adequate input validation or sanitization measures. The flaw enables remote attackers to manipulate the database query structure by injecting malicious SQL commands through the phid parameter, potentially leading to unauthorized data access, modification, or deletion. The vulnerability is classified under CWE-89 as SQL injection, which is a well-documented weakness in web applications where user input is directly incorporated into SQL queries without proper escaping or parameterization. This particular instance demonstrates how a single unvalidated parameter can compromise the entire database backend of the application.
The technical exploitation of this vulnerability occurs when an attacker submits a malformed phid parameter value that contains SQL code intended to manipulate the database query execution flow. The viewcomments.php script fails to implement proper input filtering or parameterized queries, allowing the injected SQL commands to be executed with the privileges of the database user account used by the web application. This can result in unauthorized access to sensitive information, including user credentials, personal data, and other confidential database records. The attack vector is particularly dangerous because it requires no authentication to initiate and can be executed remotely, making it a significant threat to web application security. According to ATT&CK framework, this vulnerability maps to T1190 - Exploit Public-Facing Application, where adversaries leverage weaknesses in publicly accessible web applications to gain unauthorized access to backend systems.
The operational impact of this vulnerability extends beyond simple data theft, as successful exploitation can lead to complete database compromise and potential system takeover. Attackers may use this vulnerability to escalate privileges, create backdoors, or establish persistent access to the compromised system. The vulnerability affects the integrity and confidentiality of the entire application, potentially exposing sensitive user data and undermining the trustworthiness of the web application. Organizations running this version of the EZ Hot or Not application face significant risk of data breaches, regulatory compliance violations, and potential legal consequences. The vulnerability also demonstrates the critical importance of input validation and proper database query construction practices that align with industry standards and security frameworks. The lack of proper parameterization and input sanitization in this implementation violates fundamental security principles and represents a common pattern of insecure coding practices that attackers can readily exploit.
Mitigation strategies for this vulnerability involve immediate implementation of input validation and parameterized queries to prevent SQL injection attacks. The recommended approach includes updating the viewcomments.php script to utilize prepared statements or parameterized queries for all database interactions, ensuring that user input is properly escaped or validated before being incorporated into SQL commands. Organizations should also implement proper access controls and database privilege management, limiting the database user account's permissions to only those required for the application's functionality. Additional security measures include input length validation, regular security code reviews, and deployment of web application firewalls to detect and block malicious SQL injection attempts. The vulnerability serves as a reminder of the importance of maintaining up-to-date software versions and implementing comprehensive security testing practices to identify and remediate similar weaknesses before they can be exploited by malicious actors.