CVE-2008-4754 in Ez Forum
Summary
by MITRE
SQL injection vulnerability in forum.php in Scripts for Sites (SFS) Ez Forum allows remote attackers to execute arbitrary SQL commands via the forum parameter.
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Analysis
by VulDB Data Team • 11/09/2024
The CVE-2008-4754 vulnerability represents a critical sql injection flaw within the Scripts for Sites Ez Forum software, specifically targeting the forum.php script. This vulnerability resides in the handling of user input through the forum parameter, creating an exploitable condition that enables remote attackers to manipulate database queries. The flaw originates from insufficient input validation and sanitization mechanisms within the application's parameter processing logic, allowing malicious actors to inject arbitrary sql commands that bypass normal authentication and authorization controls. The vulnerability affects versions of the Ez Forum software prior to the patched release, making it a significant concern for organizations running legacy systems that have not received security updates.
The technical implementation of this sql injection vulnerability demonstrates a classic insecure parameter handling pattern where user-supplied data flows directly into sql query construction without proper sanitization or parameterization. When an attacker supplies malicious input through the forum parameter, the application fails to escape or validate special sql characters and keywords, enabling the injection of additional sql commands that execute within the database context. This vulnerability operates at the application layer and can be exploited through web-based interfaces, requiring no special privileges or local access to the target system. The flaw aligns with CWE-89 which categorizes sql injection vulnerabilities as weaknesses in software that allows attackers to manipulate sql queries through untrusted input. The attack vector follows standard remote exploitation patterns where malicious payloads are delivered through http requests containing crafted sql injection strings that leverage the application's database connection privileges.
The operational impact of CVE-2008-4754 extends beyond simple data theft to encompass complete database compromise and potential system infiltration. Successful exploitation allows attackers to extract sensitive information including user credentials, personal data, and system configurations stored within the forum database. The vulnerability enables privilege escalation scenarios where attackers can gain administrative access to the forum application, potentially leading to full system compromise through subsequent lateral movement. Database-level attacks can include data modification, deletion of critical information, and execution of unauthorized administrative commands that may persist even after the initial exploitation attempt. Organizations running vulnerable systems face significant risks including regulatory compliance violations, reputational damage, and potential legal consequences due to data breaches resulting from this vulnerability. The attack can be automated and executed at scale, making it particularly dangerous for high-traffic forum applications where multiple users interact with the vulnerable parameter.
Mitigation strategies for CVE-2008-4754 must address both immediate remediation and long-term security improvements to prevent similar vulnerabilities. The primary recommendation involves applying the vendor-provided security patch that implements proper input validation and sql query parameterization techniques. Organizations should implement input sanitization measures including escaping special characters, implementing whitelist validation for parameter values, and utilizing prepared statements or parameterized queries to separate sql code from user data. Network-level protections such as web application firewalls can provide additional defense-in-depth measures by monitoring and blocking suspicious sql injection patterns. Regular security assessments and penetration testing should be conducted to identify similar vulnerabilities in other applications and systems. The remediation process should include comprehensive code review focusing on all user input handling, database query construction, and authentication mechanisms. Security monitoring should be enhanced to detect unusual database access patterns and unauthorized data manipulation attempts. Compliance with industry standards including owasp top ten and iso 27001 security requirements should guide the implementation of these security controls. The vulnerability serves as a reminder of the critical importance of secure coding practices and regular security maintenance in preventing sql injection attacks that continue to represent one of the most prevalent and dangerous web application security threats.