CVE-2008-1094 in Spam Firewall
Summary
by MITRE
SQL injection vulnerability in index.cgi in the Account View page in Barracuda Spam Firewall (BSF) before 3.5.12.007 allows remote authenticated administrators to execute arbitrary SQL commands via a pattern_x parameter in a search_count_equals action, as demonstrated by the pattern_0 parameter.
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Analysis
by VulDB Data Team • 11/19/2024
The vulnerability identified as CVE-2008-1094 represents a critical SQL injection flaw within the Barracuda Spam Firewall software ecosystem. This security weakness exists in the index.cgi script that handles the Account View page functionality, specifically affecting versions prior to 3.5.12.007 of the Barracuda Spam Firewall. The vulnerability manifests when authenticated administrators access the search_count_equals action, where the pattern_x parameter becomes a vector for malicious SQL command injection. The attack scenario demonstrates how an authenticated user can manipulate the pattern_0 parameter to execute arbitrary SQL commands against the underlying database system. This vulnerability is particularly concerning because it operates within the administrative interface, providing attackers with elevated privileges to manipulate the database directly. The flaw stems from inadequate input validation and parameter sanitization within the web application's processing logic, allowing malicious payloads to bypass normal security controls and directly interact with the database engine.
The technical exploitation of this vulnerability follows a well-established SQL injection attack pattern that aligns with CWE-89, which categorizes improper neutralization of special elements used in SQL commands. The attack requires an authenticated administrator account, which reduces the initial access barrier but still represents a significant risk given the elevated privileges available. The pattern_x parameter serves as the primary injection point within the search_count_equals action, where user-supplied input flows directly into SQL query construction without proper sanitization or parameterization. This design flaw enables attackers to inject malicious SQL syntax that gets executed by the database engine, potentially allowing for data extraction, modification, or deletion. The vulnerability operates at the application layer and requires network access to the web interface, making it accessible through standard network-based attacks. The exploitation process typically involves crafting malicious SQL payloads that can leverage the pattern_0 parameter to manipulate database queries and achieve unauthorized access to sensitive information.
The operational impact of this vulnerability extends beyond simple data compromise, as it provides attackers with direct database manipulation capabilities within the email security infrastructure. An attacker who successfully exploits this vulnerability can gain access to sensitive email data, user credentials, and configuration information stored within the Barracuda Spam Firewall database. The administrative access granted through this vulnerability allows for complete control over the email filtering policies and user management functions. This compromise can lead to unauthorized email redirection, spam bypass, or complete disruption of email services. The vulnerability also poses risks to the broader network security posture, as the compromised firewall may become a pivot point for further attacks against internal systems. Organizations relying on Barracuda Spam Firewall for email security face potential exposure to data breaches, email spoofing, and service disruption that could affect business continuity and regulatory compliance. The attack vector demonstrates the importance of input validation and the principle of least privilege in security design, as the vulnerability allows authenticated users to escalate their privileges through database manipulation.
Mitigation strategies for this vulnerability must address both immediate remediation and long-term security improvements. The primary solution involves upgrading to Barracuda Spam Firewall version 3.5.12.007 or later, which contains the necessary patches to prevent SQL injection attacks through the affected parameter. Organizations should implement comprehensive input validation and parameterized queries to prevent similar vulnerabilities in custom applications. Network segmentation and access controls should be strengthened to limit administrative access to only necessary personnel. The implementation of web application firewalls and database activity monitoring can provide additional layers of protection against exploitation attempts. Security teams should conduct regular vulnerability assessments and penetration testing to identify similar injection vulnerabilities in other systems. The remediation process should include thorough testing of the updated software to ensure that the patch does not introduce compatibility issues with existing configurations. Additionally, organizations should establish incident response procedures specifically addressing database compromise scenarios, including forensic analysis capabilities and recovery protocols. Regular security awareness training for administrators can help prevent social engineering attacks that might lead to credential compromise, while monitoring systems should be configured to detect unusual database access patterns that could indicate exploitation attempts. This vulnerability serves as a reminder of the critical importance of maintaining up-to-date security patches and implementing defense-in-depth strategies to protect critical infrastructure components.