CVE-2006-3797 in DeluxeBB
Summary
by MITRE
SQL injection vulnerability in DeluxeBB 1.07 and earlier allows remote attackers to bypass authentication, spoof users, and modify settings via the (1) memberpw and (2) membercookie cookies.
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Analysis
by VulDB Data Team • 07/31/2018
The vulnerability identified as CVE-2006-3797 represents a critical SQL injection flaw within DeluxeBB version 1.07 and earlier systems. This vulnerability specifically targets the authentication mechanisms and user management components of the bulletin board software, creating a pathway for remote attackers to gain unauthorized access to the system. The flaw manifests through the manipulation of two critical cookie parameters named memberpw and membercookie, which are essential for maintaining user sessions and authentication states within the application.
The technical implementation of this vulnerability stems from inadequate input validation and sanitization within the DeluxeBB application's cookie handling logic. When the system processes these cookie values during authentication attempts, it fails to properly escape or filter special characters that could alter the intended SQL query structure. This oversight allows malicious actors to inject arbitrary SQL commands through the cookie parameters, effectively bypassing the normal authentication flow and gaining unauthorized access to user accounts. The vulnerability operates at the database level where user credentials and session information are stored, making it particularly dangerous for privilege escalation and persistent access.
The operational impact of this vulnerability extends beyond simple authentication bypass to encompass broader system compromise capabilities. Attackers exploiting this flaw can not only gain unauthorized access to user accounts but also spoof user identities, modify system settings, and potentially escalate privileges within the application. The ability to manipulate the memberpw and membercookie cookies creates a persistent threat vector that can be exploited across multiple sessions and user interactions. This vulnerability directly maps to CWE-89 which classifies SQL injection flaws as a critical weakness in software applications, and aligns with ATT&CK technique T1190 for exploiting vulnerabilities in web applications.
Mitigation strategies for this vulnerability require immediate patching of the DeluxeBB software to version 1.08 or later, which contains the necessary security fixes for the SQL injection vulnerability. Organizations should implement comprehensive input validation and output encoding mechanisms to prevent similar issues in other applications. The remediation process should include thorough code review of all cookie handling functions and implementation of proper parameterized queries to prevent SQL injection attacks. Additionally, network segmentation and web application firewalls should be deployed to monitor and filter suspicious cookie values, while regular security audits should be conducted to identify and remediate similar vulnerabilities in legacy systems. The vulnerability serves as a critical reminder of the importance of secure coding practices and the necessity of regular security updates in maintaining robust application defenses against persistent threat vectors.