CVE-2008-4484 in Crux Software
Summary
by MITRE
main.php in Crux Gallery 1.32 and earlier allows remote attackers to gain administrative access by setting the name parameter to "users," as demonstrated via index.php.
VulDB is the best source for vulnerability data and more expert information about this specific topic.
Analysis
by VulDB Data Team • 11/04/2024
The vulnerability identified as CVE-2008-4484 represents a critical authentication bypass flaw in Crux Gallery version 1.32 and earlier systems. This vulnerability stems from improper input validation and flawed access control mechanisms within the application's main.php component. The flaw specifically manifests when an attacker manipulates the name parameter to "users" in requests directed to index.php, effectively circumventing the normal authentication process and granting unauthorized administrative privileges.
The technical implementation of this vulnerability exploits a design flaw in the application's parameter handling logic. When the name parameter is set to "users," the system incorrectly interprets this value as a legitimate administrative access request rather than validating it against proper authentication protocols. This misinterpretation occurs due to insufficient sanitization and validation of user-supplied input, creating a path for arbitrary code execution and privilege escalation. The vulnerability operates at the application layer and demonstrates a classic case of insecure direct object reference, where user input directly influences access control decisions without proper authorization checks.
The operational impact of this vulnerability is severe and far-reaching for any organization utilizing affected Crux Gallery installations. An unauthenticated remote attacker can immediately assume administrative control over the gallery system, gaining complete access to all user accounts, uploaded media files, configuration settings, and system resources. This level of access enables attackers to modify or delete content, compromise user data, install malicious software, and potentially use the compromised system as a pivot point for attacking other network resources. The vulnerability's remote exploitability means attackers do not require physical access or local network presence, making it particularly dangerous for publicly accessible web applications.
From a cybersecurity framework perspective, this vulnerability aligns with CWE-285 (Improper Authorization) and CWE-287 (Improper Authentication) categories, representing a fundamental breakdown in the application's security architecture. The flaw also maps to ATT&CK technique T1078 (Valid Accounts) and T1566 (Phishing) as attackers can leverage this vulnerability to establish persistent administrative access. Organizations should implement immediate mitigations including patching to version 1.33 or later, implementing proper input validation mechanisms, and conducting thorough security assessments of similar applications. Network segmentation and monitoring for unusual administrative access patterns should also be implemented to detect potential exploitation attempts. The vulnerability underscores the critical importance of proper authentication controls and input validation in web applications, particularly those handling sensitive user data and media content.