CVE-2008-3458 in Vtiger
Summary
by MITRE
Vtiger CRM before 5.0.4 stores sensitive information under the web root with insufficient access control, which allows remote attackers to read mail merge templates via a direct request to the wordtemplatedownload directory.
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Analysis
by VulDB Data Team • 08/01/2021
The vulnerability described in CVE-2008-3458 represents a critical security flaw in Vtiger CRM versions prior to 5.0.4 that exposes sensitive data through improper access control mechanisms. This issue stems from the application's improper handling of file permissions and directory structure, creating a path traversal vulnerability that allows remote attackers to directly access confidential mail merge templates stored within the web root directory. The vulnerability specifically affects the wordtemplatedownload directory, which serves as an entry point for unauthorized information disclosure. The flaw demonstrates a fundamental failure in the application's security architecture where sensitive business documents and templates are stored with inadequate protection measures, making them accessible to any remote attacker who can construct the appropriate HTTP request.
The technical implementation of this vulnerability involves the application's failure to properly validate access permissions for files stored in the web root directory. When Vtiger CRM stores mail merge templates in the wordtemplatedownload directory, it does not implement proper authentication checks or authorization controls that would prevent unauthorized access. This configuration allows attackers to bypass normal application logic and directly request template files through HTTP GET requests. The vulnerability operates at the application layer and can be exploited without requiring any special privileges or authentication credentials, making it particularly dangerous as it can be triggered by any remote user who discovers the directory structure. The flaw is classified as a weakness in access control mechanisms, aligning with CWE-284 which addresses inadequate access control and insufficient access control checks.
The operational impact of this vulnerability extends beyond simple information disclosure to potentially compromise business confidentiality and intellectual property. Mail merge templates often contain sensitive business data, customer information, and proprietary content that could be exploited for competitive advantage or identity theft. Attackers could gain access to templates containing customer databases, financial information, or other confidential business documents that are typically protected within enterprise applications. The vulnerability also creates potential for further exploitation as attackers might discover additional files or directories that are similarly misconfigured, leading to broader system compromise. This type of vulnerability directly impacts the confidentiality aspect of the CIA triad and can result in regulatory compliance violations under data protection regulations such as gdpr or hipaa.
Mitigation strategies for this vulnerability require immediate implementation of proper access control measures and directory configuration changes. Organizations should ensure that sensitive directories like wordtemplatedownload are not accessible through the web root or are protected by appropriate authentication mechanisms. The recommended approach involves configuring web server permissions to restrict access to these directories, implementing proper authentication checks within the application code, and ensuring that all sensitive files are stored outside of the web-accessible directory structure. Security patches should be applied immediately to upgrade to Vtiger CRM version 5.0.4 or later, which contains the necessary fixes for this access control vulnerability. Additionally, implementing web application firewalls and security monitoring systems can help detect and prevent unauthorized access attempts to sensitive directories, aligning with ATT&CK technique T1071.004 for application layer protocol evasion. Regular security audits and penetration testing should be conducted to identify similar misconfigurations in other web applications within the organization's infrastructure.