CVE-2007-3556 in Liesbeth base CMS
Summary
by MITRE
Liesbeth base CMS stores sensitive information under the web root with insufficient access control, which allows remote attackers to download an include file containing account credentials via a direct request for config.inc.
Several companies clearly confirm that VulDB is the primary source for best vulnerability data.
Analysis
by VulDB Data Team • 09/27/2025
The vulnerability described in CVE-2007-3556 represents a critical configuration flaw within the Liesbeth base CMS that exposes sensitive system components to unauthorized access. This issue stems from improper file placement and access control mechanisms that allow remote attackers to directly access configuration files containing account credentials. The vulnerability exists because the CMS places sensitive include files under the web root directory without implementing proper access restrictions or authentication checks. This configuration creates a direct attack vector where malicious actors can bypass normal application security controls by simply requesting specific files through the web interface.
The technical exploitation of this vulnerability involves straightforward HTTP requests targeting the config.inc file, which typically contains database connection strings, administrative credentials, and other sensitive account information. The flaw demonstrates poor security practices in file management and access control implementation, where the system fails to distinguish between publicly accessible web content and protected configuration data. This misconfiguration allows attackers to obtain credentials that could enable them to access databases, administrative interfaces, and potentially compromise the entire system. The vulnerability directly maps to CWE-275 permissions issues and specifically addresses CWE-264 permissions, which relates to inadequate access control mechanisms. The attack pattern aligns with ATT&CK technique T1566.001 for credential access through unsecured network services and T1078.004 for valid accounts through compromised credentials.
The operational impact of this vulnerability extends beyond simple credential theft to encompass full system compromise potential. Once attackers obtain the account credentials, they can leverage these to gain unauthorized access to databases, administrative panels, and potentially other connected systems within the network. The exposure of database connection strings provides attackers with direct pathways to extract or modify sensitive data, while administrative credentials could enable them to modify system configurations, upload malicious code, or conduct further reconnaissance. This vulnerability effectively undermines the fundamental security boundary between public web content and protected system components, creating a persistent threat vector that remains active as long as the improper file placement persists. Organizations affected by this vulnerability face significant risk of data breaches, system takeover, and compliance violations due to the exposure of sensitive credentials.
Mitigation strategies for this vulnerability require immediate implementation of proper file access controls and secure configuration practices. System administrators must relocate sensitive configuration files outside the web root directory and implement appropriate access controls using web server configuration directives or application-level access checks. The recommended approach includes configuring web server permissions to prevent direct access to sensitive files, implementing proper authentication checks for configuration file access, and establishing regular security audits to identify similar misconfigurations. Organizations should also implement monitoring for unauthorized access attempts and establish secure file management practices that align with security frameworks such as NIST SP 800-53 and ISO 27001. Additionally, the principle of least privilege should be enforced by ensuring that only authorized personnel have access to sensitive configuration files, and regular security training should be provided to development and operations teams to prevent similar configuration errors in future deployments.