CVE-2009-0919 in XAMPP
Summary
by MITRE
XAMPP installs multiple packages with insecure default passwords, which makes it easier for remote attackers to obtain access via (1) the "lampp" default password for the "nobody" account within the included ProFTPD installation, (2) a blank default password for the "root" account within the included MySQL installation, (3) a blank default password for the "pma" account within the phpMyAdmin installation, and possibly other unspecified passwords. NOTE: this was originally reported as a problem in DFLabs PTK, but this issue affects any product that is installed within the XAMPP environment, and should not be viewed as a vulnerability within that product. NOTE: DFLabs states that PTK is intended for use in a laboratory with "no contact from / to internet."
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Analysis
by VulDB Data Team • 04/20/2025
The vulnerability described in CVE-2009-0919 represents a critical security misconfiguration issue within the XAMPP web server distribution that exposes multiple default accounts with weak or absent authentication credentials. This vulnerability affects the widely used XAMPP package that includes Apache web server, MySQL database, and phpMyAdmin interface, making it a significant concern for developers and system administrators who rely on this environment for local development and testing. The flaw stems from the default installation configuration that fails to enforce proper authentication mechanisms for several core components, creating multiple entry points for unauthorized access. This issue directly aligns with CWE-798, which addresses the use of hard-coded credentials, and CWE-312, covering the exposure of sensitive information through improper handling of authentication credentials. The vulnerability is particularly concerning because it affects components that are commonly used in development environments but may be deployed in production-like scenarios without proper security hardening.
The technical implementation of this vulnerability involves three primary attack vectors that leverage default account configurations within the XAMPP ecosystem. First, the ProFTPD installation includes a default "lampp" password for the "nobody" account that provides remote attackers with unauthorized file system access and potential privilege escalation capabilities. Second, the MySQL database installation features a blank default password for the "root" account, allowing attackers to gain complete database administrative access without any authentication requirements. Third, the phpMyAdmin interface contains a blank default password for the "pma" account, enabling unauthorized database management operations. These default credentials are particularly dangerous because they are well-documented and easily accessible to attackers through public repositories and security databases. The vulnerability operates under the ATT&CK framework's initial access phase, specifically targeting credential dumping and default credential exploitation techniques that are commonly used in automated attack frameworks. The combination of these weak default configurations creates a cascading security risk where compromise of one component can lead to access to other interconnected services within the same environment.
The operational impact of CVE-2009-0919 extends beyond simple unauthorized access to encompass potential data breaches, system compromise, and regulatory compliance violations. When XAMPP installations are deployed without proper credential management, attackers can execute arbitrary code, steal sensitive data, modify database contents, or establish persistent backdoors within the system. The vulnerability is particularly problematic in environments where XAMPP is used for production-like purposes or where systems are exposed to network traffic, as it eliminates the need for sophisticated attack techniques and allows for rapid exploitation. Organizations that fail to address this vulnerability may face significant consequences including customer data exposure, financial losses, and regulatory penalties under data protection laws such as GDPR or HIPAA. The vulnerability's impact is amplified when considering that XAMPP installations are frequently used in development environments where security practices may be less rigorous, and the default installations are often left unchanged. This makes the vulnerability particularly prevalent in scenarios where systems are deployed without proper security hardening, including scenarios where the software is installed in environments that are not properly isolated from external networks.
Effective mitigation strategies for CVE-2009-0919 require comprehensive credential management and security hardening practices that address each vulnerable component within the XAMPP environment. System administrators should immediately change all default passwords for the affected accounts including the ProFTPD "nobody" account, MySQL root account, and phpMyAdmin pma account. The implementation of strong, unique passwords for each account, ideally generated through cryptographic randomization, should be enforced as part of the initial setup process. Additionally, organizations should implement network segmentation to isolate XAMPP installations from external networks and disable unnecessary services that may expose default accounts. The configuration files for each component should be reviewed and modified to ensure that default accounts are either removed or properly secured with strong authentication mechanisms. Regular security audits and vulnerability assessments should be conducted to identify and remediate similar configuration issues in other software components. Organizations should also consider implementing automated patch management processes that ensure all software components are regularly updated with the latest security patches and that default installations are properly hardened before deployment. The mitigation approach aligns with the principle of least privilege and follows security best practices outlined in NIST SP 800-53 and ISO 27001 frameworks, ensuring that systems are configured with appropriate security controls to prevent unauthorized access and maintain data integrity.