CVE-2003-1553 in SIPS
Summary
by MITRE
Haakon Nilsen Simple Internet Publishing System (SIPS) 0.2.2 stores sensitive information under the web root with insufficient access control, which allows remote attackers to obtain password and other user information via a direct request to a user-specific configuration directory.
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Analysis
by VulDB Data Team • 07/13/2025
The vulnerability identified as CVE-2003-1553 affects the Haakon Nilsen Simple Internet Publishing System version 0.2.2, representing a critical configuration flaw that exposes sensitive user data through improper access controls. This issue manifests when the system stores user-specific configuration files containing authentication credentials and personal information directly within the web server's document root directory. The fundamental flaw lies in the application's failure to implement proper access restrictions on these sensitive files, creating an unintended information disclosure channel that adversaries can exploit through simple direct requests to specific directory paths.
The technical implementation of this vulnerability stems from the application's insecure file placement strategy where configuration directories containing user passwords, session tokens, and other authentication-related data are not protected by appropriate access control mechanisms. When the SIPS application places these sensitive files within the web root, it inherently exposes them to any user who can construct the appropriate URL path to access them directly. This represents a classic case of inadequate input validation and improper privilege management, where the system fails to distinguish between public and private content within its directory structure. The vulnerability essentially eliminates any form of access control enforcement for these specific files, allowing unauthenticated remote attackers to retrieve sensitive information simply by knowing the directory structure and file naming conventions used by the application.
From an operational perspective, this vulnerability creates significant security implications for organizations using this specific version of SIPS, as it enables attackers to obtain complete user credential information without requiring any authentication or authorization. The impact extends beyond simple credential theft to potential account takeover scenarios, where attackers can leverage stolen passwords to gain unauthorized access to user accounts and associated resources. The vulnerability also facilitates further attack escalation as compromised credentials can be used to access additional systems or services where users may have reused passwords, creating a cascading security risk. This type of information disclosure vulnerability directly violates security principles of least privilege and defense in depth, as it provides attackers with direct access to authentication data that should remain protected within secure application components.
The security implications of this vulnerability align with CWE-200, which describes improper output neutralization for logs, and CWE-532, which addresses information exposure through log data, though the specific manifestation occurs through directory traversal rather than logging mechanisms. From an ATT&CK framework perspective, this vulnerability maps to T1566.001 for credential access through credential dumping and T1078 for valid accounts usage, as attackers can leverage stolen credentials to maintain persistent access to compromised systems. The vulnerability also relates to T1213.002 for data from information repositories, as it provides direct access to user data stored in the application's configuration directories.
Mitigation strategies for CVE-2003-1553 must address both immediate remediation and long-term architectural improvements. Organizations should immediately relocate sensitive configuration files outside the web root directory and implement proper access controls using web server configuration directives such as .htaccess files or equivalent access control mechanisms. The application should be updated to a patched version that properly separates public and private content directories, ensuring that configuration files containing sensitive information are not directly accessible through web requests. Additionally, implementing proper authentication checks and authorization controls within the application code itself will prevent unauthorized access to user-specific configuration data even if directory-level protections fail. Regular security audits should be conducted to identify similar misconfigurations in other applications, and automated scanning tools should be deployed to detect improper file placement and access control issues within web applications. The vulnerability underscores the importance of secure coding practices and proper security architecture design, particularly in applications handling user authentication data, where even seemingly minor configuration errors can lead to significant security breaches.