CVE-2007-3968 in Dirlist Php
Summary
by MITRE
index.php in dirLIST before 0.1.1 allows remote attackers to list the contents of an excluded folder via a modified URL containing the folder name.
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Analysis
by VulDB Data Team • 04/03/2025
The vulnerability described in CVE-2007-3968 affects dirLIST version 0.1.0 and earlier, representing a critical access control flaw that undermines the security of web-based directory listing applications. This issue specifically targets the index.php script which serves as the primary interface for directory navigation and content presentation. The flaw manifests when the application fails to properly validate user input, allowing malicious actors to bypass intended access restrictions and gain unauthorized visibility into directories that should remain hidden or protected. The vulnerability stems from inadequate sanitization of URL parameters, creating a path traversal condition that enables attackers to manipulate the application's behavior through crafted requests.
The technical implementation of this vulnerability resides in the application's failure to properly validate and sanitize user-supplied input before processing directory listing requests. When a user submits a URL containing a folder name, the application should verify that the requested directory is accessible and not excluded from public viewing. However, the vulnerable version of dirLIST does not perform adequate validation checks, allowing attackers to modify URL parameters to include excluded directory names. This weakness directly relates to CWE-22, which describes improper limitation of a pathname to a restricted directory, commonly known as path traversal attacks. The flaw essentially creates a condition where the application's access control mechanisms are circumvented through simple URL manipulation.
The operational impact of this vulnerability extends beyond mere information disclosure, as it provides attackers with unauthorized access to potentially sensitive directory structures that administrators intended to keep hidden. Remote attackers can exploit this flaw without requiring authentication or special privileges, making the attack surface particularly broad and accessible. The vulnerability enables adversaries to enumerate directory contents that should remain protected, potentially revealing sensitive file structures, application configuration details, or other information that could aid in further exploitation attempts. This type of information disclosure can lead to cascading security issues where attackers use the discovered directory structure to identify additional vulnerabilities or plan more sophisticated attacks against the target system.
From a threat modeling perspective, this vulnerability aligns with ATT&CK technique T1083, which covers directory and file discovery activities. The flaw enables adversaries to gather reconnaissance information about the target environment through automated or manual means. The impact is particularly concerning in environments where directory listings might reveal application source code, configuration files, or other sensitive assets that could be exploited for privilege escalation or data theft. Security professionals should consider this vulnerability as part of a broader attack chain where initial reconnaissance through directory listing leads to more serious exploitation attempts. Organizations should implement immediate mitigation measures including updating to dirLIST version 0.1.1 or later, which contains proper input validation and access control enforcement mechanisms.
The remediation approach for this vulnerability requires comprehensive input validation and proper access control implementation. System administrators should upgrade to the patched version of dirLIST that addresses the core issue by implementing proper parameter sanitization and directory access validation. Additional defensive measures include implementing web application firewalls that can detect and block suspicious URL patterns, configuring proper access controls at the web server level, and conducting regular security assessments to identify similar input validation flaws in other applications. The vulnerability demonstrates the critical importance of proper input validation and access control implementation in web applications, serving as a reminder that even seemingly simple applications can contain fundamental security flaws that expose sensitive information to unauthorized parties.