CVE-2003-1335 in Simple And Nice Index File
Summary
by MITRE
Directory traversal vulnerability in Kai Blankenhorn Bitfolge simple and nice index file (aka snif) before 1.2.5 allows remote attackers to download files from locations above the snif directory.
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Analysis
by VulDB Data Team • 07/14/2025
The vulnerability identified as CVE-2003-1335 represents a classic directory traversal flaw within the Bitfolge simple and nice index file (snif) web application. This security weakness exists in versions prior to 1.2.5 and allows remote attackers to access files located outside the intended web root directory. The vulnerability stems from inadequate input validation and path handling mechanisms within the application's file access routines. Attackers can exploit this issue by manipulating file path parameters to traverse directories above the designated snif directory, potentially gaining access to sensitive system files, configuration data, or other restricted resources that should remain protected from unauthorized access.
The technical implementation of this directory traversal vulnerability occurs when the snif application processes user-supplied input without proper sanitization or validation of file paths. When users provide file references through web parameters or direct URL access, the application fails to adequately restrict these paths to the intended directory scope. This flaw enables attackers to craft malicious requests containing sequences such as "../" or similar path traversal patterns that allow navigation up the directory tree. The vulnerability directly maps to CWE-22, which describes improper limitation of a pathname to a restricted directory, commonly known as path traversal or directory traversal attacks. Such flaws typically arise from insufficient input validation, lack of proper path normalization, or absence of secure file access controls that should prevent access to files outside the application's intended scope.
The operational impact of this vulnerability extends beyond simple information disclosure, as it can enable attackers to access critical system resources that may contain sensitive data, authentication credentials, or configuration information. Remote exploitation of this vulnerability means that attackers do not require local system access or physical presence to exploit the flaw. The consequences can include unauthorized data access, potential system compromise, and exposure of internal system structures that could aid in further attacks. Organizations running affected versions of snif may experience data breaches, compliance violations, and potential regulatory penalties depending on the nature of the exposed information. The vulnerability also provides attackers with a foothold for additional exploitation attempts, as access to system files might reveal information about the underlying operating system, installed applications, or network configurations that could be leveraged for more sophisticated attacks.
Mitigation strategies for this vulnerability should focus on immediate patching of the snif application to version 1.2.5 or later, which contains the necessary fixes to prevent directory traversal attacks. System administrators should implement proper input validation and sanitization mechanisms that reject or filter out potentially malicious path sequences before they are processed by the application. Additional defensive measures include implementing proper access controls, restricting file system permissions for the snif directory, and deploying web application firewalls that can detect and block suspicious path traversal patterns. The remediation approach should align with ATT&CK framework techniques such as T1071.004 for application layer protocol and T1566 for credential access, as the vulnerability could enable attackers to move laterally within networks or access sensitive credentials stored in traversed files. Organizations should also conduct thorough security assessments to identify other applications that may be vulnerable to similar path traversal flaws and ensure that all web applications implement proper input validation and secure coding practices to prevent such issues from occurring in the future.