CVE-2005-1571 in Showoff Digital Media Software
Summary
by MITRE
Multiple directory traversal vulnerabilities in ShowOff! 1.5.4 allow remote attackers to read arbitrary files via ".." sequences in arguments to the (1) ShowAlbum, (2) ShowVideo, or (3) ShowGraphic scripts.
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Analysis
by VulDB Data Team • 06/01/2019
The vulnerability identified as CVE-2005-1571 represents a critical directory traversal flaw affecting ShowOff! version 1.5.4, a web-based media gallery application. This vulnerability stems from inadequate input validation mechanisms within the application's core scripts, specifically the ShowAlbum, ShowVideo, and ShowGraphic components that handle user-supplied parameters. The flaw allows remote attackers to manipulate file path references through the use of directory traversal sequences, commonly known as dot-dot-slash sequences, which are typically represented as ".." in file system paths. These sequences enable attackers to navigate upward through directory structures and access files that should remain restricted to authorized users.
The technical implementation of this vulnerability occurs when the ShowOff! application processes user input without proper sanitization or validation of path parameters. When attackers submit malicious input containing ".." sequences to the affected scripts, the application fails to properly validate or sanitize these inputs before using them in file system operations. This lack of input validation creates an exploitable condition where the application's file access routines interpret the traversal sequences as legitimate path navigation commands rather than malicious input. The vulnerability specifically affects three distinct scripts within the application, each handling different media types but sharing the same underlying input validation weakness. This multi-script exposure increases the attack surface and provides multiple potential entry points for exploitation.
The operational impact of CVE-2005-1571 is severe and multifaceted, as it allows attackers to access arbitrary files on the server hosting the ShowOff! application. This capability extends beyond mere information disclosure to potentially enable complete system compromise through access to configuration files, database credentials, application source code, and other sensitive system resources. Attackers can leverage this vulnerability to read system files such as password hashes, configuration files containing database connection strings, or even application source code that may reveal additional vulnerabilities. The remote nature of the attack means that exploitation does not require physical access to the system, making it particularly dangerous for web-hosted applications. This 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 vulnerabilities.
The attack vector for this vulnerability aligns with several techniques documented in the MITRE ATT&CK framework, particularly those related to credential access and privilege escalation. The ability to read arbitrary files represents a significant information gathering capability that can be used to identify additional attack vectors and system weaknesses. Security professionals should note that this vulnerability demonstrates the critical importance of input validation and proper file access controls in web applications. The affected ShowOff! application fails to implement proper access control mechanisms, allowing unauthorized file system access through user-supplied parameters. This vulnerability also highlights the need for defense in depth strategies, as the application should have implemented multiple layers of protection including proper input validation, access control checks, and secure coding practices to prevent such path traversal attacks.
Mitigation strategies for CVE-2005-1571 should focus on immediate input validation and sanitization of all user-supplied parameters that are used in file system operations. Organizations should implement proper path validation mechanisms that reject or sanitize any input containing directory traversal sequences before they can be processed by the application. The recommended approach involves implementing a whitelist-based validation system that only allows specific, expected file paths and rejects any input that attempts to navigate outside of designated directories. Additionally, the application should be updated to a newer version of ShowOff! that addresses this vulnerability, as the original version 1.5.4 is no longer supported. System administrators should also consider implementing web application firewalls that can detect and block directory traversal attempts, and conduct regular security assessments to identify similar vulnerabilities in other web applications within the organization's infrastructure. The vulnerability underscores the importance of secure coding practices and the necessity of implementing proper input validation as a fundamental security control to prevent such critical path traversal attacks.