CVE-2015-1429 in Thinfinity Remote Desktop Workstation
Summary
by MITRE
Directory traversal vulnerability in Cybele Software Thinfinity Remote Desktop Workstation 3.0.0.3 32-bit and 64-bit allows remote attackers to download arbitrary files via a .. (dot dot) in an unspecified parameter.
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Analysis
by VulDB Data Team • 11/22/2019
The vulnerability identified as CVE-2015-1429 represents a critical directory traversal flaw within Cybele Software Thinfinity Remote Desktop Workstation version 3.0.0.3 across both 32-bit and 64-bit architectures. This security weakness stems from inadequate input validation mechanisms that fail to properly sanitize user-supplied parameters before processing file requests. The flaw specifically manifests when an attacker crafts malicious requests containing directory traversal sequences using the .. (dot dot) notation, which enables unauthorized access to files outside the intended directory structure. Such vulnerabilities are classified under CWE-22 - Improper Limitation of a Pathname to a Restricted Directory, a well-documented weakness that directly impacts the security of web applications and remote desktop solutions.
The technical exploitation of this vulnerability occurs through the manipulation of unspecified parameters within the Thinfinity Remote Desktop Workstation application, allowing remote attackers to bypass normal access controls and retrieve arbitrary files from the server's file system. When the application processes requests containing directory traversal sequences, it fails to properly validate or sanitize the input, causing the system to interpret the .. characters as commands to navigate upward through directory hierarchies. This misconfiguration enables attackers to access sensitive files such as configuration data, user credentials, application source code, or system files that should remain protected from unauthorized access. The vulnerability's impact is particularly severe given that it operates remotely without requiring authentication, making it an attractive target for automated exploitation campaigns.
The operational consequences of CVE-2015-1429 extend beyond simple unauthorized file access, as it can potentially lead to complete system compromise through information disclosure and privilege escalation attacks. Attackers leveraging this vulnerability can extract sensitive data, including database connection strings, API keys, and other confidential information that may facilitate further attacks. The vulnerability aligns with several tactics described in the MITRE ATT&CK framework, particularly those related to credential access and reconnaissance activities, where adversaries gather information about system configurations and sensitive data. Organizations running affected Thinfinity Remote Desktop Workstation versions face significant risk of data breaches, regulatory compliance violations, and potential legal consequences due to the exposure of confidential information.
Mitigation strategies for this vulnerability should prioritize immediate patching of the affected Thinfinity Remote Desktop Workstation software to the latest available version that addresses the directory traversal flaw. System administrators should implement network segmentation and access controls to limit exposure of the affected service to trusted networks only, while also deploying web application firewalls that can detect and block directory traversal attempts. Additional defensive measures include implementing proper input validation and sanitization routines, restricting file system access permissions for the application, and conducting regular security assessments to identify similar vulnerabilities within the organization's infrastructure. Organizations should also consider implementing monitoring solutions that can detect anomalous file access patterns or directory traversal attempts that may indicate exploitation of this vulnerability.