CVE-2013-3429 in Video Surveillance Manager
Summary
by MITRE
Multiple directory traversal vulnerabilities in Cisco Video Surveillance Manager (VSM) before 7.0.0 allow remote attackers to read system files via a crafted URL, related to the Cisco_VSBWT (aka Broadware sample code) package, aka Bug ID CSCsv37163.
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Analysis
by VulDB Data Team • 10/30/2024
The vulnerability CVE-2013-3429 represents a critical directory traversal flaw within Cisco Video Surveillance Manager version 7.0.0 and earlier, specifically affecting the Cisco_VSBWT (Broadware sample code) package component. This issue enables remote attackers to access sensitive system files through manipulation of crafted URLs, demonstrating a fundamental weakness in input validation and file access controls. The vulnerability falls under the category of CWE-22 - Improper Limitation of a Pathname to a Restricted Directory, which is a well-documented weakness in software systems where applications fail to properly validate user-supplied input before using it in file operations. The attack vector is particularly concerning as it requires no authentication and can be executed remotely, making it accessible to any attacker with network connectivity to the affected system.
The technical implementation of this vulnerability stems from insufficient sanitization of user-provided URL parameters within the VSM application's handling of the Broadware sample code package. When the application processes a maliciously crafted URL containing directory traversal sequences such as ../ or ..\, it fails to properly validate or sanitize these inputs before using them to access system files. This allows an attacker to navigate outside the intended directory structure and access files that should remain restricted, including system configuration files, credentials, and potentially sensitive operational data. The vulnerability specifically impacts the Cisco_VSBWT component which handles video surveillance data processing, making it particularly dangerous for security-conscious organizations relying on video surveillance infrastructure.
The operational impact of CVE-2013-3429 extends beyond simple unauthorized file access, as it can potentially lead to complete system compromise and unauthorized access to surveillance data. Attackers can leverage this vulnerability to extract system information that may reveal network topology, user credentials, and system configurations that could facilitate further attacks. The vulnerability creates a persistent threat vector that remains exploitable until the affected software is properly patched or updated, potentially allowing attackers to maintain long-term access to surveillance systems. Organizations using Cisco Video Surveillance Manager may face significant security risks including data breaches, privacy violations, and potential operational disruption. This vulnerability aligns with ATT&CK technique T1083 - File and Directory Discovery, which describes how adversaries attempt to gather information about file systems and directories, and T1071.004 - Application Layer Protocol: DNS, which may be used to establish command and control communications after initial access.
Mitigation strategies for CVE-2013-3429 primarily involve immediate patching and updating of Cisco Video Surveillance Manager to version 7.0.0 or later, which contains the necessary fixes for the directory traversal vulnerability. Organizations should also implement network segmentation and access controls to limit exposure of the affected systems to untrusted networks. Additional defensive measures include deploying web application firewalls to filter malicious URL requests, implementing strict input validation for all user-supplied data, and conducting regular security assessments of surveillance infrastructure. The vulnerability highlights the importance of proper input validation and the principle of least privilege in system design, where applications should never trust user input and should always validate and sanitize all external data before processing. Regular security updates and vulnerability management programs are essential to prevent exploitation of similar weaknesses in networked systems and to maintain robust security postures against evolving threats.