CVE-2005-0734 in Active Webcam
Summary
by MITRE
PY Software Active Webcam WebServer (webcam.exe) 5.5 allows remote attackers to cause a denial of service (memory exhaustion and process crash) via a large number of HTTP requests.
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Analysis
by VulDB Data Team • 06/21/2024
The vulnerability identified as CVE-2005-0734 affects PY Software Active Webcam WebServer version 5.5, specifically targeting the webcam.exe process that serves as the core web server component for this surveillance software. This issue represents a classic denial of service vulnerability that exploits the server's inadequate handling of concurrent HTTP requests, demonstrating a fundamental flaw in resource management and input validation. The vulnerability exists within the web server's protocol implementation where it fails to properly throttle or limit incoming connections, creating an exploitable condition that can be leveraged by remote attackers to disrupt service availability.
The technical flaw manifests through the server's inability to handle excessive HTTP requests gracefully, leading to memory exhaustion and subsequent process crashes. When an attacker sends a large volume of concurrent HTTP requests to the webcam.exe web server, the system's memory allocation mechanisms become overwhelmed as each request consumes resources without proper cleanup or rate limiting. This behavior aligns with CWE-400, which categorizes unchecked resource consumption as a vulnerability where applications fail to properly manage system resources under stress conditions. The vulnerability operates at the application layer and represents a form of resource exhaustion attack that can be classified under the broader ATT&CK technique T1499.1, specifically targeting the availability of services through resource consumption attacks.
The operational impact of this vulnerability extends beyond simple service disruption, as it can affect critical surveillance operations where continuous monitoring is required. Organizations relying on this webcam software for security monitoring may experience unexpected downtime during critical periods, potentially creating security gaps that malicious actors could exploit. The vulnerability is particularly concerning in environments where surveillance systems must maintain continuous availability, as the denial of service can occur without requiring authentication or specialized knowledge of the system's internal workings. Attackers can leverage this vulnerability using simple tools to flood the server with requests, making it an attractive target for individuals seeking to disrupt security operations.
Mitigation strategies for this vulnerability should focus on implementing proper rate limiting and connection throttling mechanisms within the web server configuration. Network administrators should consider implementing firewall rules or intrusion prevention systems to limit the number of concurrent connections to the webcam server ports. Additionally, applying the latest security patches from PY Software, if available, would address the underlying memory management issues that contribute to the vulnerability. System monitoring should be enhanced to detect unusual patterns of incoming requests that may indicate an attempted exploitation. The implementation of redundant systems and failover mechanisms can also help maintain operational continuity during potential attacks. Organizations should also consider network segmentation to isolate surveillance systems from general network traffic, reducing the attack surface and limiting the potential impact of such denial of service conditions.