CVE-2010-4234 in CMNC-200
Summary
by MITRE
The web server on the Camtron CMNC-200 Full HD IP Camera and TecVoz CMNC-200 Megapixel IP Camera with firmware 1.102A-008 allows remote attackers to cause a denial of service (device reboot) via a large number of requests in a short time interval.
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Analysis
by VulDB Data Team • 09/01/2024
The CVE-2010-4234 vulnerability affects Camtron CMNC-200 Full HD IP Camera and TecVoz CMNC-200 Megapixel IP Camera devices running firmware version 1.102A-008, representing a critical denial of service flaw that can be exploited remotely by attackers. This vulnerability stems from the web server implementation within these network cameras, which fails to properly handle excessive request volumes. The flaw manifests when an attacker sends a large number of requests to the device within a brief time frame, causing the camera to become unresponsive and subsequently reboot. The vulnerability impacts the availability of the network security device, potentially disrupting surveillance operations and creating security gaps during the device downtime.
The technical nature of this vulnerability aligns with CWE-400, which describes unchecked resource consumption, and represents a classic example of a resource exhaustion attack. The web server component lacks adequate rate limiting or request validation mechanisms to prevent malicious actors from overwhelming the device's processing capabilities. When the device receives the flood of requests, it consumes excessive system resources such as CPU cycles, memory, or network bandwidth, ultimately leading to a system crash and automatic reboot. This behavior constitutes a denial of service condition that can be executed remotely without requiring authentication, making it particularly dangerous for security infrastructure devices.
The operational impact of CVE-2010-4234 extends beyond simple service disruption, as network cameras serve as critical components in security monitoring systems. When these devices become unavailable due to repeated reboots, organizations face potential security gaps in their surveillance coverage, which could be exploited by adversaries. The vulnerability also impacts the reliability of security infrastructure, potentially leading to increased maintenance overhead as security teams must repeatedly restore device functionality. Additionally, the automatic reboot behavior may cause loss of recent video recordings or configuration settings, creating data integrity issues that complicate incident response and forensic analysis.
Mitigation strategies for this vulnerability should focus on network-level protections and device hardening measures. Organizations should implement network access control lists to restrict access to the camera's web interface, particularly from untrusted networks. Deploying intrusion detection systems that can identify and block request flooding patterns provides an additional layer of defense. Device administrators should consider implementing rate limiting at the network perimeter or through firewall rules to prevent excessive traffic from reaching the cameras. Regular firmware updates and patches should be applied to address known vulnerabilities, while security monitoring should be implemented to detect unusual traffic patterns that may indicate exploitation attempts. The ATT&CK framework categorizes this vulnerability under the T1499 sub-technique for Network Denial of Service, highlighting the importance of protecting network infrastructure devices from such attacks.