CVE-2010-4231 in CMNC-200
Summary
by MITRE
Directory traversal vulnerability in the web-based administration interface 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 read arbitrary files via a .. (dot dot) in the URI.
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Analysis
by VulDB Data Team • 09/08/2024
The CVE-2010-4231 vulnerability represents a critical directory traversal flaw affecting the web-based administration interface of Camtron CMNC-200 Full HD IP Camera and TecVoz CMNC-200 Megapixel IP Camera devices. This security weakness stems from insufficient input validation within the URI processing mechanism of the device's web interface, allowing malicious actors to manipulate file access paths through crafted requests containing directory traversal sequences. The vulnerability specifically manifests when the system fails to properly sanitize user-supplied URI parameters, enabling attackers to navigate beyond the intended directory structure and access sensitive files on the device's file system. This type of vulnerability falls under the Common Weakness Enumeration category CWE-22, which classifies directory traversal attacks as a fundamental security flaw that permits unauthorized access to restricted directories and files. The impact extends beyond simple file disclosure, as it can potentially expose configuration files, authentication credentials, and other sensitive system data that could compromise the entire device and its network.
The technical exploitation of this vulnerability occurs through the manipulation of URI parameters in HTTP requests sent to the camera's web administration interface. Attackers can append directory traversal sequences such as ".." or "%2e%2e%2f" to standard file paths, effectively allowing them to navigate up the directory tree and access files outside the intended web root. This flaw specifically affects firmware version 1.102A-008 and likely impacts similar camera models from the same manufacturers. The vulnerability enables remote attackers to retrieve arbitrary files from the device's file system, potentially including system configuration files, user credentials, and other sensitive data that could be used for further exploitation or lateral movement within the network. The lack of proper input validation and path sanitization in the web interface components creates a direct attack vector that requires no local access or authentication, making it particularly dangerous for network-connected devices. From an operational perspective, this vulnerability represents a significant risk to physical security infrastructure, as IP cameras are often deployed in critical security applications where unauthorized access to camera data could compromise surveillance operations.
The operational impact of CVE-2010-4231 extends beyond immediate data exposure to encompass broader network security implications. When exploited, this vulnerability can provide attackers with access to camera configuration data, potentially including network settings, user accounts, and administrative credentials that could enable further compromise of the surveillance network. The vulnerability's remote exploitability means that attackers can target these devices from anywhere on the internet without requiring physical access or network proximity. This characteristic aligns with ATT&CK technique T1071.004, which covers application layer protocol: web protocols, as the attack vector utilizes standard HTTP communication channels. Organizations relying on these cameras for security operations face potential exposure of sensitive surveillance data, which could include footage, access logs, and system configurations that might reveal network topology or security weaknesses. The vulnerability also presents a risk for attackers to establish persistent access points within networks, as camera devices often operate with elevated privileges and may be overlooked during routine security assessments. The long-term implications include potential data breaches, compromised surveillance operations, and the possibility of these devices being used as entry points for broader network infiltration. Network administrators must consider the potential for this vulnerability to be exploited as part of larger attack campaigns, particularly in environments where security cameras are integrated into broader network infrastructure without proper segmentation or monitoring.
Mitigation strategies for CVE-2010-4231 should focus on immediate firmware updates and network-level protections. Device manufacturers should provide patched firmware versions that implement proper input validation and URI sanitization to prevent directory traversal attacks. Network segmentation and access controls should be implemented to limit direct internet access to these devices, as they should typically operate within protected network segments. The implementation of web application firewalls and network intrusion detection systems can help identify and block malicious URI patterns targeting this vulnerability. Regular security assessments and vulnerability scanning should be conducted to identify unpatched devices within the network infrastructure. Additionally, organizations should implement network monitoring to detect unusual traffic patterns that might indicate exploitation attempts. The remediation process should include comprehensive testing of updated firmware to ensure that the patch does not disrupt legitimate camera operations while effectively addressing the directory traversal vulnerability. Security teams must also consider the broader context of device lifecycle management, ensuring that legacy camera systems are properly maintained or replaced as part of comprehensive security strategies. From a compliance perspective, this vulnerability highlights the importance of maintaining up-to-date security patches and following industry best practices for securing networked devices, particularly those involved in critical infrastructure or security operations.