CVE-2014-8756 in Network Camera Recorder
Summary
by MITRE
The NcrCtl4.NcrNet.1 control in Panasonic Network Camera Recorder before 4.04R03 allows remote attackers to execute arbitrary code via a crafted GetVOLHeader method call, which writes null bytes to an arbitrary address.
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Analysis
by VulDB Data Team • 04/12/2019
The vulnerability identified as CVE-2014-8756 resides within the NcrCtl4.NcrNet.1 control component of Panasonic Network Camera Recorder software versions prior to 4.04R03. This represents a critical remote code execution flaw that fundamentally undermines the security posture of networked camera systems. The vulnerability specifically manifests through the GetVOLHeader method, which when improperly handled allows attackers to manipulate memory operations in ways that can lead to arbitrary code execution on the target system. The flaw operates by enabling an attacker to write null bytes to arbitrary memory addresses, effectively creating a memory corruption condition that can be leveraged for privilege escalation and system compromise.
This vulnerability falls under the CWE-121 category of stack-based buffer overflow, though the specific mechanism involves memory manipulation rather than traditional buffer overflows. The attack vector is particularly concerning as it enables remote exploitation without requiring authentication, making it accessible to any attacker who can reach the network camera recorder service. The ability to write null bytes to arbitrary addresses creates a pathway for attackers to manipulate program execution flow, potentially leading to complete system compromise. According to ATT&CK framework, this vulnerability maps to T1059.007 for remote code execution and T1068 for privilege escalation, as the successful exploitation would allow adversaries to execute malicious code with the privileges of the affected service.
The operational impact of this vulnerability extends beyond simple code execution, as network camera recorder systems typically serve as critical components in security infrastructure for organizations. These devices often store sensitive video surveillance data and may be integrated with other security systems, making them attractive targets for attackers seeking persistent access to network environments. The vulnerability can be exploited to gain unauthorized access to video feeds, potentially allowing for surveillance evasion or data exfiltration. Organizations relying on Panasonic network camera systems for security operations face significant risk, as the exploitation could go undetected while attackers maintain persistent access to their surveillance infrastructure. The memory corruption aspect of this vulnerability also means that successful exploitation could result in system instability or crashes, potentially disrupting security operations during critical incidents.
Mitigation strategies for CVE-2014-8756 should prioritize immediate software updates to Panasonic Network Camera Recorder versions 4.04R03 or later, which contain patches addressing the memory manipulation vulnerability. Network segmentation and access controls should be implemented to limit exposure of these devices to untrusted networks, with firewall rules restricting access to the specific ports used by the NcrCtl4.NcrNet.1 control. Regular security assessments should include verification of patched software versions and monitoring for suspicious network activity related to the affected services. Organizations should also consider implementing intrusion detection systems with signatures specific to this vulnerability to detect exploitation attempts. The remediation process should include comprehensive testing of updated firmware to ensure that the patch does not introduce compatibility issues with existing security infrastructure while maintaining the integrity of the surveillance network.