CVE-2017-2875 in C1 Indoor HD Camera
Summary
by MITRE
An exploitable buffer overflow vulnerability exists in the Multi-Camera interface used by the Foscam C1 Indoor HD Camera running application firmware 2.52.2.43. A specially crafted request on port 10000 can cause a buffer overflow resulting in overwriting arbitrary data.
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Analysis
by VulDB Data Team • 05/17/2023
The vulnerability identified as CVE-2017-2875 represents a critical buffer overflow flaw within the Foscam C1 Indoor HD Camera's multi-camera interface implementation. This security weakness affects devices running firmware version 2.52.2.43 and specifically targets the camera's network communication protocol on port 10000. The flaw stems from inadequate input validation mechanisms that fail to properly sanitize or limit the size of data received through the network interface, creating an exploitable condition that allows attackers to manipulate memory structures within the device's operating environment.
The technical implementation of this vulnerability resides in the camera's network protocol handling code where incoming requests are processed without sufficient bounds checking. When a maliciously crafted request is sent to port 10000, the application fails to validate the length or content of the data packet before processing it, leading to a classic buffer overflow condition. This allows an attacker to overwrite adjacent memory locations with controlled data, potentially enabling arbitrary code execution or system compromise. The vulnerability operates at the application layer and requires no authentication to exploit, making it particularly dangerous in unsecured network environments.
The operational impact of this vulnerability extends beyond simple denial of service conditions, as it can potentially enable full system compromise of the affected camera device. An attacker who successfully exploits this buffer overflow could gain unauthorized access to the camera's internal memory, potentially allowing for persistent backdoor access, data exfiltration, or use of the compromised device as a pivot point for attacking other networked systems. The vulnerability affects not only the individual camera but also poses risks to broader network security if the device serves as a gateway or if multiple vulnerable cameras exist within the same network infrastructure. This makes the flaw particularly concerning for enterprise security environments where surveillance systems may be interconnected and lack proper network segmentation.
Mitigation strategies for this vulnerability should focus on immediate firmware updates from Foscam to address the buffer overflow condition through proper input validation and bounds checking mechanisms. Network segmentation and access control measures should be implemented to limit direct network access to the affected cameras, while monitoring systems should be deployed to detect anomalous network traffic patterns indicative of exploitation attempts. Security professionals should also consider implementing network intrusion detection systems with signatures specific to this vulnerability and ensure that all networked devices undergo regular security assessments to identify similar weaknesses in other networked appliances. The vulnerability aligns with CWE-121 for unsafe buffer access and represents a significant risk under ATT&CK framework category T1071 for application layer protocol usage, particularly when considering the potential for lateral movement through compromised surveillance infrastructure.