CVE-2017-2876 Explained : Impact and Mitigation

The Foscam C1 Indoor HD Camera is vulnerable to a buffer overflow in its Multi-Camera interface, allowing attackers to overwrite arbitrary data.

Understanding CVE-2017-2876

What is CVE-2017-2876?

CVE-2017-2876 is a vulnerability in the Foscam C1 Indoor HD Camera's application firmware 2.52.2.43, enabling a buffer overflow via a specially crafted request to port 10000.

The Impact of CVE-2017-2876

The vulnerability has a CVSS base score of 8.8 (High severity) with high impacts on confidentiality, integrity, and availability.

Technical Details of CVE-2017-2876

Vulnerability Description

The flaw allows remote attackers to trigger a buffer overflow by sending a specific request to port 10000.

Affected Systems and Versions

Product: Foscam C1 Indoor HD Camera
Vendor: Foscam
Vulnerable Version: Foscam Indoor IP Camera C1 Series.System Firmware Version: 1.9.3.18.Application Firmware Version: 2.52.2.43.Plug-In Version: 3.3.0.26

Exploitation Mechanism

Attack Complexity: Low
Attack Vector: Network
Privileges Required: Low
User Interaction: None
Scope: Unchanged
Exploitation can lead to a buffer overflow, compromising data integrity and availability.

Mitigation and Prevention

Immediate Steps to Take

Disable port 10000 or restrict access to it.
Apply vendor-supplied patches or firmware updates promptly.

Long-Term Security Practices

Regularly update firmware and software to address security vulnerabilities.
Implement network segmentation to limit the impact of potential attacks.

Patching and Updates

Stay informed about security advisories from Foscam and apply patches as soon as they are available.