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CVE-2017-2879 : Exploit Details and Defense Strategies

Learn about CVE-2017-2879, a high-severity buffer overflow vulnerability in Foscam C1 Indoor HD Camera's UPnP implementation. Find out the impact, affected systems, and mitigation steps.

A vulnerability in the UPnP implementation of the Foscam C1 Indoor HD Camera can lead to a buffer overflow, allowing attackers to overwrite data within the same subnetwork.

Understanding CVE-2017-2879

What is CVE-2017-2879?

An exploitable buffer overflow vulnerability exists in the Foscam C1 Indoor HD Camera's UPnP implementation, specifically in application firmware 2.52.2.43.

The Impact of CVE-2017-2879

The vulnerability has a CVSS base score of 7.5 (High) and can result in high impacts on confidentiality, integrity, and availability of the affected system.

Technical Details of CVE-2017-2879

Vulnerability Description

        The vulnerability arises from a buffer overflow in the UPnP implementation of the Foscam C1 Indoor HD Camera.

Affected Systems and Versions

        Product: Foscam C1 Indoor HD Camera
        Vendor: Foscam
        Versions: 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: High
        Attack Vector: Adjacent Network
        Privileges Required: None
        Exploitation involves sending a manipulated UPnP discovery response within the same subnetwork.

Mitigation and Prevention

Immediate Steps to Take

        Disable UPnP on the affected Foscam C1 Indoor HD Cameras.
        Implement network segmentation to limit exposure.

Long-Term Security Practices

        Regularly update firmware and security patches for the camera.
        Conduct security assessments to identify and address vulnerabilities.

Patching and Updates

        Apply patches provided by Foscam to address the buffer overflow vulnerability.

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