CVE-2018-19074 : Exploit Details and Defense Strategies

Foscam C2 and Opticam i5 devices are affected by a firewall issue that impacts specific firmware versions.

Understanding CVE-2018-19074

This CVE identifies a vulnerability in Foscam C2 and Opticam i5 devices related to firewall configuration.

What is CVE-2018-19074?

The issue affects Foscam C2 devices with System Firmware 1.11.1.8 and Application Firmware 2.72.1.32, as well as Opticam i5 devices with System Firmware 1.5.2.11 and Application Firmware 2.21.1.128. The firewall on these devices fails to block port 443 effectively and only partially restricts port 88.

The Impact of CVE-2018-19074

The vulnerability poses a security risk as the firewall inadequately blocks port 443 and partially restricts port 88, potentially exposing the devices to unauthorized access.

Technical Details of CVE-2018-19074

This section provides more in-depth technical insights into the CVE.

Vulnerability Description

The firewall issue on Foscam C2 and Opticam i5 devices allows port 443 to remain accessible and only partially restricts port 88, potentially compromising network security.

Affected Systems and Versions

Foscam C2 devices with System Firmware 1.11.1.8 and Application Firmware 2.72.1.32
Opticam i5 devices with System Firmware 1.5.2.11 and Application Firmware 2.21.1.128

Exploitation Mechanism

Attackers could exploit this vulnerability to gain unauthorized access to the affected devices due to the firewall's incomplete blocking of ports.

Mitigation and Prevention

Protecting systems from CVE-2018-19074 requires immediate actions and long-term security measures.

Immediate Steps to Take

Disable remote access if not required to minimize exposure to potential attacks.
Monitor network traffic for any suspicious activities targeting ports 443 and 88.

Long-Term Security Practices

Regularly update firmware to patch known vulnerabilities and enhance security measures.
Implement network segmentation to isolate IoT devices and prevent lateral movement in case of a breach.

Patching and Updates

Check for firmware updates from the device manufacturer to address the firewall issue and improve overall security.