CVE-2018-6831 Explained : Impact and Mitigation

Foscam Cameras are affected by a vulnerability that allows remote authenticated users to execute arbitrary commands. This CVE highlights the risk associated with the setSystemTime function in various Foscam Camera models.

Understanding CVE-2018-6831

This CVE identifies a critical security issue in Foscam Cameras that could be exploited by remote authenticated users.

What is CVE-2018-6831?

The vulnerability in the setSystemTime function of Foscam Cameras allows unauthorized execution of arbitrary commands by exploiting a semicolon in the ntpServer argument.

The Impact of CVE-2018-6831

The presence of this vulnerability enables remote authenticated users to execute unauthorized commands, posing a significant security risk to affected Foscam Camera users.

Technical Details of CVE-2018-6831

This section delves into the technical aspects of the CVE.

Vulnerability Description

The setSystemTime function in various Foscam Camera models is susceptible to remote authenticated users executing arbitrary commands by leveraging a semicolon in the ntpServer argument.

Affected Systems and Versions

Models affected include C1 Lite V3, C1 V3, FI9800P V3, FI9803P V4, FI9851P V3, and FI9853EP V2, among others.
Vulnerable firmware versions are specified for each affected model.

Exploitation Mechanism

The vulnerability arises from incomplete resolution to a previous CVE (CVE-2017-2849) and allows attackers to exploit the ntpServer argument to execute unauthorized commands.

Mitigation and Prevention

Protecting systems from CVE-2018-6831 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update Foscam Camera firmware to the latest version that addresses this vulnerability.
Implement strong authentication mechanisms to prevent unauthorized access.

Long-Term Security Practices

Regularly monitor security advisories from Foscam and apply patches promptly.
Conduct security assessments to identify and mitigate potential vulnerabilities.

Patching and Updates

Regularly check for firmware updates from Foscam and apply them to ensure the latest security fixes are in place.