CVE-2018-20487 : Vulnerability Insights and Analysis

A vulnerability has been identified in the firewall3 component within Inteno IOPSYS versions 1.0 through 3.16. The attacker can exploit this issue by introducing a harmful script or binary through a JSON-RPC method call.

Understanding CVE-2018-20487

This CVE involves a security flaw in the firewall3 component of Inteno IOPSYS versions 1.0 through 3.16.

What is CVE-2018-20487?

CVE-2018-20487 is a vulnerability in Inteno IOPSYS versions 1.0 through 3.16 that allows an attacker to execute a malicious script or binary with root privileges by manipulating firewall rules through a JSON-RPC method call.

The Impact of CVE-2018-20487

The exploitation of this vulnerability can lead to unauthorized execution of harmful scripts or binaries with elevated privileges, potentially compromising the security and integrity of the affected systems.

Technical Details of CVE-2018-20487

This section provides technical details regarding the vulnerability.

Vulnerability Description

The vulnerability in the firewall3 component of Inteno IOPSYS versions 1.0 through 3.16 allows an attacker to execute a malicious script or binary with root privileges by manipulating firewall rules through a JSON-RPC method call.

Affected Systems and Versions

Inteno IOPSYS versions 1.0 through 3.16

Exploitation Mechanism

To exploit this vulnerability, the attacker needs to initiate a JSON-RPC method call to introduce a firewall rule by specifying an "include" and allocating the "path" parameter to a harmful script or binary. Once the firewall changes are confirmed, the script or binary is executed with root privileges.

Mitigation and Prevention

Protecting systems from CVE-2018-20487 requires immediate actions and long-term security practices.

Immediate Steps to Take

Apply security patches provided by the vendor promptly.
Monitor network traffic for any suspicious activity related to firewall rule changes.

Long-Term Security Practices

Implement network segmentation to limit the impact of potential attacks.
Regularly update and patch all software and firmware to address security vulnerabilities.
Conduct security audits and penetration testing to identify and mitigate potential risks.
Educate users and administrators about safe computing practices and the importance of cybersecurity.
Utilize intrusion detection and prevention systems to monitor and block malicious activities.
Stay informed about the latest security threats and best practices in cybersecurity.

Patching and Updates

Ensure that all affected systems are updated with the latest patches and security updates provided by Inteno IOPSYS to mitigate the CVE-2018-20487 vulnerability.