CVE-2020-18685 : What You Need to Know

Floodlight through 1.2 has poor input validation in checkFlow in StaticFlowEntryPusherResource.java due to unchecked prerequisites related to TCP or UDP ports, or group or table IDs.

Understanding CVE-2020-18685

This CVE involves a vulnerability in Floodlight through version 1.2 that exposes systems to risks due to inadequate input validation.

What is CVE-2020-18685?

CVE-2020-18685 highlights a security flaw in Floodlight's checkFlow function, allowing potential exploitation through unchecked conditions related to TCP or UDP ports, as well as group or table IDs.

The Impact of CVE-2020-18685

The vulnerability could be exploited by malicious actors to bypass security measures, potentially leading to unauthorized access, data breaches, or denial of service attacks.

Technical Details of CVE-2020-18685

This section delves into the specific technical aspects of the CVE.

Vulnerability Description

The vulnerability arises from inadequate input validation in the checkFlow function within StaticFlowEntryPusherResource.java in Floodlight versions up to 1.2.

Affected Systems and Versions

Product: Not applicable
Vendor: Not applicable
Versions affected: All versions up to 1.2

Exploitation Mechanism

The vulnerability can be exploited by manipulating TCP or UDP ports, group IDs, or table IDs to bypass security checks and potentially execute unauthorized actions.

Mitigation and Prevention

Protecting systems from CVE-2020-18685 requires immediate actions and long-term security practices.

Immediate Steps to Take

Implement network segmentation to limit the impact of potential attacks.
Monitor network traffic for any suspicious activities related to TCP or UDP ports.
Apply strict firewall rules to control traffic flow.

Long-Term Security Practices

Regularly update Floodlight to the latest secure version.
Conduct security assessments and penetration testing to identify and address vulnerabilities.
Educate users and administrators on secure coding practices and the importance of input validation.

Patching and Updates

Stay informed about security advisories and patches released by Floodlight.
Promptly apply patches and updates to ensure systems are protected against known vulnerabilities.