CVE-2021-38364 : Exploit Details and Defense Strategies

An issue was discovered in ONOS 2.5.1 that allows a remote attacker to manipulate flow rules installed by intents, potentially leading to unauthorized modifications or deletions.

Understanding CVE-2021-38364

This section provides insight into the impact, technical details, and mitigation strategies for CVE-2021-38364.

What is CVE-2021-38364?

CVE-2021-38364 is a vulnerability in ONOS 2.5.1 that arises from an incorrect comparison of flow rules installed by intents, enabling a remote attacker to alter existing flow rules.

The Impact of CVE-2021-38364

The vulnerability allows unauthorized manipulation of flow rules related to intents, posing a risk of modifying or deleting critical rules within the ONOS network.

Technical Details of CVE-2021-38364

Explore the specifics of the vulnerability affecting ONOS 2.5.1.

Vulnerability Description

The flaw in ONOS 2.5.1 permits a remote attacker to install or remove intents, leading to the unauthorized modification or deletion of flow rules.

Affected Systems and Versions

All instances of ONOS 2.5.1 are affected by this vulnerability, potentially impacting network security and integrity.

Exploitation Mechanism

Remote threat actors can exploit this vulnerability to manipulate flow rules within the ONOS network, compromising its functionality and stability.

Mitigation and Prevention

Learn how to address and prevent the risks associated with CVE-2021-38364.

Immediate Steps to Take

Network administrators should monitor and restrict access to ONOS instances, limiting the ability to install or remove intents.

Long-Term Security Practices

Implement stringent access controls, routine security audits, and employee training to enhance overall network security and resilience.

Patching and Updates

Stay informed about security patches and updates released by ONOS to remediate the vulnerability and strengthen the network's defenses.