CVE-2021-32575 : What You Need to Know
Discover the details of CVE-2021-32575, a vulnerability in HashiCorp Nomad allowing ARP spoofing. Learn about impact, affected versions, and mitigation steps to secure your systems.
This article provides detailed information about CVE-2021-32575, a vulnerability found in HashiCorp Nomad and Nomad Enterprise up to version 1.0.4 that allows ARP spoofing from other bridged tasks on the same node. It was fixed in versions 0.12.12, 1.0.5, and 1.1.0 RC1.
Understanding CVE-2021-32575
This section delves into the specifics of the CVE-2021-32575 vulnerability.
What is CVE-2021-32575?
HashiCorp Nomad and Nomad Enterprise up to version 1.0.4 have a vulnerability where the bridge networking mode allows ARP spoofing from other bridged tasks on the same node.
The Impact of CVE-2021-32575
The vulnerability could be exploited to perform ARP spoofing attacks within the network, potentially leading to unauthorized access and data interception.
Technical Details of CVE-2021-32575
This section provides technical details related to CVE-2021-32575.
Vulnerability Description
CVE-2021-32575 in HashiCorp Nomad and Nomad Enterprise allows ARP spoofing from other bridged tasks on the same node, posing a security risk to affected systems.
Affected Systems and Versions
The vulnerability impacts HashiCorp Nomad and Nomad Enterprise versions up to 1.0.4.
Exploitation Mechanism
Attackers can exploit this vulnerability by leveraging the bridge networking mode to conduct ARP spoofing attacks on the same node through bridged tasks.
Mitigation and Prevention
In this section, we explore steps to mitigate the risks associated with CVE-2021-32575.
Immediate Steps to Take
Users are advised to update their HashiCorp Nomad and Nomad Enterprise installations to fixed versions, such as 0.12.12, 1.0.5, and 1.1.0 RC1, to prevent exploitation of this vulnerability.
Long-Term Security Practices
Implementing network segmentation, access control policies, and regularly monitoring network traffic can enhance security posture and prevent ARP spoofing attacks.
Patching and Updates
Stay informed about security updates and patches released by HashiCorp. Regularly applying patches to the Nomad software can help in addressing known vulnerabilities effectively.