CVE-2020-13250 : What You Need to Know

HashiCorp Consul and Consul Enterprise had a vulnerability in their HTTP API and DNS caching feature that could lead to denial of service attacks. The issue was addressed in versions 1.6.6 and 1.7.4.

Understanding CVE-2020-13250

This CVE involves a vulnerability in HashiCorp Consul and Consul Enterprise that could be exploited for denial of service attacks.

What is CVE-2020-13250?

HashiCorp Consul and Consul Enterprise versions with specific features were susceptible to a denial of service vulnerability.

The Impact of CVE-2020-13250

The vulnerability could allow malicious actors to disrupt the availability of services provided by Consul and Consul Enterprise, potentially causing downtime and service interruptions.

Technical Details of CVE-2020-13250

This section provides more technical insights into the CVE.

Vulnerability Description

The vulnerability existed in the HTTP API and DNS caching feature of HashiCorp Consul and Consul Enterprise, making them vulnerable to denial of service attacks.

Affected Systems and Versions

Affected versions: Introduced in 1.2.0 and 1.4.3
Fixed versions: 1.6.6 and 1.7.4

Exploitation Mechanism

Attackers could exploit this vulnerability by sending specially crafted requests to the affected HTTP API and DNS caching feature, leading to service disruption.

Mitigation and Prevention

To address CVE-2020-13250, follow these mitigation steps:

Immediate Steps to Take

Update HashiCorp Consul and Consul Enterprise to versions 1.6.6 or 1.7.4 to eliminate the vulnerability.
Monitor network traffic for any suspicious activity that could indicate exploitation of the vulnerability.

Long-Term Security Practices

Regularly update and patch software to ensure the latest security fixes are in place.
Implement network segmentation and access controls to limit the impact of potential attacks.

Patching and Updates

Apply patches provided by HashiCorp promptly to address security vulnerabilities and ensure the systems are secure.