CVE-2019-3895 : What You Need to Know

A vulnerability in the Octavia service of Red Hat OpenStack Platform Director allowed remote attackers to execute new amphorae using any image, potentially leading to the use of malicious content.

Understanding CVE-2019-3895

What is CVE-2019-3895?

An access control flaw in the Octavia service of Red Hat OpenStack Platform Director enabled attackers to spawn new amphorae with arbitrary images, granting them the ability to upload and utilize malicious content.

The Impact of CVE-2019-3895

The vulnerability had a CVSS base score of 5.5, categorizing it as a medium severity issue. Attackers could exploit this flaw to execute unauthorized amphorae, posing a risk of deploying compromised images within the system.

Technical Details of CVE-2019-3895

Vulnerability Description

The flaw in the Octavia service allowed attackers to trigger the creation of new amphorae using any image, potentially leading to the deployment of malicious content.

Affected Systems and Versions

Product: openstack-tripleo-common
Vendor: Red Hat
Affected Version: n/a

Exploitation Mechanism

Attack Complexity: Low
Attack Vector: Network
Privileges Required: Low
User Interaction: Required
Scope: Unchanged
Confidentiality Impact: Low
Integrity Impact: Low
Availability Impact: Low

Mitigation and Prevention

Immediate Steps to Take

Apply the patches provided by Red Hat to address the vulnerability.
Monitor for any unauthorized amphorae creation or image uploads.
Restrict network access to critical systems to mitigate remote exploitation.

Long-Term Security Practices

Regularly update and patch all software components within the OpenStack environment.
Conduct security assessments and audits to identify and remediate potential vulnerabilities.

Patching and Updates

Red Hat has released security advisories (RHSA-2019:1683 and RHSA-2019:1742) containing patches to fix the vulnerability.