CVE-2017-15139 : Exploit Details and Defense Strategies

An issue has been discovered in openstack-cinder versions up to and including Queens, potentially exposing sensitive information between different tenants.

Understanding CVE-2017-15139

This CVE involves a vulnerability in openstack-cinder that affects specific storage volume setups, potentially leading to data exposure.

What is CVE-2017-15139?

The vulnerability in openstack-cinder up to and including Queens allows newly created volumes in certain storage volume configurations to retain previous data, particularly impacting ScaleIO volumes using thin volumes and zero padding.

The Impact of CVE-2017-15139

The vulnerability could result in the exposure of sensitive information between different tenants.

Technical Details of CVE-2017-15139

This section provides detailed technical information about the CVE.

Vulnerability Description

The vulnerability allows newly created volumes in specific storage volume setups to retain previous data, potentially exposing sensitive information.

Affected Systems and Versions

Product: openstack-cinder
Vendor: OpenStack Foundation
Versions affected: up to and including Queens

Exploitation Mechanism

Attack Complexity: HIGH
Attack Vector: LOCAL
Confidentiality Impact: HIGH
Integrity Impact: NONE

Mitigation and Prevention

Protecting systems from CVE-2017-15139 is crucial to prevent data exposure.

Immediate Steps to Take

Update to a patched version of openstack-cinder to mitigate the vulnerability.
Monitor and restrict access to sensitive information stored in affected volumes.

Long-Term Security Practices

Regularly review and update storage volume configurations to enhance security.
Implement access controls and encryption mechanisms to safeguard sensitive data.

Patching and Updates

Apply security patches provided by OpenStack Foundation to address the vulnerability.