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CVE-2017-2637

9.9 · CRITICAL

A design flaw issue was found in the Red Hat OpenStack Platform director use of TripleO to enable libvirtd based live-migration.

Published Jul 26, 2018CWE-306EPSS 4.60%

Overview

CVE-2017-2637 is a critical-severity vulnerability. It was published on July 26, 2018 and has a CVSS 3.0 base score of 9.9 (CRITICAL).

This vulnerability has a CVSS 3.0 base score of 9.9, rated CRITICAL. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical description

A design flaw issue was found in the Red Hat OpenStack Platform director use of TripleO to enable libvirtd based live-migration. Libvirtd is deployed by default (by director) listening on 0.0.0.0 (all interfaces) with no-authentication or encryption. Anyone able to make a TCP connection to any compute host IP address, including 127.0.0.1, other loopback interface addresses, or in some cases possibly addresses that have been exposed beyond the management interface, could use this to open a virsh session to the libvirtd instance and gain control of virtual machine instances or possibly take over the host.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refwww.securityfocus.com/bid/98576Refaccess.redhat.com/errata/RHSA-2017:1242Refaccess.redhat.com/errata/RHSA-2017:1504Refaccess.redhat.com/errata/RHSA-2017:1537Refaccess.redhat.com/errata/RHSA-2017:1546Refaccess.redhat.com/solutions/3022771Refbugzilla.redhat.com/show_bug.cgi?id=CVE-2017-2637Refwiki.openstack.org/wiki/OSSN/OSSN-0007Refwww.securityfocus.com/bid/98576Refaccess.redhat.com/errata/RHSA-2017:1242

How CyberStrike helps

Frequently asked questions

What is CVE-2017-2637?

CVE-2017-2637 is a critical-severity vulnerability. It was published on July 26, 2018 and has a CVSS 3.0 base score of 9.9 (CRITICAL).

How severe is CVE-2017-2637?

This vulnerability has a CVSS 3.0 base score of 9.9, rated CRITICAL. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2017-2637?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2017-2637?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2017-2637 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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