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CVE-2015-7713

5.0 · MEDIUM

OpenStack Compute (Nova) before 2014.2.4 (juno) and 2015.1.x before 2015.1.2 (kilo) do not properly apply security group changes, which allows remote attackers to bypass intended restriction by lev…

Published Oct 29, 2015openstackCWE-254EPSS 3.70%

Overview

CVE-2015-7713 is a medium-severity vulnerability affecting openstack nova. It was published on October 29, 2015 and has a CVSS 2.0 base score of 5.0 (MEDIUM).

This vulnerability has a CVSS 2.0 base score of 5.0, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

OpenStack Compute (Nova) before 2014.2.4 (juno) and 2015.1.x before 2015.1.2 (kilo) do not properly apply security group changes, which allows remote attackers to bypass intended restriction by leveraging an instance that was running when the change was made.

Remediation

Check the references section for vendor advisories and patches from openstack. Update nova to the latest patched version. 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.

Affected products

VendorProductVersionsStatus
openstacknova>= 2014.2, < 2014.2.4Affected

References

Refrhn.redhat.com/errata/RHSA-2015-2684.htmlRefwww.securityfocus.com/bid/76960Refaccess.redhat.com/errata/RHSA-2015:2673Refbugs.launchpad.net/nova/+bug/1491307Refbugs.launchpad.net/nova/+bug/1492961Refsecurity.openstack.org/ossa/OSSA-2015-021.htmlRefrhn.redhat.com/errata/RHSA-2015-2684.htmlRefwww.securityfocus.com/bid/76960Refaccess.redhat.com/errata/RHSA-2015:2673Refbugs.launchpad.net/nova/+bug/1491307

How CyberStrike helps

Frequently asked questions

What is CVE-2015-7713?

CVE-2015-7713 is a medium-severity vulnerability affecting openstack nova. It was published on October 29, 2015 and has a CVSS 2.0 base score of 5.0 (MEDIUM).

How severe is CVE-2015-7713?

This vulnerability has a CVSS 2.0 base score of 5.0, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2015-7713?

Check the references section for vendor advisories and patches from openstack. Update nova to the latest patched version. 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-2015-7713?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2015-7713 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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