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CVE-2015-7546

7.5 · HIGH

The identity service in OpenStack Identity (Keystone) before 2015.1.3 (Kilo) and 8.0.x before 8.0.2 (Liberty) and keystonemiddleware (formerly python-keystoneclient) before 1.5.4 (Kilo) and Liberty…

Published Feb 3, 2016CWE-522EPSS 2.00%

Overview

CVE-2015-7546 is a high-severity vulnerability. It was published on February 3, 2016 and has a CVSS 3.1 base score of 7.5 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical description

The identity service in OpenStack Identity (Keystone) before 2015.1.3 (Kilo) and 8.0.x before 8.0.2 (Liberty) and keystonemiddleware (formerly python-keystoneclient) before 1.5.4 (Kilo) and Liberty before 2.3.3 does not properly invalidate authorization tokens when using the PKI or PKIZ token providers, which allows remote authenticated users to bypass intended access restrictions and gain access to cloud resources by manipulating byte fields within a revoked token.

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.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.htmlRefwww.securityfocus.com/bid/80498Refbugs.launchpad.net/keystone/+bug/1490804Refsecurity.openstack.org/ossa/OSSA-2016-005.htmlRefwiki.openstack.org/wiki/OSSN/OSSN-0062Refwww.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.htmlRefwww.securityfocus.com/bid/80498Refbugs.launchpad.net/keystone/+bug/1490804Refsecurity.openstack.org/ossa/OSSA-2016-005.htmlRefwiki.openstack.org/wiki/OSSN/OSSN-0062

How CyberStrike helps

Frequently asked questions

What is CVE-2015-7546?

CVE-2015-7546 is a high-severity vulnerability. It was published on February 3, 2016 and has a CVSS 3.1 base score of 7.5 (HIGH).

How severe is CVE-2015-7546?

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2015-7546?

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-2015-7546?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2015-7546 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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