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CVE-2017-8438

8.8 · HIGH

Elastic X-Pack Security versions 5.0.0 to 5.4.0 contain a privilege escalation bug in the run_as functionality.

Published Jun 5, 2017CWE-284EPSS 1.03%

Overview

CVE-2017-8438 is a high-severity vulnerability. It was published on June 5, 2017 and has a CVSS 3.0 base score of 8.8 (HIGH).

This vulnerability has a CVSS 3.0 base score of 8.8, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical description

Elastic X-Pack Security versions 5.0.0 to 5.4.0 contain a privilege escalation bug in the run_as functionality. This bug prevents transitioning into the specified user specified in a run_as request. If a role has been created using a template that contains the _user properties, the behavior of run_as will be incorrect. Additionally if the run_as user specified does not exist, the transition will not happen.

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

Refdiscuss.elastic.co/t/elastic-stack-5-4-1-and-5-3-3-security-updates/87952Refwww.elastic.co/blog/elasticsearch-5-4-1-and-5-3-3-releasedRefwww.elastic.co/community/securityRefdiscuss.elastic.co/t/elastic-stack-5-4-1-and-5-3-3-security-updates/87952Refwww.elastic.co/blog/elasticsearch-5-4-1-and-5-3-3-releasedRefwww.elastic.co/community/security

How CyberStrike helps

Frequently asked questions

What is CVE-2017-8438?

CVE-2017-8438 is a high-severity vulnerability. It was published on June 5, 2017 and has a CVSS 3.0 base score of 8.8 (HIGH).

How severe is CVE-2017-8438?

This vulnerability has a CVSS 3.0 base score of 8.8, 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-2017-8438?

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-2017-8438?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2017-8438 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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