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CVE-2017-2623

5.3 · MEDIUM

It was discovered that rpm-ostree and rpm-ostree-client before 2017.3 fail to properly check GPG signatures on packages when doing layering.

Published Jul 27, 2018CWE-295EPSS 1.01%

Overview

CVE-2017-2623 is a medium-severity vulnerability. It was published on July 27, 2018 and has a CVSS 3.0 base score of 5.3 (MEDIUM).

This vulnerability has a CVSS 3.0 base score of 5.3, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

It was discovered that rpm-ostree and rpm-ostree-client before 2017.3 fail to properly check GPG signatures on packages when doing layering. Packages with unsigned or badly signed content could fail to be rejected as expected. This issue is partially mitigated on RHEL Atomic Host, where certificate pinning is used by default.

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/96558Refaccess.redhat.com/errata/RHSA-2017:0444Refbugzilla.redhat.com/show_bug.cgi?id=CVE-2017-2623Refwww.securityfocus.com/bid/96558Refaccess.redhat.com/errata/RHSA-2017:0444Refbugzilla.redhat.com/show_bug.cgi?id=CVE-2017-2623

How CyberStrike helps

Frequently asked questions

What is CVE-2017-2623?

CVE-2017-2623 is a medium-severity vulnerability. It was published on July 27, 2018 and has a CVSS 3.0 base score of 5.3 (MEDIUM).

How severe is CVE-2017-2623?

This vulnerability has a CVSS 3.0 base score of 5.3, 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-2017-2623?

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-2017-2623?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2017-2623 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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