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CVE-2018-8020

7.4 · HIGH

Apache Tomcat Native 1.2.0 to 1.2.16 and 1.1.23 to 1.1.34 has a flaw that does not properly check OCSP pre-produced responses, which are lists (multiple entries) of certificate statuses.

Published Jul 31, 2018CWE-295EPSS 4.15%

Overview

CVE-2018-8020 is a high-severity vulnerability. It was published on July 31, 2018 and has a CVSS 3.0 base score of 7.4 (HIGH).

This vulnerability has a CVSS 3.0 base score of 7.4, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

Apache Tomcat Native 1.2.0 to 1.2.16 and 1.1.23 to 1.1.34 has a flaw that does not properly check OCSP pre-produced responses, which are lists (multiple entries) of certificate statuses. Subsequently, revoked client certificates may not be properly identified, allowing for users to authenticate with revoked certificates to connections that require mutual TLS. Users not using OCSP checks are not affected by this vulnerability.

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

Refmail-archives.us.apache.org/mod_mbox/www-announce/201807.mbox/%3C20180721101944.GA45239%40minotaur.apache.org%3ERefwww.securityfocus.com/bid/104934Refwww.securitytracker.com/id/1041507Refaccess.redhat.com/errata/RHSA-2018:2469Refaccess.redhat.com/errata/RHSA-2018:2470Reflists.apache.org/thread.html/ba661b0edd913b39ff129a32d855620dd861883ade05fd88a8ce517d%40%3Cdev.tomcat.apache.org%3EReflists.apache.org/thread.html/f8e0814e11c7f21f42224b6de111cb3f5e5ab5c15b78924c516d4ec2%40%3Cdev.tomcat.apache.org%3EReflists.apache.org/thread.html/r831e0548fad736a98140d0b3b7dc575af0c50faea0b266434ba813cc%40%3Cdev.rocketmq.apache.org%3EReflists.apache.org/thread.html/rb25b42f666d2cac5e6e6b3f771faf60d1f1aa58073dcdd8db14edf8a%40%3Cdev.rocketmq.apache.org%3EReflists.apache.org/thread.html/rcddf723a4b4117f8ed6042e9ac25e8c5110a617bab77694b61b14833%40%3Cdev.rocketmq.apache.org%3E

How CyberStrike helps

Frequently asked questions

What is CVE-2018-8020?

CVE-2018-8020 is a high-severity vulnerability. It was published on July 31, 2018 and has a CVSS 3.0 base score of 7.4 (HIGH).

How severe is CVE-2018-8020?

This vulnerability has a CVSS 3.0 base score of 7.4, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2018-8020?

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-2018-8020?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2018-8020 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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