Vulnerabilities
Misconfiguration
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CVE Vulnerabilities

CVE-2018-8020

Improper Certificate Validation

Published: Jul 31, 2018 | Modified: Nov 21, 2024
CVSS 3.x
7.4
HIGH
Source:
NVD
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
CVSS 2.x
4.3 MEDIUM
AV:N/AC:M/Au:N/C:N/I:P/A:N
RedHat/V2
RedHat/V3
7.1 IMPORTANT
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N
Ubuntu
MEDIUM
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Additional information
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2018-8020
CWEhttps://cwe.mitre.org/data/definitions/295.html

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.

Weakness

The product does not validate, or incorrectly validates, a certificate.

Affected Software

NameVendorStart VersionEnd Version
Debian_linuxDebian8.0 (including)8.0 (including)
Red Hat JBoss Web Server 3.1RedHattomcat-native*
Red Hat JBoss Web Server 3 for RHEL 6RedHattomcat7-0:7.0.70-27.ep7.el6*
Red Hat JBoss Web Server 3 for RHEL 6RedHattomcat8-0:8.0.36-31.ep7.el6*
Red Hat JBoss Web Server 3 for RHEL 6RedHattomcat-native-0:1.2.17-17.redhat_17.ep7.el6*
Red Hat JBoss Web Server 3 for RHEL 7RedHattomcat7-0:7.0.70-27.ep7.el7*
Red Hat JBoss Web Server 3 for RHEL 7RedHattomcat8-0:8.0.36-31.ep7.el7*
Red Hat JBoss Web Server 3 for RHEL 7RedHattomcat-native-0:1.2.17-17.redhat_17.ep7.el7*
Tomcat-nativeUbuntuesm-apps/xenial*
Tomcat-nativeUbuntutrusty*
Tomcat-nativeUbuntuupstream*
Tomcat-nativeUbuntuxenial*

Potential Mitigations

References

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