CVE-2018-8020 Information

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.

CVSS Vector

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Reference

http://mail-archives.us.apache.org/mod_mbox/www-announce/201807.mbox/3C20180721101944.GA45239@minotaur.apache.org3E http://www.securityfocus.com/bid/104934 http://www.securitytracker.com/id/1041507 https://access.redhat.com/errata/RHSA-2018:2469 https://access.redhat.com/errata/RHSA-2018:2470 https://lists.apache.org/thread.html/ba661b0edd913b39ff129a32d855620dd861883ade05fd88a8ce517d@3Cdev.tomcat.apache.org3E https://lists.apache.org/thread.html/f8e0814e11c7f21f42224b6de111cb3f5e5ab5c15b78924c516d4ec2@3Cdev.tomcat.apache.org3E https://lists.apache.org/thread.html/re3b72cbb13e1dfe85c4a06959a3b6ca6d939b407ecca80db12b54220@3Cdev.tomcat.apache.org3E https://lists.apache.org/thread.html/rf8e8c091182b45daa50d3557cad9b10bb4198e3f08cf8f1c66a1b08d@3Cdev.tomcat.apache.org3E https://lists.debian.org/debian-lts-announce/2018/08/msg00023.html

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

NONE

Base Severity

7.4