CVE-2018-1080 Auth bypass in pki-core

High 7.5 Published Updated

Reversed ACL rule processing in Dogtag PKI allows privilege escalation when configured to evaluate allow rules before deny rules.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
Available

What is CVE-2018-1080?

CVE-2018-1080 is a high-severity authentication bypass vulnerability in [UNKNOWN] pki-core, published on 2 Jul 2018. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

Dogtag PKI, through version 10.6.1, has a vulnerability in AAclAuthz.java that, under certain configurations, causes the application of ACL allow and deny rules to be reversed. If a server is configured to process allow rules before deny rules (authz.evaluateOrder=allow,deny), then allow rules will deny access and deny rules will grant access. This may result in an escalation of privileges or have other unintended consequences.

Weakness: CWE-284

Which versions are affected by CVE-2018-1080?

It affects 1 product.

Linux distribution packages (40)
pki-base Red Hat:enterprise_linux:7::clientAll versions0:10.5.1-13.1.el7_5
pki-base-java Red Hat:enterprise_linux:7::clientAll versions0:10.5.1-13.1.el7_5
pki-ca Red Hat:enterprise_linux:7::clientAll versions0:10.5.1-13.1.el7_5
pki-core Red Hat:enterprise_linux:7::clientAll versions0:10.5.1-13.1.el7_5
pki-core-debuginfo Red Hat:enterprise_linux:7::clientAll versions0:10.5.1-13.1.el7_5
pki-javadoc Red Hat:enterprise_linux:7::clientAll versions0:10.5.1-13.1.el7_5
pki-kra Red Hat:enterprise_linux:7::clientAll versions0:10.5.1-13.1.el7_5
pki-server Red Hat:enterprise_linux:7::clientAll versions0:10.5.1-13.1.el7_5
pki-symkey Red Hat:enterprise_linux:7::clientAll versions0:10.5.1-13.1.el7_5
pki-tools Red Hat:enterprise_linux:7::clientAll versions0:10.5.1-13.1.el7_5
pki-base Red Hat:enterprise_linux:7::computenodeAll versions0:10.5.1-13.1.el7_5
pki-base-java Red Hat:enterprise_linux:7::computenodeAll versions0:10.5.1-13.1.el7_5
pki-ca Red Hat:enterprise_linux:7::computenodeAll versions0:10.5.1-13.1.el7_5
pki-core Red Hat:enterprise_linux:7::computenodeAll versions0:10.5.1-13.1.el7_5
pki-core-debuginfo Red Hat:enterprise_linux:7::computenodeAll versions0:10.5.1-13.1.el7_5
pki-javadoc Red Hat:enterprise_linux:7::computenodeAll versions0:10.5.1-13.1.el7_5
pki-kra Red Hat:enterprise_linux:7::computenodeAll versions0:10.5.1-13.1.el7_5
pki-server Red Hat:enterprise_linux:7::computenodeAll versions0:10.5.1-13.1.el7_5
pki-symkey Red Hat:enterprise_linux:7::computenodeAll versions0:10.5.1-13.1.el7_5
pki-tools Red Hat:enterprise_linux:7::computenodeAll versions0:10.5.1-13.1.el7_5
pki-base Red Hat:enterprise_linux:7::serverAll versions0:10.5.1-13.1.el7_5
pki-base-java Red Hat:enterprise_linux:7::serverAll versions0:10.5.1-13.1.el7_5
pki-ca Red Hat:enterprise_linux:7::serverAll versions0:10.5.1-13.1.el7_5
pki-core Red Hat:enterprise_linux:7::serverAll versions0:10.5.1-13.1.el7_5
pki-core-debuginfo Red Hat:enterprise_linux:7::serverAll versions0:10.5.1-13.1.el7_5
pki-javadoc Red Hat:enterprise_linux:7::serverAll versions0:10.5.1-13.1.el7_5
pki-kra Red Hat:enterprise_linux:7::serverAll versions0:10.5.1-13.1.el7_5
pki-server Red Hat:enterprise_linux:7::serverAll versions0:10.5.1-13.1.el7_5
pki-symkey Red Hat:enterprise_linux:7::serverAll versions0:10.5.1-13.1.el7_5
pki-tools Red Hat:enterprise_linux:7::serverAll versions0:10.5.1-13.1.el7_5
pki-base Red Hat:enterprise_linux:7::workstationAll versions0:10.5.1-13.1.el7_5
pki-base-java Red Hat:enterprise_linux:7::workstationAll versions0:10.5.1-13.1.el7_5
pki-ca Red Hat:enterprise_linux:7::workstationAll versions0:10.5.1-13.1.el7_5
pki-core Red Hat:enterprise_linux:7::workstationAll versions0:10.5.1-13.1.el7_5
pki-core-debuginfo Red Hat:enterprise_linux:7::workstationAll versions0:10.5.1-13.1.el7_5
pki-javadoc Red Hat:enterprise_linux:7::workstationAll versions0:10.5.1-13.1.el7_5
pki-kra Red Hat:enterprise_linux:7::workstationAll versions0:10.5.1-13.1.el7_5
pki-server Red Hat:enterprise_linux:7::workstationAll versions0:10.5.1-13.1.el7_5
pki-symkey Red Hat:enterprise_linux:7::workstationAll versions0:10.5.1-13.1.el7_5
pki-tools Red Hat:enterprise_linux:7::workstationAll versions0:10.5.1-13.1.el7_5

Products include Dogtagpki Dogtagpki.

How do I fix CVE-2018-1080?

Apply the vendor's patch.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2018-1080 being exploited?

There is no known exploitation of CVE-2018-1080 in the wild and no public exploit code.

Sources

Also known as DEBIAN-CVE-2018-1080, GHSA-h277-5r6v-m3gv, RHSA-2018:1979, UBUNTU-CVE-2018-1080.

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