CVE-2018-1067 Improper Neutralization of CRLF Sequences in HTTP Headers in Undertow

Medium 5.4 Published Updated

Attackers can inject arbitrary HTTP headers or split responses in Undertow due to insufficient input sanitization, potentially bypassing security controls.

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-2018-1067?

CVE-2018-1067 is a medium-severity vulnerability in Redhat Jboss Enterprise Application Platform, published on 21 May 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

In Undertow before versions 7.1.2.CR1, 7.1.2.GA it was found that the fix for CVE-2016-4993 was incomplete and Undertow web server is vulnerable to the injection of arbitrary HTTP headers, and also response splitting, due to insufficient sanitization and validation of user input before the input is used as part of an HTTP header value.

Weakness: CWE-113

Which versions are affected by CVE-2018-1067?

2 open source packages ship an affected version, including org.jboss.eap:wildfly-undertow. It affects 3 products.

PackageAffectedFixed in
org.jboss.eap:wildfly-undertow MavenAll versions7.1.2.GA
org.jboss.eap:wildfly-undertow MavenAll versions7.1.2.GA

Products include Redhat Jboss Enterprise Application Platform, Redhat Undertow, Redhat Virtualization Host.

How do I fix CVE-2018-1067?

Upgrade org.jboss.eap:wildfly-undertow to 7.1.2.GA or later.

Is CVE-2018-1067 being exploited?

There is no known exploitation of CVE-2018-1067 in the wild and no public exploit code.

All Redhat Jboss Enterprise Application Platform vulnerabilities

Sources

Also known as DEBIAN-CVE-2018-1067, GHSA-47mp-rq2x-wjf2, UBUNTU-CVE-2018-1067.

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