CVE-2018-8023 Moderate severity vulnerability that affects org.apache.mesos:mesos

Medium 5.9 Published Updated

Timing attack in JWT validation allows attackers to reveal HMAC values, potentially bypassing authentication in Apache Mesos.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2018-8023?

CVE-2018-8023 is a medium-severity vulnerability in Apache Mesos, published on 21 Sep 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Apache Mesos can be configured to require authentication to call the Executor HTTP API using JSON Web Token (JWT). In Apache Mesos versions pre-1.4.2, 1.5.0, 1.5.1, 1.6.0 the comparison of the generated HMAC value against the provided signature in the JWT implementation used is vulnerable to a timing attack because instead of a constant-time string comparison routine a standard `==` operator has been used. A malicious actor can therefore abuse the timing difference of when the JWT validation function returns to reveal the correct HMAC value.

Weakness: CWE-200

Which versions are affected by CVE-2018-8023?

6 open source packages ship an affected version, including org.apache.mesos:mesos. It affects 1 product.

PackageAffectedFixed in
org.apache.mesos:mesos MavenAll versions1.4.2
org.apache.mesos:mesos MavenAll versions1.4.2
org.apache.mesos:mesos MavenFrom 1.5.01.5.2
org.apache.mesos:mesos MavenFrom 1.5.01.5.2
org.apache.mesos:mesos MavenFrom 1.6.01.6.1
org.apache.mesos:mesos MavenFrom 1.6.01.6.1

Products include Apache Mesos.

How do I fix CVE-2018-8023?

Upgrade org.apache.mesos:mesos to a fixed version for your release line: 1.4.2, 1.5.2 or 1.6.1.

Is CVE-2018-8023 being exploited?

There is no known exploitation of CVE-2018-8023 in the wild and no public exploit code.

Sources

Also known as GHSA-c8cc-p3j7-4c7f.

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