CVE-2018-11767 Improper Privilege Management in org.apache.hadoop:hadoop-main

High 7.4 Published Updated

Attackers can bypass access controls in Apache Hadoop KMS when non-default group mapping is used, leading to unauthorized access or privilege escalation.

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

What is CVE-2018-11767?

CVE-2018-11767 is a high-severity authentication bypass vulnerability in Apache Hadoop, published on 18 Mar 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

In Apache Hadoop 2.9.0 to 2.9.1, 2.8.3 to 2.8.4, 2.7.5 to 2.7.6, KMS blocking users or granting access to users incorrectly, if the system uses non-default groups mapping mechanisms.

Weakness: CWE-269

Which versions are affected by CVE-2018-11767?

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

PackageAffectedFixed in
org.apache.hadoop:hadoop-main MavenFrom 2.7.52.7.7
org.apache.hadoop:hadoop-main MavenFrom 2.7.52.7.7
org.apache.hadoop:hadoop-main MavenFrom 2.8.32.8.5
org.apache.hadoop:hadoop-main MavenFrom 2.8.32.8.5
org.apache.hadoop:hadoop-main MavenFrom 2.9.02.9.2
org.apache.hadoop:hadoop-main MavenFrom 2.9.02.9.2

Products include Apache Hadoop.

How do I fix CVE-2018-11767?

Upgrade org.apache.hadoop:hadoop-main to a fixed version for your release line: 2.7.7, 2.8.5 or 2.9.2.

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

Is CVE-2018-11767 being exploited?

There is no known exploitation of CVE-2018-11767 in the wild and no public exploit code.

Sources

Also known as GHSA-5cf4-jqwp-584g.

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