CVE-2021-33036

Apache Hadoop Privilege escalation vulnerability

Description

In Apache Hadoop 2.2.0 to 2.10.1, 3.0.0-alpha1 to 3.1.4, 3.2.0 to 3.2.2, and 3.3.0 to 3.3.1, a user who can escalate to yarn user can possibly run arbitrary commands as root user. Users should upgrade to Apache Hadoop 2.10.2, 3.2.3, 3.3.2 or higher.

Remediation

Workaround:

  • If you are using the affected version of Apache Hadoop and some users can escalate to yarn user and cannot escalate to root user, remove the permission to escalate to yarn user from them.

Categories

8.8
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 1.31% Top 25%
Vendor Advisory apache.org
Affected: Apache Software Foundation Apache Hadoop
Published at:
Updated at:

References

Frequently Asked Questions

What is the severity of CVE-2021-33036?
CVE-2021-33036 has been scored as a high severity vulnerability.
How to fix CVE-2021-33036?
As a workaround for remediating CVE-2021-33036: If you are using the affected version of Apache Hadoop and some users can escalate to yarn user and cannot escalate to root user, remove the permission to escalate to yarn user from them.
Is CVE-2021-33036 being actively exploited in the wild?
It is possible that CVE-2021-33036 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-33036?
CVE-2021-33036 affects Apache Software Foundation Apache Hadoop.
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