CVE-2021-25642

Apache Hadoop YARN remote code execution in ZKConfigurationStore of capacity scheduler

Description

ZKConfigurationStore which is optionally used by CapacityScheduler of Apache Hadoop YARN deserializes data obtained from ZooKeeper without validation. An attacker having access to ZooKeeper can run arbitrary commands as YARN user by exploiting this. Users should upgrade to Apache Hadoop 2.10.2, 3.2.4, 3.3.4 or later (containing YARN-11126) if ZKConfigurationStore is used.

Category

8.8
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.52%
Vendor Advisory apache.org
Affected: Apache Software Foundation Apache Hadoop
Published at:
Updated at:

References

Link Tags
https://lists.apache.org/thread/g6vf2h4wdgzzdgk91mqozhs58wotq150 mailing list vendor advisory
https://security.netapp.com/advisory/ntap-20221201-0003/ third party advisory

Frequently Asked Questions

What is the severity of CVE-2021-25642?
CVE-2021-25642 has been scored as a high severity vulnerability.
How to fix CVE-2021-25642?
To fix CVE-2021-25642, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-25642 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-25642 is being actively exploited. 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-2021-25642?
CVE-2021-25642 affects Apache Software Foundation Apache Hadoop.
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