CVE-2021-25642: Deserialization of Untrusted Data in Apache Hadoop YARN

August 26, 2022 (updated August 30, 2022)

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.

References

github.com/advisories/GHSA-rr2m-gffv-mgrj
github.com/apache/hadoop/commit/5e2f4339fadc88f20543915fc9b0aaeaf4f9e7bf
lists.apache.org/thread/g6vf2h4wdgzzdgk91mqozhs58wotq150
nvd.nist.gov/vuln/detail/CVE-2021-25642

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