High severity · published Aug 25, 2022
CVE-2021-25642
ZKConfigurationStore which is optionally used by CapacityScheduler of Apache Hadoop YARN deserializes data obtained from ZooKeeper without validation
8.8
CVSS
2.3%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)2.3% · higher than 83% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
HA
Hadoop · Apache
2.9.0 before 2.10.2; 3.0.0 before 3.2.4; 3.3.0 before 3.3.4 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-25642
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-25642
Mailing List
https://lists.apache.org/thread/g6vf2h4wdgzzdgk91mqozhs58wotq150
Third Party Advisory
https://security.netapp.com/advisory/ntap-20221201-0003/
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