CVE-2020-9480

In Apache Spark 2.4.5 and earlier, a standalone resource manager's master may be configured to require authentication (spark.authenticate) via a shared secret. When enabled, however, a specially-crafted RPC to the master can succeed in starting an application's resources on the Spark cluster, even without the shared key. This can be leveraged to execute shell commands on the host machine. This does not affect Spark clusters using other resource managers (YARN, Mesos, etc).

Affected

Apache Software Foundation · Apache Spark

CVSS v4.0 GitHub

9.3 CRITICALCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CVSS v3.1 NVD

9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v2.0 NVD

9.3 HIGHAV:N/AC:M/Au:N/C:C/I:C/A:C

EPSS

29.37% chance of exploitation in the next 30 days, 98th percentile

Nuclei

critical · CWE-306

Published

2020-06-23

Updated

2024-08-04

Proof-of-concept exploits (1)

• XiaoShaYu617/CVE-2020-94800★ · 2024-07-25

Nuclei templates (1)

• projectdiscovery/nuclei-templates/blob/main/http/cves/2020/CVE-2020-9480.yaml

Security advisories

• https://spark.apache.org/security.html#CVE-2020-9480
• https://www.oracle.com/security-alerts/cpuApr2021.html
• advisories/GHSA-wgx7-jwwm-cgjv

References

• CVE Record
• NVD entry