Apache Spark: Shell command injection via Spark UI

Summary

** UNSUPPORTED WHEN ASSIGNED ** The Apache Spark UI offers the possibility to enable ACLs via the configuration option spark.acls.enable. With an authentication filter, this checks whether a user has access permissions to view or modify the application. If ACLs are enabled, a code path in HttpSecurityFilter can allow someone to perform impersonation by providing an arbitrary user name. A malicious user might then be able to reach a permission check function that will ultimately build a Unix shell command based on their input, and execute it. This will result in arbitrary shell command execution as the user Spark is currently running as. This issue was disclosed earlier as CVE-2022-33891, but incorrectly claimed version 3.1.3 (which has since gone EOL) would not be affected. NOTE: This vulnerability only affects products that are no longer supported by the maintainer. Users are recommended to upgrade to a supported version of Apache Spark, such as version 3.4.0.

Timeline

1. May 2, 2023, 8:37 AM UTCCVE published
2. Oct 15, 2024, 6:07 PM UTCCISA SSVC assessment

   Exploitation: none · Automatable: no · Technical impact: total

3. Feb 13, 2025, 4:50 PM UTCRecord last updated
4. Oct 28, 2026EPSS reached 10%

   FIRST estimates at least a 10% chance of exploitation in the next 30 days

Affected versions

• Apache Software Foundation Apache Spark

  From 3.1.1 · fixed in 3.2.2

• pysparkPyPI

  fixed in 3.2.2

• org.apache.spark:spark-parent_2.12Maven

  From 3.1.1 · fixed in 3.2.2

• pysparkPyPI

  From 3.1.1 · fixed in 3.2.2

References 4