Apache Spark proxy-user privilege escalation from malicious configuration class
In Apache Spark versions prior to 3.4.0, applications using spark-submit can specify a 'proxy-user' to run as, limiting privileges. The application can execute code with the privileges of the submitting user, however, by providing malicious configuration-related classes on the classpath. This affects architectures relying on proxy-user, for example those using Apache Livy to manage submitted applications.
Update to Apache Spark 3.4.0 or later, and ensure that
spark.submit.proxyUser.allowCustomClasspathInClusterMode is set to its
default of "false", and is not overridden by submitted applications.
Problem Types
| Type | CWE ID | Description |
|---|
| CWE | CWE-269 | CWE-269 Improper Privilege Management |
Type: CWE
Description: CWE-269 Improper Privilege Management
Metrics
| Version | Base score | Base severity | Vector |
|---|
| 3.1 | 6.4 | MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N |
Version: 3.1
Base score: 6.4
Base severity: MEDIUM
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N