CVE-2022-33891 PoC — Apache Spark shell command injection vulnerability via Spark UI

Title:Apache Spark shell command injection vulnerability via Spark UI (CVE-2022-33891)
Description: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 affects Apache Spark versions 3.0.3 and earlier, versions 3.1.1 to 3.1.2, and versions 3.2.0 to 3.2.1.

Apache Spark UI is susceptible to remote command injection. ACLs can be enabled 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 impersonation by providing an arbitrary user name. An attacker can potentially reach a permission check function that will ultimately build a Unix shell command based on input and execute it, resulting in arbitrary shell command execution. Affected versions are 3.0.3 and earlier, 3.1.1 to 3.1.2, and 3.2.0 to 3.2.1.

 id: CVE-2022-33891

info:
  name: Apache Spark UI - Remote Command Injection
  author: princechaddha

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