title: Apache Spark Key Negotiation Vulnerability
description: Apache Spark supports end-to-end encryption of RPC connections via "spark.authenticate" and "spark.network.crypto.enabled". In versions 3.1.2 and earlier, it uses a bespoke mutual authentication protocol that allows for full encryption key recovery. After an initial interactive attack, this would allow someone to decrypt plaintext traffic offline. Note that this does not affect security mechanisms controlled by "spark.authenticate.enableSaslEncryption", "spark.io.encryption.enabled", "spark.ssl", "spark.ui.strictTransportSecurity". Update to Apache Spark 3.1.3 or later
problem types: CWE-294 Authentication Bypass by Capture-replay
affected:
{
product: Apache Spark
vendor: Apache Software Foundation
versions:
lessThanOrEqual: 3.1.2, status: affected, version: up to and including version 3.1.2, versionType: custom
}
metrics:
other: [
content: {'other': 'moderate'}
type: unknown
]