CVE-2021-38296

Summary

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

Affected Software

VendorProductVersion RangeStatus
Apache Software FoundationApache Sparkup to and including version 3.1.2 <= 3.1.2affected

Weaknesses

  • CWE-294: CWE-294 Authentication Bypass by Capture-replay

ADP Enrichment

CVE Program Container

Additional References

References