Authentication Bypass by Capture-replay in Apache Spark
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
describes (1)
Related CVEs.
| ID | severity | exploitable | ||
|---|---|---|---|---|
| CVE-2021-38296US | high7.5OT elevated | — | ||
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… | ||||
references
External citations — patches, advisories, analysis.
- https://github.com/advisories/GHSA-9rr6-jpg7-9jg6ADVISORY
- https://github.com/pypa/advisory-database/tree/main/vulns/pyspark/PYSEC-2022-186.yamlWEB
- https://lists.apache.org/thread/70x8fw2gx3g9ty7yk0f2f1dlpqml2smdWEB
- https://nvd.nist.gov/vuln/detail/CVE-2021-38296ADVISORY
- https://www.oracle.com/security-alerts/cpujul2022.htmlWEB
Advisories like this name the exposed products attackers go after on your perimeter. See what is exposed on your perimeter with a free passive scan.
Free scan