Vulnerability Details CVE-2021-38296
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
Exploit prediction scoring system (EPSS) score
EPSS Score 0.007
EPSS Ranking 70.8%
CVSS Severity
CVSS v3 Score 7.5
CVSS v2 Score 5.0
References
Products affected by CVE-2021-38296
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cpe:2.3:a:apache:spark:0.1
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cpe:2.3:a:apache:spark:0.2
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cpe:2.3:a:apache:spark:0.5.0
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cpe:2.3:a:apache:spark:0.5.1
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cpe:2.3:a:apache:spark:0.5.2
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cpe:2.3:a:apache:spark:0.6.0
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cpe:2.3:a:apache:spark:0.6.1
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cpe:2.3:a:apache:spark:0.6.2
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cpe:2.3:a:apache:spark:0.7.0
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cpe:2.3:a:apache:spark:0.7.1
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cpe:2.3:a:apache:spark:0.7.2
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cpe:2.3:a:apache:spark:0.7.3
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cpe:2.3:a:apache:spark:0.8.1
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cpe:2.3:a:apache:spark:0.9.1
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cpe:2.3:a:apache:spark:0.9.2
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cpe:2.3:a:apache:spark:1.0.0
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cpe:2.3:a:apache:spark:1.0.1
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cpe:2.3:a:apache:spark:1.0.2
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cpe:2.3:a:apache:spark:1.1.0
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cpe:2.3:a:apache:spark:1.1.1
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cpe:2.3:a:apache:spark:1.2.0
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cpe:2.3:a:apache:spark:1.2.1
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cpe:2.3:a:apache:spark:1.2.2
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cpe:2.3:a:apache:spark:1.3.0
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cpe:2.3:a:apache:spark:1.3.1
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cpe:2.3:a:apache:spark:1.4.0
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cpe:2.3:a:apache:spark:1.4.1
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cpe:2.3:a:apache:spark:1.5.0
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cpe:2.3:a:apache:spark:1.5.1
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cpe:2.3:a:apache:spark:1.5.2
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cpe:2.3:a:apache:spark:1.6.0
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cpe:2.3:a:apache:spark:1.6.1
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cpe:2.3:a:apache:spark:1.6.2
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cpe:2.3:a:apache:spark:1.6.3
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cpe:2.3:a:apache:spark:2.0.0
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cpe:2.3:a:apache:spark:2.0.1
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cpe:2.3:a:apache:spark:2.0.2
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cpe:2.3:a:apache:spark:2.1.0
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cpe:2.3:a:apache:spark:2.1.1
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cpe:2.3:a:apache:spark:2.1.2
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cpe:2.3:a:apache:spark:2.1.3
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cpe:2.3:a:apache:spark:2.2.0
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cpe:2.3:a:apache:spark:2.2.1
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cpe:2.3:a:apache:spark:2.2.2
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cpe:2.3:a:apache:spark:2.2.3
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cpe:2.3:a:apache:spark:2.3.0
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cpe:2.3:a:apache:spark:2.3.1
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cpe:2.3:a:apache:spark:2.3.2
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cpe:2.3:a:apache:spark:2.3.3
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cpe:2.3:a:apache:spark:2.3.4
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cpe:2.3:a:apache:spark:2.4.0
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cpe:2.3:a:apache:spark:2.4.1
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cpe:2.3:a:apache:spark:2.4.2
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cpe:2.3:a:apache:spark:2.4.3
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cpe:2.3:a:apache:spark:2.4.4
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cpe:2.3:a:apache:spark:2.4.5
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cpe:2.3:a:apache:spark:2.4.6
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cpe:2.3:a:apache:spark:2.4.7
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cpe:2.3:a:apache:spark:2.4.8
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cpe:2.3:a:apache:spark:3.0.0
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cpe:2.3:a:apache:spark:3.0.1
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cpe:2.3:a:apache:spark:3.0.2
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cpe:2.3:a:apache:spark:3.0.3
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cpe:2.3:a:apache:spark:3.1.0
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cpe:2.3:a:apache:spark:3.1.1
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cpe:2.3:a:apache:spark:3.1.2
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cpe:2.3:a:oracle:financial_services_crime_and_compliance_management_studio:8.0.8.2.0
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cpe:2.3:a:oracle:financial_services_crime_and_compliance_management_studio:8.0.8.3.0