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CVE-2021-38296

Apache Spark Key Negotiation Vulnerability

Published: Mar 10, 2022Updated: Nov 21, 2024 Sources: CVE List NVD GHSACWE-294
NVD MITRE
7.5CVSSHIGH
EPSS Score
1.8%
Top 24.1%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Am I actually vulnerable?1 Nuclei template available — see how to check your systems. How to verify

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

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:HI:NA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:NIntegrity
None
A:NAvailability
None
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Weaknesses

CWE-294

Affected Products

sparkapache
LibraryLibrary
OSS Libraries / generic-library
financial services crime and compliance management studiooracle
On-premWeb App
Enterprise Software / itsm-monitoring
Apache SparkApache Software Foundation
Mixed
Web & CMS Plugins / cms-core
org.apache.spark:spark-coreMavenOSS Libraries
pysparkPyPIOSS Libraries
apacheoss-projectUSWeb & CMS Pluginsaka apache http server, apache httpd
oraclecommercialUSDatabasesaka oracle corp.
apache software foundationoss-projectUSWeb & CMS Pluginsaka apache foundation
mavenpackage-ecosystemOSS Libraries
pypipackage-ecosystemOSS Libraries

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available

MITRE ATT&CK

1 technique
Defense Evasion
View detailed technique mapping

References

https://lists.apache.org/thread/70x8fw2gx3g9ty7yk0f2f1dlpqml2smd
lists.apache.org
https://www.oracle.com/security-alerts/cpujul2022.html
oracle.com
https://nvd.nist.gov/vuln/detail/CVE-2021-38296
nvd.nist.gov
and 2 more references View all →

Timeline

Published
Mar 10, 2022
Last Updated
Nov 21, 2024

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