// For flags

CVE-2021-38296

Apache Spark Key Negotiation Vulnerability

Severity Score

7.5
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

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

Apache Spark soporta el cifrado de extremo a extremo de las conexiones RPC por medio de "spark.authenticate" y "spark.network.crypto.enabled". En versiones 3.1.2 y anteriores, usa un protocolo de autenticación mutua a medida que permite la recuperación total de la clave de cifrado. Después de un ataque interactivo inicial, esto permitiría a alguien descifrar el tráfico de texto plano fuera de línea. Tenga en cuenta que esto no afecta a los mecanismos de seguridad controlados por "spark.authenticate.enableSaslEncryption", "spark.io.encryption.enabled", "spark.ssl", "spark.ui.strictTransportSecurity". Actualice a Apache Spark versión 3.1.3 o posterior

*Credits: Steve Weis (Databricks)
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
Partial
Integrity
None
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2021-08-09 CVE Reserved
  • 2022-03-10 CVE Published
  • 2024-03-06 EPSS Updated
  • 2024-08-04 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-294: Authentication Bypass by Capture-replay
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Apache
Search vendor "Apache"
 Spark
Search vendor "Apache" for product "Spark"
 < 3.1.3
Search vendor "Apache" for product "Spark" and version " < 3.1.3"
-
Affected
Oracle
Search vendor "Oracle"
 Financial Services Crime And Compliance Management Studio
Search vendor "Oracle" for product "Financial Services Crime And Compliance Management Studio"
 8.0.8.2.0
Search vendor "Oracle" for product "Financial Services Crime And Compliance Management Studio" and version "8.0.8.2.0"
-
Affected
Oracle
Search vendor "Oracle"
 Financial Services Crime And Compliance Management Studio
Search vendor "Oracle" for product "Financial Services Crime And Compliance Management Studio"
 8.0.8.3.0
Search vendor "Oracle" for product "Financial Services Crime And Compliance Management Studio" and version "8.0.8.3.0"
-
Affected