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
Products affected by CVE-2021-38296
- cpe:2.3:a:apache:spark:*:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:financial_services_crime_and_compliance_management_studio:8.0.8.2.0:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:financial_services_crime_and_compliance_management_studio:8.0.8.3.0:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-38296
0.05%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 24 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-38296
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:P/I:N/A:N |
10.0
|
2.9
|
NIST | |
|
7.5
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
3.9
|
3.6
|
NIST |
CWE ids for CVE-2021-38296
-
A capture-replay flaw exists when the design of the product makes it possible for a malicious user to sniff network traffic and bypass authentication by replaying it to the server in question to the same effect as the original message (or with minor changes).Assigned by:
- nvd@nist.gov (Primary)
- security@apache.org (Secondary)
References for CVE-2021-38296
-
https://www.oracle.com/security-alerts/cpujul2022.html
Oracle Critical Patch Update Advisory - July 2022Patch;Third Party Advisory
-
https://lists.apache.org/thread/70x8fw2gx3g9ty7yk0f2f1dlpqml2smd
CVE-2021-38296: Apache Spark Key Negotiation Vulnerability-Apache Mail ArchivesMailing List;Vendor Advisory
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