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Description
CVE-2024-27309 - Critical Severity Vulnerability
Vulnerable Library - kafka-metadata-3.6.1.jar
Library home page: https://kafka.apache.org
Path to dependency file: /persistence/build.gradle
Path to vulnerable library: /home/wss-scanner/.gradle/caches/modules-2/files-2.1/org.apache.kafka/kafka-metadata/3.6.1/568acb2c4d16ac625be067dcfb68fc75f39e76b6/kafka-metadata-3.6.1.jar
Dependency Hierarchy:
- spring-kafka-test-3.1.3.jar (Root Library)
- ❌ kafka-metadata-3.6.1.jar (Vulnerable Library)
Found in HEAD commit: 335a4047c89f52dfe860e93daefb32dc86a521a2
Found in base branch: develop
Vulnerability Details
While an Apache Kafka cluster is being migrated from ZooKeeper mode to KRaft mode, in some cases ACLs will not be correctly enforced.
Two preconditions are needed to trigger the bug:
- The administrator decides to remove an ACL
- The resource associated with the removed ACL continues to have two or more other ACLs associated with it after the removal.
When those two preconditions are met, Kafka will treat the resource as if it had only one ACL associated with it after the removal, rather than the two or more that would be correct.
The incorrect condition is cleared by removing all brokers in ZK mode, or by adding a new ACL to the affected resource. Once the migration is completed, there is no metadata loss (the ACLs all remain).
The full impact depends on the ACLs in use. If only ALLOW ACLs were configured during the migration, the impact would be limited to availability impact. if DENY ACLs were configured, the impact could include confidentiality and integrity impact depending on the ACLs configured, as the DENY ACLs might be ignored due to this vulnerability during the migration period.
Publish Date: 2024-04-12
URL: CVE-2024-27309
CVSS 3 Score Details (9.8)
Base Score Metrics:
- Exploitability Metrics:
- Attack Vector: Network
- Attack Complexity: Low
- Privileges Required: None
- User Interaction: None
- Scope: Unchanged
- Impact Metrics:
- Confidentiality Impact: High
- Integrity Impact: High
- Availability Impact: High
Suggested Fix
Type: Upgrade version
Origin: https://www.cve.org/CVERecord?id=CVE-2024-27309
Release Date: 2024-04-12
Fix Resolution: org.apache.kafka:kafka-metadata:3.6.2
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