CVE-2018-17196 Explained : Impact and Mitigation
Learn about CVE-2018-17196 affecting Apache Kafka versions 0.11.0.0 to 2.1.0, allowing unauthorized ACL validation bypass. Find mitigation steps and prevention measures here.
Apache Kafka versions 0.11.0.0 to 2.1.0 are vulnerable to an unauthorized bypass of transaction/idempotent ACL validation, allowing exploitation by authenticated clients with Write authorization.
Understanding CVE-2018-17196
Apache Kafka vulnerability allowing unauthorized bypass of ACL validation.
What is CVE-2018-17196?
In Apache Kafka versions 0.11.0.0 to 2.1.0, a customized Produce request can bypass ACL validation, exploitable by authenticated clients with Write access to topics.
The Impact of CVE-2018-17196
- Potential for unauthorized bypass of ACL validation
- Requires authenticated clients with Write permission on relevant topics
Technical Details of CVE-2018-17196
Apache Kafka vulnerability details.
Vulnerability Description
- Vulnerability in Apache Kafka versions 0.11.0.0 to 2.1.0
- Allows manual crafting of Produce request to bypass ACL validation
Affected Systems and Versions
- Product: Kafka
- Vendor: Apache
- Versions: 0.11.0.0 to 2.1.0
Exploitation Mechanism
- Authenticated clients with Write permission on topics can exploit the vulnerability
Mitigation and Prevention
Steps to mitigate and prevent CVE-2018-17196.
Immediate Steps to Take
- Upgrade to version 2.1.1 or later
Long-Term Security Practices
- Regularly update to the latest versions
- Implement strict access controls
Patching and Updates
- Ensure all systems are updated to versions 2.1.1 or higher