CVE-2023-30428 : Security Advisory and Response
Discover the details of CVE-2023-30428, an Incorrect Authorization vulnerability in Apache Pulsar Broker that allows unauthorized message production. Learn about affected versions and mitigation steps.
A detailed analysis of CVE-2023-30428, a vulnerability in Apache Pulsar Broker that allows an authenticated user to produce messages to any topic using the admin role.
Understanding CVE-2023-30428
This section will cover what CVE-2023-30428 entails and its implications.
What is CVE-2023-30428?
The CVE-2023-30428 vulnerability involves an Incorrect Authorization issue in Apache Pulsar Broker. It enables an authenticated user with a custom HTTP header to produce messages to any topic using the broker's admin role.
The Impact of CVE-2023-30428
The vulnerability affects Apache Pulsar Brokers versions 2.9.0 through 2.9.5, 2.10.0 before 2.10.4, and 2.11.0. Exploiting this vulnerability allows an attacker to produce messages to any topic in the cluster, potentially causing data corruption or unauthorized access.
Technical Details of CVE-2023-30428
In this section, we will delve into the specific technical aspects of the CVE-2023-30428 vulnerability.
Vulnerability Description
The vulnerability allows an authenticated user to bypass authorization controls and misuse the broker's admin role to produce messages across topics, posing a significant security risk.
Affected Systems and Versions
Apache Pulsar Brokers versions 2.9.0 through 2.9.5, 2.10.0 before 2.10.4, and 2.11.0 are affected by this vulnerability.
Exploitation Mechanism
The vulnerability can be exploited when an attacker connects directly to the Pulsar Broker, allowing them to send unauthorized messages to various topics within the cluster.
Mitigation and Prevention
This section outlines the steps to mitigate the CVE-2023-30428 vulnerability and prevent potential exploitation.
Immediate Steps to Take
- Users of affected versions (2.9.0 to 2.9.5, 2.10.0 to 2.10.4, and 2.11.0) should upgrade to the patched versions immediately.
Long-Term Security Practices
- Regularly update Apache Pulsar Broker to the latest versions to ensure all security patches are applied promptly.
Patching and Updates
- Apache Pulsar Broker users should upgrade to at least version 2.10.4 for 2.10 users and version 2.11.1 for 2.11 users to mitigate the vulnerability.