CVE-2019-12399: Apache Kafka - Exposure of Sensitive Information to an Unauthorized Actor
Summary
CVE-2019-12399: Exposure of Sensitive Information to an Unauthorized Actor in Apache Kafka. Affects org.apache.kafka:kafka across 4 version ranges.
>= 2.0.0, < 2.0.2
>= 2.1.0, < 2.1.2
>= 2.2.0, < 2.2.2
>= 2.3.0, < 2.3.1
Fixed in 4 releases; the minimum fixed version depends on the release line you run. How to fix ↓
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Background
Apache Kafka is an open-source distributed event streaming platform used for building real-time data pipelines and streaming applications. It provides a high-throughput, fault-tolerant, and scalable messaging system. The vulnerability identified as CVE-2019-12399 affects Apache Kafka versions 2.0.0 to 2.3.0. This vulnerability allows an unauthorized actor to access sensitive information by exploiting a configuration issue in Connect workers when using externalized secret variables in connector configuration properties.
Vulnerability Detail
The vulnerability arises when Connect workers are configured with one or more config providers and a connector is created or updated to use an externalized secret variable in a substring of a connector configuration property value. In such cases, any client can send a request to the Connect cluster and retrieve the plaintext secret instead of the externalized secret variable. This exposes sensitive information to unauthorized actors. The impact of this vulnerability can be severe, as it allows unauthorized access to confidential data and can lead to data breaches or unauthorized system access.
How To Fix
Fixed versions by release line
The minimum fixed version depends on the release line you run.
-
>= 2.0.0, < 2.0.22.0.2 -
>= 2.1.0, < 2.1.22.1.2 -
>= 2.2.0, < 2.2.22.2.2 -
>= 2.3.0, < 2.3.12.3.1
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Workaround
There is no specific workaround provided for this vulnerability. The recommended approach is to upgrade to a fixed version of Apache Kafka.
Conclusion
The vulnerability CVE-2019-12399 in Apache Kafka exposes sensitive information to unauthorized actors. To mitigate this risk, it is crucial to upgrade to a fixed version of Apache Kafka (2.0.2, 2.1.2, 2.2.2, or 2.3.1) and review connector configurations. For further assistance with vulnerability remediation, please contact DevNack.com.
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FAQ
Apache Kafka is an open-source distributed event streaming platform used for building real-time data pipelines and streaming applications.
The vulnerability affects Apache Kafka versions 2.0.0 to 2.3.0.
The vulnerability exposes sensitive information to unauthorized actors, potentially leading to data breaches or unauthorized system access.
To fix this vulnerability, it is recommended to upgrade to a fixed version of Apache Kafka (2.0.2, 2.1.2, 2.2.2, or 2.3.1) and review/update connector configurations.
No specific workaround is provided. Upgrading to a fixed version is the recommended approach.
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