CVE-2023-22886 in Airflow JDBC Provider
Summary
by MITRE • 06/29/2023
Improper Input Validation vulnerability in Apache Software Foundation Apache Airflow JDBC Provider. Airflow JDBC Provider Connection’s [Connection URL] parameters had no restrictions, which made it possible to implement RCE attacks via different type JDBC drivers, obtain airflow server permission. This issue affects Apache Airflow JDBC Provider: before 4.0.0.
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Analysis
by VulDB Data Team • 10/07/2024
The CVE-2023-22886 vulnerability represents a critical improper input validation flaw within the Apache Airflow JDBC Provider component that fundamentally undermines the security posture of affected systems. This vulnerability specifically targets the Connection URL parameter processing within the JDBC provider implementation, creating a pathway for remote attackers to execute arbitrary code on the Airflow server. The flaw stems from the absence of proper input validation mechanisms that should have restricted or sanitized the connection parameters passed to various JDBC drivers, thereby allowing maliciously crafted inputs to bypass normal security controls.
The technical exploitation of this vulnerability occurs through the manipulation of JDBC connection URLs that are processed by the Airflow server. When the JDBC provider receives connection parameters without proper validation, it accepts potentially dangerous input that can be interpreted by different JDBC drivers to execute unintended operations. This vulnerability is particularly dangerous because it leverages the inherent trust relationships within the Airflow ecosystem, where legitimate connection parameters are processed without sufficient scrutiny. Attackers can craft malicious connection URLs that, when processed by the vulnerable JDBC provider, can trigger code execution on the Airflow server with the privileges of the Airflow process.
The operational impact of this vulnerability extends beyond simple remote code execution to encompass complete system compromise and unauthorized access to sensitive data. An attacker who successfully exploits this vulnerability can gain full control over the Airflow server, potentially accessing workflow definitions, execution logs, and other sensitive operational data. The vulnerability affects all versions of the Apache Airflow JDBC Provider prior to version 4.0.0, making it a widespread concern for organizations that have not yet upgraded their installations. This issue directly violates security principles outlined in CWE-20, which addresses improper input validation as a fundamental weakness in software security design.
The exploitation of this vulnerability aligns with several tactics described in the MITRE ATT&CK framework, particularly those related to command and control operations and privilege escalation. Attackers can leverage this flaw to establish persistent access to the Airflow environment and potentially use it as a foothold for further reconnaissance and lateral movement within the network. Organizations implementing the affected Apache Airflow JDBC Provider are exposed to significant risk of data breaches and system compromise. The vulnerability's impact is compounded by the fact that Airflow is commonly used in enterprise environments for workflow automation and data processing, making the compromise of such systems potentially catastrophic for business operations and data integrity.
Organizations should immediately implement mitigations including upgrading to Apache Airflow JDBC Provider version 4.0.0 or later, which contains the necessary input validation fixes. Additionally, network segmentation and access controls should be implemented to limit exposure of Airflow services to untrusted networks. Security monitoring should be enhanced to detect unusual connection patterns or attempts to manipulate JDBC parameters. The vulnerability serves as a reminder of the critical importance of input validation in security-sensitive components and demonstrates how seemingly minor oversights in parameter handling can lead to severe security consequences.