CVE-2025-30473
Remediation / Mitigation Strategy for CVE-2025-30473
Vulnerability: Improper Neutralization of Special Elements used in an SQL Command (‘SQL Injection’) in Apache Airflow Common SQL Provider.
Description: Authenticated users can inject arbitrary SQL commands via the partition_clause parameter in the SQLTableCheckOperator when triggering a DAG. This allows them to escalate privileges and execute commands they wouldn’t normally have access to. The vulnerability occurs because the partition_clause input isn’t properly sanitized, allowing malicious SQL code to be injected and executed by the Airflow instance.
Severity: High (CVSS Score 8.8)
Known Exploit: An authenticated user, possessing the ability to trigger DAGs, can inject malicious SQL code into the partition_clause parameter of an SQLTableCheckOperator. This injected SQL code will be executed by the Airflow system, potentially granting the attacker unauthorized access to data, system resources, or the ability to modify data and infrastructure.
Remediation:
- Upgrade: Upgrade Apache Airflow Common SQL Provider to version 1.24.1 or later. This version contains the fix for the SQL injection vulnerability.
- Verify: After upgrading, verify that the vulnerable code paths involving the
SQLTableCheckOperatorandpartition_clauseare no longer susceptible to SQL injection attacks. Test with known SQL injection payloads (without actually compromising the system) to confirm the fix is effective.
Mitigation (If Immediate Upgrade is Not Possible):
- Restrict Access: Limit user access to DAG triggering, especially for DAGs that utilize the
SQLTableCheckOperatorwith user-suppliedpartition_clause. Only authorized personnel should have the ability to trigger these DAGs. - Input Validation: If possible without significantly modifying functionality before an upgrade, implement strict input validation and sanitization for the
partition_clauseparameter. Use a whitelist approach to only allow approved characters and SQL syntax. Blacklisting is not recommended as it is easily bypassed. However, it is strongly recommended to apply the upgrade fix. - Monitoring & Alerting: Implement robust monitoring and alerting for suspicious SQL queries or database access patterns. Look for unusual or unexpected SQL syntax within the
partition_clauseparameter or queries originating from the Airflow service account. - Code Review: Perform a thorough code review of all DAGs that utilize the
SQLTableCheckOperatorto identify potential vulnerabilities. Look for instances where user-supplied input is directly incorporated into SQL queries without proper sanitization. - Least Privilege: Ensure that the Airflow service account has the minimum necessary privileges to perform its required tasks. Avoid granting unnecessary database privileges to the Airflow service account.
Assigner
- Apache Software Foundation [email protected]
Date
- Published Date: 2025-04-07 08:31:57
- Updated Date: 2025-04-07 16:15:26