This is a summary of the AI-generated 10-question deep analysis. The full version (longer answers, follow-up Q&A, related CVEs) requires login. Read the full analysis β
Q1What is this vulnerability? (Essence + Consequences)
π¨ **Essence**: Apache Airflow Example Dags allow arbitrary command execution via the `run_id` parameter. π₯ **Consequences**: Remote Code Execution (RCE).β¦
π‘οΈ **Root Cause**: CWE-94 (Code Injection). The flaw lies in how Example Dags process the `run_id` parameter, failing to sanitize input before executing shell commands.
Q3Who is affected? (Versions/Components)
π¦ **Affected**: Apache Airflow versions **prior to 2.4.0**. Specifically impacts the `example_bash_operator` DAGs included in the default installation.
Q4What can hackers do? (Privileges/Data)
π **Attacker Capabilities**: With UI access, an attacker can trigger DAGs and inject malicious payloads into `run_id`. This grants **arbitrary command execution** on the host running the Airflow component.
Q5Is exploitation threshold high? (Auth/Config)
β οΈ **Threshold**: **Medium**. Requires **UI access** (authentication) to trigger the DAG. However, if default credentials or exposed UI exist, exploitation is trivial.
Q6Is there a public Exp? (PoC/Wild Exploitation)
π **Public Exploits**: **YES**. Multiple PoCs are available on GitHub (e.g., Mr-xn, jakabakos). Nuclei templates also exist for automated scanning.
Q7How to self-check? (Features/Scanning)
π **Self-Check**: 1. Check Airflow version (< 2.4.0). 2. Verify if `example_dags` are enabled. 3. Use Nuclei template `CVE-2022-40127.yaml` for automated detection.
Q8Is it fixed officially? (Patch/Mitigation)
β **Fixed**: **YES**. Patched in **Apache Airflow 2.4.0**. Upgrade immediately to the latest stable version to resolve the vulnerability.
Q9What if no patch? (Workaround)
π§ **No Patch Workaround**: Disable `example_dags` in `airflow.cfg` (`load_examples = False`). Restrict UI access to trusted users only. Remove `example_bash_operator` DAG files.
Q10Is it urgent? (Priority Suggestion)
π₯ **Urgency**: **HIGH**. RCE vulnerabilities are critical. If your UI is exposed or has weak auth, patch or mitigate **immediately** to prevent server takeover.