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Q1What is this vulnerability? (Essence + Consequences)
🚨 **Essence**: Apache Airflow suffers from **OS Command Injection**. 📉 **Consequences**: Attackers can execute arbitrary shell commands on the target system.…
🛡️ **Root Cause**: **CWE-78** (Improper Neutralization of Special Elements used in an OS Command). 🐛 **Flaw**: Incorrect input validation in certain **example DAGs**. User-provided parameters are not properly sanitized.
Q3Who is affected? (Versions/Components)
🏢 **Vendor**: Apache Software Foundation. 📦 **Product**: Apache Airflow. ⚠️ **Affected**: Versions **prior to 2.2.4**. Specifically, the vulnerability lies in the **example DAGs** included in the distribution.
Q4What can hackers do? (Privileges/Data)
💻 **Privileges**: Remote attackers gain the ability to run **arbitrary OS commands**.…
🔓 **Auth Status**: **Unauthenticated**. 🌐 **Access**: Remote attackers can exploit this via the **Web UI** without needing valid credentials. ⚙️ **Config**: Requires the vulnerable example DAGs to be enabled/accessible.
Q6Is there a public Exp? (PoC/Wild Exploitation)
📜 **Public Exploit**: Yes. 🧪 **PoC Available**: Proof of Concept exists in **Nuclei templates** (projectdiscovery).…
✅ **Fixed**: Yes. 🩹 **Patch**: Upgrade to **Apache Airflow version 2.2.4** or later. 📅 **Published**: Advisory released on **2022-02-25**.
Q9What if no patch? (Workaround)
🚧 **Workaround**: If patching is impossible, **disable or remove the example DAGs** from the Airflow configuration. 🚫 Ensure these specific DAGs are not loaded or accessible via the Web UI.
Q10Is it urgent? (Priority Suggestion)
🔥 **Urgency**: **HIGH**. 🚨 **Priority**: Immediate action required. Since it is **unauthenticated** and allows **RCE**, it is critical for any public-facing or exposed Airflow instance. Patch immediately!