0x00 说明：
这是一款基于主机的漏洞扫描工具，采用多线程确保可以快速的请求数据，采用线程锁可以在向sqlite数据库中写入数据避免database is locked的错误，采用md5哈希算法确保数据不重复插入。
本工具查找是否有公开exp的网站为shodan,该网站限制网络发包的速度，因而采用了单线程的方式，且耗时较长。
功能：
查找主机上具有的CVE
查找具有公开EXP的CVE
0x01 起因：
因为需要做一些主机漏洞扫描方面的工作，因而编写了这个简单的工具。之前也查找了几款类似的工具，如下：
vulmap:
vulmon开发的一款开源工具，原理是根据软件的名称和版本号来确定，是否有CVE及公开的EXP。这款Linux的工具挺好用，但是对于Windows系统层面不太适用。
windows-exp-suggester:
这款和本工具的原理一样，尝试使用了之后，发现它的CVEKB数据库只更新到2017年的，并且没有给出CVE是否有公开的EXP信息。
基于以上所以写了这个简单的工具,该项目在https://github.com/chroblert/WindowsVulnScan
0x02 原理：
1. 搜集CVE与KB的对应关系。首先在微软官网上收集CVE与KB对应的关系，然后存储进数据库中
2. 查找特定CVE网上是否有公开的EXP
3. 利用powershell脚本收集主机的一些系统版本与KB信息
4. 利用系统版本与KB信息搜寻主机上具有存在公开EXP的CVE
0x03 参数：
# author: JC0o0l
# GitHub: https://github.com/chroblert/
可选参数:
-h, --help show this help message and exit
-u, --update-cve 更新CVEKB数据
-U, --update-exp 更新CVEEXP数据
-C, --check-EXP 检索具有EXP的CVE
-f FILE, --file FILE ps1脚本运行后产生的.json文件0x04 示例：
1. 首先运行powershell脚本KBCollect.ps收集一些信息
.\KBCollect.ps12. 将运行后产生的KB.json文件移动到cve-check.py所在的目录
3. 安装一些python3模块
python3 -m pip install requirements.txt4. 运行cve-check.py -u创建CVEKB数据库
5. 运行cve-check.py -U更新CVEKB数据库中的hasPOC字段
6. 运行cve-check.py -C -f KB.json查看具有公开EXP的CVE，如下：
0x05 源码：
KBCollect.ps1:
function Get-CollectKB(){
# 1. 搜集所有的KB补丁
$KBArray = @()
$KBArray = Get-HotFix|ForEach-Object {$_.HotFixId}
$test = $KBArray|ConvertTo-Json
return $test
}
function Get-BasicInfo(){
# 1. 操作系统
# $windowsProductName = (Get-ComputerInfo).WindowsProductName
$windowsProductName = (Get-CimInstance Win32_OperatingSystem).Caption
# 2. 操作系统版本
$windowsVersion = (Get-ComputerInfo).WindowsVersion
$basicInfo = "{""windowsProductName"":""$windowsProductName"",""windowsVersion"":""$windowsVersion""}"
return $basicInfo
}
$basicInfo = Get-BasicInfo
$KBList = Get-CollectKB
$KBResult = "{""basicInfo"":$basicInfo,""KBList"":$KBList}"
$KBResult|Out-File KB.json -encoding utf8cve-check.py:
import requests
import sqlite3
import json
import hashlib
import math
import re
import threading
import time
import argparse
from pathlib import Path
# 删除一些ssl 认证的warnging信息
requests.packages.urllib3.disable_warnings()
ThreadCount=20
DBFileName="CVEKB.db"
TableName="CVEKB"
insertSQL = []
updateSQL = []
lock = threading.Lock()
KBResult = {}
parser = argparse.ArgumentParser()
parser.add_argument("-u","--update-cve",help="更新CVEKB数据",action="store_true")
parser.add_argument("-U","--update-exp",help="更新CVEEXP数据",action="store_true")
parser.add_argument("-C","--check-EXP",help="检索具有EXP的CVE",action="store_true")
parser.add_argument("-f","--file",help="ps1脚本运行后产生的.json文件")
args = parser.parse_args()
class CVEScanThread(threading.Thread):
def __init__(self,func,args,name="",):
threading.Thread.__init__(self)
self.func = func
self.args = args
self.name = name
self.result = None
def run(self):
print("thread:{} :start scan page {}".format(self.args[1],self.args[0]))
self.result = self.func(self.args[0],)
print("thread:{} :stop scan page {}".format(self.args[1],self.args[0]))
class EXPScanThread(threading.Thread):
def __init__(self,func,args,name="",):
threading.Thread.__init__(self)
self.func = func
self.args = args
self.name = name
self.result = None
def run(self):
print("thread:{} :start scan CVE: {},xuehao:{}".format(self.args[1],self.args[0],self.args[2]))
self.result = self.func(self.args[0],)
print("thread:{} :stop scan CVE: {}".format(self.args[1],self.args[0]))
def get_result(self):
threading.Thread.join(self)
try:
return self.result
except Exception:
return "Error"
def get_page_num(num=1,pageSize=100):
url = "https://portal.msrc.microsoft.com/api/security-guidance/en-us"
payload = "{\"familyIds\":[],\"productIds\":[],\"severityIds\":[],\"impactIds\":[],\"pageNumber\":" + str(num) + ",\"pageSize\":" + str(pageSize) + ",\"includeCveNumber\":true,\"includeSeverity\":false,\"includeImpact\":false,\"orderBy\":\"publishedDate\",\"orderByMonthly\":\"releaseDate\",\"isDescending\":true,\"isDescendingMonthly\":true,\"queryText\":\"\",\"isSearch\":false,\"filterText\":\"\",\"fromPublishedDate\":\"01/01/1998\",\"toPublishedDate\":\"03/02/2020\"}"
headers = {
'origin': "https//portal.msrc.microsoft.com",
'referer': "https//portal.msrc.microsoft.com/en-us/security-guidance",
'accept-language': "zh-CN",
'user-agent': "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.3029.110 Safari/537.36 Edge/16.16299",
'accept': "application/json, text/plain, */*",
'accept-encoding': "gzip, deflate",
'host': "portal.msrc.microsoft.com",
'connection': "close",
'cache-control': "no-cache",
'content-type': "application/json",
}
response = requests.request("POST", url, data=payload, headers=headers, verify = False)
resultCount = json.loads(response.text)['count']
return math.ceil(int(resultCount)/100)
def update_cvekb_database(num=1,pageSize=100):
pageCount = get_page_num()
#for i in range(1,pageCount+1):
i = 1
pageCount=524
tmpCount = ThreadCount
while i <= pageCount:
tmpCount = ThreadCount if (pageCount - i) >= ThreadCount else pageCount - i
print("i:{},pageCount-i:{},ThreadCount:{},PageCount:{}".format(i,pageCount-i,ThreadCount,pageCount))
time.sleep(0.5)
threads = []
print("===============================")
for j in range(1,tmpCount + 1):
print("更新第{}页".format(i+j-1))
t = CVEScanThread(update_onepage_cvedb_database,(i+j-1,j,),str(j))
threads.append(t)
for t in threads:
t.start()
for t in threads:
t.join()
# update_onepage_cvedb_database(num=i)
i = i + tmpCount
conn = sqlite3.connect(DBFileName)
for sql in insertSQL:
conn.execute(sql)
conn.commit()
conn.close()
if tmpCount != ThreadCount:
break
def check_POC_every_CVE(CVEName=""):
#apiKey = ""
#url = "https://exploits.shodan.io/api/search?query=" + CVEName + "&key=" + apiKey
url = "https://exploits.shodan.io/?q=" + CVEName
try:
response = requests.request("GET",url=url,verify=False,timeout=10)
#total = json.loads(response.text)
except Exception as e:
print("Error,{}".format(CVEName))
print(e)
return "Error"
if "Total Results" not in response.text:
return "False"
else:
return "True"
def update_onepage_cvedb_database(num=1,pageSize=100):
url = "https://portal.msrc.microsoft.com/api/security-guidance/en-us"
payload = "{\"familyIds\":[],\"productIds\":[],\"severityIds\":[],\"impactIds\":[],\"pageNumber\":" + str(num) + ",\"pageSize\":" + str(pageSize) + ",\"includeCveNumber\":true,\"includeSeverity\":false,\"includeImpact\":false,\"orderBy\":\"publishedDate\",\"orderByMonthly\":\"releaseDate\",\"isDescending\":true,\"isDescendingMonthly\":true,\"queryText\":\"\",\"isSearch\":false,\"filterText\":\"\",\"fromPublishedDate\":\"01/01/1998\",\"toPublishedDate\":\"03/02/2020\"}"
headers = {
'origin': "https//portal.msrc.microsoft.com",
'referer': "https//portal.msrc.microsoft.com/en-us/security-guidance",
'accept-language': "zh-CN",
'user-agent': "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.3029.110 Safari/537.36 Edge/16.16299",
'accept': "application/json, text/plain, */*",
'accept-encoding': "gzip, deflate",
'host': "portal.msrc.microsoft.com",
'connection': "close",
'cache-control': "no-cache",
'content-type': "application/json",
}
try:
response = requests.request("POST", url, data=payload, headers=headers, verify = False)
resultList = json.loads(response.text)['details']
except :
print(response.text)
conn = sqlite3.connect(DBFileName)
create_sql = """Create Table IF NOT EXISTS {} (
hash TEXT UNIQUE,
name TEXT,
KBName TEXT,
CVEName TEXT,
impact TEXT,
hasPOC TEXT)""".format(TableName)
conn.execute(create_sql)
conn.commit()
conn.close()
for result in resultList:
KBName = result['articleTitle1'] + ";" if (result['articleTitle1'] != None) and result['articleTitle1'].isdigit() else ""
KBName += result['articleTitle2'] + ";" if (result['articleTitle2'] != None) and result['articleTitle2'].isdigit() else ""
KBName += result['articleTitle3'] + ";" if (result['articleTitle3'] != None) and result['articleTitle3'].isdigit() else ""
KBName += result['articleTitle4'] + ";" if (result['articleTitle4'] != None) and result['articleTitle4'].isdigit() else ""
if KBName == "":
continue
h1 = hashlib.md5()
metaStr = result['name'] + KBName + result['cveNumber'] + result['impact']
h1.update(metaStr.encode('utf-8'))
#hasPOC = check_POC_every_CVE(result['cveNumber'])
# 收集到所有的KB后再搜索有没有公开的EXP
hasPOC = ""
sql = "INSERT OR IGNORE INTO "+TableName+" VALUES ('" + h1.hexdigest() + "','" + result['name'] + "','" + KBName + "','" + result['cveNumber'] + "','" + result['impact'] + "','" + hasPOC+"')"
with lock:
global insertSQL
insertSQL.append(sql)
# conn.execute(sql)
# conn.commit()
# conn.close()
# pass
def select_CVE(tmpList=[],windowsProductName="",windowsVersion=""):
conn = sqlite3.connect(DBFileName)
con = conn.cursor()
intersectionList = []
count = 0
for i in tmpList:
sql = 'select distinct(CVEName) from '+ TableName+' where (name like "'+ windowsProductName+'%'+ windowsVersion + '%") and ("'+ i +'" not in (select KBName from '+ TableName +' where name like "'+ windowsProductName+'%'+windowsVersion+'%")); '
cveList = []
for cve in con.execute(sql):
cveList.append(cve[0])
if count == 0:
intersectionList = cveList.copy()
count +=1
intersectionList = list(set(intersectionList).intersection(set(cveList)))
intersectionList.sort()
for cve in intersectionList:
sql = "select CVEName from {} where CVEName == '{}' and hasPOC == 'True'".format(TableName,cve)
# print(sql)
con.execute(sql)
if len(con.fetchall()) != 0:
print("{} has EXP".format(cve))
# print(intersectionList)
def update_hasPOC(key = "Empty"):
conn = sqlite3.connect(DBFileName)
con = conn.cursor()
if key == "All":
sql = "select distinct(CVEName) from {}".format(TableName)
else:
sql = "select distinct(CVEName) from {} where (hasPOC IS NULL) OR (hasPOC == '')".format(TableName)
con.execute(sql)
cveNameList = con.fetchall()
i = 0
count = 1
while i < len(cveNameList):
print("|=========={}============|".format(i))
# tmpCount = ThreadCount if (len(cveNameList) - i) >= ThreadCount else len(cveNameList) - i
# threads = []
# for j in range(1,tmpCount+1):
# t = EXPScanThread(check_POC_every_CVE,(cveNameList[i+j][0],j,i+j,),str(j))
# threads.append(t)
# for t in threads:
# t.start()
# for t in threads:
# t.join()
# j = 1
# for t in threads:
# hasPOC = t.get_result()
# print(hasPOC)
# update_sql = "UPDATE "+TableName+" set hasPOC = '" + hasPOC + "' WHERE cveName == '" + cveNameList[i+j][0] +"';"
# conn.execute(update_sql)
# print("[+] update:{}".format(update_sql))
# j += 1
# i=i+ThreadCount
# conn.commit()
hasPOC = check_POC_every_CVE(cveNameList[i][0])
time.sleep(0.3)
update_sql = "UPDATE "+TableName+" set hasPOC = '" + hasPOC + "' WHERE cveName == '" + cveNameList[i][0] +"';"
conn.execute(update_sql)
print(update_sql)
count += 1
i += 1
if count == 10:
conn.commit()
print("[+]update")
count = 1
conn.commit()
conn.close()
print("Over")
if __name__ == "__main__":
banner = """
========CVE-EXP-Check===============
| author:JC0o0l |
| wechat:JC_SecNotes |
| version:1.0 |
=====================================
"""
print(banner)
if (not args.check_EXP ) and (not args.update_cve) and (not args.update_exp) and args.file is None:
parser.print_help()
if args.update_cve:
update_cvekb_database()
if args.update_exp:
dbfile=Path(DBFileName)
if dbfile.exists():
update_hasPOC(key="Empty")
else:
print("请先使用-u 创建数据库")
parser.print_help()
if args.check_EXP:
dbfile=Path(DBFileName)
if not dbfile.exists():
print("请先使用-u 创建数据库，之后使用 -U 更新是否有EXP")
parser.print_help()
exit()
if args.file:
with open(args.file,"r",encoding="utf-8") as f:
KBResult = json.load(f)
windowsProductName = KBResult['basicInfo']['windowsProductName']
windowsProductName = ((re.search("\w[\w|\s]+\d+[\s|$]",windowsProductName).group()).strip()).replace("Microsoft","").strip()
windowsVersion = KBResult['basicInfo']['windowsVersion']
print("系统信息如下:")
print("{} {}".format(windowsProductName,windowsVersion))
tmpKBList = KBResult['KBList']
KBList = []
for KB in tmpKBList:
KBList.append(KB.replace("KB",""))
print("KB信息如下:")
print(KBList)
print("EXP信息如下:")
select_CVE(tmpList=KBList,windowsProductName=windowsProductName,windowsVersion=windowsVersion)
else:
print("请输入.json文件")
*本文作者：jerrybird，转载请注明来自FreeBuf.COM
来源：freebuf.com 2020-03-28 15:00:54 by: jerrybird
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