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add json output #2

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335760b
add json output
knavesec Jul 18, 2023
fc42a16
mdi checking for governments
knavesec Jul 27, 2023
2e4ed7e
add chinese tenant query
knavesec Dec 21, 2023
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9 changes: 9 additions & 0 deletions README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -6,4 +6,13 @@ Based on: https://github.com/thalpius/Microsoft-Defender-for-Identity-Check-Inst

# Usage

Standard Usage
```./check_mdi.py -d <domain>```


JSON Output
```./check_mdi.py -d <domain> -j```


Query government tenants
```./check_mdi.py -d <domain> --gov```
92 changes: 65 additions & 27 deletions check_mdi.py
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Expand Up @@ -10,11 +10,13 @@
import dns.resolver
import xml.etree.ElementTree as ET
from urllib.request import urlopen, Request
import json


# Get domains
def get_domains(args):
domain = args.domain
json_out = {}

# Create a valid HTTP request
# Example from: https://docs.microsoft.com/en-us/openspecs/exchange_server_protocols/ms-oxwsadisc/18fe58cd-3761-49da-9e47-84e7b4db36c2
Expand All @@ -24,22 +26,22 @@ def get_domains(args):
xmlns:a="http://www.w3.org/2005/08/addressing"
xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
<soap:Header>
<a:RequestedServerVersion>Exchange2010</a:RequestedServerVersion>
<a:MessageID>urn:uuid:6389558d-9e05-465e-ade9-aae14c4bcd10</a:MessageID>
<a:Action soap:mustUnderstand="1">http://schemas.microsoft.com/exchange/2010/Autodiscover/Autodiscover/GetFederationInformation</a:Action>
<a:To soap:mustUnderstand="1">https://autodiscover.byfcxu-dom.extest.microsoft.com/autodiscover/autodiscover.svc</a:To>
<a:ReplyTo>
<a:Address>http://www.w3.org/2005/08/addressing/anonymous</a:Address>
</a:ReplyTo>
</soap:Header>
<soap:Body>
<GetFederationInformationRequestMessage xmlns="http://schemas.microsoft.com/exchange/2010/Autodiscover">
<Request>
<Domain>{domain}</Domain>
</Request>
</GetFederationInformationRequestMessage>
</soap:Body>
<soap:Header>
<a:RequestedServerVersion>Exchange2010</a:RequestedServerVersion>
<a:MessageID>urn:uuid:6389558d-9e05-465e-ade9-aae14c4bcd10</a:MessageID>
<a:Action soap:mustUnderstand="1">http://schemas.microsoft.com/exchange/2010/Autodiscover/Autodiscover/GetFederationInformation</a:Action>
<a:To soap:mustUnderstand="1">https://autodiscover.byfcxu-dom.extest.microsoft.com/autodiscover/autodiscover.svc</a:To>
<a:ReplyTo>
<a:Address>http://www.w3.org/2005/08/addressing/anonymous</a:Address>
</a:ReplyTo>
</soap:Header>
<soap:Body>
<GetFederationInformationRequestMessage xmlns="http://schemas.microsoft.com/exchange/2010/Autodiscover">
<Request>
<Domain>{domain}</Domain>
</Request>
</GetFederationInformationRequestMessage>
</soap:Body>
</soap:Envelope>"""

# Including HTTP headers
Expand All @@ -48,17 +50,26 @@ def get_domains(args):
"User-agent": "AutodiscoverClient"
}

url = "https://autodiscover-s.outlook.com/autodiscover/autodiscover.svc"
if args.gov:
url = "https://autodiscover-s.office365.us/autodiscover/autodiscover.svc"
elif args.cn:
url = "https://autodiscover-s.partner.outlook.cn/autodiscover/autodiscover.svc"

# Perform HTTP request
try:
httprequest = Request(
"https://autodiscover-s.outlook.com/autodiscover/autodiscover.svc", headers=headers, data=body.encode())
url, headers=headers, data=body.encode())

with urlopen(httprequest) as response:
response = response.read().decode()
except Exception:
print("[-] Unable to execute request. Wrong domain?")
if args.json:
print(json.dumps({"error":"Unable to execute request. Wrong domain"},indent=1))
else:
print("[-] Unable to execute request. Wrong domain?")
exit()

#print(response)
# Parse XML response
domains = []

Expand All @@ -67,20 +78,42 @@ def get_domains(args):
if elem.tag == "{http://schemas.microsoft.com/exchange/2010/Autodiscover}Domain":
domains.append(elem.text)

print("\n[+] Domains found:")
print(*domains, sep="\n")
if not args.json:
print("\n[+] Domains found:")
print(*domains, sep="\n")
else:
json_out["domains"] = domains

# Get tenant name
tenant = ""

for domain in domains:
if "onmicrosoft.com" in domain:
tenant = domain.split(".")[0]

print(f"\n[+] Tenant found: \n{tenant}")

if not args.json:
print(f"\n[+] Tenant found: \n{tenant}")
else:
json_out["tenant"] = tenant

# Call check_mdi() with tenant
check_mdi(tenant)
mdi_check = check_mdi(tenant)

if args.json:
if mdi_check:
json_out["mdi"] = True
else:
json_out["mdi"] = False
else:
if mdi_check:
print(f"\n[+] An MDI instance was found for {tenant}!\n")
else:
print(f"\n[-] No MDI instance was found for {tenant}\n")


if args.json:
print(json.dumps(json_out, indent=2))



# Identify MDI usage
Expand All @@ -91,15 +124,20 @@ def check_mdi(tenant):
# Check if MDI instance exists
try:
dns.resolver.resolve(tenant)
print(f"\n[+] An MDI instance was found for {tenant}!\n")
return True
except Exception:
print(f"\n[-] No MDI instance was found for {tenant}\n")

return False

if __name__ == "__main__":
parser = argparse.ArgumentParser(
description="Enumerates valid Microsoft 365 domains, retrieves tenant name, and checks for MDI instance")
parser.add_argument(
"-d", "--domain", help="input domain name, example format: example.com", required=True)
parser.add_argument(
"-j", "--json", action="store_true", help="output in JSON format", required=False)
parser.add_argument(
"--gov", action="store_true", help="query government tenancy", required=False)
parser.add_argument(
"--cn", action="store_true", help="query chinese tenancy", required=False)
args = parser.parse_args()
get_domains(args)