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Added certificate transparency monitoring via websockets for ingestion

This commit is contained in:
Dionysus 2024-03-05 11:48:53 -05:00
parent c05c48f3fe
commit be4938ee6e
Signed by: acidvegas
GPG Key ID: EF4B922DB85DC9DE
4 changed files with 190 additions and 3 deletions
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1
async_dev/eris.py
View File

@ -197,6 +197,7 @@ def main():
parser.add_argument('--timeout', type=int, default=30, help='Number of seconds to wait before retrying a chunk')
# Ingestion arguments
parser.add_argument('--cert', action='store_true', help='Index Certstream records')
parser.add_argument('--httpx', action='store_true', help='Index Httpx records')
parser.add_argument('--masscan', action='store_true', help='Index Masscan records')
parser.add_argument('--massdns', action='store_true', help='Index Massdns records')

180
async_dev/ingestors/ingest_certs.py Normal file
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@ -0,0 +1,180 @@
#!/usr/bin/env python
# Elasticsearch Recon Ingestion Scripts (ERIS) - Developed by Acidvegas (https://git.acid.vegas/eris)
# ingest_certstream.py
import asyncio
import json
import logging
try:
import websockets
except ImportError:
raise ImportError('Missing required \'websockets\' library. (pip install websockets)')
default_index = 'cert-stream'
def construct_map() -> dict:
'''Construct the Elasticsearch index mapping for Certstream records.'''
keyword_mapping = { 'type': 'text', 'fields': { 'keyword': { 'type': 'keyword', 'ignore_above': 256 } } }
mapping = {
'mappings': {
'properties': {
'data': {
'properties': {
'cert_index': { 'type': 'integer' },
'cert_link': { 'type': 'keyword' },
'leaf_cert': {
'properties': {
'all_domains': { 'type': 'keyword' },
'extensions': {
'properties': {
'authorityInfoAccess' : { 'type': 'text' },
'authorityKeyIdentifier' : { 'type': 'text' },
'basicConstraints' : { 'type': 'text' },
'certificatePolicies' : { 'type': 'text' },
'crlDistributionPoints' : { 'type': 'text' },
'ctlPoisonByte' : { 'type': 'boolean' },
'extendedKeyUsage' : { 'type': 'text' },
'keyUsage' : { 'type': 'text' },
'subjectAltName' : { 'type': 'text' },
'subjectKeyIdentifier' : { 'type': 'text' }
}
},
'fingerprint': { 'type': 'keyword' },
'issuer': {
'properties': {
'C' : { 'type': 'keyword' },
'CN' : { 'type': 'text' },
'L' : { 'type': 'text' },
'O' : { 'type': 'text' },
'OU' : { 'type': 'text' },
'ST' : { 'type': 'text' },
'aggregated' : { 'type': 'text' },
'emailAddress' : { 'type': 'text' }
}
},
'not_after': { 'type': 'integer' },
'not_before': { 'type': 'integer' },
'serial_number': { 'type': 'keyword' },
'signature_algorithm': { 'type': 'text' },
'subject': {
'properties': {
'C' : { 'type': 'keyword' },
'CN' : { 'type': 'text' },
'L' : { 'type': 'text' },
'O' : { 'type': 'text' },
'OU' : { 'type': 'text' },
'ST' : { 'type': 'text' },
'aggregated' : { 'type': 'text' },
'emailAddress' : { 'type': 'text' }
}
}
}
},
'seen': { 'type': 'date', 'format': 'epoch_second' },
'source': {
'properties': {
'name' : { 'type': 'keyword' },
'url' : { 'type': 'keyword' }
}
},
'update_type': { 'type': 'keyword' }
}
},
'message_type': { 'type': 'keyword' }
}
}
}
return mapping
async def process():
'''Read and process Certsream records live from the Websocket stream.'''
while True:
try:
async with websockets.connect('wss://certstream.calidog.io/') as websocket:
while True:
line = await websocket.recv()
try:
record = json.loads(line)
except json.decoder.JSONDecodeError:
logging.error(f'Failed to parse JSON record from Certstream! ({line})')
continue
yield record
except websockets.ConnectionClosed:
logging.error('Connection to Certstream was closed. Attempting to reconnect...')
await asyncio.sleep(10)
except Exception as e:
logging.error(f'An error occurred while processing Certstream records! ({e})')
await asyncio.sleep(10)
'''
Example record:
{
"data": {
"cert_index": 43061646,
"cert_link": "https://yeti2025.ct.digicert.com/log/ct/v1/get-entries?start=43061646&end=43061646",
"leaf_cert": {
"all_domains": [
"*.d7zdnegbre53n.amplifyapp.com",
"d7zdnegbre53n.amplifyapp.com"
],
"extensions": {
"authorityInfoAccess": "CA Issuers - URI:http://crt.r2m02.amazontrust.com/r2m02.cer\nOCSP - URI:http://ocsp.r2m02.amazontrust.com\n",
"authorityKeyIdentifier": "keyid:C0:31:52:CD:5A:50:C3:82:7C:74:71:CE:CB:E9:9C:F9:7A:EB:82:E2\n",
"basicConstraints": "CA:FALSE",
"certificatePolicies": "Policy: 2.23.140.1.2.1",
"crlDistributionPoints": "Full Name:\n URI:http://crl.r2m02.amazontrust.com/r2m02.crl",
"ctlPoisonByte": true,
"extendedKeyUsage": "TLS Web server authentication, TLS Web client authentication",
"keyUsage": "Digital Signature, Key Encipherment",
"subjectAltName": "DNS:d7zdnegbre53n.amplifyapp.com, DNS:*.d7zdnegbre53n.amplifyapp.com",
"subjectKeyIdentifier": "59:32:78:2A:11:03:62:55:BB:3B:B9:80:24:76:28:90:2E:D1:A4:56"
},
"fingerprint": "D9:05:A3:D5:AA:F9:68:BC:0C:0A:15:69:C9:5E:11:92:32:67:4F:FA",
"issuer": {
"C": "US",
"CN": "Amazon RSA 2048 M02",
"L": null,
"O": "Amazon",
"OU": null,
"ST": null,
"aggregated": "/C=US/CN=Amazon RSA 2048 M02/O=Amazon",
"emailAddress": null
},
"not_after": 1743811199,
"not_before": 1709596800,
"serial_number": "FDB450C1942E3D30A18737063449E62",
"signature_algorithm": "sha256, rsa",
"subject": {
"C": null,
"CN": "*.d7zdnegbre53n.amplifyapp.com",
"L": null,
"O": null,
"OU": null,
"ST": null,
"aggregated": "/CN=*.d7zdnegbre53n.amplifyapp.com",
"emailAddress": null
}
},
"seen": 1709651773.594684,
"source": {
"name": "DigiCert Yeti2025 Log",
"url": "https://yeti2025.ct.digicert.com/log/"
},
"update_type": "PrecertLogEntry"
},
"message_type": "certificate_update"
}
'''

11
async_dev/ingestors/ingest_masscan_async.py
View File

@ -19,6 +19,11 @@ import logging
import re
import time
try:
import aiofiles
except ImportError:
raise ImportError('Missing required \'aiofiles\' library. (pip install aiofiles)')
default_index = 'masscan-logs'
def construct_map() -> dict:
@ -54,15 +59,15 @@ def construct_map() -> dict:
return mapping
def process_file(file_path: str):
async def process_file(file_path: str):
'''
Read and process Masscan records from the log file.
:param file_path: Path to the Masscan log file
'''
with open(file_path, 'r') as file:
for line in file:
async with aiofiles.open(file_path, mode='r') as input_file:
async for line in input_file:
line = line.strip()
if not line or not line.startswith('{'):

1
eris.py
View File

@ -216,6 +216,7 @@ def main():
parser.add_argument('--timeout', type=int, default=30, help='Number of seconds to wait before retrying a chunk')
# Ingestion arguments
parser.add_argument('--cert', action='store_true', help='Index Certstream records')
parser.add_argument('--httpx', action='store_true', help='Index Httpx records')
parser.add_argument('--masscan', action='store_true', help='Index Masscan records')
parser.add_argument('--massdns', action='store_true', help='Index Massdns records')