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SecretFinder.py
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SecretFinder.py
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#!/usr/bin/env python3
# -*- coding:utf-8 -*-
# SecretFinder: Burp Suite Extension to find and search apikeys/tokens from a webpage
# by m4ll0k
# https://github.com/m4ll0k
# Code Credits:
# OpenSecurityResearch CustomPassiveScanner: https://github.com/OpenSecurityResearch/CustomPassiveScanner
# PortSwigger example-scanner-checks: https://github.com/PortSwigger/example-scanner-checks
# https://github.com/redhuntlabs/BurpSuite-Asset_Discover/blob/master/Asset_Discover.py
from burp import IBurpExtender
from burp import IScannerCheck
from burp import IScanIssue
from array import array
import re
import binascii
import base64
import xml.sax.saxutils as saxutils
class BurpExtender(IBurpExtender, IScannerCheck):
def registerExtenderCallbacks(self, callbacks):
self._callbacks = callbacks
self._callbacks.setExtensionName("SecretFinder")
self._callbacks.registerScannerCheck(self)
return
def consolidateDuplicateIssues(self, existingIssue, newIssue):
if (existingIssue.getIssueDetail() == newIssue.getIssueDetail()):
return -1
else:
return 0
# add your regex here
regexs = {
'google_api' : 'AIza[0-9A-Za-z-_]{35}',
'docs_file_exetension' : '^.*\.(xls|xlsx|doc|docx)$',
'bitcoin_address' : '([13][a-km-zA-HJ-NP-Z0-9]{26,33})',
'slack_api_key' : 'xox.-[0-9]{12}-[0-9]{12}-[0-9a-zA-Z]{24}',
'us_cn_zipcode' : '/(^\d{5}(-\d{4})?$)|(^[ABCEGHJKLMNPRSTVXY]{1}\d{1}[A-Z]{1} *\d{1}[A-Z]{1}\d{1}$)/',
'google_cloud_platform_auth' : '[0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[0-9a-fA-F]{12}',
'google_cloud_platform_api' : '[A-Za-z0-9_]{21}--[A-Za-z0-9_]{8}',
'amazon_secret_key' : '[0-9a-zA-Z/+]{40}',
'gmail_auth_token' : '[0-9(+-[0-9A-Za-z_]{32}.apps.qooqleusercontent.com',
'github_auth_token' : '[0-9a-fA-F]{40}',
'Instagram_token' : '[0-9a-fA-F]{7}.[0-9a-fA-F]{32}',
'twitter_access_token' : '[1-9][ 0-9]+-(0-9a-zA-Z]{40}',
'firebase' : 'AAAA[A-Za-z0-9_-]{7}:[A-Za-z0-9_-]{140}',
'google_captcha' : '6L[0-9A-Za-z-_]{38}|^6[0-9a-zA-Z_-]{39}$',
'google_oauth' : 'ya29\.[0-9A-Za-z\-_]+',
'amazon_aws_access_key_id' : 'A[SK]IA[0-9A-Z]{16}',
'amazon_mws_auth_toke' : 'amzn\\.mws\\.[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}',
'amazon_aws_url' : 's3\.amazonaws.com[/]+|[a-zA-Z0-9_-]*\.s3\.amazonaws.com',
'facebook_access_token' : 'EAACEdEose0cBA[0-9A-Za-z]+',
'authorization_basic' : 'basic\s*[a-zA-Z0-9=:_\+\/-]+',
'authorization_bearer' : 'bearer\s*[a-zA-Z0-9_\-\.=:_\+\/]+',
'authorization_api' : 'api[key|\s*]+[a-zA-Z0-9_\-]+',
'mailgun_api_key' : 'key-[0-9a-zA-Z]{32}',
'twilio_api_key' : 'SK[0-9a-fA-F]{32}',
'twilio_account_sid' : 'AC[a-zA-Z0-9_\-]{32}',
'twilio_app_sid' : 'AP[a-zA-Z0-9_\-]{32}',
'paypal_braintree_access_token' : 'access_token\$production\$[0-9a-z]{16}\$[0-9a-f]{32}',
'square_oauth_secret' : 'sq0csp-[ 0-9A-Za-z\-_]{43}|sq0[a-z]{3}-[0-9A-Za-z\-_]{22,43}',
'square_access_token' : 'sqOatp-[0-9A-Za-z\-_]{22}|EAAA[a-zA-Z0-9]{60}',
'stripe_standard_api' : 'sk_live_[0-9a-zA-Z]{24}',
'stripe_restricted_api' : 'rk_live_[0-9a-zA-Z]{24}',
'github_access_token' : '[a-zA-Z0-9_-]*:[a-zA-Z0-9_\-]+@github\.com*',
'rsa_private_key' : '-----BEGIN RSA PRIVATE KEY-----',
'ssh_dsa_private_key' : '-----BEGIN DSA PRIVATE KEY-----',
'ssh_dc_private_key' : '-----BEGIN EC PRIVATE KEY-----',
'pgp_private_block' : '-----BEGIN PGP PRIVATE KEY BLOCK-----',
'json_web_token' : 'ey[A-Za-z0-9_-]*\.[A-Za-z0-9._-]*|ey[A-Za-z0-9_\/+-]*\.[A-Za-z0-9._\/+-]*'
}
regex = r"[:|=|\'|\"|\s*|`|´| |,|?=|\]|\|//|/\*}](%%regex%%)[:|=|\'|\"|\s*|`|´| |,|?=|\]|\}|&|//|\*/]"
issuename = "SecretFinder: %s"
issuelevel = "Information"
issuedetail = r"""Potential Secret Find: <b>%%regex%%</b>
<br><br><b>Note:</b> Please note that some of these issues could be false positives, a manual review is recommended."""
def doActiveScan(self, baseRequestResponse,pa):
scan_issues = []
tmp_issues = []
self._CustomScans = CustomScans(baseRequestResponse, self._callbacks)
for reg in self.regexs.items():
tmp_issues = self._CustomScans.findRegEx(
BurpExtender.regex.replace(r'%%regex%%',reg[1]),
BurpExtender.issuename%(' '.join([x.title() for x in reg[0].split('_')])),
BurpExtender.issuelevel,
BurpExtender.issuedetail
)
scan_issues = scan_issues + tmp_issues
if len(scan_issues) > 0:
return scan_issues
else:
return None
def doPassiveScan(self, baseRequestResponse):
scan_issues = []
tmp_issues = []
self._CustomScans = CustomScans(baseRequestResponse, self._callbacks)
for reg in self.regexs.items():
tmp_issues = self._CustomScans.findRegEx(
BurpExtender.regex.replace(r'%%regex%%',reg[1]),
BurpExtender.issuename%(' '.join([x.title() for x in reg[0].split('_')])),
BurpExtender.issuelevel,
BurpExtender.issuedetail
)
scan_issues = scan_issues + tmp_issues
if len(scan_issues) > 0:
return scan_issues
else:
return None
class CustomScans:
def __init__(self, requestResponse, callbacks):
self._requestResponse = requestResponse
self._callbacks = callbacks
self._helpers = self._callbacks.getHelpers()
self._mime_type = self._helpers.analyzeResponse(self._requestResponse.getResponse()).getStatedMimeType()
return
def findRegEx(self, regex, issuename, issuelevel, issuedetail):
print(self._mime_type)
if '.js' in str(self._requestResponse.getUrl()):
print(self._mime_type)
print(self._requestResponse.getUrl())
scan_issues = []
offset = array('i', [0, 0])
response = self._requestResponse.getResponse()
responseLength = len(response)
if self._callbacks.isInScope(self._helpers.analyzeRequest(self._requestResponse).getUrl()):
myre = re.compile(regex, re.VERBOSE)
encoded_resp=binascii.b2a_base64(self._helpers.bytesToString(response))
decoded_resp=base64.b64decode(encoded_resp)
decoded_resp = saxutils.unescape(decoded_resp)
match_vals = myre.findall(decoded_resp)
for ref in match_vals:
url = self._helpers.analyzeRequest(self._requestResponse).getUrl()
offsets = []
start = self._helpers.indexOf(response,
ref, True, 0, responseLength)
offset[0] = start
offset[1] = start + len(ref)
offsets.append(offset)
try:
print("%s : %s"%(issuename.split(':')[1],ref))
scan_issues.append(ScanIssue(self._requestResponse.getHttpService(),
self._helpers.analyzeRequest(self._requestResponse).getUrl(),
[self._callbacks.applyMarkers(self._requestResponse, None, offsets)],
issuename, issuelevel, issuedetail.replace(r"%%regex%%", ref)))
except:
continue
return (scan_issues)
class ScanIssue(IScanIssue):
def __init__(self, httpservice, url, requestresponsearray, name, severity, detailmsg):
self._url = url
self._httpservice = httpservice
self._requestresponsearray = requestresponsearray
self._name = name
self._severity = severity
self._detailmsg = detailmsg
def getUrl(self):
return self._url
def getHttpMessages(self):
return self._requestresponsearray
def getHttpService(self):
return self._httpservice
def getRemediationDetail(self):
return None
def getIssueDetail(self):
return self._detailmsg
def getIssueBackground(self):
return None
def getRemediationBackground(self):
return None
def getIssueType(self):
return 0
def getIssueName(self):
return self._name
def getSeverity(self):
return self._severity
def getConfidence(self):
return "Tentative"