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mitmproxy/examples/contrib/test_xss_scanner.py
Maximilian Hils 08895e9ba6 restructure examples 
- restructure examples (fix #4031)
 - remove example dependencies from setup.py,
   we do not need special dependencies for our supported addons.
 - unify how we generate docs from code
 - improve example docs
2020-06-23 16:00:14 +02:00

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import pytest
import requests
from examples.complex import xss_scanner as xss
from mitmproxy.test import tflow, tutils
class TestXSSScanner():
def test_get_XSS_info(self):
# First type of exploit: <script>PAYLOAD</script>
# Exploitable:
xss_info = xss.get_XSS_data(b"<html><script>%s</script><html>" %
xss.FULL_PAYLOAD,
"https://example.com",
"End of URL")
expected_xss_info = xss.XSSData('https://example.com',
"End of URL",
'</script><script>alert(0)</script><script>',
xss.FULL_PAYLOAD.decode('utf-8'))
assert xss_info == expected_xss_info
xss_info = xss.get_XSS_data(b"<html><script>%s</script><html>" %
xss.FULL_PAYLOAD.replace(b"'", b"%27").replace(b'"', b"%22"),
"https://example.com",
"End of URL")
expected_xss_info = xss.XSSData("https://example.com",
"End of URL",
'</script><script>alert(0)</script><script>',
xss.FULL_PAYLOAD.replace(b"'", b"%27").replace(b'"', b"%22").decode('utf-8'))
assert xss_info == expected_xss_info
# Non-Exploitable:
xss_info = xss.get_XSS_data(b"<html><script>%s</script><html>" %
xss.FULL_PAYLOAD.replace(b"'", b"%27").replace(b'"', b"%22").replace(b"/", b"%2F"),
"https://example.com",
"End of URL")
assert xss_info is None
# Second type of exploit: <script>t='PAYLOAD'</script>
# Exploitable:
xss_info = xss.get_XSS_data(b"<html><script>t='%s';</script></html>" %
xss.FULL_PAYLOAD.replace(b"<", b"%3C").replace(b">", b"%3E").replace(b"\"", b"%22"),
"https://example.com",
"End of URL")
expected_xss_info = xss.XSSData("https://example.com",
"End of URL",
"';alert(0);g='",
xss.FULL_PAYLOAD.replace(b"<", b"%3C").replace(b">", b"%3E")
.replace(b"\"", b"%22").decode('utf-8'))
assert xss_info == expected_xss_info
# Non-Exploitable:
xss_info = xss.get_XSS_data(b"<html><script>t='%s';</script></html>" %
xss.FULL_PAYLOAD.replace(b"<", b"%3C").replace(b"\"", b"%22").replace(b"'", b"%22"),
"https://example.com",
"End of URL")
assert xss_info is None
# Third type of exploit: <script>t="PAYLOAD"</script>
# Exploitable:
xss_info = xss.get_XSS_data(b"<html><script>t=\"%s\";</script></html>" %
xss.FULL_PAYLOAD.replace(b"<", b"%3C").replace(b">", b"%3E").replace(b"'", b"%27"),
"https://example.com",
"End of URL")
expected_xss_info = xss.XSSData("https://example.com",
"End of URL",
'";alert(0);g="',
xss.FULL_PAYLOAD.replace(b"<", b"%3C").replace(b">", b"%3E")
.replace(b"'", b"%27").decode('utf-8'))
assert xss_info == expected_xss_info
# Non-Exploitable:
xss_info = xss.get_XSS_data(b"<html><script>t=\"%s\";</script></html>" %
xss.FULL_PAYLOAD.replace(b"<", b"%3C").replace(b"'", b"%27").replace(b"\"", b"%22"),
"https://example.com",
"End of URL")
assert xss_info is None
# Fourth type of exploit: <a href='PAYLOAD'>Test</a>
# Exploitable:
xss_info = xss.get_XSS_data(b"<html><a href='%s'>Test</a></html>" %
xss.FULL_PAYLOAD,
"https://example.com",
"End of URL")
expected_xss_info = xss.XSSData("https://example.com",
"End of URL",
"'><script>alert(0)</script>",
xss.FULL_PAYLOAD.decode('utf-8'))
assert xss_info == expected_xss_info
# Non-Exploitable:
xss_info = xss.get_XSS_data(b"<html><a href='OtherStuff%s'>Test</a></html>" %
xss.FULL_PAYLOAD.replace(b"'", b"%27"),
"https://example.com",
"End of URL")
assert xss_info is None
# Fifth type of exploit: <a href="PAYLOAD">Test</a>
# Exploitable:
xss_info = xss.get_XSS_data(b"<html><a href=\"%s\">Test</a></html>" %
xss.FULL_PAYLOAD.replace(b"'", b"%27"),
"https://example.com",
"End of URL")
expected_xss_info = xss.XSSData("https://example.com",
"End of URL",
"\"><script>alert(0)</script>",
xss.FULL_PAYLOAD.replace(b"'", b"%27").decode('utf-8'))
assert xss_info == expected_xss_info
# Non-Exploitable:
xss_info = xss.get_XSS_data(b"<html><a href=\"OtherStuff%s\">Test</a></html>" %
xss.FULL_PAYLOAD.replace(b"'", b"%27").replace(b"\"", b"%22"),
"https://example.com",
"End of URL")
assert xss_info is None
# Sixth type of exploit: <a href=PAYLOAD>Test</a>
# Exploitable:
xss_info = xss.get_XSS_data(b"<html><a href=%s>Test</a></html>" %
xss.FULL_PAYLOAD,
"https://example.com",
"End of URL")
expected_xss_info = xss.XSSData("https://example.com",
"End of URL",
"><script>alert(0)</script>",
xss.FULL_PAYLOAD.decode('utf-8'))
assert xss_info == expected_xss_info
# Non-Exploitable
xss_info = xss.get_XSS_data(b"<html><a href=OtherStuff%s>Test</a></html>" %
xss.FULL_PAYLOAD.replace(b"<", b"%3C").replace(b">", b"%3E")
.replace(b"=", b"%3D"),
"https://example.com",
"End of URL")
assert xss_info is None
# Seventh type of exploit: <html>PAYLOAD</html>
# Exploitable:
xss_info = xss.get_XSS_data(b"<html><b>%s</b></html>" %
xss.FULL_PAYLOAD,
"https://example.com",
"End of URL")
expected_xss_info = xss.XSSData("https://example.com",
"End of URL",
"<script>alert(0)</script>",
xss.FULL_PAYLOAD.decode('utf-8'))
assert xss_info == expected_xss_info
# Non-Exploitable
xss_info = xss.get_XSS_data(b"<html><b>%s</b></html>" %
xss.FULL_PAYLOAD.replace(b"<", b"%3C").replace(b">", b"%3E").replace(b"/", b"%2F"),
"https://example.com",
"End of URL")
assert xss_info is None
# Eighth type of exploit: <a href=PAYLOAD>Test</a>
# Exploitable:
xss_info = xss.get_XSS_data(b"<html><a href=%s>Test</a></html>" %
xss.FULL_PAYLOAD.replace(b"<", b"%3C").replace(b">", b"%3E"),
"https://example.com",
"End of URL")
expected_xss_info = xss.XSSData("https://example.com",
"End of URL",
"Javascript:alert(0)",
xss.FULL_PAYLOAD.replace(b"<", b"%3C").replace(b">", b"%3E").decode('utf-8'))
assert xss_info == expected_xss_info
# Non-Exploitable:
xss_info = xss.get_XSS_data(b"<html><a href=OtherStuff%s>Test</a></html>" %
xss.FULL_PAYLOAD.replace(b"<", b"%3C").replace(b">", b"%3E")
.replace(b"=", b"%3D"),
"https://example.com",
"End of URL")
assert xss_info is None
# Ninth type of exploit: <a href="STUFF PAYLOAD">Test</a>
# Exploitable:
xss_info = xss.get_XSS_data(b"<html><a href=\"STUFF %s\">Test</a></html>" %
xss.FULL_PAYLOAD.replace(b"<", b"%3C").replace(b">", b"%3E"),
"https://example.com",
"End of URL")
expected_xss_info = xss.XSSData("https://example.com",
"End of URL",
'" onmouseover="alert(0)" t="',
xss.FULL_PAYLOAD.replace(b"<", b"%3C").replace(b">", b"%3E").decode('utf-8'))
assert xss_info == expected_xss_info
# Non-Exploitable:
xss_info = xss.get_XSS_data(b"<html><a href=\"STUFF %s\">Test</a></html>" %
xss.FULL_PAYLOAD.replace(b"<", b"%3C").replace(b">", b"%3E")
.replace(b'"', b"%22"),
"https://example.com",
"End of URL")
assert xss_info is None
# Tenth type of exploit: <a href='STUFF PAYLOAD'>Test</a>
# Exploitable:
xss_info = xss.get_XSS_data(b"<html><a href='STUFF %s'>Test</a></html>" %
xss.FULL_PAYLOAD.replace(b"<", b"%3C").replace(b">", b"%3E"),
"https://example.com",
"End of URL")
expected_xss_info = xss.XSSData("https://example.com",
"End of URL",
"' onmouseover='alert(0)' t='",
xss.FULL_PAYLOAD.replace(b"<", b"%3C").replace(b">", b"%3E").decode('utf-8'))
assert xss_info == expected_xss_info
# Non-Exploitable:
xss_info = xss.get_XSS_data(b"<html><a href='STUFF %s'>Test</a></html>" %
xss.FULL_PAYLOAD.replace(b"<", b"%3C").replace(b">", b"%3E")
.replace(b"'", b"%22"),
"https://example.com",
"End of URL")
assert xss_info is None
# Eleventh type of exploit: <a href=STUFF_PAYLOAD>Test</a>
# Exploitable:
xss_info = xss.get_XSS_data(b"<html><a href=STUFF%s>Test</a></html>" %
xss.FULL_PAYLOAD.replace(b"<", b"%3C").replace(b">", b"%3E"),
"https://example.com",
"End of URL")
expected_xss_info = xss.XSSData("https://example.com",
"End of URL",
" onmouseover=alert(0) t=",
xss.FULL_PAYLOAD.replace(b"<", b"%3C").replace(b">", b"%3E").decode('utf-8'))
assert xss_info == expected_xss_info
# Non-Exploitable:
xss_info = xss.get_XSS_data(b"<html><a href=STUFF_%s>Test</a></html>" %
xss.FULL_PAYLOAD.replace(b"<", b"%3C").replace(b">", b"%3E")
.replace(b"=", b"%3D"),
"https://example.com",
"End of URL")
assert xss_info is None
def test_get_SQLi_data(self):
sqli_data = xss.get_SQLi_data("<html>SQL syntax MySQL</html>",
"<html></html>",
"https://example.com",
"End of URL")
expected_sqli_data = xss.SQLiData("https://example.com",
"End of URL",
"SQL syntax.*MySQL",
"MySQL")
assert sqli_data == expected_sqli_data
sqli_data = xss.get_SQLi_data("<html>SQL syntax MySQL</html>",
"<html>SQL syntax MySQL</html>",
"https://example.com",
"End of URL")
assert sqli_data is None
def test_inside_quote(self):
assert not xss.inside_quote("'", b"no", 0, b"no")
assert xss.inside_quote("'", b"yes", 0, b"'yes'")
assert xss.inside_quote("'", b"yes", 1, b"'yes'otherJunk'yes'more")
assert not xss.inside_quote("'", b"longStringNotInIt", 1, b"short")
def test_paths_to_text(self):
text = xss.paths_to_text("""<html><head><h1>STRING</h1></head>
<script>STRING</script>
<a href=STRING></a></html>""", "STRING")
expected_text = ["/html/head/h1", "/html/script"]
assert text == expected_text
assert xss.paths_to_text("""<html></html>""", "STRING") == []
def mocked_requests_vuln(*args, headers=None, cookies=None):
class MockResponse:
def __init__(self, html, headers=None, cookies=None):
self.text = html
return MockResponse("<html>%s</html>" % xss.FULL_PAYLOAD)
def mocked_requests_invuln(*args, headers=None, cookies=None):
class MockResponse:
def __init__(self, html, headers=None, cookies=None):
self.text = html
return MockResponse("<html></html>")
def test_test_end_of_url_injection(self, get_request_vuln):
xss_info = xss.test_end_of_URL_injection("<html></html>", "https://example.com/index.html", {})[0]
expected_xss_info = xss.XSSData('https://example.com/index.html/1029zxcs\'d"ao<ac>so[sb]po(pc)se;sl/bsl\\eq=3847asd',
'End of URL',
'<script>alert(0)</script>',
'1029zxcs\\\'d"ao<ac>so[sb]po(pc)se;sl/bsl\\\\eq=3847asd')
sqli_info = xss.test_end_of_URL_injection("<html></html>", "https://example.com/", {})[1]
assert xss_info == expected_xss_info
assert sqli_info is None
def test_test_referer_injection(self, get_request_vuln):
xss_info = xss.test_referer_injection("<html></html>", "https://example.com/", {})[0]
expected_xss_info = xss.XSSData('https://example.com/',
'Referer',
'<script>alert(0)</script>',
'1029zxcs\\\'d"ao<ac>so[sb]po(pc)se;sl/bsl\\\\eq=3847asd')
sqli_info = xss.test_referer_injection("<html></html>", "https://example.com/", {})[1]
assert xss_info == expected_xss_info
assert sqli_info is None
def test_test_user_agent_injection(self, get_request_vuln):
xss_info = xss.test_user_agent_injection("<html></html>", "https://example.com/", {})[0]
expected_xss_info = xss.XSSData('https://example.com/',
'User Agent',
'<script>alert(0)</script>',
'1029zxcs\\\'d"ao<ac>so[sb]po(pc)se;sl/bsl\\\\eq=3847asd')
sqli_info = xss.test_user_agent_injection("<html></html>", "https://example.com/", {})[1]
assert xss_info == expected_xss_info
assert sqli_info is None
def test_test_query_injection(self, get_request_vuln):
xss_info = xss.test_query_injection("<html></html>", "https://example.com/vuln.php?cmd=ls", {})[0]
expected_xss_info = xss.XSSData('https://example.com/vuln.php?cmd=1029zxcs\'d"ao<ac>so[sb]po(pc)se;sl/bsl\\eq=3847asd',
'Query',
'<script>alert(0)</script>',
'1029zxcs\\\'d"ao<ac>so[sb]po(pc)se;sl/bsl\\\\eq=3847asd')
sqli_info = xss.test_query_injection("<html></html>", "https://example.com/vuln.php?cmd=ls", {})[1]
assert xss_info == expected_xss_info
assert sqli_info is None
@pytest.fixture(scope='function')
def logger(self, monkeypatch):
class Logger():
def __init__(self):
self.args = []
def info(self, str):
self.args.append(str)
def error(self, str):
self.args.append(str)
logger = Logger()
monkeypatch.setattr("mitmproxy.ctx.log", logger)
yield logger
@pytest.fixture(scope='function')
def get_request_vuln(self, monkeypatch):
monkeypatch.setattr(requests, 'get', self.mocked_requests_vuln)
@pytest.fixture(scope='function')
def get_request_invuln(self, monkeypatch):
monkeypatch.setattr(requests, 'get', self.mocked_requests_invuln)
@pytest.fixture(scope='function')
def mock_gethostbyname(self, monkeypatch):
def gethostbyname(domain):
claimed_domains = ["google.com"]
if domain not in claimed_domains:
from socket import gaierror
raise gaierror("[Errno -2] Name or service not known")
else:
return '216.58.221.46'
monkeypatch.setattr("socket.gethostbyname", gethostbyname)
def test_find_unclaimed_URLs(self, logger, mock_gethostbyname):
xss.find_unclaimed_URLs("<html><script src=\"http://google.com\"></script></html>",
"https://example.com")
assert logger.args == []
xss.find_unclaimed_URLs("<html><script src=\"http://unclaimedDomainName.com\"></script></html>",
"https://example.com")
assert logger.args[0] == 'XSS found in https://example.com due to unclaimed URL "http://unclaimedDomainName.com".'
xss.find_unclaimed_URLs("<html><iframe src=\"http://unclaimedDomainName.com\"></iframe></html>",
"https://example.com")
assert logger.args[1] == 'XSS found in https://example.com due to unclaimed URL "http://unclaimedDomainName.com".'
xss.find_unclaimed_URLs("<html><link rel=\"stylesheet\" href=\"http://unclaimedDomainName.com\"></html>",
"https://example.com")
assert logger.args[2] == 'XSS found in https://example.com due to unclaimed URL "http://unclaimedDomainName.com".'
def test_log_XSS_data(self, logger):
xss.log_XSS_data(None)
assert logger.args == []
# self, url: str, injection_point: str, exploit: str, line: str
xss.log_XSS_data(xss.XSSData('https://example.com',
'Location',
'String',
'Line of HTML'))
assert logger.args[0] == '===== XSS Found ===='
assert logger.args[1] == 'XSS URL: https://example.com'
assert logger.args[2] == 'Injection Point: Location'
assert logger.args[3] == 'Suggested Exploit: String'
assert logger.args[4] == 'Line: Line of HTML'
def test_log_SQLi_data(self, logger):
xss.log_SQLi_data(None)
assert logger.args == []
xss.log_SQLi_data(xss.SQLiData('https://example.com',
'Location',
'Oracle.*Driver',
'Oracle'))
assert logger.args[0] == '===== SQLi Found ====='
assert logger.args[1] == 'SQLi URL: https://example.com'
assert logger.args[2] == 'Injection Point: Location'
assert logger.args[3] == 'Regex used: Oracle.*Driver'
def test_get_cookies(self):
mocked_req = tutils.treq()
mocked_req.cookies = [("cookieName2", "cookieValue2")]
mocked_flow = tflow.tflow(req=mocked_req)
# It only uses the request cookies
assert xss.get_cookies(mocked_flow) == {"cookieName2": "cookieValue2"}
def test_response(self, get_request_invuln, logger):
mocked_flow = tflow.tflow(
req=tutils.treq(path=b"index.html?q=1"),
resp=tutils.tresp(content=b'<html></html>')
)
xss.response(mocked_flow)
assert logger.args == []
def test_data_equals(self):
xssData = xss.XSSData("a", "b", "c", "d")
sqliData = xss.SQLiData("a", "b", "c", "d")
assert xssData == xssData
assert sqliData == sqliData
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