def write_vuln_to_kb(vulnty, url, funcs):
vulndata = php_sca.KB_DATA[vulnty]
for f in funcs:
vuln_sev = vulndata['severity']
desc = name = vulndata['name']
v = Vuln(name, desc, vuln_sev, 1, 'PHP Static Code Analyzer')
v.set_uri(url)
v.set_var(f.vulnsources[0])
args = list(vulndata['kb_key']) + [v]
# TODO: Extract the method from the PHP code
# $_GET == GET
# $_POST == POST
# $_REQUEST == GET
v.set_method('GET')
# TODO: Extract all the other variables that are
# present in the PHP file using the SCA
v.set_dc(DataContainer())
#
# TODO: This needs to be checked! OS Commanding specific
# attributes.
v['os'] = 'unix'
v['separator'] = ''
kb.kb.append(*args)
def _classic_worker(self, gh, search_term):
'''
Perform the searches and store the results in the kb.
'''
google_list = self._google_se.get_n_results(search_term, 9)
for result in google_list:
# I found a vuln in the site!
response = self._uri_opener.GET(result.URL, cache=True)
if not is_404(response):
desc = 'ghdb plugin found a vulnerability at URL: "%s".' \
' According to GHDB the vulnerability description'\
' is "%s".'
desc = desc % (response.get_url(), gh.desc)
v = Vuln('Google hack database match', desc,
severity.MEDIUM, response.id, self.get_name())
v.set_url(response.get_url())
v.set_method('GET')
kb.kb.append(self, 'vuln', v)
om.out.vulnerability(v.get_desc(), severity=severity.LOW)
# Create the fuzzable requests
for fr in self._create_fuzzable_requests(response):
self.output_queue.put(fr)
def _SEARCH(self, domain_path):
'''
Test SEARCH method.
'''
content = "<?xml version='1.0'?>\r\n"
content += "<g:searchrequest xmlns:g='DAV:'>\r\n"
content += "<g:sql>\r\n"
content += "Select 'DAV:displayname' from scope()\r\n"
content += "</g:sql>\r\n"
content += "</g:searchrequest>\r\n"
res = self._uri_opener.SEARCH(domain_path, data=content)
content_matches = '<a:response>' in res or '<a:status>' in res or \
'xmlns:a="DAV:"' in res
if content_matches and res.get_code() in xrange(200, 300):
msg = 'Directory listing with HTTP SEARCH method was found at' \
'directory: "%s".' % domain_path
v = Vuln('Insecure DAV configuration', msg, severity.MEDIUM,
res.id, self.get_name())
v.set_url(res.get_url())
v.set_method('SEARCH')
self.kb_append(self, 'dav', v)
def _PROPFIND(self, domain_path):
'''
Test PROPFIND method
'''
content = "<?xml version='1.0'?>\r\n"
content += "<a:propfind xmlns:a='DAV:'>\r\n"
content += "<a:prop>\r\n"
content += "<a:displayname:/>\r\n"
content += "</a:prop>\r\n"
content += "</a:propfind>\r\n"
hdrs = Headers([('Depth', '1')])
res = self._uri_opener.PROPFIND(
domain_path, data=content, headers=hdrs)
if "D:href" in res and res.get_code() in xrange(200, 300):
msg = 'Directory listing with HTTP PROPFIND method was found at' \
' directory: "%s".' % domain_path
v = Vuln('Insecure DAV configuration', msg, severity.MEDIUM,
res.id, self.get_name())
v.set_url(res.get_url())
v.set_method('PROPFIND')
self.kb_append(self, 'dav', v)
def _PROPFIND(self, domain_path):
'''
Test PROPFIND method
'''
content = "<?xml version='1.0'?>\r\n"
content += "<a:propfind xmlns:a='DAV:'>\r\n"
content += "<a:prop>\r\n"
content += "<a:displayname:/>\r\n"
content += "</a:prop>\r\n"
content += "</a:propfind>\r\n"
hdrs = Headers([('Depth', '1')])
res = self._uri_opener.PROPFIND(domain_path,
data=content,
headers=hdrs)
if "D:href" in res and res.get_code() in xrange(200, 300):
msg = 'Directory listing with HTTP PROPFIND method was found at' \
' directory: "%s".' % domain_path
v = Vuln('Insecure DAV configuration', msg, severity.MEDIUM,
res.id, self.get_name())
v.set_url(res.get_url())
v.set_method('PROPFIND')
self.kb_append(self, 'dav', v)
def write_vuln_to_kb(vulnty, url, funcs):
vulndata = php_sca.KB_DATA[vulnty]
for f in funcs:
vuln_sev = vulndata['severity']
desc = name = vulndata['name']
v = Vuln(name, desc, vuln_sev, 1, 'PHP Static Code Analyzer')
v.set_uri(url)
v.set_var(f.vulnsources[0])
args = list(vulndata['kb_key']) + [v]
# TODO: Extract the method from the PHP code
# $_GET == GET
# $_POST == POST
# $_REQUEST == GET
v.set_method('GET')
# TODO: Extract all the other variables that are
# present in the PHP file using the SCA
v.set_dc(DataContainer())
#
# TODO: This needs to be checked! OS Commanding specific
# attributes.
v['os'] = 'unix'
v['separator'] = ''
kb.kb.append(*args)
def _SEARCH(self, domain_path):
'''
Test SEARCH method.
'''
content = "<?xml version='1.0'?>\r\n"
content += "<g:searchrequest xmlns:g='DAV:'>\r\n"
content += "<g:sql>\r\n"
content += "Select 'DAV:displayname' from scope()\r\n"
content += "</g:sql>\r\n"
content += "</g:searchrequest>\r\n"
res = self._uri_opener.SEARCH(domain_path, data=content)
content_matches = '<a:response>' in res or '<a:status>' in res or \
'xmlns:a="DAV:"' in res
if content_matches and res.get_code() in xrange(200, 300):
msg = 'Directory listing with HTTP SEARCH method was found at' \
'directory: "%s".' % domain_path
v = Vuln('Insecure DAV configuration', msg, severity.MEDIUM,
res.id, self.get_name())
v.set_url(res.get_url())
v.set_method('SEARCH')
self.kb_append(self, 'dav', v)
def _PUT(self, domain_path):
'''
Tests PUT method.
'''
# upload
url = domain_path.url_join(rand_alpha(5))
rnd_content = rand_alnum(6)
put_response = self._uri_opener.PUT(url, data=rnd_content)
# check if uploaded
res = self._uri_opener.GET(url, cache=True)
if res.get_body() == rnd_content:
msg = 'File upload with HTTP PUT method was found at resource:' \
' "%s". A test file was uploaded to: "%s".'
msg = msg % (domain_path, res.get_url())
v = Vuln('Insecure DAV configuration', msg, severity.HIGH,
[put_response.id, res.id], self.get_name())
v.set_url(url)
v.set_method('PUT')
self.kb_append(self, 'dav', v)
# Report some common errors
elif put_response.get_code() == 500:
msg = 'DAV seems to be incorrectly configured. The web server' \
' answered with a 500 error code. In most cases, this means'\
' that the DAV extension failed in some way. This error was'\
' found at: "%s".' % put_response.get_url()
i = Info('DAV incorrect configuration', msg, res.id,
self.get_name())
i.set_url(url)
i.set_method('PUT')
self.kb_append(self, 'dav', i)
# Report some common errors
elif put_response.get_code() == 403:
msg = 'DAV seems to be correctly configured and allowing you to'\
' use the PUT method but the directory does not have the'\
' correct permissions that would allow the web server to'\
' write to it. This error was found at: "%s".'
msg = msg % put_response.get_url()
i = Info('DAV incorrect configuration', msg,
[put_response.id, res.id], self.get_name())
i.set_url(url)
i.set_method('PUT')
self.kb_append(self, 'dav', i)
def _PUT(self, domain_path):
'''
Tests PUT method.
'''
# upload
url = domain_path.url_join(rand_alpha(5))
rnd_content = rand_alnum(6)
put_response = self._uri_opener.PUT(url, data=rnd_content)
# check if uploaded
res = self._uri_opener.GET(url, cache=True)
if res.get_body() == rnd_content:
msg = 'File upload with HTTP PUT method was found at resource:' \
' "%s". A test file was uploaded to: "%s".'
msg = msg % (domain_path, res.get_url())
v = Vuln('Insecure DAV configuration', msg, severity.HIGH,
[put_response.id, res.id], self.get_name())
v.set_url(url)
v.set_method('PUT')
self.kb_append(self, 'dav', v)
# Report some common errors
elif put_response.get_code() == 500:
msg = 'DAV seems to be incorrectly configured. The web server' \
' answered with a 500 error code. In most cases, this means'\
' that the DAV extension failed in some way. This error was'\
' found at: "%s".' % put_response.get_url()
i = Info('DAV incorrect configuration', msg, res.id, self.get_name())
i.set_url(url)
i.set_method('PUT')
self.kb_append(self, 'dav', i)
# Report some common errors
elif put_response.get_code() == 403:
msg = 'DAV seems to be correctly configured and allowing you to'\
' use the PUT method but the directory does not have the'\
' correct permissions that would allow the web server to'\
' write to it. This error was found at: "%s".'
msg = msg % put_response.get_url()
i = Info('DAV incorrect configuration', msg,
[put_response.id, res.id], self.get_name())
i.set_url(url)
i.set_method('PUT')
self.kb_append(self, 'dav', i)
def _analyze_crossdomain_clientaccesspolicy(self, url, response,
file_name):
try:
dom = xml.dom.minidom.parseString(response.get_body())
except Exception:
# Report this, it may be interesting for the final user
# not a vulnerability per-se... but... it's information after all
if 'allow-access-from' in response.get_body() or \
'cross-domain-policy' in response.get_body() or \
'cross-domain-access' in response.get_body():
desc = 'The "%s" file at: "%s" is not a valid XML.'
desc = desc % (file_name, response.get_url())
i = Info('Invalid RIA settings file', desc, response.id,
self.get_name())
i.set_url(response.get_url())
kb.kb.append(self, 'info', i)
om.out.information(i.get_desc())
else:
if (file_name == 'crossdomain.xml'):
url_list = dom.getElementsByTagName("allow-access-from")
attribute = 'domain'
if (file_name == 'clientaccesspolicy.xml'):
url_list = dom.getElementsByTagName("domain")
attribute = 'uri'
for url in url_list:
url = url.getAttribute(attribute)
desc = 'The "%s" file at "%s" allows flash/silverlight'\
' access from any site.'
desc = desc % (file_name, response.get_url())
if url == '*':
v = Vuln('Insecure RIA settings', desc, severity.LOW,
response.id, self.get_name())
v.set_url(response.get_url())
v.set_method('GET')
kb.kb.append(self, 'vuln', v)
om.out.vulnerability(v.get_desc(),
severity=v.get_severity())
else:
i = Info('Cross-domain allow ACL', desc, response.id,
self.get_name())
i.set_url(response.get_url())
i.set_method('GET')
kb.kb.append(self, 'info', i)
om.out.information(i.get_desc())
def _analyze_crossdomain_clientaccesspolicy(self, url, response, file_name):
try:
dom = xml.dom.minidom.parseString(response.get_body())
except Exception:
# Report this, it may be interesting for the final user
# not a vulnerability per-se... but... it's information after all
if 'allow-access-from' in response.get_body() or \
'cross-domain-policy' in response.get_body() or \
'cross-domain-access' in response.get_body():
desc = 'The "%s" file at: "%s" is not a valid XML.'
desc = desc % (file_name, response.get_url())
i = Info('Invalid RIA settings file', desc, response.id,
self.get_name())
i.set_url(response.get_url())
kb.kb.append(self, 'info', i)
om.out.information(i.get_desc())
else:
if(file_name == 'crossdomain.xml'):
url_list = dom.getElementsByTagName("allow-access-from")
attribute = 'domain'
if(file_name == 'clientaccesspolicy.xml'):
url_list = dom.getElementsByTagName("domain")
attribute = 'uri'
for url in url_list:
url = url.getAttribute(attribute)
desc = 'The "%s" file at "%s" allows flash/silverlight'\
' access from any site.'
desc = desc % (file_name, response.get_url())
if url == '*':
v = Vuln('Insecure RIA settings', desc, severity.LOW,
response.id, self.get_name())
v.set_url(response.get_url())
v.set_method('GET')
kb.kb.append(self, 'vuln', v)
om.out.vulnerability(v.get_desc(),
severity=v.get_severity())
else:
i = Info('Cross-domain allow ACL', desc,
response.id, self.get_name())
i.set_url(response.get_url())
i.set_method('GET')
kb.kb.append(self, 'info', i)
om.out.information(i.get_desc())
def _from_csv_get_vulns(self):
file_vulns = []
vuln_reader = csv.reader(open(self.OUTPUT_FILE, 'rb'), delimiter=',',
quotechar='|', quoting=csv.QUOTE_MINIMAL)
for name, method, uri, var, dc, _id, desc in vuln_reader:
v = Vuln(name, desc, 'High', json.loads(_id), 'TestCase')
v.set_method(method)
v.set_uri(URL(uri))
v.set_var(var)
v.set_dc(dc)
file_vulns.append(v)
return file_vulns
def _from_csv_get_vulns(self):
file_vulns = []
vuln_reader = csv.reader(open(self.OUTPUT_FILE, 'rb'),
delimiter=',',
quotechar='|',
quoting=csv.QUOTE_MINIMAL)
for name, method, uri, var, dc, _id, desc in vuln_reader:
v = Vuln(name, desc, 'High', json.loads(_id), 'TestCase')
v.set_method(method)
v.set_uri(URL(uri))
v.set_var(var)
v.set_dc(dc)
file_vulns.append(v)
return file_vulns
except w3afException, e:
msg = 'Exception while verifying if the file that was uploaded'\
'using author.dll was there: %s' % e
om.out.debug(msg)
else:
# The file we uploaded has the reversed filename as body
if res.get_body() == rand_file[::-1] and not is_404(res):
desc = 'An insecure configuration in the frontpage extensions'\
' allows unauthenticated users to upload files to the'\
' remote web server.'
v = Vuln('Insecure Frontpage extensions configuration', desc,
severity.HIGH, [upload_id, res.id], self.get_name())
v.set_url(target_url)
v.set_method('POST')
om.out.vulnerability(v.get_desc(), severity=v.get_severity())
self.kb_append(self, 'frontpage', v)
else:
msg = 'The file that was uploaded using the POST method is'\
' not present on the remote web server at "%s".'
om.out.debug(msg % target_url)
def get_plugin_deps(self):
'''
:return: A list with the names of the plugins that should be run before the
current one.
'''
return ['infrastructure.frontpage_version']
except w3afException, e:
msg = 'Exception while verifying if the file that was uploaded'\
'using author.dll was there: %s' % e
om.out.debug(msg)
else:
# The file we uploaded has the reversed filename as body
if res.get_body() == rand_file[::-1] and not is_404(res):
desc = 'An insecure configuration in the frontpage extensions'\
' allows unauthenticated users to upload files to the'\
' remote web server.'
v = Vuln('Insecure Frontpage extensions configuration', desc,
severity.HIGH, [upload_id, res.id], self.get_name())
v.set_url(target_url)
v.set_method('POST')
om.out.vulnerability(v.get_desc(), severity=v.get_severity())
self.kb_append(self, 'frontpage', v)
else:
msg = 'The file that was uploaded using the POST method is'\
' not present on the remote web server at "%s".'
om.out.debug(msg % target_url)
def get_plugin_deps(self):
'''
:return: A list with the names of the plugins that should be run before the
current one.
'''
return ['infrastructure.frontpage_version']
