def is_dynupdate_enabled(domain: str, nameserver: str) -> bool:
"""
Check if zone updating is enabled.
:param domain: Name of the zone to transfer.
:param nameserver: IPv4 or 6 to test.
"""
newrecord = 'newrecord'
try:
update = dns.update.Update(domain)
update.add(newrecord, 3600, dns.rdatatype.A, '10.10.10.10')
response = dns.query.tcp(update, nameserver, timeout=5)
result = True
if response.rcode() > 0:
show_close('Zone update not enabled on server',
details=dict(domain=domain, nameserver=nameserver))
result = False
else:
show_open('Zone update enabled on server',
details=dict(domain=domain, nameserver=nameserver))
result = True
except dns.query.BadResponse:
show_close('Zone update not enabled on server',
details=dict(domain=domain, nameserver=nameserver))
result = False
except (socket.error, dns.exception.Timeout) as exc:
show_unknown('Could not connect',
details=dict(domain=domain,
nameserver=nameserver,
error=str(exc).replace(':', ',')))
result = False
return result
def has_generic_exceptions(rpg_dest: str, exclude: list = None) -> bool:
"""
Search for on-error empty.
See `REQ. 161
<https://fluidattacks.com/web/rules/161/>`_.
:param rpg_dest: Path to a RPG source or directory.
:param exclude: Paths that contains any string from this list are ignored.
"""
tk_on = CaselessKeyword('on')
tk_error = CaselessKeyword('error')
tk_monitor = tk_on + Literal('-') + tk_error + Literal(';')
result = False
try:
matches = lang.check_grammar(tk_monitor, rpg_dest, LANGUAGE_SPECS,
exclude)
if not matches:
show_close('Code does not have empty monitors',
details=dict(code_dest=rpg_dest))
return False
except FileNotFoundError:
show_unknown('File does not exist', details=dict(code_dest=rpg_dest))
return False
else:
result = True
show_open('Code has empty monitors',
details=dict(matched=matches, total_vulns=len(matches)))
return result
def has_unitialized_vars(rpg_dest: str, exclude: list = None) -> bool:
"""
Search for unitialized variables.
:param rpg_dest: Path to a RPG source or directory.
:param exclude: Paths that contains any string from this list are ignored.
"""
tk_data = Keyword('D')
tk_first = Word(alphas + "_", exact=1)
tk_rest = Word(alphanums + "_")
tk_vartype = Word(alphas, exact=1)
tk_varlen = Word(nums) + Word(alphas, exact=1)
tk_inz = CaselessKeyword('inz')
tk_varname = tk_first + tk_rest
unitialized = tk_data + tk_varname + Optional(tk_vartype) + \
Optional(tk_varlen) + Optional(Word(nums)) + NotAny(tk_inz)
result = False
try:
matches = lang.check_grammar(unitialized, rpg_dest, LANGUAGE_SPECS,
exclude)
if not matches:
show_close('Code does not have unitialized variables',
details=dict(code_dest=rpg_dest))
return False
except FileNotFoundError:
show_unknown('File does not exist', details=dict(code_dest=rpg_dest))
return False
else:
result = True
show_open('Code has unitialized variables',
details=dict(matched=matches, total_vulns=len(matches)))
return result
def uses_eval(js_dest: str, exclude: list = None) -> bool:
"""
Search for ``eval()`` calls in a JavaScript file or directory.
:param js_dest: Path to a JavaScript source file or directory.
:param exclude: Paths that contains any string from this list are ignored.
"""
method = 'eval()'
tk_method = CaselessKeyword('eval')
call_function = tk_method + Suppress(nestedExpr())
result = False
try:
matches = lang.check_grammar(call_function, js_dest, LANGUAGE_SPECS,
exclude)
if not matches:
show_close('Code does not use {} method'.format(method),
details=dict(code_dest=js_dest))
return False
except FileNotFoundError:
show_unknown('File does not exist', details=dict(code_dest=js_dest))
return False
else:
result = True
show_open('Code uses {} method'.format(method),
details=dict(matched=matches, total_vulns=len(matches)))
return result
def _ftp_do_auth(ip_address: str, username: str,
password: str, port: int = PORT) -> bool:
"""
Perform FTP auth.
:param ip_address: IP address to connect to.
:param username: Username to check.
:param password: Password to check.
:param port: If necessary, specifiy port to connect to.
"""
result = False
try:
with FTP() as ftp:
ftp.connect(ip_address, port)
ftp.login(username, password)
ftp.makepasv()
result = True
show_open('FTP Authentication {}:{}'.format(ip_address, port),
details=dict(username=username, password=password))
except error_perm:
show_close('FTP Authentication {}:{}'.format(ip_address, port),
details=dict(username=username, password=password))
result = False
except OSError as exc:
show_unknown('Could not connect',
details=dict(ip=ip_address, username=username,
password=password,
error=str(exc)))
result = False
return result
def uses_localstorage(js_dest: str, exclude: list = None) -> bool:
"""
Search for ``localStorage`` calls in a JavaScript source file or directory.
:param js_dest: Path to a JavaScript source file or directory.
:param exclude: Paths that contains any string from this list are ignored.
"""
method = 'window.localStorage'
tk_object = CaselessKeyword('localstorage')
tk_method = Word(alphanums)
lsto = tk_object + Literal('.') + tk_method + Suppress(nestedExpr())
result = False
try:
matches = lang.check_grammar(lsto, js_dest, LANGUAGE_SPECS, exclude)
if not matches:
show_close('Code does not use {} method'.format(method),
details=dict(code_dest=js_dest))
return False
except FileNotFoundError:
show_unknown('File does not exist', details=dict(code_dest=js_dest))
return False
else:
result = True
show_open('Code uses {} method'.format(method),
details=dict(matched=matches, total_vulns=len(matches)))
return result
def swallows_exceptions(js_dest: str, exclude: list = None) -> bool:
"""
Search for ``catch`` blocks that are empty or only have comments.
See `REQ.161 <https://fluidattacks.com/web/rules/161/>`_.
See `CWE-391 <https://cwe.mitre.org/data/definitions/391.html>`_.
:param js_dest: Path to a JavaScript source file or package.
:param exclude: Paths that contains any string from this list are ignored.
"""
# Empty() grammar matches 'anything'
# ~Empty() grammar matches 'not anything' or 'nothing'
classic = Suppress(Keyword('catch')) + nestedExpr(opener='(', closer=')') \
+ nestedExpr(opener='{', closer='}', content=~Empty())
modern = Suppress('.' + Keyword('catch')) + nestedExpr(
opener='(', closer=')', content=~Empty())
grammar = MatchFirst([classic, modern])
grammar.ignore(cppStyleComment)
try:
matches = lang.path_contains_grammar(grammar, js_dest, LANGUAGE_SPECS,
exclude)
except FileNotFoundError:
show_unknown('File does not exist', details=dict(code_dest=js_dest))
else:
if matches:
show_open('Code has empty "catch" blocks',
details=dict(matched=matches))
return True
show_close('Code does not have empty "catch" blocks',
details=dict(code_dest=js_dest))
return False
def root_without_mfa(key_id: str, secret: str) -> bool:
"""
Check if root account does not have MFA.
CIS 1.13: Ensure MFA is enabled for the root account (Scored)
:param key_id: AWS Key Id
:param secret: AWS Key Secret
"""
result = False
try:
summary = aws.get_account_summary(key_id, secret)
except aws.ConnError as exc:
show_unknown('Could not connect',
details=dict(error=str(exc).replace(':', '')))
return False
except aws.ClientErr as exc:
show_unknown('Error retrieving info. Check credentials.',
details=dict(error=str(exc).replace(':', '')))
return False
if summary['AccountMFAEnabled'] == 1:
show_close('Root password has MFA enabled',
details=dict(account_summary=summary))
result = False
else:
show_open('Root password has MFA disabled',
details=dict(account_summary=summary))
result = True
return result
def policies_attached_to_users(key_id: str, secret: str) -> bool:
"""
Check if there are policies attached to users.
CIS 1.16: Ensure IAM policies are attached only to groups or
roles (Scored)
:param key_id: AWS Key Id
:param secret: AWS Key Secret
"""
result = False
try:
users = aws.list_users(key_id, secret)
except aws.ConnError as exc:
show_unknown('Could not connect',
details=dict(error=str(exc).replace(':', '')))
return False
except aws.ClientErr as exc:
show_unknown('Error retrieving info. Check credentials.',
details=dict(error=str(exc).replace(':', '')))
return False
for user in users:
user_pol = aws.list_attached_user_policies(key_id, secret,
user['UserName'])
if user_pol:
show_open('User has policies directly attached',
details=(dict(user=user['UserName'],
user_policy=user_pol)))
result = True
else:
show_close('User does not have policies attached',
details=(dict(user=user['UserName'])))
return result
def min_password_len_unsafe(key_id: str, secret: str, min_len=14) -> bool:
"""
Check if password policy requires passwords greater than 14 chars.
CIS 1.9: Ensure IAM password policy requires minimum length of 14 or
greater (Scored)
:param key_id: AWS Key Id
:param secret: AWS Key Secret
:param min_len: Mininum length required. Default 14
"""
result = False
try:
policy = aws.get_account_password_policy(key_id, secret)
except aws.ConnError as exc:
show_unknown('Could not connect',
details=dict(error=str(exc).replace(':', '')))
return False
except aws.ClientErr as exc:
show_unknown('Error retrieving info. Check credentials.',
details=dict(error=str(exc).replace(':', '')))
return False
if policy['MinimumPasswordLength'] >= min_len:
show_close('Password policy requires long passwords',
details=dict(min_length=min_len, policy=policy))
result = False
else:
show_open('Password policy does not require long passwords',
details=dict(min_length=min_len, policy=policy))
result = True
return result
def has_mfa_disabled(key_id: str, secret: str) -> bool:
"""
Search users with password enabled and without MFA.
CIS 1.2: Ensure multi-factor authentication (MFA) is enabled for all IAM
users that have a console password (Scored)
:param key_id: AWS Key Id
:param secret: AWS Key Secret
"""
result = False
try:
users = aws.get_credentials_report(key_id, secret)
except aws.ConnError as exc:
show_unknown('Could not connect',
details=dict(error=str(exc).replace(':', '')))
return False
except aws.ClientErr as exc:
show_unknown('Error retrieving info. Check credentials.',
details=dict(error=str(exc).replace(':', '')))
return False
for user in users:
if user[3] == 'true':
if user[7] == 'false':
show_open('User has password enabled without MFA',
details=dict(user=user[0]))
result = True
else:
show_close('User has password enabled with MFA',
details=dict(user=user[0]))
else:
show_close('User does not have password enabled',
details=dict(user=user[0]))
return result
def not_requires_numbers(key_id: str, secret: str) -> bool:
"""
Check if password policy requires numbers.
CIS 1.8: Ensure IAM password policy require at least one number (Scored)
:param key_id: AWS Key Id
:param secret: AWS Key Secret
"""
result = False
try:
policy = aws.get_account_password_policy(key_id, secret)
except aws.ConnError as exc:
show_unknown('Could not connect',
details=dict(error=str(exc).replace(':', '')))
return False
except aws.ClientErr as exc:
show_unknown('Error retrieving info. Check credentials.',
details=dict(error=str(exc).replace(':', '')))
return False
if policy['RequireNumbers']:
show_close('Password policy requires numbers',
details=dict(policy=policy))
result = False
else:
show_open('Password policy does not require numbers',
details=dict(policy=policy))
result = True
return result
def root_has_access_keys(key_id: str, secret: str) -> bool:
"""
Check if root account has access keys.
CIS 1.12: Ensure no root account access key exists (Scored)
:param key_id: AWS Key Id
:param secret: AWS Key Secret
"""
result = False
try:
users = aws.get_credentials_report(key_id, secret)
except aws.ConnError as exc:
show_unknown('Could not connect',
details=dict(error=str(exc).replace(':', '')))
return False
except aws.ClientErr as exc:
show_unknown('Error retrieving info. Check credentials.',
details=dict(error=str(exc).replace(':', '')))
return False
root_user = next(users)
if root_user[8] == 'true' or root_user[13] == 'true':
show_open('Root user has access keys', details=dict(user=root_user))
result = True
else:
show_close('Root user does not have access keys',
details=dict(user=root_user))
result = False
return result
def not_pinned(file_dest: str, exclude: list = None) -> bool:
"""
Check if the Dockerfile uses a ``FROM:...latest`` (unpinned) base image.
:param file_dest: Path to the Dockerfile to be tested.
:param exclude: Paths that contains any string from this list are ignored.
:returns: True if unpinned (bad), False if pinned (good).
"""
tk_from = Literal('FROM')
tk_image = Word(alphas)
tk_version = Literal('latest')
pinned = tk_from + tk_image + Literal(':') + tk_version
result = False
try:
matches = lang.check_grammar(pinned, file_dest,
LANGUAGE_SPECS, exclude)
if not matches:
show_close('Dockerfile has pinned base image(s)',
details=dict(code_dest=file_dest))
return False
except FileNotFoundError:
show_unknown('File does not exist', details=dict(code_dest=file_dest))
return False
else:
result = True
show_open('Dockerfile uses unpinned base image(s)',
details=dict(file=matches,
total_vulns=len(matches)))
return result
def not_use_ssl(server: str,
username: str,
password: str,
port: int = 3306) -> bool:
"""Check if MySQL server uses SSL."""
try:
mydb = _get_mysql_cursor(server, username, password, port)
except ConnError as exc:
show_unknown('There was an error connecting to MySQL engine',
details=dict(server=server, user=username,
error=str(exc)))
return False
else:
mycursor = mydb.cursor()
query = 'SHOW variables WHERE variable_name = "have_ssl"'
try:
mycursor.execute(query)
except mysql.connector.errors.ProgrammingError as exc:
show_unknown('There was an error executing query',
details=dict(server=server,
username=username,
error=str(exc).replace(':', ',')))
return False
_result = list(mycursor)
result = _result[0][1] == 'DISABLED'
if result:
show_open('Server don\'t use SSL', details=dict(server=server))
else:
show_close('Server uses SSL', details=dict(server=server))
return result
def is_anonymous_enabled(server: str, domain: str = 'WORKGROUP') -> bool:
"""
Check if anonymous login is possible over SMB.
:param server: The NetBIOS machine name of the remote server.
:param domain: The network domain/workgroup. Defaults to 'WORKGROUP'
"""
user = '******'
password = ''
try:
with SMBConnection.SMBConnection(user,
password,
CLIENT_MACHINE_NAME,
server,
domain=domain,
use_ntlm_v2=True,
is_direct_tcp=True) as conn:
ret = conn.connect(server, port=445)
if not ret:
show_close('Anonymous login not possible',
details=dict(domain=domain,
user=user,
server=server))
return False
show_open('Anonymous login enabled',
details=dict(domain=domain, user=user, server=server))
return True
except OSError as exc:
show_unknown('There was an error connecting to SMB',
details=dict(server=server, domain=domain,
error=str(exc)))
return False
def has_unencrypted_volumes(key_id: str, secret: str) -> bool:
"""
Check if there are unencrypted volumes.
:param key_id: AWS Key Id
:param secret: AWS Key Secret
"""
try:
volumes = aws.list_volumes(key_id, secret)
except aws.ConnError as exc:
show_unknown('Could not connect',
details=dict(error=str(exc).replace(':', '')))
return False
except aws.ClientErr as exc:
show_unknown('Error retrieving info. Check credentials.',
details=dict(error=str(exc).replace(':', '')))
return False
if not volumes:
show_close('Not volumes found')
return False
result = False
for volume in volumes:
if not volume['Encrypted']:
show_open('Volume is not encrypted', details=dict(volume=volume))
result = True
else:
show_close('Volume is encrypted', details=dict(volume=volume))
return result
def local_infile_enabled(server: str,
username: str,
password: str,
port: int = 3306) -> bool:
"""Check if 'local_infile' parameter is set to ON."""
try:
mydb = _get_mysql_cursor(server, username, password, port)
except ConnError as exc:
show_unknown('There was an error connecting to MySQL engine',
details=dict(server=server, user=username,
error=str(exc)))
return False
else:
mycursor = mydb.cursor()
query = "SHOW VARIABLES WHERE Variable_name = 'local_infile'"
try:
mycursor.execute(query)
except mysql.connector.errors.ProgrammingError as exc:
show_unknown('There was an error executing query',
details=dict(server=server,
username=username,
error=str(exc).replace(':', ',')))
return False
result = ('local_infile', 'ON') in list(mycursor)
if result:
show_open('Parameter "local_infile" is ON on server',
details=dict(server=server))
else:
show_close('Parameter "local_infile" is OFF on server',
details=dict(server=server))
return result
def has_insecure_randoms(js_dest: str, exclude: list = None) -> bool:
r"""
Check if code uses ``Math.Random()``\ .
See `REQ.224 <https://fluidattacks.com/web/rules/224/>`_.
:param js_dest: Path to a JavaScript source file or package.
:param exclude: Paths that contains any string from this list are ignored.
"""
method = 'Math.random()'
tk_class = CaselessKeyword('math')
tk_method = CaselessKeyword('random')
tk_params = nestedExpr()
call_function = tk_class + Literal('.') + tk_method + Suppress(tk_params)
result = False
try:
matches = lang.check_grammar(call_function, js_dest, LANGUAGE_SPECS,
exclude)
if not matches:
show_close('Code does not use {} method'.format(method),
details=dict(code_dest=js_dest))
return False
except FileNotFoundError:
show_unknown('File does not exist', details=dict(code_dest=js_dest))
return False
else:
result = True
show_open('Code uses {} method'.format(method),
details=dict(matched=matches, total_vulns=len(matches)))
return result
def symlinks_enabled(server: str,
username: str,
password: str,
port: str = 3306) -> bool:
"""Check if symbolic links are enabled on MySQL server."""
try:
mydb = _get_mysql_cursor(server, username, password, port)
except ConnError as exc:
show_unknown('There was an error connecting to MySQL engine',
details=dict(server=server, user=username,
error=str(exc)))
return False
else:
mycursor = mydb.cursor()
query = "SHOW variables LIKE 'have_symlink'"
try:
mycursor.execute(query)
except mysql.connector.errors.ProgrammingError as exc:
show_unknown('There was an error executing query',
details=dict(server=server,
username=username,
error=str(exc).replace(':', ',')))
return False
result = ('have_symlink', 'DISABLED') not in list(mycursor)
if result:
show_open('Symbolic links are supported by server',
details=dict(server=server))
else:
show_close('Symbolic links are not supported by server',
details=dict(server=server))
return result
def has_switch_without_default(js_dest: str, exclude: list = None) -> bool:
r"""
Check if all ``switch``\ es have a ``default`` clause.
See `REQ.161 <https://fluidattacks.com/web/rules/161/>`_.
See `CWE-478 <https://cwe.mitre.org/data/definitions/478.html>`_.
:param js_dest: Path to a JavaScript source file or package.
:param exclude: Paths that contains any string from this list are ignored.
"""
switch = Keyword('switch') + nestedExpr(opener='(', closer=')')
switch_block = Suppress(switch) + nestedExpr(opener='{', closer='}')
switch_block.ignore(cppStyleComment)
switch_block.ignore(L_CHAR)
switch_block.ignore(L_STRING)
switch_block.addCondition(lambda x: not RE_HAVES_DEFAULT.search(str(x)))
try:
matches = lang.path_contains_grammar(switch_block, js_dest,
LANGUAGE_SPECS, exclude)
except FileNotFoundError:
show_unknown('File does not exist', details=dict(code_dest=js_dest))
return False
if matches:
show_open('Code does not have "switch" with "default" clause',
details=dict(matched=matches))
return True
show_close('Code has "switch" with "default" clause',
details=dict(code_dest=js_dest))
return False
def strict_all_tables_disabled(server: str,
username: str,
password: str,
port: int = 3306) -> bool:
"""Check if STRICT_ALL_TABLES is enabled on MySQL server."""
try:
mydb = _get_mysql_cursor(server, username, password, port)
except ConnError as exc:
show_unknown('There was an error connecting to MySQL engine',
details=dict(server=server, user=username,
error=str(exc)))
return False
else:
mycursor = mydb.cursor()
query = "SHOW VARIABLES LIKE 'sql_mode'"
try:
mycursor.execute(query)
except mysql.connector.errors.ProgrammingError as exc:
show_unknown('There was an error executing query',
details=dict(server=server,
username=username,
error=str(exc).replace(':', ',')))
return False
result = 'STRICT_ALL_TABLES' not in list(mycursor)[0][1]
if result:
show_open('STRICT_ALL_TABLES not enabled on by server',
details=dict(server=server))
else:
show_close('STRICT_ALL_TABLES enabled on by server',
details=dict(server=server))
return result
def has_not_autocomplete(filename: str) -> bool:
"""
Check the autocomplete attribute.
Check if tags ``form`` and ``input`` have the ``autocomplete``
attribute set to ``off``.
:param filename: Path to the ``HTML`` source.
:returns: True if tags ``form`` and ``input`` have attribute
``autocomplete`` set as specified, False otherwise.
"""
tk_off = CaselessKeyword('off')
attr = {'autocomplete': tk_off}
tag_i = 'input'
tag_f = 'form'
try:
has_input = _has_attributes(filename, tag_i, attr)
has_form = _has_attributes(filename, tag_f, attr)
except FileNotFoundError as exc:
show_unknown('There was an error', details=dict(error=str(exc)))
return False
if not (has_input or has_form):
result = True
show_open('Attribute in {}'.format(filename),
details=dict(atributes=str(attr)))
else:
result = False
show_close('Attribute in {}'.format(filename),
details=dict(atributes=str(attr)))
return result
def log_error_disabled(server: str,
username: str,
password: str,
port: int = 3306) -> bool:
"""Check if 'log_error' parameter is set on MySQL server."""
try:
mydb = _get_mysql_cursor(server, username, password, port)
except ConnError as exc:
show_unknown('There was an error connecting to MySQL engine',
details=dict(server=server, user=username,
error=str(exc)))
return False
else:
mycursor = mydb.cursor()
query = "SHOW variables LIKE 'log_error'"
try:
mycursor.execute(query)
except mysql.connector.errors.ProgrammingError as exc:
show_unknown('There was an error executing query',
details=dict(server=server,
username=username,
error=str(exc).replace(':', ',')))
return False
result = ('log_error', '') in list(mycursor)
if result:
show_open('Parameter "log_error" not set on server',
details=dict(server=server))
else:
show_close('Parameter "log_error" is set on server',
details=dict(server=server))
return result
def has_no_password_protection(path: str) -> bool:
"""
Check if .jks files are password protected.
:param path: path to check
"""
if not os.path.exists(path):
show_unknown('Path does not exist',
details=dict(path=path))
return False
jks_with_password: list = []
jks_without_password: list = []
for full_path in full_paths_in_dir(path):
if not full_path.endswith('.jks'):
continue
try:
jks.KeyStore.load(full_path, '')
except jks.util.KeystoreSignatureException:
# has password
jks_with_password.append(dict(path=full_path,
sha256=get_sha256(full_path)))
else:
# has not password
jks_without_password.append(dict(path=full_path,
sha256=get_sha256(full_path)))
if jks_without_password:
show_open('JKS is/are not password protected',
details=dict(jks_without_password=jks_without_password))
return True
show_close('JKS is/are password protected',
details=dict(jks_with_password=jks_with_password))
return False
def logs_on_system_fs(server: str,
username: str,
password: str,
port: int = 3306) -> bool:
"""Check if logs are stored on a system filesystem on server."""
try:
mydb = _get_mysql_cursor(server, username, password, port)
except ConnError as exc:
show_unknown('There was an error connecting to MySQL engine',
details=dict(server=server, user=username,
error=str(exc)))
return False
else:
mycursor = mydb.cursor()
query = "SELECT @@global.log_bin_basename"
try:
mycursor.execute(query)
except mysql.connector.errors.ProgrammingError as exc:
show_unknown('There was an error executing query',
details=dict(server=server,
username=username,
error=str(exc).replace(':', ',')))
return False
_result = list(mycursor)[0][0]
result = _result.startswith('/var') or _result.startswith('/usr')
if result:
show_open('Logs are stored on system filesystems on server',
details=dict(server=server))
else:
show_close('Logs are outside system filesystems on server',
details=dict(server=server))
return result
def has_dos_dow_sqlcod(rpg_dest: str, exclude: list = None) -> bool:
r"""
Search for DoS for using ``DoW SQLCOD = <ZERO>``\ .
:param rpg_dest: Path to a RPG source or directory.
:param exclude: Paths that contains any string from this list are ignored.
"""
tk_dow = CaselessKeyword('dow')
tk_sqlcod = CaselessKeyword('sqlcod')
tk_literal_zero = CaselessKeyword('*zeros')
tk_zeros = MatchFirst([Literal('0'), tk_literal_zero])
dos_dow_sqlcod = tk_dow + tk_sqlcod + Literal('=') + tk_zeros
result = False
try:
matches = lang.check_grammar(dos_dow_sqlcod, rpg_dest, LANGUAGE_SPECS,
exclude)
if not matches:
show_close('Code does not have DoS for using "DoW SQLCOD = 0"',
details=dict(code_dest=rpg_dest))
return False
except FileNotFoundError:
show_unknown('File does not exist', details=dict(code_dest=rpg_dest))
return False
else:
result = True
show_open('Code has DoS for using "DoW SQLCOD = 0"',
details=dict(matched=matches, total_vulns=len(matches)))
return result
def test_db_exists(server: str,
username: str,
password: str,
port: int = 3306) -> bool:
"""Check if "test" database exists."""
try:
mydb = _get_mysql_cursor(server, username, password, port)
except ConnError as exc:
show_unknown('There was an error connecting to MySQL engine',
details=dict(server=server, user=username,
error=str(exc)))
return False
else:
mycursor = mydb.cursor()
try:
mycursor.execute("SHOW DATABASES")
except mysql.connector.errors.ProgrammingError as exc:
show_unknown('There was an error executing query',
details=dict(server=server,
username=username,
error=str(exc).replace(':', ',')))
return False
result = ('test', ) in list(mycursor)
if result:
show_open('Database "test" is present',
details=dict(server=server))
else:
show_close('Database "test" not present',
details=dict(server=server))
return result
def has_insecure_expiration_time(jwt_token: str,
max_expiration_time: int = 600) -> bool:
"""
Check if the given JWT has an insecure expiration time.
:param jwt_token: JWT to test.
:param max_expiration_time: According to the bussiness rule, (in seconds).
"""
try:
claimset = decode(jwt_token, verify=False)
except InvalidTokenError:
show_unknown('Unable to decode token.',
details=dict(jwt_token=jwt_token))
return False
iat = claimset.get('iat')
exp = claimset.get('exp')
if not iat or not exp:
show_open('Token does not include an `iat` or `exp` claims',
details=dict(claims_set=claimset))
return True
expiration_time = (exp - iat)
if expiration_time > max_expiration_time:
show_open('Token has an insecure expiration time',
details=dict(claims_set=claimset,
expiration_time=expiration_time,
max_expiration_time=max_expiration_time))
else:
show_close('Token has a secure expiration time',
details=dict(claims_set=claimset,
expiration_time=expiration_time,
max_expiration_time=max_expiration_time))
return expiration_time > max_expiration_time
def has_recursion(nameserver: str) -> bool:
"""
Check if nameserver has recursion enabled.
:param nameserver: IPv4 or 6 to test.
"""
domain = 'google.com.'
name = dns.name.from_text(domain)
try:
# Make a recursive request
request = dns.message.make_query(name, dns.rdatatype.A,
dns.rdataclass.IN)
response = dns.query.udp(request, nameserver, timeout=5)
result = True
if response.rcode() == 0:
show_open('Recursion possible on server',
details=dict(domain=domain, nameserver=nameserver))
result = True
else:
show_close('Recursion not possible on server',
details=dict(domain=domain, nameserver=nameserver))
result = False
except dns.exception.SyntaxError:
show_close('Recursion not possible on server',
details=dict(domain=domain, nameserver=nameserver))
result = False
except (socket.error, dns.exception.Timeout) as exc:
show_unknown('Could not connect',
details=dict(domain=domain,
nameserver=nameserver,
error=str(exc).replace(':', ',')))
result = False
return result