Web - Tricks 2

270 points

Description

Another round of PHP Tricks, good luck.

Solution

We are provided with the following source code.

The final payload is: /?a=04&b=�

Flag: SBCTF{d1d_y0u_kn0w_abou7_7h47?}

Last updated 3 years ago

Description

Another round of PHP Tricks, good luck.

Solution

We are provided with the following source code.

Similar to , there seems to be an impossible conditional check that we need to fulfil. How can the length of a > b and yet length of b > a at the same time? Also, I wanted to know the difference between strlen and mb_strlen since that is the only difference between the conditions. Turns out it is quite a popular question.

The final payload is: /?a=04&b=�

Flag: SBCTF{d1d_y0u_kn0w_abou7_7h47?}

Similar to , there seems to be an impossible conditional check that we need to fulfil. How can the length of a > b and yet length of b > a at the same time? Also, I wanted to know the difference between strlen and mb_strlen since that is the only difference between the conditions. Turns out it is quite a popular question.

Web - Tricks 1