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File upload of DVWA range
2022-07-06 07:49:00 【zyf-16】
Upload files
Refers to a vulnerability that allows us to upload our files , Through this vulnerability, we can upload some Trojans
Now let's analyze low Level source code
first if Confirm our upload operation , after $target_path Function to determine the location of the file we upload , Get the name of our file , If the file is not moved to the location specified by the function, the upload fails , Otherwise, the upload will succeed
because low The level is not filtered, so we can upload at will
So let's see medium Level
Here he gets the name of the file we uploaded , type , size , If the type of file we upload is not jpeg,png And the size of the file we uploaded is not less than 100kb Cannot upload , The file will be moved when it meets the requirements , Upload failed without moving , After successfully moving, it will be uploaded successfully
We can go through burpsuite To bypass , When we upload other types of files, grab their packages and send them to repeater, Modify the file type to image/png Send again to bypass
Now let's talk about high Level
Here is the definition of a white list , use uploaded_ext Function to get your extension name , Your file extension name must meet the requirements
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