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arbitrary file read vulnerability #13

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bkfish opened this issue Jan 4, 2022 · 0 comments
Open

arbitrary file read vulnerability #13

bkfish opened this issue Jan 4, 2022 · 0 comments

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@bkfish
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bkfish commented Jan 4, 2022

poc

After login as admin,file manager and downloadfunction
image
after change path param can read arbitrary file
image

analysis

location:include/File.php
image

image
we can use ../ to traverse to the previous directory

suggest

you can check path ,for example check if it has .. then refuse this request
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@bkfish