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#portswigger #path-traversal #web-security
File Path Traversal: Bypassing Blocked Traversal Sequences with an Absolute Path
Lab
File path traversal, traversal sequences blocked with absolute path bypass · Apprentice
Solution
Given
This lab contains a path traversal vulnerability in the display of product images.
The application blocks traversal sequences but treats the supplied filename as being relative to a default working directory.
To solve the lab, retrieve the contents of the /etc/passwd file.
Analysis
Everything is the same as the previous lab, except this time we use absolute paths as the bypass.
Recon. Final payload
GET /image?filename=/etc/passwd
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