RUSTSEC-2022-0043

Improper validation of Windows paths could lead to directory traversal attack

Reported

January 21, 2022

Issued

August 4, 2022

Package

tower-http (crates.io)

Type

Vulnerability

Categories

file-disclosure

Keywords

#directory-traversal #http

Details

https://github.com/tower-rs/tower-http/pull/204

Patched

>=0.2.1
>=0.1.3, <0.2.0

Affected OSes

windows

Description

tower_http::services::fs::ServeDir didn't correctly validate Windows paths meaning paths like /foo/bar/c:/windows/web/screen/img101.png would be allowed and respond with the contents of c:/windows/web/screen/img101.png. Thus users could potentially read files anywhere on the filesystem.

This only impacts Windows. Linux and other unix likes are not impacted by this.

See tower-http#204 for more details.