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RUSTSEC-2021-0135

Improper validation of Windows paths could lead to directory traversal attack

Issued
Package
tower-http (crates.io)
Type
Vulnerability
Categories
Keywords
#directory-traversal #http
Details
https://github.com/tower-rs/tower-http/pull/204
Patched
  • >=0.2.1
  • >=0.1.3, <0.2.0
Keywords
#directory-traversal #http
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.