RUSTSEC-2022-0072

Location header incorporates user input, allowing open redirect

Reported

December 23, 2022

Issued

December 23, 2022

Package

hyper-staticfile (crates.io)

Type

Vulnerability

Categories

format-injection

Keywords

#open-redirect #http

Details

https://github.com/stephank/hyper-staticfile/commit/f12cadc6666c6f555d29725f5bc45da2103f24ea

Patched

^0.9.4
>=0.10.0-alpha.5

Description

When hyper-staticfile performs a redirect for a directory request (e.g. a request for /dir that redirects to /dir/), the Location header value was derived from user input (the request path), simply appending a slash. The intent was to perform an origin-relative redirect, but specific inputs allowed performing a scheme-relative redirect instead.

An attacker could craft a special URL that would appear to be for the correct domain, but immediately redirects to a malicious domain. Such a URL can benefit phishing attacks, for example an innocent looking link in an email.