GHSA-7p7c-pvvx-2vx3: hyper-staticfile's improper validation of Windows paths could lead to directory traversal attack

December 5, 2022

Path resolution in hyper-staticfile 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.

References

github.com/advisories/GHSA-7p7c-pvvx-2vx3
github.com/stephank/hyper-staticfile
github.com/stephank/hyper-staticfile/commit/1e40e31d64bc6b32e595d24074092dcf84410b2b
github.com/stephank/hyper-staticfile/issues/35
github.com/stephank/hyper-staticfile/pull/36
rustsec.org/advisories/RUSTSEC-2022-0069.html

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