Http4s is a Scala interface for HTTP services. `StaticFile.fromUrl` can leak the presence of a directory on a server when the `URL` scheme is not `file://`, and the URL points to a fetchable resource under its scheme and authority. The function returns `F[None]`, indicating no resource, if `url.getFile` is a directory, without first checking the scheme or authority of the URL. If a URL connection to the scheme and URL would return a stream, and the path in the URL exists as a directory on the server, the presence of the directory on the server could be inferred from the 404 response. The contents and other metadata about the directory are not exposed. This affects http4s versions: 0.21.7 through 0.21.23, 0.22.0-M1 through 0.22.0-M8, 0.23.0-M1, and 1.0.0-M1 through 1.0.0-M22. The [patch](https://github.com/http4s/http4s/commit/52e1890665410b4385e37b96bc49c5e3c708e4e9) is available in the following versions: v0.21.24, v0.22.0-M9, v0.23.0-M2, v1.0.0-M23. As a workaround users can avoid calling `StaticFile.fromUrl` with non-file URLs.
References
Link | Resource |
---|---|
https://github.com/http4s/http4s/commit/52e1890665410b4385e37b96bc49c5e3c708e4e9 | Patch Third Party Advisory |
https://github.com/http4s/http4s/security/advisories/GHSA-6h7w-fc84-x7p6 | Patch Third Party Advisory |
https://mvnrepository.com/artifact/org.http4s/http4s-core | Third Party Advisory |
History
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MITRE Information
Status: PUBLISHED
Assigner: GitHub_M
Published: 2021-05-27T17:15:11
Updated: 2021-05-27T17:15:11
Reserved: 2021-05-12T00:00:00
Link: CVE-2021-32643
JSON object: View
NVD Information
Status : Analyzed
Published: 2021-05-27T18:15:07.903
Modified: 2021-06-10T13:32:27.147
Link: CVE-2021-32643
JSON object: View
Redhat Information
No data.
CWE