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 |
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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 |
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 |
Configurations
Configuration 1 (hide)
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History
21 Nov 2024, 06:07
Type | Values Removed | Values Added |
---|---|---|
References | () https://github.com/http4s/http4s/commit/52e1890665410b4385e37b96bc49c5e3c708e4e9 - Patch, Third Party Advisory | |
References | () https://github.com/http4s/http4s/security/advisories/GHSA-6h7w-fc84-x7p6 - Patch, Third Party Advisory | |
References | () https://mvnrepository.com/artifact/org.http4s/http4s-core - Third Party Advisory |
Information
Published : 2021-05-27 18:15
Updated : 2024-11-21 06:07
NVD link : CVE-2021-32643
Mitre link : CVE-2021-32643
CVE.ORG link : CVE-2021-32643
JSON object : View
Products Affected
typelevel
- http4s
CWE
CWE-22
Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')