Tóm tắt nhanh
- CVE-2021-32643 là lỗ hổng mức TRUNG BÌNH (CVSS 5.8) ảnh hưởng org.http4s:http4s-core, http4s (typelevel).
- Xác suất bị khai thác trong 30 ngày tới (EPSS): 1.4%, cao hơn 72.4% các lỗ hổng khác.
- Cách xử lý: cập nhật lên 0.21.24, 0.22.0-RC1, 0.23.0-RC1, 1.0.0-M23 hoặc mới hơn.
| Gói / sản phẩm | Phiên bản bị ảnh hưởng | Phiên bản đã vá |
|---|
| org.http4s:http4s-core Maven | ≥ 0.21.7, < 0.21.24≥ 0.22.0-M1, < 0.22.0-RC1≥ 0.23.0-M1, < 0.23.0-RC1≥ 1.0.0-M1, < 1.0.0-M23
| 0.21.240.22.0-RC10.23.0-RC11.0.0-M23
|
| http4s | = 0.22.0= 0.23.0= 1.0.0≥ 0.21.7, < 0.21.24
| 0.21.24
|
Mô tả
Impact
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
- 1.0.0-M1 through 1.0.0-M22
Patches
The patch is available in the following versions:
- v0.21.24
- v0.22.0-RC1
- v0.23.0-RC1
- v1.0.0-M23
Note: a previous version of this advisory incorrectly referred to 0.22.0-M9 and 0.23.0-M2.
Workarounds
Don't call StaticFile.fromUrl with non-file URLs.
For more information
If you have any questions or comments about this advisory:
Mô tả của NVD
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.
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