GO-2024-3293 Full access to the host's OS file system using osfs.FS with Router.Static in goyave.dev/goyave/v5
Attackers can read arbitrary host files via path traversal in static file serving, requiring developers to switch to embedded filesystems.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is GO-2024-3293?
GO-2024-3293 is a path traversal vulnerability in goyave.dev/goyave/v5, published on 13 Dec 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Static file serving using router.Static and osfs.FS allows clients to access any file on the host file system using relative paths because the requested path is not sanitized and . and .. segments are accepted. The files will be returned as a response, provided the system user running the Go application has read access to the requested file.
As a workaround, use fsutil.NewEmbed(embeddedFS) from the goyave.dev/goyave/v5/util/fsutil package to serve static content using Router.Static instead of &osfs.FS. Embedded file systems are rooted to the specified directory, making it impossible to navigate outside of the developers' intended directory.
Which versions are affected by GO-2024-3293?
1 open source package ship an affected version, including goyave.dev/goyave/v5.
| Package | Affected | Fixed in |
|---|---|---|
goyave.dev/goyave/v5 Go | From 5.0.0 | 5.5.0 |
How do I fix GO-2024-3293?
Upgrade goyave.dev/goyave/v5 to 5.5.0 or later.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is GO-2024-3293 being exploited?
There is no known exploitation of GO-2024-3293 in the wild and no public exploit code.