CVE-2020-15111
Medium
Description
In Fiber before version 1.12.6, the filename that is given in c.Attachment() (https://docs.gofiber.io/ctx#attachment) is not escaped, and therefore vulnerable for a CRLF injection attack. I.e. an attacker could upload a custom filename and then give the link to the victim. With this filename, the attacker can change the name of the downloaded file, redirect to another site, change the authorization header, etc. A possible workaround is to serialize the input before passing it to ctx.Attachment().
SeverityMedium
CVSS4.2
Exploit probability—
ProductFiber
PublishedJul 20, 2020
First seenJul 20, 2020
Weakness typeCWE-74InjectionCWE-93CWE-93
How to fix
Update
- gofiber fiber1.12.6 or later
- github.com/gofiber/fiber1.12.6 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| gofiber fiber | v < 1.12.6 | 1.12.6 |
| github.com/gofiber/fiberGo | v < 1.12.6 | 1.12.6 |
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