CVE-2021-42556 Path traversal in n/a
An attacker can achieve arbitrary write capability within specific directories by uploading a crafted archive file to Rasa X.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2021-42556?
CVE-2021-42556 is a medium-severity path traversal vulnerability in n/a, published on 22 Oct 2021. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
Rasa X before 0.42.4 allows Directory Traversal during archive extraction. In the functionality that allows a user to load a trained model archive, an attacker has arbitrary write capability within specific directories via a crafted archive file.
Weakness: CWE-22
Which versions are affected by CVE-2021-42556?
It affects 1 product.
Products include Rasa Rasa X.
How do I fix CVE-2021-42556?
No fix has been published for CVE-2021-42556 yet. Limit exposure of the affected software until one is available.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2021-42556 being exploited?
There is no known exploitation of CVE-2021-42556 in the wild and no public exploit code.
Public exploit code: 1 proofs of concept on GitHub.