CVE-2020-28645 Path traversal in n/a
Deleting users with specific names can delete system files, risking data loss or service disruption in ownCloud installations with self-registration and web-root data directories.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2020-28645?
CVE-2020-28645 is a critical path traversal vulnerability in Owncloud Owncloud, published on 9 Feb 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Deleting users with certain names caused system files to be deleted. Risk is higher for systems which allow users to register themselves and have the data directory in the web root. This affects ownCloud/core versions < 10.6.
Weakness: CWE-20
Which versions are affected by CVE-2020-28645?
It affects 1 product.
Products include Owncloud Owncloud.
How do I fix CVE-2020-28645?
No fix has been published for CVE-2020-28645 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-2020-28645 being exploited?
There is no known exploitation of CVE-2020-28645 in the wild and no public exploit code.
Other vulnerabilities in Owncloud Owncloud
Sources
Also known as GHSA-3f4c-grv3-wwg8.