CVE-2020-21057 Path traversal in n/a
Remote attackers can delete system folders via a directory traversal flaw in FusionPBX, requiring immediate patching.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2020-21057?
CVE-2020-21057 is a high-severity path traversal vulnerability in Fusionpbx Fusionpbx, published on 20 May 2021. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Directory Traversal vulnerability in FusionPBX 4.5.7, which allows a remote malicious user to delete folders on the system via the folder variable to app/edit/folderdelete.php.
Weakness: CWE-22
Which versions are affected by CVE-2020-21057?
It affects 1 product.
Products include Fusionpbx Fusionpbx.
How do I fix CVE-2020-21057?
No fix has been published for CVE-2020-21057 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-2020-21057 being exploited?
There is no known exploitation of CVE-2020-21057 in the wild and no public exploit code.
Other vulnerabilities in Fusionpbx Fusionpbx
Sources
Also known as GHSA-37g3-xgx7-448m.