CVE-2021-21880 Path traversal in Lantronix
An authenticated attacker can exploit a directory traversal flaw in the Web Manager to perform local file inclusion and read arbitrary files.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-21880?
CVE-2021-21880 is a high-severity path traversal vulnerability in Lantronix, published on 22 Dec 2021. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
A directory traversal vulnerability exists in the Web Manager FsCopyFile functionality of Lantronix PremierWave 2050 8.9.0.0R4. A specially-crafted HTTP request can lead to local file inclusion. An attacker can make an authenticated HTTP request to trigger this vulnerability.
Weakness: CWE-22
Which versions are affected by CVE-2021-21880?
It affects 1 product.
Products include Lantronix Premierwave 2050 Firmware.
How do I fix CVE-2021-21880?
No fix has been published for CVE-2021-21880 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-2021-21880 being exploited?
There is no known exploitation of CVE-2021-21880 in the wild and no public exploit code.
Other vulnerabilities in Lantronix
Sources
Also known as GHSA-qx9v-77xx-r5wj.