CVE-2021-21878 Path traversal in Lantronix
An authenticated attacker can exploit a local file inclusion vulnerability in Lantronix PremierWave to read arbitrary files from the device.
- 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-2021-21878?
CVE-2021-21878 is a medium-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 local file inclusion vulnerability exists in the Web Manager Applications and FsBrowse functionality of Lantronix PremierWave 2050 8.9.0.0R4. A specially-crafted series of HTTP requests can lead to local file inclusion. An attacker can make a series of authenticated HTTP requests to trigger this vulnerability.
Weakness: CWE-668
Which versions are affected by CVE-2021-21878?
It affects 1 product.
Products include Lantronix Premierwave 2050 Firmware.
How do I fix CVE-2021-21878?
No fix has been published for CVE-2021-21878 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-2021-21878 being exploited?
There is no known exploitation of CVE-2021-21878 in the wild and no public exploit code.
Other vulnerabilities in Lantronix
Sources
Also known as GHSA-6fw5-96cf-75p5.