CVE-2021-38399 Honeywell Experion PKS and ACE Controllers Relative Path Traversal
Attackers can access unauthorized files and directories on Honeywell Experion PKS and ACE controllers via relative path traversal.
- 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-2021-38399?
CVE-2021-38399 is a high-severity path traversal vulnerability in Honeywell Experion PKS, published on 28 Oct 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Honeywell Experion PKS C200, C200E, C300, and ACE controllers are vulnerable to relative path traversal, which may allow an attacker access to unauthorized files and directories.
Which versions are affected by CVE-2021-38399?
It affects 4 products.
Products include Honeywell Application Control Environment Firmware, Honeywell C200 Firmware, Honeywell C200e Firmware, Honeywell C300 Firmware.
How do I fix CVE-2021-38399?
No fix has been published for CVE-2021-38399 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-2021-38399 being exploited?
There is no known exploitation of CVE-2021-38399 in the wild and no public exploit code.
Other vulnerabilities in Honeywell Experion PKS
Sources
Also known as GHSA-xh3f-3c4f-cgh5.