CVE-2023-25770 Controller stack overflow on decoding messages from the server
Attacker can cause denial of service on Honeywell C300 controllers by sending specially crafted messages that trigger a buffer overflow.
- 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-2023-25770?
CVE-2023-25770 is a critical denial of service vulnerability in Honeywell C300, published on 13 Jul 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Controller DoS may occur due to buffer overflow when an error is generated in response to a specially crafted message. See Honeywell Security Notification for recommendations on upgrading and versioning.
Weakness: CWE-502
Which versions are affected by CVE-2023-25770?
It affects 1 product.
Products include Honeywell C300 Firmware.
How do I fix CVE-2023-25770?
No fix has been published for CVE-2023-25770 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2023-25770 being exploited?
There is no known exploitation of CVE-2023-25770 in the wild and no public exploit code.
Other vulnerabilities in Honeywell C300
Sources
Also known as GHSA-x9p9-9r24-pqg9.