CVE-2022-45790 Omron FINS memory protection susceptible to bruteforce
Attackers can brute-force Omron FINS authentication to access protected memory and overwrite programmed logic in CJ and CS series PLCs.
- 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-2022-45790?
CVE-2022-45790 is a high-severity authentication bypass vulnerability in Omron CJ-series and CS-series CPU modules, published on 22 Jan 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The Omron FINS protocol has an authenticated feature to prevent access to memory regions. Authentication is susceptible to bruteforce attack, which may allow an adversary to gain access to protected memory. This access can allow overwrite of values including programmed logic.
Weakness: CWE-307
Which versions are affected by CVE-2022-45790?
It affects 46 products.
Products include Omron Cj1g-Cpu42p Firmware, Omron Cj1g-Cpu43p Firmware, Omron Cj1g-Cpu44p Firmware, Omron Cj1g-Cpu45p-Gtc Firmware, Omron Cj1g-Cpu45p Firmware, Omron Cj2h-Cpu64-Eip Firmware and 40 more.
How do I fix CVE-2022-45790?
No fix has been published for CVE-2022-45790 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2022-45790 being exploited?
There is no known exploitation of CVE-2022-45790 in the wild and no public exploit code.
Sources
Also known as GHSA-c7q6-prxw-fgx7.