CVE-2023-4625 Denial-of-Service（DoS） Vulnerability in Web server function on MELSEC Series CPU module
Remote attackers can lock out legitimate users from the Web server interface by triggering excessive authentication attempt restrictions.
- 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-2023-4625?
CVE-2023-4625 is a medium-severity denial of service vulnerability in Mitsubishi Electric Corporation MELSEC iQ-F Series FX5S-30MR/ES, published on 6 Nov 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Improper Restriction of Excessive Authentication Attempts vulnerability in Mitsubishi Electric Corporation MELSEC iQ-F/iQ-R Series CPU modules Web server function allows a remote unauthenticated attacker to prevent legitimate users from logging into the Web server function for a certain period after the attacker has attempted to log in illegally by continuously attempting unauthorized login to the Web server function. The impact of this vulnerability will persist while the attacker continues to attempt unauthorized login.
Weakness: CWE-307
Which versions are affected by CVE-2023-4625?
It affects 63 products.
Products include Mitsubishielectric Fx5s-30mr\/Es Firmware, Mitsubishielectric Fx5s-30mt\/Es Firmware, Mitsubishielectric Fx5s-30mt\/Ess Firmware, Mitsubishielectric Fx5s-40mr\/Es Firmware, Mitsubishielectric Fx5s-40mt\/Es Firmware, Mitsubishielectric Fx5s-40mt\/Ess Firmware and 57 more.
How do I fix CVE-2023-4625?
No fix has been published for CVE-2023-4625 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-2023-4625 being exploited?
There is no known exploitation of CVE-2023-4625 in the wild and no public exploit code.
Other vulnerabilities in Mitsubishi Electric Corporation MELSEC iQ-F Series FX5S-30MR/ES
Sources
Also known as GHSA-23wc-j7fg-6xp5.