CVE-2020-13238 Denial of service in n/a
Attackers can halt industrial processes on Mitsubishi MELSEC iQ-R PLCs by sending unauthenticated crafted packets, requiring physical access to restore production.
- 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-2020-13238?
CVE-2020-13238 is a high-severity denial of service vulnerability in n/a, published on 10 Jun 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Mitsubishi MELSEC iQ-R Series PLCs with firmware 33 allow attackers to halt the industrial process by sending an unauthenticated crafted packet over the network, because this denial of service attack consumes excessive CPU time. After halting, physical access to the PLC is required in order to restore production.
Weakness: CWE-400
Which versions are affected by CVE-2020-13238?
It affects 21 products.
Products include Mitsubishielectric Melsec Iq-R00cpu Firmware, Mitsubishielectric Melsec Iq-R01cpu Firmware, Mitsubishielectric Melsec Iq-R02cpu Firmware, Mitsubishielectric Melsec Iq-R04cpu Firmware, Mitsubishielectric Melsec Iq-R08cpu Firmware, Mitsubishielectric Melsec Iq-R08fcpu Firmware and 15 more.
How do I fix CVE-2020-13238?
No fix has been published for CVE-2020-13238 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-2020-13238 being exploited?
There is no known exploitation of CVE-2020-13238 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-96m8-jhp6-v772.