CVE-2021-33011 Denial of service in JTEKT Corporation TOYOPUC products
Attackers can disrupt Ethernet communications between TOYOPUC industrial devices by sending ICMP flood packets, causing denial of service.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-33011?
CVE-2021-33011 is a medium-severity denial of service vulnerability in JTEKT Corporation TOYOPUC products, published on 10 Sep 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
All versions of the afffected TOYOPUC-PC10 Series,TOYOPUC-Plus Series,TOYOPUC-PC3J/PC2J Series, TOYOPUC-Nano Series products may not be able to properly process an ICMP flood, which may allow an attacker to deny Ethernet communications between affected devices.
Weakness: CWE-770
Which versions are affected by CVE-2021-33011?
It affects 27 products.
Products include Jtekt 2port-Efr Thu-6404 Firmware, Jtekt Ef10 Tcu-6982 Firmware, Jtekt Fl\/Et-T-V2h Thu-6289 Firmware, Jtekt Nano 10gx Tuc-1157 Firmware, Jtekt Nano 2et Tuu-6949 Firmware, Jtekt Nano Cpu Tuc-6941 Firmware and 21 more.
How do I fix CVE-2021-33011?
No fix has been published for CVE-2021-33011 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-2021-33011 being exploited?
There is no known exploitation of CVE-2021-33011 in the wild and no public exploit code.
Other vulnerabilities in JTEKT Corporation TOYOPUC products
Sources
Also known as GHSA-c4rx-vvj6-9gv8.