CVE-2019-10977 Denial of service in MELSEC-Q series Ethernet module
An attacker can cause a denial-of-service condition on Mitsubishi MELSEC-Q Ethernet modules by sending crafted TCP packets to the FTP service.
- 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-2019-10977?
CVE-2019-10977 is a high-severity denial of service vulnerability in Mitsubishi Electric MELSEC-Q series Ethernet module, published on 23 May 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
In Mitsubishi Electric MELSEC-Q series Ethernet module QJ71E71-100 serial number 20121 and prior, an attacker could send crafted TCP packets against the FTP service, forcing the target devices to enter an error mode and cause a denial-of-service condition.
Which versions are affected by CVE-2019-10977?
It affects 1 product.
Products include Mitsubishielectric Qj71e71-100 Firmware.
How do I fix CVE-2019-10977?
No fix has been published for CVE-2019-10977 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-2019-10977 being exploited?
There is no known exploitation of CVE-2019-10977 in the wild and no public exploit code.
Other vulnerabilities in Mitsubishi Electric MELSEC-Q series Ethernet module
Sources
Also known as GHSA-3fgw-638m-mm8f.