CVE-2021-20999 WEIDMUELLER: Accidentally open network port in u-controls and IoT-Gateways
Attackers can access an internal network port on Weidmüller IoT gateways to manipulate devices or cause denial of 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-2021-20999?
CVE-2021-20999 is a critical vulnerability in Weidmüller IOT-GW30 (No. 2682620000), published on 13 May 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
In Weidmüller u-controls and IoT-Gateways in versions up to 1.12.1 a network port intended only for device-internal usage is accidentally accessible via external network interfaces. By exploiting this vulnerability the device may be manipulated or the operation may be stopped.
Weakness: CWE-668
Which versions are affected by CVE-2021-20999?
It affects 4 products.
Products include Weidmueller Iot-Gw30-4g-Eu Firmware, Weidmueller Iot-Gw30 Firmware, Weidmueller Uc20-Wl2000-Ac Firmware, Weidmueller Uc20-Wl2000-Iot Firmware.
How do I fix CVE-2021-20999?
No fix has been published for CVE-2021-20999 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-20999 being exploited?
There is no known exploitation of CVE-2021-20999 in the wild and no public exploit code.
Sources
Also known as GHSA-3qph-f3mq-792v.