CVE-2021-30065 Security feature bypass in n/a
Crafted ModBus packets bypass the ModBus enforcer on Schneider Electric and Belden industrial firewalls, allowing unauthorized protocol traffic.
- 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-2021-30065?
CVE-2021-30065 is a high-severity vulnerability in n/a, published on 3 Apr 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
On Schneider Electric ConneXium Tofino Firewall TCSEFEA23F3F22 before 03.23, TCSEFEA23F3F20/21, and Belden Tofino Xenon Security Appliance, crafted ModBus packets can bypass the ModBus enforcer. NOTE: this issue exists because of an incomplete fix of CVE-2017-11401.
Which versions are affected by CVE-2021-30065?
It affects 13 products.
Products include Belden Eagle 20 Tofino 943 987-501-Tx\/Tx Firmware, Belden Eagle 20 Tofino 943 987-502 -Tx\/Mm Firmware, Belden Eagle 20 Tofino 943 987-504-Mm\/Tx Firmware, Belden Eagle 20 Tofino 943 987-505-Mm\/Mm Firmware, Belden Tofino Argon Fa-Tsa-100-Tx\/Tx Firmware, Belden Tofino Argon Fa-Tsa-220-Mm\/Mm Firmware and 7 more.
How do I fix CVE-2021-30065?
No fix has been published for CVE-2021-30065 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-30065 being exploited?
There is no known exploitation of CVE-2021-30065 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-264c-27mg-g32w.