CVE-2022-3480 Denial-of-Service vulnerability in PHOENIX CONTACT mGuard product family
Remote unauthenticated attackers can cause denial of service on PHOENIX CONTACT mGuard devices by flooding HTTPS connections, affecting industrial network security.
- 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-2022-3480?
CVE-2022-3480 is a high-severity denial of service vulnerability in PHOENIX CONTACT FL MGUARD CENTERPORT, published on 15 Nov 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A remote, unauthenticated attacker could cause a denial-of-service of PHOENIX CONTACT FL MGUARD and TC MGUARD devices below version 8.9.0 by sending a larger number of unauthenticated HTTPS connections originating from different source IP’s. Configuring firewall limits for incoming connections cannot prevent the issue.
Weakness: CWE-770
Which versions are affected by CVE-2022-3480?
It affects 31 products.
Products include Phoenixcontact Fl Mguard Centerport Firmware, Phoenixcontact Fl Mguard Centerport Vpn-1000 Firmware, Phoenixcontact Fl Mguard Core Tx Firmware, Phoenixcontact Fl Mguard Core Tx Vpn Firmware, Phoenixcontact Fl Mguard Delta Tx\/Tx Firmware, Phoenixcontact Fl Mguard Delta Tx\/Tx Vpn Firmware and 25 more.
How do I fix CVE-2022-3480?
No fix has been published for CVE-2022-3480 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-2022-3480 being exploited?
There is no known exploitation of CVE-2022-3480 in the wild and no public exploit code.
Sources
Also known as GHSA-4pwc-87fv-q86q.