CVE-2023-2673 PHOENIX CONTACT: FL/TC MGUARD prone to Improper Input Validation
Improper input validation allows UDP packets to bypass firewall rules, enabling access to protected devices and flooding attacks.
- 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-2023-2673?
CVE-2023-2673 is a medium-severity vulnerability in PHOENIX CONTACT FL MGUARD 2102, published on 13 Jun 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Improper Input Validation vulnerability in PHOENIX CONTACT FL/TC MGUARD Family in multiple versions may allow UDP packets to bypass the filter rules and access the solely connected device behind the MGUARD which can be used for flooding attacks.
Weakness: CWE-1287
Which versions are affected by CVE-2023-2673?
It affects 26 products.
Products include Phoenixcontact Fl Mguard 2102 Firmware, Phoenixcontact Fl Mguard 4102 Pci Firmware, Phoenixcontact Fl Mguard 4102 Pcie Firmware, Phoenixcontact Fl Mguard 4302 Firmware, Phoenixcontact Fl Mguard Centerport Firmware, Phoenixcontact Fl Mguard Centerport Vpn-1000 Firmware and 20 more.
How do I fix CVE-2023-2673?
No fix has been published for CVE-2023-2673 yet. Limit exposure of the affected software until one is available.
Is CVE-2023-2673 being exploited?
There is no known exploitation of CVE-2023-2673 in the wild and no public exploit code.
Other vulnerabilities in PHOENIX CONTACT FL MGUARD 2102
- CVE-2024-43385 Phoenix Contact: OS command execution through PROXY_HTTP_PORT in mGuard devices
- CVE-2024-43386 Phoenix Contact: OS command execution through EMAIL_NOTIFICATION.TO in mGuard devices.
- CVE-2024-43387 Phoenix Contact: Access files due to improper neutralization of special elements in MGUARD devices
- CVE-2024-43388 Phoenix Contact: SNMP reconfiguration due to improper input validation in MGUARD devices
- CVE-2024-7699 Phoenix Contact: OS command execution in MGUARD products
Sources
Also known as GHSA-fw3q-vjp3-89w5.