CVE-2024-43385 Phoenix Contact: OS command execution through PROXY_HTTP_PORT in mGuard devices

High 8.8 Published 10 Sep 2024 Updated 10 Sep 2024

A low-privileged remote attacker can execute arbitrary OS commands as root on mGuard devices via improper input handling in the PROXY_HTTP_PORT variable.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2024-43385?

CVE-2024-43385 is a high-severity command injection vulnerability in PHOENIX CONTACT FL MGUARD 2102, published on 10 Sep 2024. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

A low privileged remote attacker can trigger the execution of arbitrary OS commands as root due to improper neutralization of special elements in the variable PROXY_HTTP_PORT in mGuard devices.

Weakness: CWE-78

Which versions are affected by CVE-2024-43385?

It affects 36 products.

Products include Phoenixcontact Fl Mguard 2102 Firmware, Phoenixcontact Fl Mguard 2105 Firmware, Phoenixcontact Fl Mguard 4102 Pci Firmware, Phoenixcontact Fl Mguard 4102 Pcie Firmware, Phoenixcontact Fl Mguard 4302 Firmware, Phoenixcontact Fl Mguard 4305 Firmware and 30 more.

How do I fix CVE-2024-43385?

No fix has been published for CVE-2024-43385 yet. Limit exposure of the affected software until one is available.

Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.

Is CVE-2024-43385 being exploited?

There is no known exploitation of CVE-2024-43385 in the wild and no public exploit code.

Sources

Also known as GHSA-r53h-jp5f-7qxm.