CVE-2024-43387 Phoenix Contact: Access files due to improper neutralization of special elements in MGUARD devices

High 8.8 Published 10 Sep 2024 Updated 10 Sep 2024

A low-privileged remote attacker can execute arbitrary commands as root via improper neutralization in the email relay password field of Phoenix Contact mGuard devices.

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-2024-43387?

CVE-2024-43387 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 read and write files as root due to improper neutralization of special elements in the variable EMAIL_RELAY_PASSWORD in mGuard devices.

Weakness: CWE-78

Which versions are affected by CVE-2024-43387?

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-2024-43387?

No fix has been published for CVE-2024-43387 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-2024-43387 being exploited?

There is no known exploitation of CVE-2024-43387 in the wild and no public exploit code.

Sources

Also known as GHSA-wh7r-mh88-6fj5.