CVE-2021-34579 PHOENIX CONTACT: FL MGUARD DM version 1.12.0 and 1.13.0 Improper Privilege Management

High 7.5 Published Updated

Attackers can access the Apache web server without credentials to download sensitive configuration profiles containing private keys.

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-2021-34579?

CVE-2021-34579 is a high-severity missing authorization vulnerability in PHOENIX CONTACT FL MGUARD DM (2981974), published on 9 Nov 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

In Phoenix Contact: FL MGUARD DM version 1.12.0 and 1.13.0 access to the Apache web server being installed as part of the FL MGUARD DM on Microsoft Windows does not require login credentials even if configured during installation.Attackers with network access to the Apache web server can download and therefore read mGuard configuration profiles (“ATV profiles”). Such configuration profiles may contain sensitive information, e.g. private keys associated with IPsec VPN connections.

Weakness: CWE-269

Which versions are affected by CVE-2021-34579?

It affects 1 product.

Products include Phoenixcontact Fl Mguard Dm.

How do I fix CVE-2021-34579?

No fix has been published for CVE-2021-34579 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2021-34579 being exploited?

There is no known exploitation of CVE-2021-34579 in the wild and no public exploit code.

Sources

Also known as GHSA-987p-cg63-5x62.

Is CVE-2021-34579 in your software?

Upload an SBOM and sbomify checks it against every vulnerability here, every day.

Check your SBOMs for free