CVE-2019-10997 Denial of service in n/a

Medium 5.9 Published Updated

A man-in-the-middle attacker can crash the PLC service on Phoenix Contact devices via protocol fuzzing, requiring a manual restart or reboot.

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-2019-10997?

CVE-2019-10997 is a medium-severity denial of service vulnerability in n/a, published on 17 Jun 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

An issue was discovered on Phoenix Contact AXC F 2152 (No.2404267) before 2019.0 LTS and AXC F 2152 STARTERKIT (No.1046568) before 2019.0 LTS devices. Protocol Fuzzing on PC WORX Engineer by a man in the middle attacker stops the PLC service. The device must be rebooted, or the PLC service must be restarted manually via a Linux shell.

Which versions are affected by CVE-2019-10997?

It affects 2 products.

Products include Phoenixcontact Axc F 2152 Firmware, Phoenixcontact Axc F 2152 Starterkit Firmware.

How do I fix CVE-2019-10997?

No fix has been published for CVE-2019-10997 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-2019-10997 being exploited?

There is no known exploitation of CVE-2019-10997 in the wild and no public exploit code.

Sources

Also known as GHSA-644p-jwhv-rxr7.

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