CVE-2023-23449 Information disclosure in SICK FTMG-ESD15AXX AIR FLOW SENSOR

Medium 5.3 Published 15 May 2023 Updated 1 Jun 2026

Remote attackers can enumerate valid usernames by analyzing REST interface response discrepancies in SICK FTMg air flow sensors.

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-2023-23449?

CVE-2023-23449 is a medium-severity vulnerability in SICK FTMG-ESD15AXX AIR FLOW SENSOR, published on 15 May 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Observable Response Discrepancy in SICK FTMg AIR FLOW SENSOR with Partnumbers 1100214, 1100215, 1100216, 1120114, 1120116, 1122524, 1122526 allows a remote attacker to gain information about valid usernames by analyzing challenge responses from the server via the REST interface.

Weakness: CWE-203, CWE-204

Which versions are affected by CVE-2023-23449?

It affects 7 products.

Products include Sick Ftmg-Esd15axx Firmware, Sick Ftmg-Esd20axx Firmware, Sick Ftmg-Esd25axx Firmware, Sick Ftmg-Esn40sxx Firmware, Sick Ftmg-Esn50sxx Firmware, Sick Ftmg-Esr40sxx Firmware and 1 more.

How do I fix CVE-2023-23449?

No fix has been published for CVE-2023-23449 yet. Limit exposure of the affected software until one is available.

Is CVE-2023-23449 being exploited?

There is no known exploitation of CVE-2023-23449 in the wild and no public exploit code.

Sources

Also known as GHSA-gwww-55j7-6p52.