CVE-2023-3271 Missing authorization in ICR890-4

High 8.2 Published 10 Jul 2023 Updated 1 Jun 2026

Unauthenticated attackers can access REST API endpoints to gather system information and download data from the SICK ICR890-4.

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-2023-3271?

CVE-2023-3271 is a high-severity missing authorization vulnerability in SICK AG ICR890-4, published on 10 Jul 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Improper Access Control in the SICK ICR890-4 could allow an unauthenticated remote attacker to gather information about the system and download data via the REST API by accessing unauthenticated endpoints.

Weakness: CWE-284

Which versions are affected by CVE-2023-3271?

It affects 1 product.

Products include Sick Icr890-4 Firmware.

How do I fix CVE-2023-3271?

No fix has been published for CVE-2023-3271 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-2023-3271 being exploited?

There is no known exploitation of CVE-2023-3271 in the wild and no public exploit code.

Sources

Also known as GHSA-fm49-53h8-h7vg.