CVE-2022-29957 Missing authorization in n/a

High 7.8 Published 26 Jul 2022 Updated 3 Aug 2024

Attackers can invoke critical system functions like firmware upgrades and restarts without authentication due to missing security controls in proprietary protocols.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Local or same network only
Victim action needed: Not needed
Fix: None listed

What is CVE-2022-29957?

CVE-2022-29957 is a high-severity missing authorization vulnerability in n/a, published on 26 Jul 2022. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

The Emerson DeltaV Distributed Control System (DCS) through 2022-04-29 mishandles authentication. It utilizes several proprietary protocols for a wide variety of functionality. These protocols include Firmware upgrade (18508/TCP, 18518/TCP); Plug-and-Play (18510/UDP); Hawk services (18507/UDP); Management (18519/TCP); Cold restart (18512/UDP); SIS communications (12345/TCP); and Wireless Gateway Protocol (18515/UDP). None of these protocols have any authentication features, allowing any attacker capable of communicating with the ports in question to invoke (a subset of) desired functionality.

Weakness: CWE-306

Which versions are affected by CVE-2022-29957?

It affects 1 product.

Products include Emerson Deltav Distributed Control System.

How do I fix CVE-2022-29957?

No fix has been published for CVE-2022-29957 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-2022-29957 being exploited?

There is no known exploitation of CVE-2022-29957 in the wild and no public exploit code.

Sources

Also known as GHSA-jqmm-x5xp-f3pq.