What is CVE-2022-29957?

CVE-2022-29957 is a high-severity vulnerability in Emerson Deltav Distributed Control System, classified under Missing Authentication for Critical Function. CVSS score: 7.8/10. Published 2022-07-26.

How severe is CVE-2022-29957?

High severity. CVSS v3 base score is 7.8 out of 10.

Auth bypass in Emerson Deltav Distributed Control System

CVE-2022-29957

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.

Vulnerability class: Broken Authentication

EPSS: 0.002 (12.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Emerson Deltav_distributed_control_system
N/a — versions n/a

Weakness classification (CWE)

CWE-306 — Missing Authentication for Critical Function

References

cve@mitre.org (Third Party Advisory, x_refsource_MISC)
cve@mitre.org (US Government Resource, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2022-29957?: CVE-2022-29957 is a high-severity vulnerability in Emerson Deltav Distributed Control System, classified under Missing Authentication for Critical Function. CVSS score: 7.8/10. Published 2022-07-26.
How severe is CVE-2022-29957?: High severity. CVSS v3 base score is 7.8 out of 10.