PT-2022-20942 · 3S Smart Software Solutions · Codesys Gateway Server

Published 2022-06-24 · Updated 2025-07-01 · CVE-2022-31802

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions CODESYS Gateway Server V2 versions prior to V2.3.9.38

Description The issue allows an attacker to perform authentication by specifying a small password that matches a part of the longer real CODESYS Gateway password, as only a part of the specified password is compared to the real password.

Recommendations For versions prior to V2.3.9.38, update to version V2.3.9.38 or later to resolve the issue. As a temporary workaround, consider restricting access to the authentication mechanism until a patch is applied.

Fix

DoS

Weakness Enumeration

CWE-187

Related Identifiers

CVE-2022-31802

Affected Products

Codesys Gateway Server

References · 6

• https://customers.codesys.com/index.php?eID=dumpFile&t=f&f=17141&token=17867e35cfd30c77ba0137f9a17b3a557a4b7b66&download= · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2022-31802 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2022-31802 · Security Note
• https://t.me/cvenotify/32479 · Telegram Post
• https://twitter.com/0dayPublishing/status/1940100357612273993 · Twitter Post
• https://t.me/cvenotify/32088 · Telegram Post