CVE-2023-38123

Name: CVE-2023-38123
Creator: NVD / NIST
Published: 2024-05-03T02:15:56.74+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 1.13%

Last modified Jun 17, 2026

CVE-2023-38123 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. Inductive Automation Ignition OPC UA Quick Client Missing Authentication for Critical Function Authentication Bypass Vulnerability. This vulnerability allows remote attackers to bypass authentication on affected installations of Inductive Automation Ignition. EPSS estimates a 1.13% chance of exploitation in the next 30 days.

Description

Inductive Automation Ignition OPC UA Quick Client Missing Authentication for Critical Function Authentication Bypass Vulnerability. This vulnerability allows remote attackers to bypass authentication on affected installations of Inductive Automation Ignition. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the server configuration. The issue results from the lack of authentication prior to allowing access to password change functionality. An attacker can leverage this vulnerability to bypass authentication on the system. Was ZDI-CAN-20540.

Metrics

CVSS 3.1

8.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS Probability

1.13%

62.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Inductiveautomation	Ignition	< 8.1.26

References

https://inductiveautomation.com/blog/inductive-automation-participates-in-pwn2own-to-strengthen-ignition-securityVendor Advisory
https://www.zerodayinitiative.com/advisories/ZDI-23-1014/Third Party Advisory
https://inductiveautomation.com/blog/inductive-automation-participates-in-pwn2own-to-strengthen-ignition-securityVendor Advisory
https://www.zerodayinitiative.com/advisories/ZDI-23-1014/Third Party Advisory

Timeline

Published: May 3, 2024
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2023-38123?

How severe is CVE-2023-38123?

CVE-2023-38123 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 1.13% probability of exploitation in the next 30 days.

How do I fix CVE-2023-38123?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-38123?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST