What’s Vulnerable › Vulnerabilities

CVE-2023-38123: Inductive Automation Ignition OPC UA Quick Client Missing Authentication for Critical Function Authentication Bypass Vulnerability

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-05-03 · updated 2026-06-17
• Weakness: CWE-306

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.

Affected products

• Inductive Automation Ignition: before 8.1.26 — fixed in 8.1.26

How to fix

Upgrade to a fixed version: Inductive Automation Ignition 8.1.26. Check the vendor advisory for mitigations.

References

• https://inductiveautomation.com/blog/inductive-automation-participates-in-pwn2own-to-strengthen-ignition-security
• https://www.zerodayinitiative.com/advisories/ZDI-23-1014/
• https://inductiveautomation.com/blog/inductive-automation-participates-in-pwn2own-to-strengthen-ignition-security
• https://www.zerodayinitiative.com/advisories/ZDI-23-1014/

Get alerted when CVE-2023-38123 or the next vulnerability affects your stack