Vulnerability · Published May 3, 2024 · Assigned by zdi

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

High 7.5

In plain English

A high-severity missing authentication in Ignition from Inductive Automation. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.2% (higher than 67% of all known vulnerabilities).

Severity (CVSS 3.0)7.5High

Exploit odds (30 days)1.2%top 32.5% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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 (as reported)

Vendor	Product	Versions
Inductive Automation	Ignition	8.1.24

Weakness: CWE-306 · Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

References

ZDI-23-1014 x_research-advisory
vendor-provided URL vendor-advisory