CVE-2023-38123 Auth bypass in Ignition

What is CVE-2023-38123?

CVE-2023-38123 is a high-severity authentication bypass vulnerability in Inductive Automation Ignition, published on 3 May 2024. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

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.

Weakness: CWE-306

Which versions are affected by CVE-2023-38123?

It affects 1 product.

Products include Inductiveautomation Ignition.

How do I fix CVE-2023-38123?

No fix has been published for CVE-2023-38123 yet. Limit exposure of the affected software until one is available.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2023-38123 being exploited?

There is no known exploitation of CVE-2023-38123 in the wild and no public exploit code.

Other vulnerabilities in Inductive Automation Ignition

• CVE-2023-39475 Deserialization in Ignition Critical 9.8
• CVE-2023-39476 Deserialization in Ignition Critical 9.8
• CVE-2022-35890 Auth bypass in n/a Critical 9.8
• CVE-2023-39473 Deserialization in Ignition High 8.8
• CVE-2023-50218 Inductive Automation Ignition ModuleInvoke Deserialization of Untrusted Data Remote Code Execution Vulnerability High 8.8

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-qmh2-7rwj-4vp8.