CVE-2022-35871 Auth bypass in Ignition

What is CVE-2022-35871?

CVE-2022-35871 is a high-severity authentication bypass vulnerability in Inductive Automation Ignition, published on 25 Jul 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Inductive Automation Ignition 8.1.15 (b2022030114). Authentication is not required to exploit this vulnerability. The specific flaw exists within the authenticateAdSso method. The issue results from the lack of authentication prior to allowing the execution of python code. An attacker can leverage this vulnerability to execute code in the context of SYSTEM. Was ZDI-CAN-17206.

Weakness: CWE-306

Which versions are affected by CVE-2022-35871?

It affects 1 product.

Products include Inductiveautomation Ignition.

How do I fix CVE-2022-35871?

No fix has been published for CVE-2022-35871 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-2022-35871 being exploited?

There is no known exploitation of CVE-2022-35871 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-r5vj-595h-w86q.