SRC-2022-0013 : Inductive Automation Ignition GatewaySessionManagerImpl Authentication Bypass Vulnerability

CVE ID: CVE-2022-35890

CVSS Score: 8.1, (/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H)

Affected Vendors: Inductive

Affected Products: Inductive Automation Ignition

Vulnerability Details: This vulnerability allows remote attackers to bypass authentication on affected installations of Inductive Automation Ignition. Authentication is not required to exploit this vulnerability. The specific flaw exists within GatewaySessionManagerImpl class.

The issue results from the use of a fixed seed for session id generation when using the SecureRandom API. An attacker can leverage this vulnerability to predict an authenticated session and access the gateway.

Vendor Response:

Inductive has issued an update to correct this vulnerability. More details can be found at: https://support.inductiveautomation.com/hc/en-us/articles/7625759776653

Disclosure Timeline:

• 2022-04-22 – Sent to Inductive PSIRT

• 2022-05-12 – Coordinated public release of advisory

Proof of Concept: https://github.com/sourceincite/randy

Credit: This vulnerability was discovered by Chris Anastasio (muffin) and Steven Seeley (mr_me) of Incite Team