(Pwn2Own) Inductive Automation Ignition ServerMessageHeader Deserialization Of Untrusted Data Remote Code Execution Vulnerability

June 1st, 2020
ZDI-20-687 ZDI-CAN-10278

CVE ID

CVE-2020-12000

CVSS Score

9.8 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Vendors

Inductive Automation

Affected Products

Ignition

Vulnerability Details

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Inductive Automation Ignition. Authentication is not required to exploit this vulnerability.

The specific flaw exists with the handling of serialized data. The issue results from the lack of proper validation of user-supplied data, which can result in deserialization of untrusted data. An attacker can leverage this vulnerability to execute code in the context of SYSTEM.

Additional Details

https://www.us-cert.gov/ics/advisories/icsa-20-147-01


Disclosure Timeline

  • 2020-01-30 - Vulnerability reported to vendor
  • 2020-06-01 - Coordinated public release of advisory

Credit

Chris Anastasio (muffin) and Steven Seeley (mr_me) of Incite Team

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