9.8
CRITICAL
CVE-2022-31206
Omron SYSMAC Nx PLCs Cryptographic Authentication Bypass
Description

The Omron SYSMAC Nx product family PLCs (NJ series, NY series, NX series, and PMAC series) through 2022-005-18 lack cryptographic authentication. These PLCs are programmed using the SYMAC Studio engineering software (which compiles IEC 61131-3 conformant POU code to native machine code for execution by the PLC's runtime). The resulting machine code is executed by a runtime, typically controlled by a real-time operating system. The logic that is downloaded to the PLC does not seem to be cryptographically authenticated, allowing an attacker to manipulate transmitted object code to the PLC and execute arbitrary machine code on the processor of the PLC's CPU module in the context of the runtime. In the case of at least the NJ series, an RTOS and hardware combination is used that would potentially allow for memory protection and privilege separation and thus limit the impact of code execution. However, it was not confirmed whether these sufficiently segment the runtime from the rest of the RTOS.

INFO

Published Date :

July 26, 2022, 10:15 p.m.

Last Modified :

Nov. 21, 2024, 7:04 a.m.

Remotely Exploitable :

Yes !

Impact Score :

5.9

Exploitability Score :

3.9
Affected Products

The following products are affected by CVE-2022-31206 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Omron nj501-1500_firmware
2 Omron nj501-1400_firmware
3 Omron nj501-1300_firmware
4 Omron nj501-5300_firmware
5 Omron nj501-1520_firmware
6 Omron nj501-1420_firmware
7 Omron nj501-1320_firmware
8 Omron nj101-1020_firmware
9 Omron nj101-9020_firmware
10 Omron nj501-1340_firmware
11 Omron nj501-4400_firmware
12 Omron nj501-4300_firmware
13 Omron nj501-4500_firmware
14 Omron nj501-4320_firmware
15 Omron nj301-1200_firmware
16 Omron nj301-1100_firmware
17 Omron nj101-1000_firmware
18 Omron nj101-9000_firmware
19 Omron nx701-1720_firmware
20 Omron nx701-1620_firmware
21 Omron nx701-1600_firmware
22 Omron nx701-1700_firmware
23 Omron nx701-z700_firmware
24 Omron nx701-z600_firmware
25 Omron nj501-5300-1_firmware
26 Omron nj101-1000
27 Omron nj101-1020
28 Omron nj101-9000
29 Omron nj101-9020
30 Omron nj301-1100
31 Omron nj301-1200
32 Omron nj501-1300
33 Omron nj501-1320
34 Omron nj501-1340
35 Omron nj501-1400
36 Omron nj501-1420
37 Omron nj501-1500
38 Omron nj501-1520
39 Omron nj501-4300
40 Omron nj501-4320
41 Omron nj501-4400
42 Omron nj501-4500
43 Omron nj501-5300
44 Omron nj501-5300-1
45 Omron nx701-1600
46 Omron nx701-1620
47 Omron nx701-1700
48 Omron nx701-1720
49 Omron nx701-z600
50 Omron nx701-z700
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2022-31206.

URL Resource
https://www.cisa.gov/uscert/ics/advisories/icsa-22-179-02 Third Party Advisory US Government Resource
https://www.forescout.com/blog/ Third Party Advisory
https://www.cisa.gov/uscert/ics/advisories/icsa-22-179-02 Third Party Advisory US Government Resource
https://www.forescout.com/blog/ Third Party Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2022-31206 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2022-31206 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference https://www.cisa.gov/uscert/ics/advisories/icsa-22-179-02
    Added Reference https://www.forescout.com/blog/
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Initial Analysis by [email protected]

    Aug. 04, 2022

    Action Type Old Value New Value
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    Changed Reference Type https://www.cisa.gov/uscert/ics/advisories/icsa-22-179-02 No Types Assigned https://www.cisa.gov/uscert/ics/advisories/icsa-22-179-02 Third Party Advisory, US Government Resource
    Changed Reference Type https://www.forescout.com/blog/ No Types Assigned https://www.forescout.com/blog/ Third Party Advisory
    Added CWE NIST CWE-347
    Added CPE Configuration AND OR *cpe:2.3:o:omron:nx701-1600_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 1.29 OR cpe:2.3:h:omron:nx701-1600:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:omron:nx701-1620_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 1.29 OR cpe:2.3:h:omron:nx701-1620:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:omron:nx701-1700_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 1.29 OR cpe:2.3:h:omron:nx701-1700:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:omron:nx701-1720_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 1.29 OR cpe:2.3:h:omron:nx701-1720:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:omron:nx701-z600_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 1.29 OR cpe:2.3:h:omron:nx701-z600:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:omron:nx701-z700_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 1.29 OR cpe:2.3:h:omron:nx701-z700:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:omron:nj101-1000_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 1.49 OR cpe:2.3:h:omron:nj101-1000:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:omron:nj101-1020_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 1.49 OR cpe:2.3:h:omron:nj101-1020:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:omron:nj101-9000_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 1.49 OR cpe:2.3:h:omron:nj101-9000:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:omron:nj101-9020_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 1.49 OR cpe:2.3:h:omron:nj101-9020:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:omron:nj301-1100_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 1.49 OR cpe:2.3:h:omron:nj301-1100:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:omron:nj301-1200_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 1.49 OR cpe:2.3:h:omron:nj301-1200:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:omron:nj501-1300_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 1.49 OR cpe:2.3:h:omron:nj501-1300:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:omron:nj501-1320_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 1.49 OR cpe:2.3:h:omron:nj501-1320:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:omron:nj501-1340_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 1.49 OR cpe:2.3:h:omron:nj501-1340:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:omron:nj501-1400_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 1.49 OR cpe:2.3:h:omron:nj501-1400:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:omron:nj501-1420_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 1.49 OR cpe:2.3:h:omron:nj501-1420:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:omron:nj501-1500_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 1.49 OR cpe:2.3:h:omron:nj501-1500:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:omron:nj501-1520_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 1.49 OR cpe:2.3:h:omron:nj501-1520:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:omron:nj501-4300_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 1.49 OR cpe:2.3:h:omron:nj501-4300:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:omron:nj501-4320_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 1.49 OR cpe:2.3:h:omron:nj501-4320:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:omron:nj501-4400_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 1.49 OR cpe:2.3:h:omron:nj501-4400:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:omron:nj501-4500_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 1.49 OR cpe:2.3:h:omron:nj501-4500:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:omron:nj501-5300_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 1.49 OR cpe:2.3:h:omron:nj501-5300:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:omron:nj501-5300-1_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 1.49 OR cpe:2.3:h:omron:nj501-5300-1:-:*:*:*:*:*:*:*
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2022-31206 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2022-31206 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.31 }} 0.07%

score

0.69848

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability