9.8
CRITICAL
CVE-2022-29958
JTEKT TOYOPUC PLC Unauthenticated Remote Code Execution
Description

JTEKT TOYOPUC PLCs through 2022-04-29 do not ensure data integrity. They utilize the unauthenticated CMPLink/TCP protocol for engineering purposes, including downloading projects and control logic to the PLC. Control logic is downloaded to the PLC on a block-by-block basis with a given memory address and a blob of machine code. The logic that is downloaded to the PLC is not cryptographically authenticated, allowing an attacker to execute arbitrary machine code on the PLC's CPU module in the context of the runtime. In the case of the PC10G-CPU, and likely for other CPU modules of the TOYOPUC family, a processor without MPU or MMU is used and this no memory protection or privilege-separation capabilities are available, giving an attacker full control over the CPU.

INFO

Published Date :

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

Last Modified :

Aug. 3, 2022, 1:13 p.m.

Remotely Exploitable :

Yes !

Impact Score :

5.9

Exploitability Score :

3.9
Affected Products

The following products are affected by CVE-2022-29958 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 Jtekt pc10g-cpu_tcc-6353_firmware
2 Jtekt pc10ge_tcc-6464_firmware
3 Jtekt pc10p_tcc-6372_firmware
4 Jtekt pc10p-dp_tcc-6726_firmware
5 Jtekt pc10p-dp-io_tcc-6752_firmware
6 Jtekt pc10b-p_tcc-6373_firmware
7 Jtekt pc10b_tcc-1021_firmware
8 Jtekt pc10e_tcc-4737_firmware
9 Jtekt plus_cpu_tcc-6740_firmware
10 Jtekt pc10pe_tcc-1101_firmware
11 Jtekt pc10pe-1616p_tcc-1102_firmware
12 Jtekt nano_10gx_tuc-1157_firmware
13 Jtekt nano_cpu_tuc-6941_firmware
14 Jtekt pc10el_tcc-4747_firmware
15 Jtekt pc3jx_tcc-6901_firmware
16 Jtekt pc3jx-d_tcc-6902_firmware
17 Jtekt pcdl_tkc-6688_firmware
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-2022-29958.

URL Resource
https://www.cisa.gov/uscert/ics/advisories/icsa-22-172-02 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-2022-29958 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2022-29958 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 [email protected]

    May. 14, 2024

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

    Aug. 03, 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-22-172-02 No Types Assigned https://www.cisa.gov/uscert/ics/advisories/icsa-22-172-02 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-345
    Added CPE Configuration AND OR *cpe:2.3:o:jtekt:pc10g-cpu_tcc-6353_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:jtekt:pc10g-cpu_tcc-6353:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:jtekt:pc10ge_tcc-6464_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:jtekt:pc10ge_tcc-6464:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:jtekt:pc10p_tcc-6372_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:jtekt:pc10p_tcc-6372:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:jtekt:pc10p-dp_tcc-6726_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:jtekt:pc10p-dp_tcc-6726:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:jtekt:pc10p-dp-io_tcc-6752_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:jtekt:pc10p-dp-io_tcc-6752:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:jtekt:pc10b-p_tcc-6373_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:jtekt:pc10b-p_tcc-6373:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:jtekt:pc10b_tcc-1021_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:jtekt:pc10b_tcc-1021:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:jtekt:pc10e_tcc-4737_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:jtekt:pc10e_tcc-4737:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:jtekt:pc10el_tcc-4747_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:jtekt:pc10el_tcc-4747:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:jtekt:plus_cpu_tcc-6740_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:jtekt:plus_cpu_tcc-6740:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:jtekt:pc3jx_tcc-6901_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:jtekt:pc3jx_tcc-6901:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:jtekt:pc3jx-d_tcc-6902_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:jtekt:pc3jx-d_tcc-6902:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:jtekt:pc10pe_tcc-1101_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:jtekt:pc10pe_tcc-1101:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:jtekt:pc10pe-1616p_tcc-1102_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:jtekt:pc10pe-1616p_tcc-1102:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:jtekt:pcdl_tkc-6688_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:jtekt:pcdl_tkc-6688:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:jtekt:nano_10gx_tuc-1157_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:jtekt:nano_10gx_tuc-1157:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:jtekt:nano_cpu_tuc-6941_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:jtekt:nano_cpu_tuc-6941:-:*:*:*:*:*:*:*
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-2022-29958 is associated with the following CWEs:

Exploit Prediction

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

0.14 }} -0.00%

score

0.48319

percentile

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