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.
Project Subscriptions
| Vendors | Products |
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Jtekt
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Nano 10gx Tuc-1157
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Nano 10gx Tuc-1157 Firmware
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Nano Cpu Tuc-6941
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Nano Cpu Tuc-6941 Firmware
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Pc10b-p Tcc-6373
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Pc10b-p Tcc-6373 Firmware
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Pc10b Tcc-1021
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Pc10b Tcc-1021 Firmware
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Pc10e Tcc-4737
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Pc10e Tcc-4737 Firmware
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Pc10el Tcc-4747
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Pc10el Tcc-4747 Firmware
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Pc10g-cpu Tcc-6353
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Pc10g-cpu Tcc-6353 Firmware
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Pc10ge Tcc-6464
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Pc10ge Tcc-6464 Firmware
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Pc10p-dp-io Tcc-6752
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Pc10p-dp-io Tcc-6752 Firmware
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Pc10p-dp Tcc-6726
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Pc10p-dp Tcc-6726 Firmware
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Pc10p Tcc-6372
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Pc10p Tcc-6372 Firmware
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Pc10pe-1616p Tcc-1102
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Pc10pe-1616p Tcc-1102 Firmware
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Pc10pe Tcc-1101
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Pc10pe Tcc-1101 Firmware
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Pc3jx-d Tcc-6902
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Pc3jx-d Tcc-6902 Firmware
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Pc3jx Tcc-6901
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Pc3jx Tcc-6901 Firmware
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Pcdl Tkc-6688
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Pcdl Tkc-6688 Firmware
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Plus Cpu Tcc-6740
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Plus Cpu Tcc-6740 Firmware
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|
Advisories
| Source | ID | Title |
|---|---|---|
EUVD |
EUVD-2022-34265 | 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. |
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
No history.
Projects
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Status: PUBLISHED
Assigner: mitre
Published:
Updated: 2024-08-03T06:33:43.188Z
Reserved: 2022-04-29T00:00:00
Link: CVE-2022-29958
No data.
Status : Modified
Published: 2022-07-26T22:15:10.963
Modified: 2024-11-21T07:00:03.713
Link: CVE-2022-29958
No data.
OpenCVE Enrichment
No data.
Weaknesses
EUVD