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CVE-2022-29958
CVE ID
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CVE-2022-29958
MITRE ATT&CK
Collection
Command and Control
Credential Access
Defense Evasion
Discovery
Execution
Exfiltration
Impact
Initial Access
Lateral Movement
Persistence
Privilege Escalation
Topic Tags
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.
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CVSS V3 Severity and Metrics
General Information
Vendors
Products
- nano 10gx tuc-1157 firmware -,
- nano cpu tuc-6941 firmware -,
- pc10b tcc-1021 firmware -,
- pc10b-p tcc-6373 firmware -,
- pc10e tcc-4737 firmware -,
- pc10el tcc-4747 firmware -,
- pc10g-cpu tcc-6353 firmware -,
- pc10ge tcc-6464 firmware -,
- pc10p tcc-6372 firmware -,
- pc10p-dp tcc-6726 firmware -,
- pc10p-dp-io tcc-6752 firmware -,
- pc10pe tcc-1101 firmware -,
- pc10pe-1616p tcc-1102 firmware -,
- pc3jx tcc-6901 firmware -,
- pc3jx-d tcc-6902 firmware -,
- pcdl tkc-6688 firmware -,
- plus cpu tcc-6740 firmware -
References
Additional Info
Technical Analysis
Report as Emergent Threat Response
Report as Zero-day Exploit
Report as Exploited in the Wild
CVE ID
AttackerKB requires a CVE ID in order to pull vulnerability data and references from the CVE list and the National Vulnerability Database. If available, please supply below: