CVE-2023-38744: High severity omron sysmac cj2m-cpu35 firmware vulnerability
Denial-of-service (DoS) vulnerability due to improper validation of specified type of input issue exists in the built-in EtherNet/IP port of the CJ Series CJ2 CPU unit and the communication function of the CS/CJ Series EtherNet/IP unit. If an affected product receives a packet which is specially crafted by a remote unauthenticated attacker, the unit of the affected product may fall into a denial-of-service (DoS) condition. Affected products/versions are as follows: CJ2M CPU Unit CJ2M-CPU3[] Unit version of the built-in EtherNet/IP section Ver. 2.18 and earlier, CJ2H CPU Unit CJ2H-CPU6[]-EIP Unit version of the built-in EtherNet/IP section Ver. 3.04 and earlier, CS/CJ Series EtherNet/IP Unit CS1W-EIP21 V3.04 and earlier, and CS/CJ Series EtherNet/IP Unit CJ1W-EIP21 V3.04 and earlier.
Affected Software
Event History
Frequently Asked Questions
What is the vulnerability ID of this issue?
The vulnerability ID of this issue is CVE-2023-38744.
What is the severity level of CVE-2023-38744?
The severity level of CVE-2023-38744 is high with a severity value of 7.5.
How does the vulnerability affect the affected products?
The vulnerability affects the built-in EtherNet/IP port of the CJ Series CJ2 CPU unit and the communication function of the CS/CJ Series EtherNet/IP unit.
How can the vulnerability be exploited?
The vulnerability can be exploited by sending a specifically crafted packet to the affected product.
Is there a fix available for CVE-2023-38744?
Yes, Omron has released firmware updates to address the vulnerability. Please refer to the product documentation or contact Omron for more information.