description: 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.
problem types: Denial-of-service (DoS)
affected:
{
vendor: OMRON Corporation
product: CJ2M CPU Unit
versions:
version: CJ2M-CPU3[] Unit version of the built-in EtherNet/IP section Ver. 2.18 and earlier, status: affected
}
{
vendor: OMRON Corporation
product: CJ2H CPU Unit
versions:
version: CJ2H-CPU6[]-EIP Unit version of the built-in EtherNet/IP section Ver. 3.04 and earlier, status: affected
}
{
vendor: OMRON Corporation
product: CS/CJ Series EtherNet/IP Unit
versions:
version: CS1W-EIP21 V3.04 and earlier, status: affected
}
{
vendor: OMRON Corporation
product: CS/CJ Series EtherNet/IP Unit
versions:
version: CJ1W-EIP21 V3.04 and earlier, status: affected
}
