Vulnerabilities

Out-of-bounds read vulnerability exists in CX-Programmer included in CX-One CXONE-AL[][]D-V4 Ver. 9.81 or lower. Opening a specially crafted project file may lead to information disclosure and/or the product being crashed.

Path traversal vulnerability exists in Machine Automation Controller NJ Series and Machine Automation Controller NX Series. An arbitrary file in the affected product may be accessed or arbitrary code may be executed by processing a specially crafted request sent from a remote attacker with an administrative privilege. As for the details of the affected product names/versions, see the information provided by the vendor under [References] section.

Project files may contain malicious contents which the software will use to create files on the filesystem. This allows directory traversal and overwriting files with the privileges of the logged-in user.

The Omron FINS protocol has an authenticated feature to prevent access to memory regions. Authentication is susceptible to bruteforce attack, which may allow an adversary to gain access to protected memory. This access can allow overwrite of values including programmed logic.

An attacker with network access to the affected PLC (CJ-series and CS-series PLCs, all versions) may use a network protocol to read and write files on the PLC internal memory and memory card.

Sysmac Studio installs executables in a directory with poor permissions. This can allow a locally-authenticated attacker to overwrite files which will result in code execution with privileges of a different user.

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.

Omron CJ1M unit v4.0 and prior has improper access controls on the memory region where the UM password is stored. If an adversary issues a PROGRAM AREA WRITE command to a specific memory region, they could overwrite the password. This may lead to disabling UM protections or setting a non-ASCII password (non-keyboard characters) and preventing an engineer from viewing or modifying the user program.

OMRON CX-Programmer 9.78 and prior is vulnerable to an Out-of-Bounds Write, which may allow an attacker to execute arbitrary code.

OMRON CX-Programmer 9.78 and prior is vulnerable to an Out-of-Bounds Write, which may allow an attacker to execute arbitrary code.

OMRON CX-Programmer 9.78 and prior is vulnerable to an Out-of-Bounds Write, which may allow an attacker to execute arbitrary code.

Opening a specially crafted file could cause the affected product to fail to release its memory reference potentially resulting in arbitrary code execution.

Omron CX-Position (versions 2.5.3 and prior) is vulnerable to multiple stack-based buffer overflow conditions while parsing a specific project file, which may allow an attacker to locally execute arbitrary code.

Omron CX-Position (versions 2.5.3 and prior) is vulnerable to an out-of-bounds write while processing a specific project file, which may allow an attacker to execute arbitrary code.

Omron CX-Position (versions 2.5.3 and prior) is vulnerable to a use after free memory condition while processing a specific project file, which may allow an attacker to execute arbitrary code.

Omron CX-Position (versions 2.5.3 and prior) is vulnerable to memory corruption while processing a specific project file, which may allow an attacker to execute arbitrary code.

Omron CX-One Versions 4.60 and prior are vulnerable to a stack-based buffer overflow while processing specific project files, which may allow an attacker to execute arbitrary code.

This vulnerability allows local attackers to execute arbitrary code due to the lack of proper validation of user-supplied data, which can result in a type-confusion condition in the Omron CX-One Version 4.60 and prior devices.

The Omron CX-One Version 4.60 and prior is vulnerable to a stack-based buffer overflow, which may allow an attacker to remotely execute arbitrary code.

The Omron CX-One Version 4.60 and prior may allow an attacker to supply a pointer to arbitrary memory locations, which may allow an attacker to remotely execute arbitrary code.

Omron’s CS and CJ series PLCs have an unrestricted externally accessible lock vulnerability.

When processing project files, the application (Omron CX-Programmer v9.70 and prior and Common Components January 2019 and prior) fails to check if it is referencing freed memory. An attacker could use a specially crafted project file to exploit and execute code under the privileges of the application.

When processing project files in Omron CX-Supervisor Versions 3.4.1.0 and prior, the application fails to check if it is referencing freed memory, which may allow an attacker to execute code under the context of the application.

When processing project files in Omron CX-Supervisor Versions 3.4.1.0 and prior and tampering with a specific byte, memory corruption may occur within a specific object.

A type confusion vulnerability exists when processing project files in Omron CX-Supervisor Versions 3.4.1.0 and prior, which may allow an attacker to execute code in the context of the application.

When processing project files in Omron CX-Supervisor Versions 3.4.1.0 and prior and tampering with the value of an offset, an attacker can force the application to read a value outside of an array.