CWE
284
Advisory Published
Updated

CVE-2023-0811

First published: Thu Mar 16 2023(Updated: )

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.

Credit: ics-cert@hq.dhs.gov

Affected SoftwareAffected VersionHow to fix
Omron SYSMAC CJ-series
Omron SYSMAC CJ-series
Omron CJ2H-CPU6
Omron CJ2M-CPU15
Omron CJ1
Omron SYSMAC CS-series   CS1H-CPU □ □ H: All versions  CS1G-CPU □ □ H: All versions  CS1D-CPU □ □ HA: All versions  CS1D-CPU □ □ H: All versions  CS1D-CPU □ □ SA: All versions  CS1D-CPU □ □ S: All versions  CS1D-CPU □ □ P
Omron CS1H-CPU64H
Omron CS1G-CPU43H
Omron CS1D-CPU
Omron CS1D-CPU H
Omron CS1D-CPU
Omron CS1D-CPU44S
Omron CS1D-CPU67P
Omron SYSMAC CP-series  CP2E-E □ □ D □ - □: All versions  CP2E-S □ □ D □- □ All versions  CP2E-N □ □ D □ - □: All versions  CP1H-X40D □ - □: All versions  CP1H-XA40D □ - □: All versions  CP1H-Y20DT-D: All versions   CP1L-EL20D □ - □: All versions  CP1L-EM □ □ D □ - □: All versions  CP1L-L □ □ D □- □: All versions  CP1L-M □ □ D □ - □: All versions  CP1E-E □ □ D □ - □: All versions  CP1E-NA □ □ D □ - □
Omron CP2E-E
Omron CP2E
Omron CP2E-N40DT-D
Omron CP1H-X40DR-A
Omron CP1H-XA40DT1-D
Omron Sysmac CP1H-Y20DT-D
Omron CP1L-EL20D
Omron CP1L-EM
Omron CP1L-L Series
Omron CP1L-M30DR-D
Omron CP1E
Omron CP1E-NA
Omron CJ2H-CPU64-EIP Firmware
Omron Sysmac CJ2H-CPU64 Firmware
Omron CJ2H-CPU64-EIP Firmware
Omron Sysmac CJ2H-CPU64-EIP Firmware
Omron CJ2H-CPU65 Firmware
Omron Sysmac CJ2H-CPU65 Firmware
Omron Sysmac CJ2H-CPU68
Omron CJ2H-CPU65-EIP
Omron Sysmac CJ2H Firmware
Omron Sysmac CJ2H-CPU66 Firmware
Omron Sysmac CJ2H-CPU68
Omron CJ2H-CPU66-EIP
Omron CJ2H-CPU67 Firmware
Omron CJ2H-CPU67 Firmware
Omron CJ2H-CPU67-EIP Firmware
Omron CJ2H-CPU67-EIP Firmware
Omron Sysmac CJ2H-CPU68-EIP Firmware
Omron CJ2H-CPU68 Firmware
Omron Sysmac CJ2H
Omron Sysmac CJ2H-CPU68-EIP Firmware
Omron CJ2M-CPU11 Firmware
Omron Sysmac CJ2M-CPU11 Firmware
Omron CJ2M-CPU12 Firmware
Omron Sysmac CJ2M-CPU12 Firmware
Omron CJ2M-CPU13
Omron Sysmac CJ2M-CPU13 Firmware
Omron Sysmac CJ2M-CPU14 Firmware
Omron Sysmac CJ2M-CPU14 Firmware
Omron CJ2M-CPU15
Omron Sysmac CJ2M-CPU15 Firmware
Omron CJ2M-CPU31 Firmware
Omron Sysmac CJ2M-CPU31 Firmware
Omron CJ2M-CPU32 Firmware
Omron Sysmac CJ2M-CPU32 Firmware
Omron Sysmac CJ2M-CPU
Omron Sysmac CJ2M-CPU33 Firmware
Omron Sysmac CJ2M-CPU34
Omron Sysmac CJ2M-CPU34 Firmware
Omron CJ2M-CPU35 Firmware
Omron Sysmac CJ2M-CPU35 Firmware
Omron CP1E-E10DR-A Firmware
Omron Sysmac CP1E-E10DR-A
Omron Sysmac CP1E-E10DR-D
Omron Sysmac CP1E-E10DR-D Firmware
Omron Sysmac CP1E-E10DT-A Firmware
Omron Sysmac Cp1e-e10dt-a Firmware
Omron Sysmac CP1E-E10DT-D
Omron Sysmac CP1E-E10DT-D Firmware
Omron Sysmac CP1E-E10DT1-A
Omron CP1E-E10DT1-A
Omron Sysmac CP1E-E10DT1-D Firmware
Omron Sysmac Cp1e-e10dt1-d Firmware
Omron Sysmac CP1E-E14DR-A
Omron Sysmac CP1E-E14SDR-A
Omron Sysmac CP1E-E14DR-A
Omron Sysmac CP1E
Omron Sysmac CP1E-E20SDR-A Firmware
Omron Sysmac CP1E
Omron Sysmac CP1E-E20SDR-A Firmware
Omron Sysmac Cp1e-e20sdr-a Firmware
Omron Sysmac CP1E-E30DR-A
Omron Sysmac CP1E-E30SDR-A
Omron Sysmac CP1E-E30SDR-A
Omron Sysmac CP1E-E30SDR-A Firmware
Omron CP1E-E40DR-A Firmware
Omron Sysmac CP1E-E40DR-A Firmware
Omron Sysmac CP1E-E40SDR-A
Omron Sysmac CP1E-E40SDR-A Firmware
Omron Sysmac CP1E-E60SDR-A
Omron Sysmac CP1E-E60SDR-A
Omron Sysmac CP1E-NA20DR-A
Omron Sysmac CP1E-NA20DR-A Firmware
Omron CP1E-NA20DT-D Firmware
Omron Sysmac CP1E-NA20DT-D Firmware
Omron Sysmac CP1E-NA20DT1-D Firmware
Omron Sysmac CP1E-NA20DT1-D Firmware
Omron Sysmac CP1H Firmware
Omron Sysmac CP1H-X40DR-A Firmware
Omron Sysmac CP1H Firmware
Omron Sysmac CP1H-X40DT-D Firmware
Omron Sysmac CP1H-X40DT-D
Omron Sysmac CP1H-X40DT1-D Firmware
Omron CP1H-XA40DR-A Firmware
Omron Sysmac CP1H-XA40DR-A Firmware
Omron Sysmac CP1H-XA40DT-D
Omron CP1H-XA40DT-D Firmware
Omron CP1H-XA40DT-D Firmware
Omron Sysmac CP1H-XA40DT1-D Firmware
Omron Sysmac CP1H Firmware
Omron Sysmac CP1H-Y20DT-D Firmware
Omron CP1L-EL20DR-D Firmware
Omron Sysmac CP1L-EL20DR-D Firmware
Omron Sysmac CP1L-EM30DR-D Firmware
Omron Sysmac CP1L-EM30DR-D Firmware
Omron Sysmac CP1L-EM30DR-D Firmware
Omron CP1L-EM30DT-D
Omron Sysmac CP1L-EM30DT1-D
Omron CP1L-EM30DT1-D
Omron CP1L-EM40DR-D
Omron Sysmac CP1L-EM40DR-D Firmware
Omron Sysmac CP1L-EM40DT-D
Omron Sysmac CP1L-EM40DT-D Firmware
Omron CP1L-EM40DT1-D Firmware
Omron Sysmac CP1L-EM40DT1-D Firmware
Omron CP1L-L10DR-A Firmware
Omron Sysmac CP1L
Omron Sysmac CP1L-L10DR-D
Omron Sysmac CP1L
Omron CP1L-L10DT-A Firmware
Omron Sysmac CP1L-L10DT-A Firmware
Omron Sysmac CP1L-L10DT-D Firmware
Omron Sysmac CP1L-L10DT-D Firmware
Omron Sysmac CP1L-L10DT1-D Firmware
Omron Sysmac CP1L-L10DT1-D Firmware
Omron Sysmac CP1L-L14DR-A Firmware
Omron Sysmac CP1L-L14DR-A Firmware
Omron Sysmac CP1L-L14DR-D
Omron Sysmac CP1L-L14DR-D Firmware
Omron Sysmac CP1L-L14DR-A Firmware
Omron Sysmac CP1L-L14DT-A Firmware
Omron CP1L-L14DT-D Firmware
Omron CP1L-L14DT-D
Omron Cp1l-l14dt1-d Firmware
Omron Sysmac CP1L-L14DT-D
Omron Sysmac CP1L-L20DR-A
Omron Sysmac CP1L-L20DR-A Firmware
Omron CP1L-L20DR-D Firmware
Omron Sysmac CP1L-L20DR-D Firmware
Omron Sysmac CP1L-L20DT-A
Omron Sysmac CP1L-L20DT-A Firmware
Omron CP1L-L20DT-D Firmware
Omron Sysmac CP1L-L20DT-D Firmware
Omron CP1L-L20DT1-D Firmware
Omron Sysmac CP1L
Omron Sysmac CP1L-M30DR-A
Omron CP1L-M30DR-A
Omron CP1L-M30DR-D Firmware
Omron Sysmac CP1L-M30DR-D Firmware
Omron CP1L-M30DT-A Firmware
Omron Sysmac CP1L-M30DT-A Firmware
Omron Sysmac CP1L-M30DT1-D Firmware
Omron Sysmac CP1L-M30DT-D Firmware
Omron CP1L-M30DT1-D Firmware
Omron Sysmac CP1L-M30DT1-D Firmware
Omron Sysmac CP1L-M40DR-A
Omron Sysmac CP1L
Omron Sysmac CP1L-M40DR-D
Omron Sysmac CP1L-M40DR-D Firmware
Omron Sysmac CP1L-M40DT-A
Omron Sysmac CP1L-M40DT-A Firmware
Omron Sysmac CP1L-M40DT-D
Omron Sysmac CP1L-M40DT-D Firmware
Omron Sysmac CP1L-M40DT1-D
Omron Sysmac CP1L-M40DT1-D Firmware
Omron Sysmac CP1L-M60DR-A
Omron Sysmac CP1L-M60DR-A Firmware
Omron Sysmac CP1L-M60D Firmware
Omron Sysmac CP1L-M60DR-D Firmware
Omron CP1L-M60DT-A Firmware
Omron Sysmac CP1L-M60DT-A Firmware
Omron Sysmac CP1L-M60DT-D
Omron Sysmac CP1L-M60
Omron CP1L-M60DT1-D Firmware
Omron Sysmac CP1L
Omron Sysmac CP2E-E14DR-A
Omron CP2E-E14DR-A
Omron Sysmac CP2E-E20DR-A
Omron CP2E-E20DR-A
Omron Cp2e-e30dr-a Firmware
Omron Sysmac Cp2e-e30dr-a Firmware
Omron Sysmac CP2E-E40DR-A
Omron Sysmac CP2E-E40DR-A Firmware
Omron Cp2e-e60dr-a Firmware
Omron CP2E-E60DR-A
Omron Sysmac CP2E-N14DR-A
Omron Sysmac CP2E
Omron Sysmac CP2E-N14DR-D
Omron Sysmac CP2E-N14DR-D Firmware
Omron Sysmac CP2E-N14DT-A Firmware
Omron Sysmac CP2E-N14DT-A Firmware
Omron CP2E-N14DT-D Firmware
Omron Sysmac CP2E-N14DT1-D
Omron Sysmac Cp2e-n30dt1-d
Omron Sysmac CP2E-N14DT1-D
Omron Sysmac CP2E-N20DR-A
Omron Sysmac CP2E-N20DR-A Firmware
Omron Sysmac CP2E-N20DR-D
Omron Sysmac CP2E-N20DR-D Firmware
Omron Sysmac CP2E-N20DT-A Firmware
Omron Sysmac Cp2e-n20dt-a Firmware
Omron Sysmac CP2E-N20DT-D
Omron Sysmac CP2E-N20DT-D
Omron Sysmac CP2E-N20DT1-D Firmware
Omron Sysmac CP2E-N20DT1-D Firmware
Omron CP2E-N30DR-A Firmware
Omron Sysmac Cp2e-n30dr-a Firmware
Omron Sysmac Cp2e-n30dt1-d
Omron CP2E-N30DR-D
Omron Sysmac CP2E-N30DT-A Firmware
Omron Sysmac CP2E-N30DT-A Firmware
Omron Sysmac CP2E-N30DT1-D Firmware
Omron Sysmac CP2E-N30DT-D
Omron Sysmac CP2E-N30DT1-D
Omron Sysmac CP2E-N30DT1-D Firmware
Omron Cp2e-n40dr-a Firmware
Omron CP2E-N40DR-A
Omron Cp2e-n40dr-d Firmware
Omron CP2E-N40DR-D
Omron Sysmac Cp2e-n14dt-a
Omron Sysmac CP2E-N40DT-A
Omron Sysmac CP2E-N40DT-D Firmware
Omron Sysmac Cp2e-N40DT-D Firmware
Omron Sysmac CP2E-N40DT1-D
Omron Sysmac CP2E-N40DT1-D
Omron Sysmac CP2E-N60DR-A
Omron Sysmac CP2E
Omron Sysmac CP2E-N60DR-D
Omron Sysmac CP2E-N60DR-D Firmware
Omron CP2E-N60DT-A Firmware
Omron CP2E-N60DT-A
Omron Sysmac CP2E-N60DT-D Firmware
Omron Sysmac CP2E-N60DT-D Firmware
Omron Sysmac CP2E-N60DT1-D
Omron Sysmac CP2E-N60DT1-D Firmware
Omron Sysmac CP2E
Omron Sysmac CP2E-S30DR-A
Omron Sysmac CP2E-S30DT-D Firmware
Omron Sysmac CP2E-S30DT-D Firmware
Omron Sysmac CP2E-S30DT1-D
Omron Sysmac CP2E-S30DT1-D Firmware
Omron CP2E-S40DR-A Firmware
Omron CP2E-S40DR-A Firmware
Omron Sysmac CP2E-S40DT-D
Omron CP2E-S40DT-D Firmware
Omron Sysmac CP2E
Omron Sysmac CP2E-S40DT1-D
Omron CP2E-S60DR-A
Omron CP2E-S60DR-A
Omron Sysmac CP2E-S60DT-D
Omron Sysmac CP2E-S60DT-D Firmware
Omron Sysmac CP2E-S60DT1-D
Omron Sysmac CP2E-S60DT1-D Firmware
Omron CS1W-DRM21-V1
Omron CS1W-DRM21-V1
Omron Sysmac CS1W-EIP21
Omron Sysmac CS1W-EIP21 Firmware
Omron Sysmac CS1W-ETN21 Firmware
Omron Sysmac CS1W-ETN21 Firmware
Omron CS1W-FLN22
Omron Sysmac CS1W-FLN22 Firmware
Omron Sysmac CS1W-NC[]71 Firmware
Omron Sysmac CS1W-NC[]71
Omron Sysmac CS1W-SPU01-V2
Omron Sysmac CS1W-SPU01-V2 Firmware
Omron CS1W-SPU02-V2
Omron Sysmac CS1W-SPU02-V2 Firmware

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Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is the severity of CVE-2023-0811?

    The severity of CVE-2023-0811 is rated as high due to improper access controls allowing potential unauthorized modification of sensitive security information.

  • How do I fix CVE-2023-0811?

    To fix CVE-2023-0811, update the Omron Sysmac CJ1M unit firmware to a version greater than v4.0 that addresses these access control issues.

  • What systems are affected by CVE-2023-0811?

    CVE-2023-0811 affects Omron CJ1M units with firmware version v4.0 and prior, specifically those using PROGRAM AREA WRITE commands.

  • What are the potential impacts of exploiting CVE-2023-0811?

    Exploiting CVE-2023-0811 could allow attackers to overwrite security passwords, potentially disabling security protections and allowing unauthorized access.

  • How can I confirm if my system is vulnerable to CVE-2023-0811?

    You can confirm if your system is vulnerable to CVE-2023-0811 by checking the firmware version of your Omron CJ1M unit against the disclosed vulnerable versions.

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