Description
Omron CS series, CJ series, and CP series PLCs through 2022-05-18 use cleartext passwords. They feature a UM Protection setting that allows users or system integrators to configure a password in order to restrict sensitive engineering operations (such as project/logic uploads and downloads). This password is set using the OMRON FINS command Program Area Protect and unset using the command Program Area Protect Clear, both of which are transmitted in cleartext.
References (2)
Core 2
Core References
Third Party Advisory x_refsource_misc
https://www.forescout.com/blog/
Third Party Advisory, US Government Resource x_refsource_misc
https://www.cisa.gov/uscert/ics/advisories/icsa-22-179-02
Scores
CVSS v3
7.5
EPSS
0.0050
EPSS Percentile
38.8%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Details
CWE
CWE-319
Status
published
Products (8)
omron/cp1w-cif41_firmware
omron/cx-programmer
< 9.6
omron/sysmac_cj2h_firmware
< 1.5
omron/sysmac_cj2m_firmware
< 2.1
omron/sysmac_cp1e_firmware
< 1.30
omron/sysmac_cp1h_firmware
< 1.30
omron/sysmac_cp1l_firmware
< 1.10
omron/sysmac_cs1_firmware
< 4.1
Published
Jul 26, 2022
Tracked Since
Feb 18, 2026