ICSA-21-257-13

Siemens LOGO! CMR and SIMATIC RTU 3000 (Update A)

view advisory published 2021-09-14

A vulnerability has been identified in the underlying TCP/IP stack of LOGO! CMR and SIMATIC RTU 3000 devices. It could allow an attacker with network access to the LAN interface of an affected device to hijack an ongoing connection or spoof a new one. The WAN interface, however, is not affected. Siemens has released updates for the affected products and recommends to update to the latest versions.

describes (1)

Related CVEs.

ID	severity	EPSS	exploitable	published
CVE-2021-37186US	medium5.4OT elevated	0.36% (29th)	—	2021-09-14
A vulnerability has been identified in LOGO! CMR2020 (All versions < V2.2), LOGO! CMR2040 (All versions < V2.2), SIMATIC RTU3010C (All versions < V4.0.9), SIMATIC RTU3030C (All ver…

references

External citations — patches, advisories, analysis.

remediations (6)

FixedLOGO! CMR2020
Update to V2.2 or later version
https://support.industry.siemens.com/cs/ww/en/view/109800267/
FixedLOGO! CMR2040
Update to V2.2 or later version
https://support.industry.siemens.com/cs/ww/en/view/109800267/
FixedSIMATIC RTU3010C
Update to V4.0.9 or later version
https://support.industry.siemens.com/cs/ww/en/view/109802779/
FixedSIMATIC RTU3030C
Update to V4.0.9 or later version
https://support.industry.siemens.com/cs/ww/en/view/109802779/
FixedSIMATIC RTU3031C
Update to V4.0.9 or later version
https://support.industry.siemens.com/cs/ww/en/view/109802779/
FixedSIMATIC RTU3041C
Update to V4.0.9 or later version
https://support.industry.siemens.com/cs/ww/en/view/109802779/

scry

Advisories like this name the exposed products attackers go after on your perimeter. See what is exposed on your perimeter with a free passive scan.

Free scan