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 versions < V4.0.9), SIMATIC RTU3031C (All versions < V4.0.9), SIMATIC RTU3041C (All versions < V4.0.9). The underlying TCP/IP stack does not properly calculate the random numbers used as ISN (Initial Sequence Numbers). An adjacent attacker with network access to the LAN interface could interfere with traffic, spoof the connection and gain access to sensitive information.
References
History

No history.

cve-icon MITRE Information

Status: PUBLISHED

Assigner: siemens

Published: 2021-09-14T10:47:49

Updated: 2022-02-09T15:16:46

Reserved: 2021-07-21T00:00:00


Link: CVE-2021-37186

JSON object: View

cve-icon NVD Information

Status : Analyzed

Published: 2021-09-14T11:15:25.850

Modified: 2022-04-29T17:19:40.967


Link: CVE-2021-37186

JSON object: View

cve-icon Redhat Information

No data.

CWE