A Predictable Value Range from Previous Values issue was discovered in Schneider Electric Modicon PLCs Modicon M221, firmware versions prior to Version 1.5.0.0, Modicon M241, firmware versions prior to Version 4.0.5.11, and Modicon M251, firmware versions prior to Version 4.0.5.11. The affected products generate insufficiently random TCP initial sequence numbers that may allow an attacker to predict the numbers from previous values. This may allow an attacker to spoof or disrupt TCP connections.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: icscert

Published: 2017-06-30T02:35:00

Updated: 2024-08-05T15:18:49.582Z

Reserved: 2017-02-16T00:00:00

Link: CVE-2017-6030

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Analyzed

Published: 2017-06-30T03:29:00.390

Modified: 2022-02-03T13:45:51.223

Link: CVE-2017-6030

cve-icon Redhat

No data.