In SIMATIC MV400 family versions prior to v7.0.6, the ISN generator is initialized with a constant value and has constant increments. An attacker could predict and hijack TCP sessions.

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Advisories
Source ID Title
EUVD EUVD EUVD-2020-20139 In SIMATIC MV400 family versions prior to v7.0.6, the ISN generator is initialized with a constant value and has constant increments. An attacker could predict and hijack TCP sessions.
Fixes

Solution

No solution given by the vendor.


Workaround

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cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2024-08-04T16:18:45.486Z

Reserved: 2020-10-22T00:00:00

Link: CVE-2020-27632

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2021-03-10T18:15:12.797

Modified: 2024-11-21T05:21:32.823

Link: CVE-2020-27632

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses