Description
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.
Published: 2021-03-10
Score: 7.5 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Remediation

No vendor fix or workaround currently provided.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

Sign in to view the affected projects.

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.
History

No history.

Subscriptions

Siemens Simatic Mv420 Simatic Mv420 Firmware Simatic Mv440 Simatic Mv440 Firmware
cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

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

Reserved: 2020-10-22T00:00:00.000Z

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