What is the CVSS score of CVE-2022-33137?

CVE-2022-33137 has a CVSS 3.1 base score of 8.0 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.8%.

Is there a patch available for CVE-2022-33137?

Yes, a patch is available for CVE-2022-33137. Update the affected software to the latest version immediately.

Simatic Mv540 H Firmware CVE-2022-33137

HIGH

Insufficient Session Expiration (CWE-613)

2022-07-12 productcert@siemens.com

Information Disclosure Simatic Mv540 H Firmware Simatic Mv540 S Firmware Simatic Mv550 H Firmware Simatic Mv550 S Firmware Simatic Mv560 U Firmware Simatic Mv560 X Firmware

8.0

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

8.0 HIGH

AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

CVE Published

Jul 12, 2022 - 10:15 nvd

HIGH 8.0

DescriptionNVD

A vulnerability has been identified in SIMATIC MV540 H (All versions < V3.3), SIMATIC MV540 S (All versions < V3.3), SIMATIC MV550 H (All versions < V3.3), SIMATIC MV550 S (All versions < V3.3), SIMATIC MV560 U (All versions < V3.3), SIMATIC MV560 X (All versions < V3.3). The web session management of affected devices does not invalidate session ids in certain logout scenarios. This could allow an authenticated remote attacker to hijack other users' sessions.

AnalysisAI

Technical ContextAI

This vulnerability is classified under CWE-613. A vulnerability has been identified in SIMATIC MV540 H (All versions < V3.3), SIMATIC MV540 S (All versions < V3.3), SIMATIC MV550 H (All versions < V3.3), SIMATIC MV550 S (All versions < V3.3), SIMATIC MV560 U (All versions < V3.3), SIMATIC MV560 X (All versions < V3.3). The web session management of affected devices does not invalidate session ids in certain logout scenarios. This could allow an authenticated remote attacker to hijack other users' sessions. Affected products include: Siemens Simatic Mv540 H Firmware, Siemens Simatic Mv540 S Firmware, Siemens Simatic Mv550 H Firmware, Siemens Simatic Mv550 S Firmware, Siemens Simatic Mv560 U Firmware.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.