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Thinkcentre E93 Firmware CVE-2021-3719

MEDIUM
Improper Input Validation (CWE-20)
2021-11-12 psirt@lenovo.com
RCE Thinkcentre E93 Firmware Thinkcentre M600 Firmware Thinkcentre M700 Tiny Firmware Thinkcentre M73 Firmware Thinkcentre M73P Firmware Thinkcentre M800 Firmware Thinkcentre M818Z Firmware Thinkcentre M83 Firmware Thinkcentre M900 Firmware Thinkcentre M900X Firmware Thinkcentre M93 Firmware Thinkcentre M93P Firmware Thinkcentre M4500Q Firmware Thinkcentre M6500T S Firmware Thinkcentre M8500T S Firmware Thinkcentre X1 Firmware Thinkstation P300 Firmware Thinkstation P500 Firmware Thinkstation P700 Firmware Thinkstation P900 Firmware
6.7
CVSS 3.1 · NVD
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Severity by source

NVD PRIMARY
6.7 MEDIUM
AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Local
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

1
CVE Published
Nov 12, 2021 - 22:15 nvd
MEDIUM 6.7

DescriptionNVD

A potential vulnerability in the SMI callback function that saves and restore boot script tables used for resuming from sleep state in some ThinkCentre and ThinkStation models may allow an attacker with local access and elevated privileges to execute arbitrary code.

AnalysisAI

A potential vulnerability in the SMI callback function that saves and restore boot script tables used for resuming from sleep state in some ThinkCentre and ThinkStation models may allow an attacker. Rated medium severity (CVSS 6.7), this vulnerability is low attack complexity. No vendor patch available.

Technical ContextAI

This vulnerability is classified under CWE-20. A potential vulnerability in the SMI callback function that saves and restore boot script tables used for resuming from sleep state in some ThinkCentre and ThinkStation models may allow an attacker with local access and elevated privileges to execute arbitrary code. Affected products include: Lenovo Thinkcentre E93 Firmware, Lenovo Thinkcentre M600 Firmware, Lenovo Thinkcentre M700 Tiny Firmware, Lenovo Thinkcentre M73 Firmware, Lenovo Thinkcentre M73P Firmware.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

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CVE-2021-3719 vulnerability details – vuln.today
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