Local Code Execution Vulnerability in Lenovo ThinkPad Products
CVE-2021-3599

6.7MEDIUM

Key Information:

Vendor
Lenovo
Status
Thinkpad BiOS
Vendor
CVE Published:
12 November 2021

Summary

A potential vulnerability has been identified in the SMI (System Management Interrupt) callback function utilized for accessing flash devices in select Lenovo ThinkPad models. This flaw could potentially allow an attacker, having local access along with elevated privileges, to execute arbitrary code on the affected systems. Proper mitigation strategies should be implemented to safeguard against unauthorized access and exploitation of this vulnerability.

Affected Version(s)

ThinkPad BIOS various

References

https://support.lenovo.com/us/en/product_security/LEN-67440
x_refsource_MISC

CVSS V3.1

Score:
6.7
Severity:
MEDIUM
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
High
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Lenovo thanks Itai Liba and Assaf Carlsbad from SentinelOne for reporting these issues.
.