Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2020-8335

Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
01/09/2020
Last modified:
10/09/2020

Description

The BIOS tamper detection mechanism was not triggered in Lenovo ThinkPad A285, BIOS versions up to r0xuj70w; A485, BIOS versions up to r0wuj65w; T495 BIOS versions up to r12uj55w; T495s/X395, BIOS versions up to r13uj47w, while the emergency-reset button is pressed which may allow for unauthorized access.

Impact

Vector 3.x
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 6.80 MEDIUM
Vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector (AV): Physical
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

Base Score 3.x
6.80
Severity 3.x
MEDIUM
Vector 2.0
AV:L/AC:L/Au:N/C:P/I:P/A:P CVSS v2.0 Severity and Metrics:

Base Score: 4.60 MEDIUM
Vector: AV:L/AC:L/Au:N/C:P/I:P/A:P

Attack Vector (AV): Local
Attack Complexity (AC): Low
Authentication (Au): None
Confidentiality (C): Physical
Integrity (I): Physical
Availability (A): Physical

Base Score 2.0
4.60
Severity 2.0
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:lenovo:thinkpad_a275_firmware:*:*:*:*:*:*:*:* 2020-08-30 (excluding)
cpe:2.3:h:lenovo:thinkpad_a275:-:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:thinkpad_a285_firmware:*:*:*:*:*:*:*:* 2020-08-30 (excluding)
cpe:2.3:h:lenovo:thinkpad_a285:-:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:thinkpad_a475_firmware:*:*:*:*:*:*:*:* 2020-08-30 (excluding)
cpe:2.3:h:lenovo:thinkpad_a475:-:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:thinkpad_a485_firmware:*:*:*:*:*:*:*:* 2020-08-30 (excluding)
cpe:2.3:h:lenovo:thinkpad_a485:-:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:thinkpad_t495_drift_firmware:*:*:*:*:*:*:*:* 2020-08-30 (excluding)
cpe:2.3:h:lenovo:thinkpad_t495_drift:-:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:thinkpad_t495s_jazz_firmware:*:*:*:*:*:*:*:* 2020-08-30 (excluding)
cpe:2.3:h:lenovo:thinkpad_t495s_jazz:-:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:thinkpad_x1_carbon_\(20bx\)_firmware:*:*:*:*:*:*:*:* n14et54w (excluding)
cpe:2.3:h:lenovo:thinkpad_x1_carbon_\(20bx\):-:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:thinkpad_x395_firmware:*:*:*:*:*:*:*:* 2020-08-30 (excluding)

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools