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Vulnerability Details :

CVE-2020-8336

Assigner-lenovo

Assigner Org ID-da227ddf-6e25-4b41-b023-0f976dcaca4b

Published At-09 Jun, 2020 | 19:50

Updated At-16 Sep, 2024 | 19:56

Lenovo implemented Intel CSME Anti-rollback ARB protections on some ThinkPad models to prevent roll back of CSME Firmware in flash.

EPSS History

Score

Latest Score

N/A

Percentile

Latest Percentile

N/A

▼Common Vulnerabilities and Exposures (CVE)

cve.org

Assigner:lenovo

Assigner Org ID:da227ddf-6e25-4b41-b023-0f976dcaca4b

Published At:09 Jun, 2020 | 19:50

Updated At:16 Sep, 2024 | 19:56

▼CVE Numbering Authority (CNA)

Lenovo implemented Intel CSME Anti-rollback ARB protections on some ThinkPad models to prevent roll back of CSME Firmware in flash.

Affected Products

Vendor

Lenovo Group Limited

Product

BIOS

Versions

Affected

various

Problem Types

Type	CWE ID	Description
text	N/A	anti rollback prevention

Type: text

CWE ID: N/A

Description: anti rollback prevention

Metrics

Version	Base score	Base severity	Vector
3.1	6.4	MEDIUM	CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Version: 3.1

Base score: 6.4

Base severity: MEDIUM

Vector:

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

Solutions

Update system firmware to the version (or newer) indicated for your model in the Product Impact section of LEN-30042.

Credits

Lenovo thanks Maxim Goryachy & Mark Ermolov of Positive Technologies

References

Hyperlink	Resource
https://support.lenovo.com/us/en/product_security/LEN-30042	x_refsource_MISC

Hyperlink: https://support.lenovo.com/us/en/product_security/LEN-30042

Resource:

x_refsource_MISC

▼Authorized Data Publishers (ADP)

CVE Program Container

References

Hyperlink	Resource
https://support.lenovo.com/us/en/product_security/LEN-30042	x_refsource_MISC x_transferred

Hyperlink: https://support.lenovo.com/us/en/product_security/LEN-30042

Resource:

x_refsource_MISC

x_transferred

▼National Vulnerability Database (NVD)

nvd.nist.gov

Source:psirt@lenovo.com

Published At:09 Jun, 2020 | 20:15

Updated At:22 Jun, 2020 | 13:44

Lenovo implemented Intel CSME Anti-rollback ARB protections on some ThinkPad models to prevent roll back of CSME Firmware in flash.

Date Added	Due Date	Vulnerability Name	Required Action
	N/A

Metrics

Type	Version	Base score	Base severity	Vector
Primary	3.1	6.8	MEDIUM	CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Secondary	3.1	6.4	MEDIUM	CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Primary	2.0	4.6	MEDIUM	AV:L/AC:L/Au:N/C:P/I:P/A:P

Type: Primary

Version: 3.1

Base score: 6.8

Base severity: MEDIUM

Vector:

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

Type: Secondary

Version: 3.1

Base score: 6.4

Base severity: MEDIUM

Vector:

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

Type: Primary

Version: 2.0

Base score: 4.6

Base severity: MEDIUM

Vector:

AV:L/AC:L/Au:N/C:P/I:P/A:P

CPE Matches

Lenovo Group Limited

>>thinkpad_e14_firmware>>Versions before 2020-07-10(exclusive)

cpe:2.3:o:lenovo:thinkpad_e14_firmware:*:*:*:*:*:*:*:*

Lenovo Group Limited

>>thinkpad_e14>>-

cpe:2.3:h:lenovo:thinkpad_e14:-:*:*:*:*:*:*:*

Lenovo Group Limited

>>thinkpad_e15_firmware>>Versions before 2020-07-10(exclusive)

cpe:2.3:o:lenovo:thinkpad_e15_firmware:*:*:*:*:*:*:*:*

Lenovo Group Limited

>>thinkpad_e15>>-

cpe:2.3:h:lenovo:thinkpad_e15:-:*:*:*:*:*:*:*

Lenovo Group Limited

>>thinkpad_r14_firmware>>Versions before 2020-07-10(exclusive)

cpe:2.3:o:lenovo:thinkpad_r14_firmware:*:*:*:*:*:*:*:*

Lenovo Group Limited

>>thinkpad_r14>>-

cpe:2.3:h:lenovo:thinkpad_r14:-:*:*:*:*:*:*:*

Lenovo Group Limited

>>thinkpad_s3_gen_2_firmware>>Versions before 2020-07-10(exclusive)

cpe:2.3:o:lenovo:thinkpad_s3_gen_2_firmware:*:*:*:*:*:*:*:*

Lenovo Group Limited

>>thinkpad_s3_gen_2>>-

cpe:2.3:h:lenovo:thinkpad_s3_gen_2:-:*:*:*:*:*:*:*

Lenovo Group Limited

>>thinkpad_e490s_firmware>>Versions before 2020-07-10(exclusive)

cpe:2.3:o:lenovo:thinkpad_e490s_firmware:*:*:*:*:*:*:*:*

Lenovo Group Limited

>>thinkpad_e490s>>-

cpe:2.3:h:lenovo:thinkpad_e490s:-:*:*:*:*:*:*:*

Lenovo Group Limited

>>thinkpad_s3_firmware>>Versions before 2020-07-10(exclusive)

cpe:2.3:o:lenovo:thinkpad_s3_firmware:*:*:*:*:*:*:*:*

Lenovo Group Limited

>>thinkpad_s3>>-

cpe:2.3:h:lenovo:thinkpad_s3:-:*:*:*:*:*:*:*

Lenovo Group Limited

>>thinkpad_e490_firmware>>Versions before 2020-07-10(exclusive)

cpe:2.3:o:lenovo:thinkpad_e490_firmware:*:*:*:*:*:*:*:*

Lenovo Group Limited

>>thinkpad_e490>>-

cpe:2.3:h:lenovo:thinkpad_e490:-:*:*:*:*:*:*:*

Lenovo Group Limited

>>thinkpad_e590_firmware>>Versions before 2020-07-10(exclusive)

cpe:2.3:o:lenovo:thinkpad_e590_firmware:*:*:*:*:*:*:*:*

Lenovo Group Limited

>>thinkpad_e590>>-

cpe:2.3:h:lenovo:thinkpad_e590:-:*:*:*:*:*:*:*

Lenovo Group Limited

>>thinkpad_r490_firmware>>Versions before 2020-07-10(exclusive)

cpe:2.3:o:lenovo:thinkpad_r490_firmware:*:*:*:*:*:*:*:*

Lenovo Group Limited

>>thinkpad_r490>>-

cpe:2.3:h:lenovo:thinkpad_r490:-:*:*:*:*:*:*:*

Lenovo Group Limited

>>thinkpad_r590_firmware>>Versions before 2020-07-10(exclusive)

cpe:2.3:o:lenovo:thinkpad_r590_firmware:*:*:*:*:*:*:*:*

Lenovo Group Limited

>>thinkpad_r590>>-

cpe:2.3:h:lenovo:thinkpad_r590:-:*:*:*:*:*:*:*

Lenovo Group Limited

>>thinkpad_l13_1st_gen_firmware>>Versions before 2020-07-10(exclusive)

cpe:2.3:o:lenovo:thinkpad_l13_1st_gen_firmware:*:*:*:*:*:*:*:*

Lenovo Group Limited

>>thinkpad_l13_1st_gen>>-

cpe:2.3:h:lenovo:thinkpad_l13_1st_gen:-:*:*:*:*:*:*:*

Lenovo Group Limited

>>thinkpad_l1415_gen_1_firmware>>Versions before 2020-07-10(exclusive)

cpe:2.3:o:lenovo:thinkpad_l1415_gen_1_firmware:*:*:*:*:*:*:*:*

Lenovo Group Limited

>>thinkpad_l1415_gen_1>>-

cpe:2.3:h:lenovo:thinkpad_l1415_gen_1:-:*:*:*:*:*:*:*

Lenovo Group Limited

>>thinkpad_l390_yoga_firmware>>Versions before 2020-07-10(exclusive)

cpe:2.3:o:lenovo:thinkpad_l390_yoga_firmware:*:*:*:*:*:*:*:*

Lenovo Group Limited

>>thinkpad_l390_yoga>>-

cpe:2.3:h:lenovo:thinkpad_l390_yoga:-:*:*:*:*:*:*:*

Lenovo Group Limited

>>thinkpad_s2_yoga_4th_gen_firmware>>Versions before 2020-07-10(exclusive)

cpe:2.3:o:lenovo:thinkpad_s2_yoga_4th_gen_firmware:*:*:*:*:*:*:*:*

Lenovo Group Limited

>>thinkpad_s2_yoga_4th_gen>>-

cpe:2.3:h:lenovo:thinkpad_s2_yoga_4th_gen:-:*:*:*:*:*:*:*

Lenovo Group Limited

>>thinkpad_l490_firmware>>Versions before 2020-07-10(exclusive)

cpe:2.3:o:lenovo:thinkpad_l490_firmware:*:*:*:*:*:*:*:*

Lenovo Group Limited

>>thinkpad_l490>>-

cpe:2.3:h:lenovo:thinkpad_l490:-:*:*:*:*:*:*:*

Lenovo Group Limited

>>thinkpad_l590_firmware>>Versions before 2020-07-10(exclusive)

cpe:2.3:o:lenovo:thinkpad_l590_firmware:*:*:*:*:*:*:*:*

Lenovo Group Limited

>>thinkpad_l590>>-

cpe:2.3:h:lenovo:thinkpad_l590:-:*:*:*:*:*:*:*

Lenovo Group Limited

>>thinkpad_p1_\(20mx\)_firmware>>Versions before n2eet47w(exclusive)

cpe:2.3:o:lenovo:thinkpad_p1_\(20mx\)_firmware:*:*:*:*:*:*:*:*

Lenovo Group Limited

>>thinkpad_p1_\(20mx\)>>-

cpe:2.3:h:lenovo:thinkpad_p1_\(20mx\):-:*:*:*:*:*:*:*

Lenovo Group Limited

>>thinkpad_p1_\(20qx\)_firmware>>Versions before n2oet44w(exclusive)

cpe:2.3:o:lenovo:thinkpad_p1_\(20qx\)_firmware:*:*:*:*:*:*:*:*

Lenovo Group Limited

>>thinkpad_p1_\(20qx\)>>-

cpe:2.3:h:lenovo:thinkpad_p1_\(20qx\):-:*:*:*:*:*:*:*

Lenovo Group Limited

>>thinkpad_p43s_\(20rx\)_firmware>>Versions before n2iet88w(exclusive)

cpe:2.3:o:lenovo:thinkpad_p43s_\(20rx\)_firmware:*:*:*:*:*:*:*:*

Lenovo Group Limited

>>thinkpad_p43s_\(20rx\)>>-

cpe:2.3:h:lenovo:thinkpad_p43s_\(20rx\):-:*:*:*:*:*:*:*

Lenovo Group Limited

>>thinkpad_p52_\(20mx\)_firmware>>Versions before n2cet51w-1.34(exclusive)

cpe:2.3:o:lenovo:thinkpad_p52_\(20mx\)_firmware:*:*:*:*:*:*:*:*

Lenovo Group Limited

>>thinkpad_p52_\(20mx\)>>-

cpe:2.3:h:lenovo:thinkpad_p52_\(20mx\):-:*:*:*:*:*:*:*

Lenovo Group Limited

>>thinkpad_p53_\(20qx\)_firmware>>Versions before n2net37w(exclusive)

cpe:2.3:o:lenovo:thinkpad_p53_\(20qx\)_firmware:*:*:*:*:*:*:*:*

Lenovo Group Limited

>>thinkpad_p53_\(20qx\)>>-

cpe:2.3:h:lenovo:thinkpad_p53_\(20qx\):-:*:*:*:*:*:*:*

Lenovo Group Limited

>>thinkpad_p53s_\(20nx\)_firmware>>Versions before n2iet88w(exclusive)

cpe:2.3:o:lenovo:thinkpad_p53s_\(20nx\)_firmware:*:*:*:*:*:*:*:*

Lenovo Group Limited

>>thinkpad_p53s_\(20nx\)>>-

cpe:2.3:h:lenovo:thinkpad_p53s_\(20nx\):-:*:*:*:*:*:*:*

Lenovo Group Limited

>>thinkpad_p72_\(20mx\)_firmware>>Versions before n2cet51w(exclusive)

cpe:2.3:o:lenovo:thinkpad_p72_\(20mx\)_firmware:*:*:*:*:*:*:*:*

Lenovo Group Limited

>>thinkpad_p72_\(20mx\)>>-

cpe:2.3:h:lenovo:thinkpad_p72_\(20mx\):-:*:*:*:*:*:*:*

Lenovo Group Limited

>>thinkpad_p73_\(20qx\)_firmware>>Versions before n2net37w(exclusive)

cpe:2.3:o:lenovo:thinkpad_p73_\(20qx\)_firmware:*:*:*:*:*:*:*:*

Lenovo Group Limited

>>thinkpad_p73_\(20qx\)>>-

cpe:2.3:h:lenovo:thinkpad_p73_\(20qx\):-:*:*:*:*:*:*:*

Lenovo Group Limited

>>thinkpad_t490_\(20nx\)_firmware>>Versions before n2iet88w(exclusive)

cpe:2.3:o:lenovo:thinkpad_t490_\(20nx\)_firmware:*:*:*:*:*:*:*:*

Lenovo Group Limited

>>thinkpad_t490_\(20nx\)>>-

cpe:2.3:h:lenovo:thinkpad_t490_\(20nx\):-:*:*:*:*:*:*:*

Weaknesses

CWE ID	Type	Source
NVD-CWE-noinfo	Primary	nvd@nist.gov

CWE ID: NVD-CWE-noinfo

Type: Primary

Source: nvd@nist.gov

References

Hyperlink	Source	Resource
https://support.lenovo.com/us/en/product_security/LEN-30042	psirt@lenovo.com	Vendor Advisory

Hyperlink: https://support.lenovo.com/us/en/product_security/LEN-30042

Source: psirt@lenovo.com

Resource:

Vendor Advisory

CVE-2020-8336

Credits

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Products

Metrics (CVSS)

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Attack Patterns

Solution/Workaround

References

EPSS History

Score

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Stakeholder-Specific Vulnerability Categorization (SSVC)

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