6.8
MEDIUM
CVE-2020-8336
Lenovo ThinkPad CSME Firmware Privilege Escalation
Description

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

INFO

Published Date :

June 9, 2020, 8:15 p.m.

Last Modified :

June 22, 2020, 1:44 p.m.

Source :

[email protected]

Remotely Exploitable :

No

Impact Score :

5.9

Exploitability Score :

0.9
Affected Products

The following products are affected by CVE-2020-8336 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Lenovo thinkpad_e490s_firmware
2 Lenovo thinkpad_s3_firmware
3 Lenovo thinkpad_e490_firmware
4 Lenovo thinkpad_e590_firmware
5 Lenovo thinkpad_r490_firmware
6 Lenovo thinkpad_r590_firmware
7 Lenovo thinkpad_l390_yoga_firmware
8 Lenovo thinkpad_s2_yoga_4th_gen_firmware
9 Lenovo thinkpad_l490_firmware
10 Lenovo thinkpad_l590_firmware
11 Lenovo thinkpad_p43s_\(20rx\)_firmware
12 Lenovo thinkpad_x390_yoga_firmware
13 Lenovo thinkpad_e14_firmware
14 Lenovo thinkpad_e15_firmware
15 Lenovo thinkpad_r14_firmware
16 Lenovo thinkpad_s3_gen_2_firmware
17 Lenovo thinkpad_l13_1st_gen_firmware
18 Lenovo thinkpad_l1415_gen_1_firmware
19 Lenovo thinkpad_p1_\(20mx\)_firmware
20 Lenovo thinkpad_p1_\(20qx\)_firmware
21 Lenovo thinkpad_p52_\(20mx\)_firmware
22 Lenovo thinkpad_p53_\(20qx\)_firmware
23 Lenovo thinkpad_p53s_\(20nx\)_firmware
24 Lenovo thinkpad_p72_\(20mx\)_firmware
25 Lenovo thinkpad_p73_\(20qx\)_firmware
26 Lenovo thinkpad_t490_\(20nx\)_firmware
27 Lenovo thinkpad_t490_\(20qx\)_firmware
28 Lenovo thinkpad_t490_\(20rx\)_firmware
29 Lenovo thinkpad_t490s_\(20nx\)_firmware
30 Lenovo thinkpad_t590_\(20nx\)_firmware
31 Lenovo thinkpad_x1_carbon_\(20qx\)_firmware
32 Lenovo thinkpad_x1_carbon_\(20rx\)_firmware
33 Lenovo thinkpad_x1_extreme_\(20mx\)_firmware
34 Lenovo thinkpad_x1_extreme_\(20qx\)_firmware
35 Lenovo thinkpad_x1_yoga_\(20qx\)_firmware
36 Lenovo thinkpad_x1_yoga_\(20sx\)_firmware
37 Lenovo thinkpad_x390_\(20qx\)_firmware
38 Lenovo thinkpad_x390_\(20sx\)_firmware
: Total Affected Vendor : 1 | Products : 38
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2020-8336.

URL Resource
https://support.lenovo.com/us/en/product_security/LEN-30042 Vendor Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2020-8336 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2020-8336 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Initial Analysis by [email protected]

    Jun. 22, 2020

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:L/AC:L/Au:N/C:P/I:P/A:P)
    Added CVSS V3.1 NIST AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    Changed Reference Type https://support.lenovo.com/us/en/product_security/LEN-30042 No Types Assigned https://support.lenovo.com/us/en/product_security/LEN-30042 Vendor Advisory
    Added CWE NIST NVD-CWE-noinfo
    Added CPE Configuration AND OR *cpe:2.3:o:lenovo:thinkpad_e14_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 2020-07-10 OR cpe:2.3:h:lenovo:thinkpad_e14:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:lenovo:thinkpad_e15_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 2020-07-10 OR cpe:2.3:h:lenovo:thinkpad_e15:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:lenovo:thinkpad_r14_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 2020-07-10 OR cpe:2.3:h:lenovo:thinkpad_r14:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:lenovo:thinkpad_s3_gen_2_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 2020-07-10 OR cpe:2.3:h:lenovo:thinkpad_s3_gen_2:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:lenovo:thinkpad_e490s_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 2020-07-10 OR cpe:2.3:h:lenovo:thinkpad_e490s:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:lenovo:thinkpad_s3_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 2020-07-10 OR cpe:2.3:h:lenovo:thinkpad_s3:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:lenovo:thinkpad_e490_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 2020-07-10 OR cpe:2.3:h:lenovo:thinkpad_e490:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:lenovo:thinkpad_e590_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 2020-07-10 OR cpe:2.3:h:lenovo:thinkpad_e590:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:lenovo:thinkpad_r490_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 2020-07-10 OR cpe:2.3:h:lenovo:thinkpad_r490:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:lenovo:thinkpad_r590_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 2020-07-10 OR cpe:2.3:h:lenovo:thinkpad_r590:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:lenovo:thinkpad_l13_1st_gen_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 2020-07-10 OR cpe:2.3:h:lenovo:thinkpad_l13_1st_gen:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:lenovo:thinkpad_l1415_gen_1_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 2020-07-10 OR cpe:2.3:h:lenovo:thinkpad_l1415_gen_1:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:lenovo:thinkpad_l390_yoga_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 2020-07-10 OR cpe:2.3:h:lenovo:thinkpad_l390_yoga:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:lenovo:thinkpad_s2_yoga_4th_gen_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 2020-07-10 OR cpe:2.3:h:lenovo:thinkpad_s2_yoga_4th_gen:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:lenovo:thinkpad_l490_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 2020-07-10 OR cpe:2.3:h:lenovo:thinkpad_l490:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:lenovo:thinkpad_l590_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 2020-07-10 OR cpe:2.3:h:lenovo:thinkpad_l590:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:lenovo:thinkpad_p1_\(20mx\)_firmware:*:*:*:*:*:*:*:* versions up to (excluding) n2eet47w OR cpe:2.3:h:lenovo:thinkpad_p1_\(20mx\):-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:lenovo:thinkpad_p1_\(20qx\)_firmware:*:*:*:*:*:*:*:* versions up to (excluding) n2oet44w OR cpe:2.3:h:lenovo:thinkpad_p1_\(20qx\):-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:lenovo:thinkpad_p43s_\(20rx\)_firmware:*:*:*:*:*:*:*:* versions up to (excluding) n2iet88w OR cpe:2.3:h:lenovo:thinkpad_p43s_\(20rx\):-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:lenovo:thinkpad_p52_\(20mx\)_firmware:*:*:*:*:*:*:*:* versions up to (excluding) n2cet51w-1.34 OR cpe:2.3:h:lenovo:thinkpad_p52_\(20mx\):-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:lenovo:thinkpad_p53_\(20qx\)_firmware:*:*:*:*:*:*:*:* versions up to (excluding) n2net37w OR cpe:2.3:h:lenovo:thinkpad_p53_\(20qx\):-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:lenovo:thinkpad_p53s_\(20nx\)_firmware:*:*:*:*:*:*:*:* versions up to (excluding) n2iet88w OR cpe:2.3:h:lenovo:thinkpad_p53s_\(20nx\):-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:lenovo:thinkpad_p72_\(20mx\)_firmware:*:*:*:*:*:*:*:* versions up to (excluding) n2cet51w OR cpe:2.3:h:lenovo:thinkpad_p72_\(20mx\):-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:lenovo:thinkpad_p73_\(20qx\)_firmware:*:*:*:*:*:*:*:* versions up to (excluding) n2net37w OR cpe:2.3:h:lenovo:thinkpad_p73_\(20qx\):-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:lenovo:thinkpad_t490_\(20nx\)_firmware:*:*:*:*:*:*:*:* versions up to (excluding) n2iet88w OR cpe:2.3:h:lenovo:thinkpad_t490_\(20nx\):-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:lenovo:thinkpad_t490_\(20qx\)_firmware:*:*:*:*:*:*:*:* versions up to (excluding) n2iet88w OR cpe:2.3:h:lenovo:thinkpad_t490_\(20qx\):-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:lenovo:thinkpad_t490_\(20rx\)_firmware:*:*:*:*:*:*:*:* versions up to (excluding) n2iet88w OR cpe:2.3:h:lenovo:thinkpad_t490_\(20rx\):-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:lenovo:thinkpad_t490s_\(20nx\)_firmware:*:*:*:*:*:*:*:* versions up to (excluding) n2jet87w OR cpe:2.3:h:lenovo:thinkpad_t490s_\(20nx\):-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:lenovo:thinkpad_t590_\(20nx\)_firmware:*:*:*:*:*:*:*:* versions up to (excluding) n2iet88w OR cpe:2.3:h:lenovo:thinkpad_t590_\(20nx\):-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:lenovo:thinkpad_x1_carbon_\(20qx\)_firmware:*:*:*:*:*:*:*:* versions up to (excluding) n2het47w OR cpe:2.3:h:lenovo:thinkpad_x1_carbon_\(20qx\):-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:lenovo:thinkpad_x1_carbon_\(20rx\)_firmware:*:*:*:*:*:*:*:* versions up to (excluding) n2het47w OR cpe:2.3:h:lenovo:thinkpad_x1_carbon_\(20rx\):-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:lenovo:thinkpad_x1_extreme_\(20mx\)_firmware:*:*:*:*:*:*:*:* versions up to (excluding) n2eet47w OR cpe:2.3:h:lenovo:thinkpad_x1_extreme_\(20mx\):-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:lenovo:thinkpad_x1_extreme_\(20qx\)_firmware:*:*:*:*:*:*:*:* versions up to (excluding) n2oet44w OR cpe:2.3:h:lenovo:thinkpad_x1_extreme_\(20qx\):-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:lenovo:thinkpad_x1_yoga_\(20qx\)_firmware:*:*:*:*:*:*:*:* versions up to (excluding) n2het47w OR cpe:2.3:h:lenovo:thinkpad_x1_yoga_\(20qx\):-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:lenovo:thinkpad_x1_yoga_\(20sx\)_firmware:*:*:*:*:*:*:*:* versions up to (excluding) n2het47w OR cpe:2.3:h:lenovo:thinkpad_x1_yoga_\(20sx\):-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:lenovo:thinkpad_x390_\(20qx\)_firmware:*:*:*:*:*:*:*:* versions up to (excluding) n2jet87w OR cpe:2.3:h:lenovo:thinkpad_x390_\(20qx\):-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:lenovo:thinkpad_x390_\(20sx\)_firmware:*:*:*:*:*:*:*:* versions up to (excluding) n2set18w OR cpe:2.3:h:lenovo:thinkpad_x390_\(20sx\):-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:lenovo:thinkpad_x390_yoga_firmware:*:*:*:*:*:*:*:* versions up to (excluding) n2let74w OR cpe:2.3:h:lenovo:thinkpad_x390_yoga:-:*:*:*:*:*:*:*
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2020-8336 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2020-8336 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.07 }} 0.00%

score

0.28533

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
: