CVE-2022-4020
Acer Notebook UEFI Secure Boot Variable Manipulation Vulnerability
Description
Vulnerability in the HQSwSmiDxe DXE driver on some consumer Acer Notebook devices may allow an attacker with elevated privileges to modify UEFI Secure Boot settings by modifying an NVRAM variable.
INFO
Published Date :
Nov. 28, 2022, 1:15 p.m.
Last Modified :
Nov. 7, 2023, 3:56 a.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
6.0
Exploitability Score :
1.5
Public PoC/Exploit Available at Github
CVE-2022-4020 has a 2 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
Affected Products
The following products are affected by CVE-2022-4020
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.
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-2022-4020.
| URL | Resource |
|---|---|
| https://community.acer.com/en/kb/articles/15520-security-vulnerability-regarding-vulnerability-that-may-allow-changes-to-secure-boot-settings | 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).
👓A collection of papers/tools/exploits for UEFI security.
awesome awesome-list bios collection exploit firmware security uefi
This is a python alternative to gofetch
Python Shell
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2022-4020 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2022-4020 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 -
CVE Modified by [email protected]
Nov. 07, 2023
Action Type Old Value New Value Changed Description Vulnerability in the HQSwSmiDxe DXE driver on some consumer Acer Notebook devices may allow an attacker with elevated privileges to modify UEFI Secure Boot settings by modifying an NVRAM variable. Vulnerability in the HQSwSmiDxe DXE driver on some consumer Acer Notebook devices may allow an attacker with elevated privileges to modify UEFI Secure Boot settings by modifying an NVRAM variable. -
Initial Analysis by [email protected]
Dec. 01, 2022
Action Type Old Value New Value Added CVSS V3.1 NIST AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H Changed Reference Type https://community.acer.com/en/kb/articles/15520-security-vulnerability-regarding-vulnerability-that-may-allow-changes-to-secure-boot-settings No Types Assigned https://community.acer.com/en/kb/articles/15520-security-vulnerability-regarding-vulnerability-that-may-allow-changes-to-secure-boot-settings Vendor Advisory Added CWE NIST CWE-276 Added CPE Configuration AND OR *cpe:2.3:o:acer:aspire_a315-22g_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:acer:aspire_a315-22g:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:acer:aspire_a115-21_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:acer:aspire_a115-21:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:acer:aspire_a315-22_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:acer:aspire_a315-22:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:acer:extensa_ex215-21_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:acer:extensa_ex215-21:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:acer:extensa_ex215-21g_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:acer:extensa_ex215-21g:-:*:*:*:*:*:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2022-4020 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-2022-4020
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.04 }} 0.00%
score
0.12642
percentile