CVE-2022-4020

Published on: Not Yet Published

Last Modified on: 12/01/2022 08:23:00 PM UTC

CVE-2022-4020

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

Certain versions of Aspire A115-21 from Acer contain the following vulnerability:

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.

CVE-2022-4020 has been assigned by [email protected] to track the vulnerability - currently rated as HIGH severity.
Affected Vendor/Software: Acer - Aspire A315-22 version = 1.04
Affected Vendor/Software: Acer - Aspire A115-21 version = 1.04
Affected Vendor/Software: Acer - Aspire A315-22G version = 1.04
Affected Vendor/Software: Acer - Extensa EX215-21 version = 1.04
Affected Vendor/Software: Acer - Extensa EX215-21G version = 1.04

CVSS3 Score: 8.2 - HIGH

Attack Vector ^ⓘ	Attack Complexity	Privileges Required	User Interaction
LOCAL	LOW	HIGH	NONE
Scope	Confidentiality Impact	Integrity Impact	Availability Impact
CHANGED	HIGH	HIGH	HIGH

CVE References

Description	Tags ^ⓘ	Link
Security Vulnerability Regarding Vulnerability That May Allow Changes to Secure Boot Settings - Acer Community	community.acer.com text/html	MISC community.acer.com/en/kb/articles/15520-security-vulnerability-regarding-vulnerability-that-may-allow-changes-to-secure-boot-settings

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There are currently no QIDs associated with this CVE

Known Affected Configurations (CPE V2.3)

Type	Vendor	Product	Version	Update	Edition	Language
Hardware	Acer	Aspire A115-21	-	All	All	All
Operating System	Acer	Aspire A115-21 Firmware	-	All	All	All
Hardware	Acer	Aspire A315-22	-	All	All	All
Hardware	Acer	Aspire A315-22g	-	All	All	All
Operating System	Acer	Aspire A315-22g Firmware	-	All	All	All
Operating System	Acer	Aspire A315-22 Firmware	-	All	All	All
Hardware	Acer	Extensa Ex215-21	-	All	All	All
Hardware	Acer	Extensa Ex215-21g	-	All	All	All
Operating System	Acer	Extensa Ex215-21g Firmware	-	All	All	All
Operating System	Acer	Extensa Ex215-21 Firmware	-	All	All	All

cpe:2.3:h:acer:aspire_a115-21:-:*:*:*:*:*:*:*:
cpe:2.3:o:acer:aspire_a115-21_firmware:-:*:*:*:*:*:*:*:
cpe:2.3:h:acer:aspire_a315-22:-:*:*:*:*:*:*:*:
cpe:2.3:h:acer:aspire_a315-22g:-:*:*:*:*:*:*:*:
cpe:2.3:o:acer:aspire_a315-22g_firmware:-:*:*:*:*:*:*:*:
cpe:2.3:o:acer:aspire_a315-22_firmware:-:*:*:*:*:*:*:*:
cpe:2.3:h:acer:extensa_ex215-21:-:*:*:*:*:*:*:*:
cpe:2.3:h:acer:extensa_ex215-21g:-:*:*:*:*:*:*:*:
cpe:2.3:o:acer:extensa_ex215-21g_firmware:-:*:*:*:*:*:*:*:
cpe:2.3:o:acer:extensa_ex215-21_firmware:-:*:*:*:*:*:*:*:

No vendor comments have been submitted for this CVE

Social Mentions

Source	Title	Posted (UTC)
@CVEreport	CVE-2022-4020 : Vulnerability in the HQSwSmiDxe DXE driver on some consumer Acer Notebook devices may allow an atta… twitter.com/i/web/status/1…	2022-11-28 13:04:56
@ESETresearch	#CVE-2022-4020 is found in the DXE driver HQSwSmiDxe , which checks for the “BootOrderSecureBootDisable” NVRAM var… twitter.com/i/web/status/1…	2022-11-28 13:55:51
/r/netcve	CVE-2022-4020	2022-11-28 13:38:40
/r/Hacks_And_Exploits	New Flaw in Acer Laptops Could Let Attackers Disable Secure Boot Protection	2022-11-29 17:00:49