CVE-2022-26873

CVSS V2 None CVSS V3 High 8.2

Description

A potential attacker can execute an arbitrary code at the time of the PEI phase and influence the subsequent boot stages. This can lead to the mitigations bypassing, physical memory contents disclosure, discovery of any secrets from any Virtual Machines (VMs) and bypassing memory isolation and confidential computing boundaries. Additionally, an attacker can build a payload which can be injected into the SMRAM memory. This issue affects: Module name: PlatformInitAdvancedPreMem SHA256: 644044fdb8daea30a7820e0f5f88dbf5cd460af72fbf70418e9d2e47efed8d9b Module GUID: EEEE611D-F78F-4FB9-B868-55907F169280 This issue affects: AMI Aptio 5.x.

Overview

CVE ID
CVE-2022-26873

Assigner
cret@cert.org

Vulnerability Status
Analyzed

Published Version
2022-09-20T18:15:10

Last Modified Date
2022-09-26T13:49:57

Weakness Enumerations

CWE	URL
CWE-787	http://cwe.mitre.org/data/definitions/787.html

CPE Configuration (Product)

CPE	Vulnerable	Operator
		AND
cpe:2.3:o:intel:nuc_m15_laptop_kit_lapbc510_firmware:-:::::::*	1	OR
cpe:2.3:h:intel:nuc_m15_laptop_kit_lapbc510:-:::::::*	0	OR
		AND
cpe:2.3:o:intel:nuc_m15_laptop_kit_lapbc710_firmware:-:::::::*	1	OR
cpe:2.3:h:intel:nuc_m15_laptop_kit_lapbc710:-:::::::*	0	OR
		AND
cpe:2.3:o:ami:aptio_v:5.0:::::::*	1	OR

CVSS Version 3

Version
3.1

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

Attack Vector
LOCAL

Attack Compatibility
LOW

Privileges Required
HIGH

User Interaction
NONE

Scope
CHANGED

Confidentiality Impact
HIGH

Availability Impact
HIGH

Base Score
8.2

Base Severity
HIGH

Exploitability Score
1.5

Impact Score
6

References

Reference URL	Reference Tags
https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00712.html
https://www.binarly.io/advisories/BRLY-2022-027
https://www.ami.com/security-center/

Sources

Source Name	Source URL
NIST	https://nvd.nist.gov/vuln/detail/CVE-2022-26873
MITRE	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-26873

History

Created	Old Value	New Value	Data Type	Notes
2022-09-20 19:00:23				Added to TrackCVE