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CertccCVE-2022-40246

HistorySep 20, 2022 - 6:15 p.m.

CVE-2022-40246

2022-09-2018:15:10

CWE-787

CWE-123

certcc

web.nvd.nist.gov

cve-2022-40246

information security

s3 resume boot

pei phase

memory isolation

confidential computing

virtual machines (vms)

smram memory

CVSS3

7.2

Attack Vector

PHYSICAL

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

6.8

Confidence

High

EPSS

0.001

Percentile

17.8%

JSON

A potential attacker can write one byte by arbitrary address at the time of the PEI phase (only during S3 resume boot mode) 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: SbPei SHA256: d827182e5f9b7a9ff0b9d3e232f7cfac43b5237e2681e11f005be627a49283a9 Module GUID: c1fbd624-27ea-40d1-aa48-94c3dc5c7e0d

Affected configurations

Nvd

Node

intelnuc_m15_laptop_kit_lapbc510_firmwareMatch0072

AND

intelnuc_m15_laptop_kit_lapbc510Match-

Node

intelnuc_m15_laptop_kit_lapbc710_firmwareMatch0072

AND

intelnuc_m15_laptop_kit_lapbc710Match-

VendorProductVersionCPE
intelnuc_m15_laptop_kit_lapbc510_firmware0072cpe:2.3:o:intel:nuc_m15_laptop_kit_lapbc510_firmware:0072:*:*:*:*:*:*:*
intelnuc_m15_laptop_kit_lapbc510-cpe:2.3:h:intel:nuc_m15_laptop_kit_lapbc510:-:*:*:*:*:*:*:*
intelnuc_m15_laptop_kit_lapbc710_firmware0072cpe:2.3:o:intel:nuc_m15_laptop_kit_lapbc710_firmware:0072:*:*:*:*:*:*:*
intelnuc_m15_laptop_kit_lapbc710-cpe:2.3:h:intel:nuc_m15_laptop_kit_lapbc710:-:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
intel	nuc_m15_laptop_kit_lapbc510_firmware	0072	cpe:2.3:o:intel:nuc_m15_laptop_kit_lapbc510_firmware:0072:::::::*
intel	nuc_m15_laptop_kit_lapbc510	-	cpe:2.3:h:intel:nuc_m15_laptop_kit_lapbc510:-:::::::*
intel	nuc_m15_laptop_kit_lapbc710_firmware	0072	cpe:2.3:o:intel:nuc_m15_laptop_kit_lapbc710_firmware:0072:::::::*
intel	nuc_m15_laptop_kit_lapbc710	-	cpe:2.3:h:intel:nuc_m15_laptop_kit_lapbc710:-:::::::*

CNA Affected

[
  {
    "product": "Aptio",
    "vendor": "AMI",
    "versions": [
      {
        "status": "affected",
        "version": "5.x"
      }
    ]
  }
]

References

www.ami.com/security-center/

www.binarly.io/advisories/BRLY-2022-014

Social References

CVSS3

7.2

Attack Vector

PHYSICAL

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

6.8

Confidence

High

EPSS

0.001

Percentile

17.8%

JSON

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