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Vulnerability Details :

CVE-2022-40250

Summary
Assigner-certcc
Assigner Org ID-37e5125f-f79b-445b-8fad-9564f167944b
Published At-20 Sep, 2022 | 17:35
Updated At-28 May, 2025 | 18:23
Rejected At-
Credits

Stack overflow vulnerability in SMI handler on SmmSmbiosElog.

An attacker can exploit this vulnerability to elevate privileges from ring 0 to ring -2, execute arbitrary code in System Management Mode - an environment more privileged than operating system (OS) and completely isolated from it. Running arbitrary code in SMM additionally bypasses SMM-based SPI flash protections against modifications, which can help an attacker to install a firmware backdoor/implant into BIOS. Such a malicious firmware code in BIOS could persist across operating system re-installs. Additionally, this vulnerability potentially could be used by malicious actors to bypass security mechanisms provided by UEFI firmware (for example, Secure Boot and some types of memory isolation for hypervisors). This issue affects: Module name: SmmSmbiosElog SHA256: 3a8acb4f9bddccb19ec3b22b22ad97963711550f76b27b606461cd5073a93b59 Module GUID: 8e61fd6b-7a8b-404f-b83f-aa90a47cabdf This issue affects: AMI Aptio 5.x. This issue affects: AMI Aptio 5.x.

Vendors
-
Not available
Products
-
Metrics (CVSS)
VersionBase scoreBase severityVector
Weaknesses
Attack Patterns
Solution/Workaround
References
HyperlinkResource Type
EPSS History
Score
Latest Score
-
N/A
No data available for selected date range
Percentile
Latest Percentile
-
N/A
No data available for selected date range
Stakeholder-Specific Vulnerability Categorization (SSVC)
▼Common Vulnerabilities and Exposures (CVE)
cve.org
Assigner:certcc
Assigner Org ID:37e5125f-f79b-445b-8fad-9564f167944b
Published At:20 Sep, 2022 | 17:35
Updated At:28 May, 2025 | 18:23
Rejected At:
▼CVE Numbering Authority (CNA)
Stack overflow vulnerability in SMI handler on SmmSmbiosElog.

An attacker can exploit this vulnerability to elevate privileges from ring 0 to ring -2, execute arbitrary code in System Management Mode - an environment more privileged than operating system (OS) and completely isolated from it. Running arbitrary code in SMM additionally bypasses SMM-based SPI flash protections against modifications, which can help an attacker to install a firmware backdoor/implant into BIOS. Such a malicious firmware code in BIOS could persist across operating system re-installs. Additionally, this vulnerability potentially could be used by malicious actors to bypass security mechanisms provided by UEFI firmware (for example, Secure Boot and some types of memory isolation for hypervisors). This issue affects: Module name: SmmSmbiosElog SHA256: 3a8acb4f9bddccb19ec3b22b22ad97963711550f76b27b606461cd5073a93b59 Module GUID: 8e61fd6b-7a8b-404f-b83f-aa90a47cabdf This issue affects: AMI Aptio 5.x. This issue affects: AMI Aptio 5.x.

Affected Products
Vendor
AMIAMI
Product
Aptio
Versions
Affected
  • 5.x
Problem Types
TypeCWE IDDescription
CWECWE-121CWE-121 Stack-based Buffer Overflow
Type: CWE
CWE ID: CWE-121
Description: CWE-121 Stack-based Buffer Overflow
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Binarly efiXplorer team
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00712.html
x_refsource_MISC
https://www.ami.com/security-center/
x_refsource_MISC
https://www.binarly.io/advisories/BRLY-2022-016
x_refsource_MISC
Hyperlink: https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00712.html
Resource:
x_refsource_MISC
Hyperlink: https://www.ami.com/security-center/
Resource:
x_refsource_MISC
Hyperlink: https://www.binarly.io/advisories/BRLY-2022-016
Resource:
x_refsource_MISC
▼Authorized Data Publishers (ADP)
1. CVE Program Container
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00712.html
x_refsource_MISC
x_transferred
https://www.ami.com/security-center/
x_refsource_MISC
x_transferred
https://www.binarly.io/advisories/BRLY-2022-016
x_refsource_MISC
x_transferred
Hyperlink: https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00712.html
Resource:
x_refsource_MISC
x_transferred
Hyperlink: https://www.ami.com/security-center/
Resource:
x_refsource_MISC
x_transferred
Hyperlink: https://www.binarly.io/advisories/BRLY-2022-016
Resource:
x_refsource_MISC
x_transferred
2. CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
3.18.8HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Version: 3.1
Base score: 8.8
Base severity: HIGH
Vector:
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
Information is not available yet
▼National Vulnerability Database (NVD)
nvd.nist.gov
Source:cret@cert.org
Published At:20 Sep, 2022 | 18:15
Updated At:28 May, 2025 | 19:15

An attacker can exploit this vulnerability to elevate privileges from ring 0 to ring -2, execute arbitrary code in System Management Mode - an environment more privileged than operating system (OS) and completely isolated from it. Running arbitrary code in SMM additionally bypasses SMM-based SPI flash protections against modifications, which can help an attacker to install a firmware backdoor/implant into BIOS. Such a malicious firmware code in BIOS could persist across operating system re-installs. Additionally, this vulnerability potentially could be used by malicious actors to bypass security mechanisms provided by UEFI firmware (for example, Secure Boot and some types of memory isolation for hypervisors). This issue affects: Module name: SmmSmbiosElog SHA256: 3a8acb4f9bddccb19ec3b22b22ad97963711550f76b27b606461cd5073a93b59 Module GUID: 8e61fd6b-7a8b-404f-b83f-aa90a47cabdf This issue affects: AMI Aptio 5.x. This issue affects: AMI Aptio 5.x.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Primary3.18.8HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Secondary3.18.8HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Type: Primary
Version: 3.1
Base score: 8.8
Base severity: HIGH
Vector:
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Type: Secondary
Version: 3.1
Base score: 8.8
Base severity: HIGH
Vector:
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
CPE Matches
Intel Corporation
intel
>>nuc_m15_laptop_kit_lapbc510_firmware>>bc0074
cpe:2.3:o:intel:nuc_m15_laptop_kit_lapbc510_firmware:bc0074:*:*:*:*:*:*:*
Intel Corporation
intel
>>nuc_m15_laptop_kit_lapbc510>>-
cpe:2.3:h:intel:nuc_m15_laptop_kit_lapbc510:-:*:*:*:*:*:*:*
Intel Corporation
intel
>>nuc_m15_laptop_kit_lapbc710_firmware>>bc0074
cpe:2.3:o:intel:nuc_m15_laptop_kit_lapbc710_firmware:bc0074:*:*:*:*:*:*:*
Intel Corporation
intel
>>nuc_m15_laptop_kit_lapbc710>>-
cpe:2.3:h:intel:nuc_m15_laptop_kit_lapbc710:-:*:*:*:*:*:*:*
AMI
ami
>>aptio_v>>5.0
cpe:2.3:o:ami:aptio_v:5.0:*:*:*:*:*:*:*
Weaknesses
CWE IDTypeSource
CWE-121Secondarycret@cert.org
CWE-787Primarynvd@nist.gov
CWE ID: CWE-121
Type: Secondary
Source: cret@cert.org
CWE ID: CWE-787
Type: Primary
Source: nvd@nist.gov
Evaluator Description
Evaluator Impact

Evaluator Solution

Vendor Statements
References
HyperlinkSourceResource
https://www.ami.com/security-center/cret@cert.org
Vendor Advisory
https://www.binarly.io/advisories/BRLY-2022-016cret@cert.org
Exploit
Third Party Advisory
https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00712.htmlcret@cert.org
Not Applicable
Third Party Advisory
https://www.ami.com/security-center/af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory
https://www.binarly.io/advisories/BRLY-2022-016af854a3a-2127-422b-91ae-364da2661108
Exploit
Third Party Advisory
https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00712.htmlaf854a3a-2127-422b-91ae-364da2661108
Not Applicable
Third Party Advisory
Hyperlink: https://www.ami.com/security-center/
Source: cret@cert.org
Resource:
Vendor Advisory
Hyperlink: https://www.binarly.io/advisories/BRLY-2022-016
Source: cret@cert.org
Resource:
Exploit
Third Party Advisory
Hyperlink: https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00712.html
Source: cret@cert.org
Resource:
Not Applicable
Third Party Advisory
Hyperlink: https://www.ami.com/security-center/
Source: af854a3a-2127-422b-91ae-364da2661108
Resource:
Vendor Advisory
Hyperlink: https://www.binarly.io/advisories/BRLY-2022-016
Source: af854a3a-2127-422b-91ae-364da2661108
Resource:
Exploit
Third Party Advisory
Hyperlink: https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00712.html
Source: af854a3a-2127-422b-91ae-364da2661108
Resource:
Not Applicable
Third Party Advisory

Change History

0
Information is not available yet

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