Nuc M15 Laptop Kit Lapbc510 Firmware
CVE-2022-40250
HIGH
Severity by source
AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Lifecycle Timeline
1DescriptionNVD
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.
AnalysisAI
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). Rated high severity (CVSS 8.8), this vulnerability is low attack complexity. Public exploit code available and no vendor patch available.
Technical ContextAI
This vulnerability is classified under CWE-121. 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 include: Intel Nuc M15 Laptop Kit Lapbc510 Firmware, Intel Nuc M15 Laptop Kit Lapbc710 Firmware, Ami Aptio V.
RemediationAI
No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.
An attacker can exploit this vulnerability to elevate privileges from ring 0 to ring -2, execute arbitrary code in Syste
A potential attacker can execute an arbitrary code at the time of the PEI phase and influence the subsequent boot stages
A potential attacker can write one byte by arbitrary address at the time of the PEI phase (only during S3 resume boot mo
Improper access control for some Intel(R) NUC BIOS firmware may allow a privileged user to potentially enable escalation
Improper buffer restrictions in BIOS firmware for some Intel(R) NUC M15 Laptop Kits before version BCTGL357.0074 may all
Improper access control in system firmware for some Intel(R) NUCs may allow a privileged user to potentially enabl
Improper buffer restrictions in system firmware for some Intel(R) NUCs may allow a privileged user to potentially enable
Out-of-bounds write in firmware for some Intel(R) NUCs may allow an authenticated user to potentially enable denial of s
Insecure inherited permissions in some Intel(R) HID Event Filter software installers before version 2.2.2.1 may allow an
Non-Transparent Sharing of Microarchitectural Resources in some Intel(R) NUC BIOS firmware may allow a privileged user t
Improper initialization in some Intel(R) NUC 13 Extreme Compute Element, Intel(R) NUC 13 Extreme Kit, Intel(R) NUC 11 Pe
Same weakness CWE-121 – Stack-based Buffer Overflow
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External POC / Exploit Code
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