Aptio V
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
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.
A potential attacker can execute an arbitrary code at the time of the PEI phase and influence the subsequent boot stages
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
APTIOV contains a vulnerability in the BIOS where a user or attacker may cause an improper restriction of operations wit
APTIOV contains vulnerabilities in the BIOS where a privileged user may cause “Write-what-where Condition” and “Exposure
This SMM vulnerability affects certain modules, allowing privileged attackers to execute arbitrary code, manipulate stac
The DXE module SmmComputrace contains a vulnerability that allows local attackers to leak stack or global memory. Rated
AMI AptioV contains a vulnerability in BIOS where a User may cause an unrestricted upload of a PNG Logo file with danger
AMI AptioV contains a vulnerability in BIOS where a User may cause an unrestricted upload of a BMP Logo file with danger
AMI AptioV contains a vulnerability in BIOS where an Attacker may use an improper input validation via the local network
AMI AptioV contains a vulnerability in BIOS where an Attacker may use an improper input validation via the local network
AMI AptioV contains a vulnerability in BIOS where an Attacker may use an improper input validation via the local network
Same weakness CWE-121 – Stack-based Buffer Overflow
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External POC / Exploit Code
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