AmdPspP2CmboxV2 SMI Handler Exposes UEFI SPI Flash Bypass & SMM Exec
CVE-2023-52711 Published on May 28, 2024
Various Issues Due To Exposed SMI Handler in AmdPspP2CmboxV2. The first issue can be leveraged to bypass the protections that have been put in place by previous UEFI phases to prevent direct access to the SPI flash. The second issue can be used to both leak and corrupt SMM memory thus potentially leading code execution in SMM
Vulnerability Analysis
CVE-2023-52711 can be exploited with local system access, and requires small amount of user privileges. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to be very high.
Weakness Type
What is an Authorization Vulnerability?
The software does not restrict or incorrectly restricts access to a resource from an unauthorized actor.
CVE-2023-52711 has been classified to as an Authorization vulnerability or weakness.
Products Associated with CVE-2023-52711
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Affected Versions
Huawei CurieM-WFG9B:- Version CurieM-WFG9B BIOS 2.28 is affected.
- Version ota-curiem-b-bios-2.28 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.