PT-2023-1402 · Amd · Amd Secure Processor+1

Published 2023-01-10 · Updated 2025-04-09 · CVE-2021-26343

Positive Technologies (AI Summary)

CVSS v2.0

6.4

Medium

Base vector

AV:N/AC:L/Au:N/C:P/I:N/A:P

Name of the Vulnerable Software and Affected Versions AMD BIOS (affected versions not specified)

Description The issue is related to insufficient validation in ASP BIOS and DRTM commands, which may allow malicious supervisor x86 software to disclose the contents of sensitive memory, resulting in information disclosure. It is also associated with a vulnerability in the implementation of AMD Secure Processor (ASP) technology in the BIOS firmware of AMD processors, related to inadequate protection of service data. This could allow a remote attacker to gain unauthorized access to protected information.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exposure of Resource to Wrong Sphere

Information Disclosure

Weakness Enumeration

CWE-668

CWE-200

Related Identifiers

BDU:2023-00782

CVE-2021-26343

Affected Products

Amd Bios

Amd Secure Processor

References · 7

• https://amd.com/en/corporate/product-security/bulletin/AMD-SB-1032 · Vendor Advisory
• https://bdu.fstec.ru/vul/2023-00782 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2021-26343 · Security Note
• https://osv.dev/vulnerability/CVE-2021-26343 · Vendor Advisory
• https://support.lenovo.com/us/en/product_security/LEN-87730 · Note
• https://amd.com/en/corporate/product-security/bulletin/amd-sb-1032 · Note
• https://t.me/cvenotify/118433 · Telegram Post