PT-2021-13988 · Ibm · Ibm Power9 Self Boot Engine

Published 2021-05-26 · Updated 2021-06-14 · CVE-2021-20487

Positive Technologies (AI Summary)

CVSS v3.1

9.1

Critical

Base vector

AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions: IBM Power9 Self Boot Engine (SBE) (affected versions not specified)

Description: The issue allows a privileged user to inject malicious code, compromising the integrity of the host firmware by bypassing the host firmware signature verification process.

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

Improper Verification of Cryptographic Signature

Weakness Enumeration

CWE-347

Related Identifiers

CVE-2021-20487

Affected Products

Ibm Power9 Self Boot Engine

References · 5

• https://exchange.xforce.ibmcloud.com/vulnerabilities/197730 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-20487 · Vendor Advisory
• https://ibm.com/support/pages/node/6455911 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-20487 · Security Note
• https://t.me/cvenotify/16257 · Telegram Post