Vulnerability CVE-2021-20487
Published: 2021-05-26

Description:
IBM Power9 Self Boot Engine(SBE) could allow a privileged user to inject malicious code and compromise the integrity of the host firmware bypassing the host firmware signature verification process.

Type:

CWE-347

 (Improper Verification of Cryptographic Signature)

CVSS2 => (AV:N/AC:L/Au:S/C:P/I:P/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
6.5/10
6.4/10
8/10
Exploit range
Attack complexity
Authentication
Remote
Low
Single time
Confidentiality impact
Integrity impact
Availability impact
Partial
Partial
Partial

 References:
https://www.ibm.com/support/pages/node/6455911
https://exchange.xforce.ibmcloud.com/vulnerabilities/197730
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