CVE-2021-20487

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.

CVSS v3.0 9.1 CRITICAL
CVSS v2.0 6.5 MEDIUM

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CVSS v3.0 : CRITICAL

V3 Legend

Vector :

Exploitability : 2.3 / Impact : 6.0

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope CHANGED

6.5^/10

CVSS v2.0 : MEDIUM

V2 Legend

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

Exploitability : 8.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication SINGLE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://www.ibm.com/support/pages/node/6455911	Vendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/197730	VDB Entry Vendor Advisory

Configurations

Configuration 1 (hide)

AND

OR	cpe:2.3:o:ibm:power9_system_firmware::::::::
	cpe:2.3:o:ibm:power9_system_firmware::::::::

OR	cpe:2.3:h:ibm:9008-22l:-:::::::*
	cpe:2.3:h:ibm:9009-22a:-:::::::*
	cpe:2.3:h:ibm:9009-41a:-:::::::*
	cpe:2.3:h:ibm:9009-42a:-:::::::*
	cpe:2.3:h:ibm:9040-mr9:-:::::::*
	cpe:2.3:h:ibm:9080-m9s:-:::::::*
	cpe:2.3:h:ibm:9223-22h:-:::::::*
	cpe:2.3:h:ibm:9223-42h:-:::::::*

Configuration 2 (hide)

AND

cpe:2.3:o:ibm:power9_system_firmware:*:*:*:*:*:*:*:*

OR	cpe:2.3:h:ibm:9009-22g:-:::::::*
	cpe:2.3:h:ibm:9009-41g:-:::::::*
	cpe:2.3:h:ibm:9009-42g:-:::::::*
	cpe:2.3:h:ibm:9223-22s:-:::::::*
	cpe:2.3:h:ibm:9223-42s:-:::::::*

Configuration 3 (hide)

AND

cpe:2.3:o:ibm:scale-out_lc_system_firmware:*:*:*:*:*:*:*:*

OR	cpe:2.3:h:ibm:8335-gth:-:::::::*
	cpe:2.3:h:ibm:8335-gtx:-:::::::*
	cpe:2.3:h:ibm:9183-22x:-:::::::*

Information

Published : 2021-05-26 10:15

Updated : 2021-06-14 08:11

NVD link : CVE-2021-20487

Mitre link : CVE-2021-20487

JSON object : View

CWE

CWE-347

Improper Verification of Cryptographic Signature

Products Affected

ibm

9080-m9s
9008-22l
power9_system_firmware
9009-42g
8335-gtx
9223-42s
9223-22s
scale-out_lc_system_firmware
9009-41a
9183-22x
9009-22g
9009-41g
9223-22h
9009-42a
9009-22a
9040-mr9
9223-42h
8335-gth

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