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CVE-2021-20487

Quick assessment

Affected
IBM Power 9 Systems
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

IBM Power9 Self Boot Engine是美国IBM公司的一个芯片。 IBM Power9 Self Boot Engine(SBE) 存在安全漏洞，该漏洞允许具有相应权限的用户注入恶意代码，并通过主机固件签名验证过程破坏主机固件的完整性。

AI Predicted 6.5 Difficulty: Hard EPSS 0.68% · P50

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2021-20487

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
IBM Power9 Self Boot Engine(SBE) 数据伪造问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
IBM Power9 Self Boot Engine是美国IBM公司的一个芯片。 IBM Power9 Self Boot Engine(SBE) 存在安全漏洞，该漏洞允许具有相应权限的用户注入恶意代码，并通过主机固件签名验证过程破坏主机固件的完整性。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
IBM Power 9 Systems FW930 -

II. Public POCs for CVE-2021-20487

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III. Intelligence Information for CVE-2021-20487

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Vendor Advisories for CVE-2021-20487 (2)

Same Patch Batch · IBM · 2021-05-26 · 4 CVEs total

CVE-2019-4588 IBM DB2 代码问题漏洞
CVE-2021-20486 IBM Cloud Pak for Data 信息泄露漏洞
CVE-2021-20492 IBM WebSphere Application Server 代码问题漏洞

IV. Related Vulnerabilities

Same product: Power 9 Systems
Same vendor: IBM

V. Comments for CVE-2021-20487

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