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CVE-2020-8332

Quick assessment

Affected
Lenovo System x
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 System x servers是美国国际商业机器公司（IBM）的一款服务器。 IBM System x服务器存在安全漏洞，该漏洞源于在旧的BIOS模式USB驱动程序中使用的SMI回调函数的一个潜在漏洞可能允许任意代码执行。在UEFI模式下操作的服务器不受影响。

CVSS 6.4 · Medium EPSS 0.23% · P13

Possible ATT&CK Techniques 1 AI

T1203 · Exploitation for Client Execution
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I. Basic Information for CVE-2020-8332

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A potential vulnerability in the SMI callback function used in the legacy BIOS mode USB drivers in some legacy Lenovo and IBM System x servers may allow arbitrary code execution. Servers operating in UEFI mode are not affected.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
检查时间与使用时间(TOCTOU)的竞争条件
Source: CVE Program / CVE List V5
Vulnerability Title
IBM System x servers 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
IBM System x servers是美国国际商业机器公司（IBM）的一款服务器。 IBM System x服务器存在安全漏洞，该漏洞源于在旧的BIOS模式USB驱动程序中使用的SMI回调函数的一个潜在漏洞可能允许任意代码执行。在UEFI模式下操作的服务器不受影响。
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
Lenovo System x various -
IBM System x various -

II. Public POCs for CVE-2020-8332

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III. Intelligence Information for CVE-2020-8332

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Vendor Advisories for CVE-2020-8332 (1)

Same Patch Batch · Lenovo · 2020-10-14 · 5 CVEs total

CVE-2020-8349 9.8 CRITICAL CNOS 代码注入漏洞
CVE-2020-8350 8.8 HIGH Lenovo ThinkPad Stack Wireless Router 授权问题漏洞
CVE-2020-8338 7.8 HIGH Lenovo Diagnostics 代码问题漏洞
CVE-2020-8345 7.3 HIGH Lenovo Vantage 代码问题漏洞

IV. Related Vulnerabilities

Same product: System x
Same vendor: Lenovo
Same weakness: CWE-367

V. Comments for CVE-2020-8332

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