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CVE-2018-9085— Missing System x Flash Memory Write Protection Lock Bit

Quick assessment

Affected
Lenovo System x UEFI
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.

Lenovo System x是中国联想（Lenovo）公司的一款服务器。IBM System x是美国IBM公司的一款服务器。 Lenovo和IBM System x servers中存在安全漏洞。攻击者可利用该漏洞造成系统崩溃。

AI Predicted 8.1 Difficulty: Moderate EPSS 0.66% · P49
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I. Basic Information for CVE-2018-9085

Vulnerability Information
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Vulnerability Title
Missing System x Flash Memory Write Protection Lock Bit
Source: CVE Program / CVE List V5
Vulnerability Description
A write protection lock bit was left unset after boot on an older generation of Lenovo and IBM System x servers, potentially allowing an attacker with administrator access to modify the subset of flash memory containing Intel Server Platform Services (SPS) and the system Flash Descriptors.
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
Lenovo和IBM System x servers 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Lenovo System x是中国联想（Lenovo）公司的一款服务器。IBM System x是美国IBM公司的一款服务器。 Lenovo和IBM System x servers中存在安全漏洞。攻击者可利用该漏洞造成系统崩溃。
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 UEFI unspecified ~ varies -
IBM System x UEFI unspecified ~ varies -

II. Public POCs for CVE-2018-9085

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III. Intelligence Information for CVE-2018-9085

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Vendor Advisories for CVE-2018-9085 (1)

Same Patch Batch · Lenovo · 2018-11-16 · 4 CVEs total

CVE-2018-9071 CMM Security Vulnerability
CVE-2018-9073 CMM Security Vulnerability
CVE-2018-9086 Legacy Server BMC Remote Command Injection

IV. Related Vulnerabilities

Same vendor: Lenovo

V. Comments for CVE-2018-9085

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