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CVE-2020-8340

Quick assessment

Affected
Lenovo System x IMM2 firmware for: x240, Machine Types: 7162, 2588; x440, Machine Type 7167, 2590 ; x3750 M4, Machine Type: 8753 ; x3250 M6, Machine type 3633, 3943 ; nx360 M5, Machine type 5465, 5467 ; x280/x480/x880 X6 , Machine Type 7196, 4258 ; x3850 X6 and x3950 X6, Machine type 6241 ; x3550 M5, Machine Type 5463, 8869 ; x3650 M5, Machine Type 5462, 8871; x3500 M5, Machine Type 5464, 5478
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 BladeCenter是美国IBM公司的一款刀片式服务器。该服务器是指在标准高度的机架式机箱内可插装多个卡式的服务器单元，是一种实现HAHD(High Availability High Density，高可用高密度)的低成本服务器平台，为特殊应用行业和高密度计算环境专门设计。 IBM BladeCenter中存在跨站脚本漏洞。该漏洞源于WEB应用缺少对客户端数据的正确验证。攻击者可利用该漏洞执行客户端代码。

CVSS 6.3 · Medium EPSS 0.64% · P49
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I. Basic Information for CVE-2020-8340

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A cross-site scripting (XSS) vulnerability was discovered in the legacy IBM and Lenovo System x IMM2 (Integrated Management Module 2), prior to version 5.60, embedded Baseboard Management Controller (BMC) web interface during an internal security review. This vulnerability could allow JavaScript code to be executed in the user's web browser if the user is convinced to visit a crafted URL, possibly through phishing. Successful exploitation requires specific knowledge about the user’s network to be included in the crafted URL. Impact is limited to the normal access restrictions and permissions of the user clicking the crafted URL, and subject to the user being able to connect to and already being authenticated to IMM2 or other systems. The JavaScript code is not executed on IMM2 itself.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: CVE Program / CVE List V5
Vulnerability Title
IBM BladeCenter 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
IBM BladeCenter是美国IBM公司的一款刀片式服务器。该服务器是指在标准高度的机架式机箱内可插装多个卡式的服务器单元，是一种实现HAHD(High Availability High Density，高可用高密度)的低成本服务器平台，为特殊应用行业和高密度计算环境专门设计。 IBM BladeCenter中存在跨站脚本漏洞。该漏洞源于WEB应用缺少对客户端数据的正确验证。攻击者可利用该漏洞执行客户端代码。
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 IMM2 firmware for: x240, Machine Types: 7162, 2588; x440, Machine Type 7167, 2590 ; x3750 M4, Machine Type: 8753 ; x3250 M6, Machine type 3633, 3943 ; nx360 M5, Machine type 5465, 5467 ; x280/x480/x880 X6 , Machine Type 7196, 4258 ; x3850 X6 a unspecified ~ 5.60 -
Lenovo System x IMM2 firmware for x240 M5, Machine Types: 9532, 2591 unspecified ~ 5.61 -
IBM System x IMM2 firmware unspecified ~ 5.60 -

II. Public POCs for CVE-2020-8340

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III. Intelligence Information for CVE-2020-8340

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Vendor Advisories for CVE-2020-8340 (1)

Same Patch Batch · Lenovo · 2020-09-15 · 3 CVEs total

CVE-2020-8342 7.3 HIGH Lenovo System Update 安全漏洞
CVE-2020-8346 5.5 MEDIUM Lenovo System Interface Foundation和Lenovo Vantage 安全漏洞

IV. Related Vulnerabilities

Same vendor: Lenovo
Same weakness: CWE-79

V. Comments for CVE-2020-8340

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