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CVE-2021-21540

Quick assessment

Affected
Dell Integrated Dell Remote Access Controller (iDRAC)
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.

DELL Dell EMC iDRAC9是美国戴尔（DELL）公司的一套包含硬件和软件的系统管理解决方案。该方案为Dell PowerEdge系统提供远程管理、崩溃系统恢复和电源控制等功能。 Dell EMC iDRAC9 4.40.00.00 之前版本存在安全漏洞，通过身份验证的远程攻击者可利用该漏洞通过注入任意大的负载来覆盖配置信息。

CVSS 5.9 · Medium EPSS 1.16% · P64

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2021-21540

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
Dell EMC iDRAC9 versions prior to 4.40.00.00 contain a stack-based overflow vulnerability. A remote authenticated attacker could potentially exploit this vulnerability to overwrite configuration information by injecting arbitrarily large payload.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
栈缓冲区溢出
Source: CVE Program / CVE List V5
Vulnerability Title
Dell EMC iDRAC9 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
DELL Dell EMC iDRAC9是美国戴尔（DELL）公司的一套包含硬件和软件的系统管理解决方案。该方案为Dell PowerEdge系统提供远程管理、崩溃系统恢复和电源控制等功能。 Dell EMC iDRAC9 4.40.00.00 之前版本存在安全漏洞，通过身份验证的远程攻击者可利用该漏洞通过注入任意大的负载来覆盖配置信息。
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
Dell Integrated Dell Remote Access Controller (iDRAC) unspecified ~ 4.40.00.00 -

II. Public POCs for CVE-2021-21540

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III. Intelligence Information for CVE-2021-21540

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Other References for CVE-2021-21540 (1)

Same Patch Batch · Dell · 2021-04-30 · 14 CVEs total

CVE-2021-21507 8.8 HIGH Dell EMC Networking X-Series 加密问题漏洞
CVE-2021-21530 8.3 HIGH Dell OpenManage Enterprise 操作系统命令注入漏洞
CVE-2021-21531 8.1 HIGH Dell EMC Unisphere for PowerMax 安全漏洞
CVE-2021-21535 7.4 HIGH Dell Hybrid Client 访问控制错误漏洞
CVE-2021-21547 6.4 MEDIUM Dell EMC Unity,UnityVSA和Unity XT 安全漏洞
CVE-2021-21536 6.2 MEDIUM Dell Hybrid Client 信息泄露漏洞
CVE-2021-21537 6.2 MEDIUM Dell Hybrid Client 信息泄露漏洞
CVE-2021-21541 6.1 MEDIUM Dell EMC iDRAC9 跨站脚本漏洞
CVE-2021-21539 5.9 MEDIUM Dell EMC iDRAC9 安全漏洞
CVE-2021-21543 4.8 MEDIUM Dell EMC iDRAC9 跨站脚本漏洞
CVE-2021-21542 4.8 MEDIUM Dell EMC iDRAC9 跨站脚本漏洞
CVE-2021-21534 4.0 MEDIUM Dell Hybrid Client 信息泄露漏洞
CVE-2021-21544 2.7 LOW Dell EMC iDRAC9 授权问题漏洞

IV. Related Vulnerabilities

Same product: Integrated Dell Remote Access Controller (iDRAC)
Same vendor: Dell
Same weakness: CWE-121

V. Comments for CVE-2021-21540

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