CVE-2021-36324
Quick assessment
Affected
Dell CPG BIOS
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 Bios是美国戴尔（Dell）公司的一个计算机主板上小型内存芯片上的嵌入式软件。 Dell BIOS 存在输入验证错误漏洞，该漏洞源于戴尔BIOS包含一个不正确的输入验证漏洞。攻击者可利用该漏洞使用SMI在SMRAM中获得任意代码执行。
Possible ATT&CK Techniques 1 AI
T1205.001 · Port Knocking
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I. Basic Information for CVE-2021-36324
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
Dell BIOS contains an improper input validation vulnerability. A local authenticated malicious user may potentially exploit this vulnerability by using an SMI to gain arbitrary code execution in SMRAM.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
输入验证不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Dell Bios 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Dell Bios是美国戴尔（Dell）公司的一个计算机主板上小型内存芯片上的嵌入式软件。 Dell BIOS 存在输入验证错误漏洞，该漏洞源于戴尔BIOS包含一个不正确的输入验证漏洞。攻击者可利用该漏洞使用SMI在SMRAM中获得任意代码执行。
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
II. Public POCs for CVE-2021-36324
| # | POC Description | Source Link | Shenlong Link |
|---|
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Other References for CVE-2021-36324 (1)
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https://www.dell.com/support/kbdoc/en-us/000192967 x_refsource_MISC
Same Patch Batch · Dell · 2021-11-12 · 6 CVEs total
| CVE-2021-36325 | 7.5 HIGH | Dell Bios 输入验证错误漏洞 |
| CVE-2021-36323 | 7.5 HIGH | Dell Bios 输入验证错误漏洞 |
| CVE-2021-21528 | 7.5 HIGH | Dell Technologies Dell PowerScale OneFS 安全漏洞 |
| CVE-2021-36315 | 6.8 MEDIUM | EMC PowerScale 安全漏洞 |
| CVE-2021-36305 | 6.5 MEDIUM | Dell Technologies Dell PowerScale OneFS 安全漏洞 |
IV. Related Vulnerabilities
V. Comments for CVE-2021-36324
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