CVE-2021-21571
Get alerts for future matching vulnerabilitiesLog in to subscribe
I. Basic Information for CVE-2021-21571
Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗ Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.
Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
Dell UEFI BIOS https stack leveraged by the Dell BIOSConnect feature and Dell HTTPS Boot feature contains an improper certificate validation vulnerability. A remote unauthenticated attacker may exploit this vulnerability using a person-in-the-middle attack which may lead to a denial of service and payload tampering.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
证书验证不恰当
Source: NVD (National Vulnerability Database)
Vulnerability Title
Dell BIOSConnect信任管理问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
DELL Dell BIOSConnect是美国戴尔（DELL）公司的一个基础平台，使 BIOS 可连接到 Dell 的 HTTP 后端，并通过 HTTP 方法加载映像。 Dell BIOSConnect feature and Dell HTTPS Boot feature 存在信任管理问题漏洞，该漏洞源于Dell UEFI BIOS https栈存在不正确的证书验证漏洞。未经身份验证的远程攻击者可利用该漏洞可以使用中间人攻击来利用这个漏洞，这种攻击可能导致拒绝服务和负载篡改。
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 | UEFI BIOS https stack | Gen 11, Gen 10 | - |
II. Public POCs for CVE-2021-21571
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POCPremium
No public POC found.
Login to generate AI POCIII. Intelligence Information for CVE-2021-21571
请登录查看更多情报信息。
- https://www.dell.com/support/kbdoc/en-us/000188682x_refsource_MISC
- https://nvd.nist.gov/vuln/detail/CVE-2021-21571
Same Patch Batch · Dell · 2021-06-24 · 4 CVEs total
| CVE-2021-21572 | 7.2 HIGH | Dell BIOSConnect feature 缓冲区错误漏洞 |
| CVE-2021-21573 | 7.2 HIGH | Dell BIOSConnect feature 缓冲区错误漏洞 |
| CVE-2021-21574 | 7.2 HIGH | Dell BIOSConnect feature 缓冲区错误漏洞 |
IV. Related Vulnerabilities
Same weakness: CWE-295
V. Comments for CVE-2021-21571
No comments yet