CVE-2021-20040
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I. Basic Information for CVE-2021-20040
Vulnerability Information
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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
A relative path traversal vulnerability in the SMA100 upload funtion allows a remote unauthenticated attacker to upload crafted web pages or files as a 'nobody' user. This vulnerability affected SMA 200, 210, 400, 410 and 500v appliances.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
相对路径遍历
Source: NVD (National Vulnerability Database)
Vulnerability Title
Sonicwall SMA100 路径遍历漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Sonicwall SMA100是美国Sonicwall公司的一款安全访问网关设备。 SonicWall SMA100 上传功能中存在路径遍历漏洞，该漏洞允许未经身份验证的远程攻击者以nobody用户身份上传精心制作的网页或文件。此漏洞影响了 SMA 200、210、400、410 和 500v 设备。
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 |
|---|---|---|---|---|
| SonicWall | SonicWall SMA100 | 10.2.0.8-37sv and earlier | - |
II. Public POCs for CVE-2021-20040
| # | POC Description | Source Link | Shenlong Link |
|---|
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No public POC found.
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- https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0026x_refsource_CONFIRM
- https://nvd.nist.gov/vuln/detail/CVE-2021-20040
Same Patch Batch · SonicWall · 2021-12-08 · 9 CVEs total
| CVE-2021-20047 | SonicWall Global VPN client 代码问题漏洞 | |
| CVE-2021-20045 | SonicWall SMA100 安全漏洞 | |
| CVE-2021-20044 | Sonicwall SMA100 操作系统命令注入漏洞 | |
| CVE-2021-20043 | Sonicwall SMA100 缓冲区错误漏洞 | |
| CVE-2021-20042 | SonicWall SMA100 安全漏洞 | |
| CVE-2021-20041 | SonicWall SMA100安全漏洞 | |
| CVE-2021-20039 | Sonicwall SMA100 操作系统操作系统命令注入漏洞 | |
| CVE-2021-20038 | Sonicwall SMA100 缓冲区错误漏洞 |
IV. Related Vulnerabilities
Same weakness: CWE-23
- CVE-2026-8209
Gibbon<30.0.01路径遍历漏洞导致拒绝服务 - CVE-2026-43533
OpenClaw < 2026.4.10 - Arbitrary Local File Read via QQBot M - CVE-2026-43616
Detect-It-Easy < 3.21 Path Traversal Arbitrary File Write - CVE-2026-42085
OpenC3 COSMOS: Arbitrary write to plugins directory via path - CVE-2026-22070
ColorOS Assistant Path Traversal Vulnerability
V. Comments for CVE-2021-20040
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