CVE-2021-22127
Quick assessment
Affected
Fortinet Fortinet FortiClientLinux
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.
Fortinet FortiClient是美国Fortinet公司的一种结构代理。用于在单个模块化轻量级客户端中提供保护、合规性和安全访问。 Fortinet FortiClient 存在操作系统命令注入漏洞，未经身份验证的网络相邻攻击者可利用该漏洞在FortiClient运行的Linux设备上执行特权和任意命令。
Possible ATT&CK Techniques 1 AI
T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2021-22127
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
An improper input validation vulnerability in FortiClient for Linux 6.4.x before 6.4.3, FortiClient for Linux 6.2.x before 6.2.9 may allow an unauthenticated attacker to execute arbitrary code on the host operating system as root via tricking the user into connecting to a network with a malicious name.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Fortinet FortiClient 操作系统命令注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Fortinet FortiClient是美国Fortinet公司的一种结构代理。用于在单个模块化轻量级客户端中提供保护、合规性和安全访问。 Fortinet FortiClient 存在操作系统命令注入漏洞，未经身份验证的网络相邻攻击者可利用该漏洞在FortiClient运行的Linux设备上执行特权和任意命令。
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 |
|---|---|---|---|---|
| Fortinet | Fortinet FortiClientLinux | FortiClientLinux 6.4.2 and below, FortiClientLinux 6.2.8 and below | - |
|
II. Public POCs for CVE-2021-22127
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Same Patch Batch · Fortinet · 2022-04-06 · 16 CVEs total
| CVE-2021-26114 | 9.8 CRITICAL | Fortinet FortiWan SQL注入漏洞 |
| CVE-2022-23441 | 9.1 CRITICAL | Fortinet FortiEDR 信任管理问题漏洞 |
| CVE-2021-44169 | 8.2 HIGH | Fortinet FortiClient 安全漏洞 |
| CVE-2021-26112 | 8.1 HIGH | Fortinet FortiWAN 缓冲区错误漏洞 |
| CVE-2021-26104 | 7.8 HIGH | Fortinet 多款产品操作系统命令注入漏洞 |
| CVE-2022-23440 | 7.8 HIGH | Fortinet FortiEDR 信任管理问题漏洞 |
| CVE-2021-32585 | 7.2 HIGH | Fortinet FortiWan 跨站脚本漏洞 |
| CVE-2021-24009 | 7.2 HIGH | Fortinet FortiWan 操作系统命令注入漏洞 |
| CVE-2021-26116 | 6.7 MEDIUM | Fortinet FortiAuthenticator 操作系统命令注入漏洞 |
| CVE-2021-41026 | 6.5 MEDIUM | Fortinet FortiWeb 路径遍历漏洞 |
| CVE-2021-32593 | 6.5 MEDIUM | Fortinet FortiWan 加密问题漏洞 |
| CVE-2021-26113 | 6.2 MEDIUM | Fortinet FortiWan 信任管理问题漏洞 |
| CVE-2020-29013 | 5.4 MEDIUM | Fortinet FortiSandbox 输入验证错误漏洞 |
| CVE-2022-23446 | 4.4 MEDIUM | Fortinet FortiEDR 安全漏洞 |
| CVE-2021-43205 | 4.3 MEDIUM | Fortinet FortiClient 信息泄露漏洞 |
IV. Related Vulnerabilities
V. Comments for CVE-2021-22127
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