CVE-2021-26116
Quick assessment
Affected
Fortinet Fortinet FortiAuthenticator
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 FortiAuthenticator是美国飞塔（Fortinet）公司的一款集中式的用户身份管理解决方案。 Fortinet FortiAuthenticator 存在安全漏洞，该漏洞允许经过身份验证的攻击者通过以下方式执行未经授权的命令专门为现有命令设计的参数。
Possible ATT&CK Techniques 3 AI
T1059 · Command and Scripting Interpreter T1059.004 · Unix Shell T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2021-26116
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
An improper neutralization of special elements used in an OS command vulnerability in the command line interpreter of FortiAuthenticator before 6.3.1 may allow an authenticated attacker to execute unauthorized commands via specifically crafted arguments to existing commands.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/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 FortiAuthenticator 操作系统命令注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Fortinet FortiAuthenticator是美国飞塔（Fortinet）公司的一款集中式的用户身份管理解决方案。 Fortinet FortiAuthenticator 存在安全漏洞，该漏洞允许经过身份验证的攻击者通过以下方式执行未经授权的命令专门为现有命令设计的参数。
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 FortiAuthenticator | FortiAuthenticator before 6.3.1 | - |
|
II. Public POCs for CVE-2021-26116
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Vendor Advisories for CVE-2021-26116 (1)
-
https://fortiguard.com/advisory/FG-IR-21-068 x_refsource_CONFIRM
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-2021-22127 | 7.1 HIGH | Fortinet FortiClient 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-2021-26116
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