CVE-2021-26103
Quick assessment
Affected
Fortinet Fortinet FortiOS
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 FortiProxy SSL VPN是美国 （Fortinet）公司的一个应用软件。提供了一个入侵检测功能。 Fortinet FortiProxy SSL VPN 存在数据伪造问题漏洞，该漏洞可能允许远程、未经身份验证的攻击者进行跨站点请求伪造 (CSRF) 攻击。此漏洞仅影响 web 模式或 full 模式下的 SSL VPN。
Possible ATT&CK Techniques 1 AI
T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2021-26103
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
An insufficient verification of data authenticity vulnerability (CWE-345) in the user interface of FortiProxy verison 2.0.3 and below, 1.2.11 and below and FortiGate verison 7.0.0, 6.4.6 and below, 6.2.9 and below of SSL VPN portal may allow a remote, unauthenticated attacker to conduct a cross-site request forgery (CSRF) attack . Only SSL VPN in web mode or full mode are impacted by this vulnerability.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Fortinet FortiProxy SSL VPN 数据伪造问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Fortinet FortiProxy SSL VPN是美国 （Fortinet）公司的一个应用软件。提供了一个入侵检测功能。 Fortinet FortiProxy SSL VPN 存在数据伪造问题漏洞，该漏洞可能允许远程、未经身份验证的攻击者进行跨站点请求伪造 (CSRF) 攻击。此漏洞仅影响 web 模式或 full 模式下的 SSL VPN。
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 FortiOS | FortiOS 7.0.0, 6.4.5, 6.4.4, 6.4.3, 6.4.2, 6.4.1, 6.4.0, 6.2.9, 6.2.8, 6.2.7, 6.2.6, 6.2.5, 6.2.4, 6.2.3, 6.2.2, 6.2.1, 6.2.0, 6.0.14, 6.0.13, 6.0.12, 6.0.11, 6.0.10, 6.0.9, 6.0.8, 6.0.7, 6.0.6, 6.0.5, 6.0.4, 6.0.3, 6.0.2, 6.0.1, 6.0.0, 5.6.14, 5.6.13, 5. | - |
|
II. Public POCs for CVE-2021-26103
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2021-26103 (1)
-
https://fortiguard.com/advisory/FG-IR-20-158 x_refsource_CONFIRM
Same Patch Batch · Fortinet · 2021-12-08 · 28 CVEs total
| CVE-2021-41017 | 8.8 HIGH | Fortinet FortiWeb 缓冲区错误漏洞 |
| CVE-2021-42758 | 8.8 HIGH | Fortinet FortiWLC 访问控制错误漏洞 |
| CVE-2021-42760 | 8.8 HIGH | Fortinet FortiWLM SQL注入漏洞 |
| CVE-2021-43067 | 8.3 HIGH | Fortinet FortiAuthenticator 信息泄露漏洞 |
| CVE-2021-36180 | 8.1 HIGH | Fortinet FortiWeb 操作系统命令注入漏洞 |
| CVE-2021-26109 | 8.1 HIGH | Fortinet FortiOS 输入验证错误漏洞 |
| CVE-2021-36173 | 8.0 HIGH | Fortinet FortiOS 缓冲区错误漏洞 |
| CVE-2021-26110 | 7.8 HIGH | Fortinet FortiOS 安全漏洞 |
| CVE-2021-41021 | 7.8 HIGH | Fortinet FortiNAC 安全漏洞 |
| CVE-2021-41024 | 7.5 HIGH | Fortinet FortiOS 路径遍历漏洞 |
| CVE-2021-41014 | 7.5 HIGH | Fortinet FortiWeb 资源管理错误漏洞 |
| CVE-2021-26108 | 7.5 HIGH | Fortinet FortiOS 信任管理问题漏洞 |
| CVE-2021-41025 | 7.3 HIGH | Fortinet FortiWeb 竞争条件问题漏洞 |
| CVE-2021-41027 | 7.3 HIGH | Fortinet FortiWeb 缓冲区错误漏洞 |
| CVE-2021-41029 | 6.4 MEDIUM | Fortinet FortiWLM 跨站脚本漏洞 |
| CVE-2021-42757 | 6.3 MEDIUM | Fortinet FortiOS 缓冲区错误漏洞 |
| CVE-2021-41015 | 6.1 MEDIUM | Fortinet FortiWeb跨站脚本漏洞 |
| CVE-2021-43063 | 6.1 MEDIUM | Fortinet FortiWeb 跨站脚本漏洞 |
| CVE-2021-36188 | 6.1 MEDIUM | Fortinet FortiWeb 跨站脚本漏洞 |
| CVE-2021-36190 | 5.5 MEDIUM | Fortinet FortiWeb安全漏洞 |
Showing top 20 of 28 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
V. Comments for CVE-2021-26103
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