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CVE-2021-22130

Quick assessment

Affected
Fortinet Fortinet FortiProxy
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存在缓冲区错误漏洞，该漏洞源于FortiProxy物理设备CLI中的边界错误。通过身份验证的远程用户可以运行具有较大cpuset掩码值的“diagnose sys cpuset”，触发基于堆栈的缓冲区溢出，并在目标系统上执行任意代码。该漏洞允许远程用户在目标系统上执行任意代码。以下产品和版本受到影响：FortiProxy：1.

CVSS 6.7 · Medium EPSS 1.11% · P63

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2021-22130

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A stack-based buffer overflow vulnerability in FortiProxy physical appliance CLI 2.0.0 to 2.0.1, 1.2.0 to 1.2.9, 1.1.0 to 1.1.6, 1.0.0 to 1.0.7 may allow an authenticated, remote attacker to perform a Denial of Service attack by running the `diagnose sys cpuset` with a large cpuset mask value. Fortinet is not aware of any successful exploitation of this vulnerability that would lead to code execution.
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 FortiProxy SSL VPN 缓冲区错误漏洞
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存在缓冲区错误漏洞，该漏洞源于FortiProxy物理设备CLI中的边界错误。通过身份验证的远程用户可以运行具有较大cpuset掩码值的“diagnose sys cpuset”，触发基于堆栈的缓冲区溢出，并在目标系统上执行任意代码。该漏洞允许远程用户在目标系统上执行任意代码。以下产品和版本受到影响：FortiProxy：1.
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 FortiProxy FortiProxy 2.0.0 to 2.0.1, 1.2.0 to 1.2.9, 1.1.0 to 1.1.6, 1.0.0 to 1.0.7 -

II. Public POCs for CVE-2021-22130

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III. Intelligence Information for CVE-2021-22130

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Vendor Advisories for CVE-2021-22130 (1)

IV. Related Vulnerabilities

Same product: Fortinet FortiProxy
Same vendor: Fortinet

V. Comments for CVE-2021-22130

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