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CVE-2022-43515— X-Forwarded-For header is active by default causes access to Zabbix sites in maintenance mode

Quick assessment

Affected
Zabbix Frontend
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.

Zabbix是Zabbix公司的一套开源的监控系统。该系统支持网络监控、服务器监控、云监控和应用监控等。 Zabbix 存在安全漏洞，攻击者利用该漏洞可以绕过此保护并使用未在定义范围内列出的 IP 地址访问实例。

CVSS 5.3 · Medium EPSS 1.26% · P69
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I. Basic Information for CVE-2022-43515

Vulnerability Information
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Vulnerability Title
X-Forwarded-For header is active by default causes access to Zabbix sites in maintenance mode
Source: CVE Program / CVE List V5
Vulnerability Description
Zabbix Frontend provides a feature that allows admins to maintain the installation and ensure that only certain IP addresses can access it. In this way, any user will not be able to access the Zabbix Frontend while it is being maintained and possible sensitive data will be prevented from being disclosed. An attacker can bypass this protection and access the instance using IP address not listed in the defined range.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
输入验证不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Zabbix 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Zabbix是Zabbix公司的一套开源的监控系统。该系统支持网络监控、服务器监控、云监控和应用监控等。 Zabbix 存在安全漏洞，攻击者利用该漏洞可以绕过此保护并使用未在定义范围内列出的 IP 地址访问实例。
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
Zabbix Frontend 4.0.0-4.0.44 -

II. Public POCs for CVE-2022-43515

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III. Intelligence Information for CVE-2022-43515

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Mailing List Discussions for CVE-2022-43515 (1)

Other References for CVE-2022-43515 (1)

IV. Related Vulnerabilities

Same product: Frontend
Same vendor: Zabbix
Same weakness: CWE-20

V. Comments for CVE-2022-43515

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