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CVE-2022-23132— Incorrect permissions of [/var/run/zabbix] forces dac_override

Quick assessment

Affected
Zabbix Proxy, Server
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 Sia Zabbix是拉脱维亚Zabbix SIA（Zabbix Sia）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，该漏洞源于在从 RPM 安装 Zabbix 期间，DAC_OVERRIDE SELinux 功能用于访问[/var/run/zabbix]文件夹中的 PID 文件。在这种情况下，Zabbix Proxy 或 Server 进程可以绕过文件系统级别的文件读取、写入和执行权限检查。

CVSS 3.3 · Low EPSS 0.80% · P55

Possible ATT&CK Techniques 2 AI

T1562.001 T1611 · Escape to Host
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I. Basic Information for CVE-2022-23132

Vulnerability Information
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Vulnerability Title
Incorrect permissions of [/var/run/zabbix] forces dac_override
Source: CVE Program / CVE List V5
Vulnerability Description
During Zabbix installation from RPM, DAC_OVERRIDE SELinux capability is in use to access PID files in [/var/run/zabbix] folder. In this case, Zabbix Proxy or Server processes can bypass file read, write and execute permissions check on the file system level
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
访问控制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Zabbix Sia Zabbix 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Zabbix Sia Zabbix是拉脱维亚Zabbix SIA（Zabbix Sia）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，该漏洞源于在从 RPM 安装 Zabbix 期间，DAC_OVERRIDE SELinux 功能用于访问[/var/run/zabbix]文件夹中的 PID 文件。在这种情况下，Zabbix Proxy 或 Server 进程可以绕过文件系统级别的文件读取、写入和执行权限检查。
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 Proxy, Server 4.0.0 - 4.0.36 -

II. Public POCs for CVE-2022-23132

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III. Intelligence Information for CVE-2022-23132

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Mailing List Discussions for CVE-2022-23132 (2)

Other References for CVE-2022-23132 (1)

Same Patch Batch · Zabbix · 2022-01-13 · 4 CVEs total

CVE-2022-23131 9.1 CRITICAL Unsafe client-side session storage leading to authentication bypass/instance takeover via
CVE-2022-23133 6.3 MEDIUM Stored XSS in host groups configuration window in Zabbix Frontend
CVE-2022-23134 3.7 LOW Possible view of the setup pages by unauthenticated users if config file already exists

IV. Related Vulnerabilities

Same vendor: Zabbix
Same weakness: CWE-284

V. Comments for CVE-2022-23132

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