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CVE-2021-32746— Possible path traversal by use of the `doc` module

Quick assessment

Affected
Icinga icingaweb2
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.

Icinga Web 2是一个应用软件。Icinga Web 2是Icinga Project开发的下一代开源监控 Web 界面、框架和命令行界面，支持 Icinga 2、Icinga Core 和任何其他兼容 IDO 数据库的监控后端。 Icinga Web 2存在路径遍历漏洞，该漏洞源于通过“doc”模块访问某个路径，就可以访问 Web 服务器用户可读的任意文件。

CVSS 5.3 · Medium EPSS 1.31% · P68

Possible ATT&CK Techniques 1 AI

T1083 · File and Directory Discovery
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I. Basic Information for CVE-2021-32746

Vulnerability Information
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Vulnerability Title
Possible path traversal by use of the `doc` module
Source: CVE Program / CVE List V5
Vulnerability Description
Icinga Web 2 is an open source monitoring web interface, framework and command-line interface. Between versions 2.3.0 and 2.8.2, the `doc` module of Icinga Web 2 allows to view documentation directly in the UI. It must be enabled manually by an administrator and users need explicit access permission to use it. Then, by visiting a certain route, it is possible to gain access to arbitrary files readable by the web-server user. The issue has been fixed in the 2.9.0, 2.8.3, and 2.7.5 releases. As a workaround, an administrator may disable the `doc` module or revoke permission to use it from all users.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5
Vulnerability Title
Icinga Web 2 路径遍历漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Icinga Web 2是一个应用软件。Icinga Web 2是Icinga Project开发的下一代开源监控 Web 界面、框架和命令行界面，支持 Icinga 2、Icinga Core 和任何其他兼容 IDO 数据库的监控后端。 Icinga Web 2存在路径遍历漏洞，该漏洞源于通过“doc”模块访问某个路径，就可以访问 Web 服务器用户可读的任意文件。
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
Icinga icingaweb2 >= 2.3.0, <= 2.8.2 -

II. Public POCs for CVE-2021-32746

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III. Intelligence Information for CVE-2021-32746

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Vendor Advisories for CVE-2021-32746 (1)

Other References for CVE-2021-32746 (3)

IV. Related Vulnerabilities

Same product: icingaweb2
Same vendor: Icinga
Same weakness: CWE-22

V. Comments for CVE-2021-32746

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