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CVE-2023-32322— Arbitrary file read in Ombi

Quick assessment

Affected
Ombi-app Ombi
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.

Ombi是友好的媒体请求工具。 Ombi 4.38.2之前版本存在路径遍历漏洞，该漏洞源于存在任意文件读取漏洞，可能导致信息泄露。

CVSS 4.9 · Medium EPSS 2.14% · P80
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I. Basic Information for CVE-2023-32322

Vulnerability Information
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Vulnerability Title
Arbitrary file read in Ombi
Source: CVE Program / CVE List V5
Vulnerability Description
Ombi is an open source application which allows users to request specific media from popular self-hosted streaming servers. Versions prior to 4.38.2 contain an arbitrary file read vulnerability where an Ombi administrative user may access files available to the Ombi server process on the host operating system. Ombi administrators may not always be local system administrators and so this may violate the security expectations of the system. The arbitrary file read vulnerability was present in `ReadLogFile` and `Download` endpoints in `SystemControllers.cs` as the parameter `logFileName` is not sanitized before being combined with the `Logs` directory. When using `Path.Combine(arg1, arg2, arg3)`, an attacker may be able to escape to folders/files outside of `Path.Combine(arg1, arg2)` by using ".." in `arg3`. In addition, by specifying an absolute path for `arg3`, `Path.Combine` will completely ignore the first two arguments and just return just `arg3`. This vulnerability can lead to information disclosure. The Ombi `documentation` suggests running Ombi as a Service with Administrator privileges. An attacker targeting such an application may be able to read the files of any Windows user on the host machine and certain system files. This issue has been addressed in commit `b8a8f029` and in release version 4.38.2. Users are advised to upgrade. There are no known workarounds for this vulnerability. This issue is also tracked as GHSL-2023-088.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/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
Ombi 路径遍历漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Ombi是友好的媒体请求工具。 Ombi 4.38.2之前版本存在路径遍历漏洞，该漏洞源于存在任意文件读取漏洞，可能导致信息泄露。
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
Ombi-app Ombi < 4.38.2 -

II. Public POCs for CVE-2023-32322

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III. Intelligence Information for CVE-2023-32322

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Patches & Fixes for CVE-2023-32322 (1)

Vendor Advisories for CVE-2023-32322 (1)

Other References for CVE-2023-32322 (3)

IV. Related Vulnerabilities

Same weakness: CWE-22

V. Comments for CVE-2023-32322

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